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Top Challenger Tips'n Tricks
subpage listing for


Keyless Go Entry System
(Operation and Diagnostics)

Dodge Challenger 2008-2013

(updated 04/10/14)



Removed START Button and KeyLess Go FOBIK


There have been many comments and questions posed by Challenger owners when they have a problem or issue with their Keyless Go Entry Systems. 

Much of the trouble is with owners and there not being familiar or knowledgeable in the operation and use of their Keyless Go system. 
Dodge has had several major issues with components in the system and have issued several TSB (Technical Service Bulletin) and RRT (Rapid Response Transmittals) concerning specific issues addressed.
The Dodge Keyless Go system is fairly complex in that it uses multiple components in conjunction with KEELOQ signal encryption to provide a fairly safe level of security. 

There have been manufacturing issues with the FOBIK, VTSS, WIN and PEM components that have warranted module replacement.  Many dealer techs have not have enough time or experience with this newer system to do comprehensive repair, and having intermittent issues with multiple components can be very time consuming to isolate and repair. 

So, it is very important that you as a user know how to use your keyless Go system and help isolate intermittent problems to aid in any dealer repair work.



Here is a list of popular complaints or problems expressed by owners with the FOBIK and KeyLess Go Entry system;


1.  Infamous "Key Not Detected" message on EVIC (Instrument Cluster Display)
     This can occur when the vehicle interior is HOT or very COLD.  Intermittent operations can be related to temperature extremes.
     This also can occur with intermittent operation of FOBIK transponder or PEM module operations


2.  Remote Start works, doesn't work, works (intermittent operations?)

     Battery threshold level is sensitive as well as the many sensors that have to be satisfied before remote start operations.


3.  Trunk mysteriously pops open, resulting in drained vehicle battery if not observed and corrected.

     FOBIK can be intermittent and/or operator had FOBIK in pocket or purse and buttons were pressed inadvertently.


4.  Vehicle battery mysterious drained and car won't start. 
     Operator hit START button more than once to shut car off and inadvertently left the vehicle in AUX mode, which will result in battery draining down and eventual discharge.


5.  Car locks and unlocks but cannot start vehicle via push button.

     "Key not detected" or Key Damaged message may be displayed.  Remove START BUTTON cover and insert FOBIK into slot and use like standard key.


6.  Battery is dead and vehicle will not start with the FOBIK and now I cannot remove the FOB!?!?
     Read the tips below and see why this condition occurs.


7.  Keyfob does not open trunk?
     Does the trunk open from inside trunk manual release button?  If not you have a fuse blown or Instrument Cluster output issue.

     Try using other spare FOBIK to ensure unit is good.  If spare works then you have a FOBIK issue, if not then you need to have the
     PEM module tested to ensure CANBUS operations are good to the instrument cluster and that your trunk actuator is in fact good.



Much of this information on KeyLess Go Systems is scattered through the owner' manuals but like most folks, they never get around to actually reading the entire manual and only one of the several operations to be able to start the vehicle.




Complexity and Troubleshooting

Here is a recent message posted on a Dodge Challenger Forum that the owner is expressing frustration at his new Challenger and the problems with the "Keyless Go System". 
He is typical of most Challenger owners in that he (and many dealer tech's) are unfamiliar with exactly how the system actually works and how to identify a problem with one of the modules in the system (ie. VTSS, WIN, PEM or a FOBIK).


Originally Posted by gsprinkel View Post

Thanks for the info Midnite. I will check them out and see what happens from there. The remote
start system that I have is the one that was included on the vehicle from the factory. It is a true
letdown knowing that many of us have paid a large sum of money for our
cars and to have such
a common problem throughout the brand. It is also a major disappointment when you wake up
to find over a foot of snow outside and you can't start your car up from inside to let it warm up
and defrost. While this isn't an everyday occurrence, it's fairly consistent. Some mornings, it will
fire right up with the remote start, some mornings I have to be within a few feet of it, and other
mornings it will not fire at all.

With the Remote Start feature, the vehicle will not start via FOBIK if it detects a problem to the point of performing a "start inhibit" if it sees anything listed in the Start Inhibit Function list (Tip:95).

There was a also recent TSB on the Remote Start Issue and sensing battery level. This as well as other TSB's and RRT's have been issued over the past year or so dealing with RKE and Keyless Entry System Issues.  This also includes the new "Passive Entry" addition to the 2011 Challengers.

I will list these for reference here;

03/15/11 - 2011 - #08-002-11 - Decklid Can Be Opened Without The Key Fob Being In The Proximity Of The Vehicle.

07/28/10 - 0910 - #08-020-10 - Remote Start Intermittently Inoperative
05/14/10 - 2010 -
#08-010-10 - Flash: WIN Module For Intermittent RKE Functions
04/19/10 - 2010 -
RRT-10022  - Flash: WIN Module (Intermittent FOBIK Functions)
08/04/09 - 2009 -
RRT-09043  - Flash: PEM Module ("Key Not Detected" issue)

In addition;

Keep in mind that that FOBIK of the Keyless Entry System operates on two different frequencies and at three different signal strength levels. The system also utilizes three different antenna as well. The rolling code counter/algorithm has been problematic from the start, but does has addressed some issues with the WIN and PEM module flash updates.

IF your FOBIK has a low battery level you should see this "notification" on your EVIC status screen at the "engine start sequence" (pressing start button).

Note that you have two FOBIK's and one may be a problem and you need to know how to do some basic troubleshooting and note where the problem exists.

I have a lot of info on
Challenger Tips'n Tricks #142 for tips on our Keyless Entry System as well as about a half dozen other tips on what to do and not to do (like battery replacement) as well.

Dealer tech's at many dealerships have not had time or enough experience to really pinpoint FOBIK Transponder, WIN or PEM module problems and the system can be pretty confusing and tough to troubleshoot.

Some have found that removing the battery from the FOBIK and putting it back in seems to help restore operations, but the problem with "Key not detected) issues do return in short order. Removing the battery and placing it right back into the FOBIK, basically "reboots" the unit and resets the KEELOQ rolling code internal counter.

You may have to remove the start button and insert the FOBIK as a key in order to help "identify specific" Keyless Go System problems.


To consolidate the many "tips" the main
Top Challenger Tips'n Tricks
listing page has on the Keyless Entry System, I have condensed all of them
to this page and the specific tips listed below;

Tip:31 Keyless Entry Start and CEL (Check Engine Light)
Tip:37 Windows "Express Down" using FOBIK.
Tip:44 Vehicle Theft Security System (VTSS).
Tip:49 Key FOB? Battery replacement? Dead FOBIK? 
Tip:95 Remote Start Function Inhibitors!
Tip:96 What does the term FOB, KEYFOB or FOBIK mean?
Tip:107 FOBIK (Key Fob) Repair and erratic operations
Tip:111 Push Button Start Overlay Trim
Tip:117 Keyless Go and KEELOQ Encryption/Cipher
Tip:123 Keyless Go Ignition/Pushbutton functions
Tip:126 FOBIK "TRAPPED" IN WIN (Wireless Ignition Node)
Tip:131 Custom FOBIK covers
Tip:142 Keyless Go Button (Tech Tip & Operation Info)
Tip:162 FOBIK and PEM Radio Frequencies
Tip:164 Emergency or Valet key use and VTSS
Tip:172 New "Passive Entry" addition to Remote Keyless Entry (RKE) features for 2011
Tip:199 Dodge Channels Challenger Keyless Enter-N-Go Video Documentary
Tip:201 Is addition of Keyless GO System on R/T possible?
Tip:204 FOBIK (Key Fob) disassembly, battery change.
Tip 209 Vehicle Theft Security System (VTSS) will not reset when activated?


Keyless Entry Start and CEL (Check Engine Light)

If you have the push button start feature (Keyless Go) and your "check engine light" comes on, your FOBIK (key fob) remote start will work but it will only run for about 10 seconds, then stop.  After that, you'll have to restart the car by removing the start button cover and insert/use the FOBIK as a key.

See Tip:142 Keyless Go Button (Tech Tip & Operation Info) for more specific documentation on Keyless Go System operations.

Windows "Express Down" using FOBIK.

Hit your UNLOCK button to unlock your doors and then press OPEN again and HOLD it down. BOTH windows will come down to cool the car off. Releasing the HOLD on the unlock button while windows are opening will STOP the windows open function in progress.  Great to cool off a hot car as you are approaching and unlocking it.

This is documented in the 2009 Challenger Owner's Manual [ pg. 24 ]

This is documented in the 2010 Challenger Owner’s Manual [pg.23] and  2011 Challenger Owners Manual [pg. 24] but this feature is not called “Express Down”. 
This manual refers to this feature as “Remote Open Window Feature”. 

All the above are located in the “Things to know before starting your vehicle”.

NOTE: Update for 2012-13 models, express down or remote open function has been eliminated from FOBIK operations. 
If your vehicle has the newer "Keyless Enter'n Go" where you can open the vehicle by touching the door handles
(having the FOBIK in proximity) then you will not have this feature any longer.

Vehicle Theft Security System (VTSS).

The VTSS tamper alert feature will sounds the horn three times upon disarming, if the alarm was triggered and has since timed-out (about 18 minutes) or if the battery has been disconnected and reconnected.

This feature alerts the vehicle operator the VTSS alarm was activated while the vehicle was unattended.

Active disarming of the VTSS occurs when the vehicle is unlocked by pressing the Unlock button of the RKE transmitter. Once the alarm has been activated, either disarming method deactivates the alarm.

Pressing Panic button on the FOBIK or RKE transmitter will not disarm the VTSS.

Key FOB? Battery replacement? Dead FOBIK? 

Read the following info:


There's a battery in this thing? Last couple of days I had to hit the un-lock button a couple of times to get it un-locked.
Any warning of a low battery?
Are you stuck out in the cold with a dead battery?
Will the car start?  I'm looking at the FOB and I don't see how you get inside it to change batteries.


Response 1:

There is a battery in the FOB. No worries, if the FOB dies you can always use your hard (valet) key to get in the car but you are screwed in trying to start it.
There is a LOW battery indicator warning which should come on in your dash/instrument cluster display when FOB begins to get low.
Just because your FOBIK will not work does not mean it has a dead battery, read on.


Response 2:

If the battery dies in the FOBIK, it will still start the car. The FOBIK doesn't need a battery installed to start it in the ignition. The transponder in the FOBIK is energized by a large coil in the WIN (Wireless Ignition Node). If the battery dies, only the RKE or keyless go functions will stop working.  To remove Start button, use small screwdriver and press the key button out from the housing at (bottom) 6 o'clock position.  Insert the small end into the WIN slot and use it just like a key.

To open the FOBIK, just remove the valet key and use a screwdriver and put it between the top and  bottom housing where the valet key was and twist, it will pop right open.

Response 3

From the Challenger service manual ..."The FOBIK transponder cannot be adjusted or repaired.  If ineffective or damaged, the entire FOBIK and RKE transmitter unit must be replaced." It should be covered under your 3/36 warranty!  The dealer should have a remote signal strength tester to fully test the entire system.  Once a FOBIK is "married" to a vehicle electronically, there is no means to use it on any other vehicle or erase/reuse it.  Only the dealer can do this initial programming.

Response 4

The Keyless Go system actually utilizes two controller modules and three separate antenna. One is the WIN module and one is the PEM (Personal Entry Module).  The Keyless Go system works under the KEELOQ encryption system ( see Tip:117 ).  This system uses a "rolling code" encryption and the FOBIK may on a rare occasion become "un-synced" from the PEM module. 

When this happens the FOBIK will appear "dead" or have a dead battery, when in fact it is just "out of sync" with the PEM module.  To find out if this is the case, you will have to pop off the START BUTTON and insert the FOBIK like a key and when doing so it will use the WIN module to sync the system's rolling code "counter". 

Once you have used the FOBIK as a key to start the vehicle, you can then remove it after driving or whatever and see if you can now resume functions with the FOBIK. 
If it works as normal, then this is what happened it lost sync with the "rolling code encryption counter".  If this continues on a frequent basis, have the FOBIK checked by your dealer. 

Also use the other spare or second FOBIK (you should have two when purchasing the vehicle) about every six months or so, to keep it in sync as well.  The security system is based on the rolling code "encryption" of KEELOQ, and an unused FOBIK could possible loose sync with this security feature and will need to be inserted into the WIN to sync back up.


Battery access is through a door located on the rear of the FOB. Insert small, flat blade screwdriver into the slot and gently pry open the access door.
The recommended replacement battery is one CR2032.


Here is a clip right from the Challengers Owner's Manual!




Warning! Warning!
Changing the battery in a Keyless Go (FOBIK) can be a bit dangerous to the FOBIK if it isn't done very carefully.

There are 2 very small capacitors, right on the edge of the PCB. If not re-assembled properly after changing the battery, you have a 50-50 chance of breaking either one or both of these capacitors or the solder joints that hold them to the PCB.  Because of this very problem, the PCB (printed circuit bd.) had to be re-designed to move these components away from the edge.  If you break/damage one, The FOBIK will still work with all functions except the Keyless Go.


SEE ALSO: Tip:107 FOBIK (Key Fob) Repair and erratic operations.
FOBIK "TRAPPED" IN WIN (Wireless Ignition Node)

Remote Start Function Inhibitors!

The following list below are items that can prevent your REMOTE START from working on your Challenger. This is where you press the REMOTE START push button and the car horn beeps once and the lights flash on once, and nothing happens?  Sometimes its intermittent and annoying, and other times it can be pin pointed to a specific proximity switch or module communications problem.  Here is a complete list of Remote Start Inhibitor functions or codes!


Information for dealer Service Tech and Scan Tool usage;

(1.)  Using the scan tool, select ECU VIEW.
(2.)  Select the TIPM or FCM section.
(3.)  Select MORE OPTIONS
(4.)  Select SYSTEM TESTS



The following table below is a Dodge listing of all possible causes for the inoperative Remote Start System.   If any of the following conditions exist, the Remote Start System will not work. Use this information as a guide to the diagnosis of the Remote Start System.


*       - ABORT





*       - CRANK NO START






*       - HOOD AJAR








*       - INVALID KEY



*       - MIL ON





*       - NOT ENABLED





*       - POWER LOSS


*       - RPM TOO HIGH (EXCEEDS 2500)



*       - VTA ALARMING


If all of the previous items checked OK, and the remote starting system will not operate, refer to the REMOTE START POOR PERFORMANCE diagnostic procedure.   There may be possible antenna related issues.

What does the term FOB, KEYFOB or FOBIK mean?

Q: Out of curiosity... I've always wondered what FOB or FOBIK stands for?
A: KEY FOB is usually a decorative or "trick item" stuck on a key ring.

With the advent of automotive electronics, the key fob term took on the meaning of the RKE (Remote Keyless Entry) device, you know, the little thingy that you hit to unlock the car door or open up the trunk.

Now a FOBIK means a FOB or RKE device with an (I)ntegrated (K)ey.

The integrated key will allow someone to lock valuables in the glove box and turn the RKE into a valet key so a parking attendant can park the car and you can keep your loaded .45 Semi-Auto in the glove box safely locked away.

Here is a link with lots of historical info on FOB's....  http://en.wikipedia.org/wiki/Key_fob

FOBIK (Key Fob) Repair and erratic operations


Some Challenger owners have complained about their key fobs mysteriously unlocking their trunks or rolling down their windows.
A possible fix is described is described below:

The FOBIK has a rubber mat with the button graphics on it.

If you open your FOBIK, the bottom side of the rubber mat has metal discs called "Snap Domes". The snap domes are what give each button that snap feel when you press it. Each of these snap domes are made of stainless steel, coated in a black carbon paint to give them extra conductivity.

When you press the button, the snap dome completes the circuit for that button and the FOBIK transmits.

An issue here is that sometimes a small piece of the carbon coating can break away from the stainless steel and get trapped under the snap dome. Even a very, very small piece of this is enough to create this problem.  Because the carbon material is very conductive, and it is trapped beneath the snap dome, it can complete the circuit very easily and make the FOBIK transmit.

Depending on which button this happens to, this can create a variety of issues. If this phenomenon occurs beneath most buttons, the outcome is very predictable but is most annoying when it happens beneath the Unlock button. That can randomly unlock the car, but also can make your windows roll down. Not good if it's raining out.

The fix is very simple. Just open up the FOBIK, and use a Q-tip and a small amount of isopropyl (rubbing) alcohol carefully wipe both the PCB where the snap domes make contact and the underside of the snap domes.  Dry/wipe off any excess.

Remove any and all loose black residue.  Once gone, this intermittent or erratic problem should go away as well.

Button Protection?  For those of you who have to carry your FOBIK in your pocket and bend over a lot or move around a lot to where the keys push on the buttons, you can use two wraps of Scotch #88 electrical tape around the center of the FOBIK to give your trunk key a bit more protection from inadvertent presses.  The extra layers of electrical tape will prevent keys on the key ring from easily pressing the buttons on the FOBIK but yet if you need to press them, you will only need to exert a little more force in pressing them to active the function.


SEE ALSO: Tip:111 Key FOB? Battery replacement? Dead FOBIK?
Tip:49  Key FOB? Battery replacement? Dead FOBIK?

Push Button Start Overlay Trim




This vendor provides a variety of different start button overlays and can do custom work if you have a special logo you want to put on your "Start Button"!



KeylessGo and Keeloq Encryption/Cipher


Remote Keyless Entry System Security

Related modules are WIN (Wireless Ignition Module) and PEM (Passive Entry Module).  Both of these modules are used in the keyless go system and use Keeloq block cipher.
is a proprietary hardware-dedicated NLFSR-based block cipher. The uni-directional command transfer protocol was designed by Frederick Bruwer PhD, CEO at Nanoteq (Pty) Ltd and the cryptographic algorithm was created by Professor Gideon Kuhn with the silicon implementation by Willem Smit, PhD at Nanoteq Pty Ltd (South Africa) in the mid 80's and sold to Microchip Technology Inc in 1995 for $10 million. It's used in "code hopping" encoders and decoders such as NTQ105/106/115/125D/129D and HCS101/2XX/3XX/4XX/5XX.

KeeLoq is used in the majority of remote keyless entry systems by such companies as Chrysler, Daewoo, Fiat, GM, Honda, Toyota, Volvo, Volkswagen Group, Clifford, Shurlok, Jaguar, etc. More reference material on Keeloq is available online as well as on Wikipedia; http://en.wikipedia.org/wiki/KeeLoq

How hard is it to steal a Challenger with Keeloq block cipher?

KeeLoq is a cipher used in several car anti-theft mechanisms distributed by Microchip Technology Inc. It may protect your car if you own a Chrysler, Daewoo, Fiat, General Motors, Honda, Toyota, Volvo, Volkswagen, or Jaguar. The cipher is included in the remote control device that opens and locks your car and that activates the anti-theft mechanisms.

Each device has a unique key that takes 18 billion billion values. With 100 personal computers, it would take several decades to find such a key.

Therefore KeeLoq was widely believed to be secure. In our research we have found a method to identify the key in less than a day. The attack requires access for about 1 hour to the remote control (for example, while it is stored in your pocket). Once we have found the key, we can deactivate the alarm and drive away with your car.

This research is the joint work between 3 research groups: the computer science department of the Technion, Israel, the research group COSIC of the Katholieke Universiteit Leuven, Belgium, and the math department of the Hebrew University, Israel.

Note: The way the researchers were able to break the cipher in less than a day (typically about 4-5 hours), and if you are extremely lucky, in about an hour but that is with multiple computers and very sophisticated custom written software. Note the required sophisticated radio hardware and software as well, in addition to the custom hacking code.

Note: That they are not "attacking" the vehicle, they are attacking the FOBIK remote! You have to be within 30 ft and be pretty close to the FOBIK when attacking it. What you are looking for is the special 4 digit PIN key to derive the unique master key code.

If you are afraid that some highly intelligent, very computer savvy person is going to steal your Challenger by doing this, lock or secure the FOBIK when it is not in use (within the vehicle) in a metal box or wrapped in Alum. foil to prevent access via radio frequency (433mhz).

Thieves with this level of expertise don't go after any old cars, they go after the high end Mercedes, BMW's, Lexus, etc., the very very expensive luxury cars. A local jackleg is not going to be able to do this.

Reference; How to steal Cars - A practical attack on KEELOQ

KeyLess Go Ignition/Pushbutton functions

No need to try to play around to figure things out here.... Your owner's manual clearly describes Keyless Go operations.

If you have Keyless Go, you have EVIC (Electronic Vehicle Information Center) as well...

Keyless Go ACC/IGN (ON) Display

2009 Challenger R/T owner's manual (pg. 175)
2009 Challenger SRT owner's manual (pg. 175)

2010 Challenger R/T owner's manual (pg. 181)

2010 Challenger SRT owner's manual (pg. 181)

Keyless Go Display — If Equipped (EVIC)

When the ENGINE START/STOP button is pressed to change ignition switch positions, the Keyless Go icon momentarily appears in the EVIC display showing the new ignition switch position.



To change the ignition switch positions without starting the vehicle (do not step on brake) and use the accessories follow these steps.

          • Starting with the ignition switch in the OFF position:

          • Press the ENGINE START/STOP button once to change the ignition switch to the ACC position (EVIC displays “IGNITION MODE ACCESSORY”),

          • Press the ENGINE START/STOP button a second time to change the ignition switch to the ON/RUN position (EVIC displays “IGNITION MODE RUN”),

          • Press the ENGINE START/STOP button a third time to return the ignition switch to the OFF position (EVIC displays “IGNITION MODE OFF”).

Under certain conditions, the display may be superseded by another display of higher priority.  But when the ignition switch position is changed, the display always re-appears.

Now, if you not have a digital copy of your owner's manual on your computer, you can easily and quickly download a standard Adobe .PDF file of your model year at;


Save this document in your MyDocuments folder and then create a shortcut to it from your desktop. You can have this manual up in less than two mouse clicks, and you USE the SEARCH window to locate anything you are looking for in this large document very fast.

For more specific information on the Keyless Go system and possible battery discharge see Tip:142 Keyless Go Button (Tech Tip & Operation Info)

FOBIK "TRAPPED" IN WIN (Wireless Ignition Node)

The following descriptions will describe how the FOBIK when used as a "key" may become stuck where it cannot be removed. 
Some of this by design is for safety purposes and others may be due to dead battery state.


The key removal inhibit solenoid internal to the WIN prevents the FOB with Integrated Key (FOBIK) from being rotated in the ignition switch to the LOCK position for all vehicles with an automatic transmission unless the transmission shift lever is in the PARK position.

Automatic or Manual Transmission:

The WIN module monitors a hard wired input from a switch integral to the automatic “transmission shifter module” to control this feature.
The key removal inhibit solenoid is electronically disabled internally by the WIN on vehicles with a “manual transmission”.

FOBIK TRAPPED IN WIN (Wireless Ignition Node)

The FOB with Integrated Key (FOBIK) cannot be rotated to the LOCK position, allowing it to be removed from the ignition switch also referred to as Wireless Ignition Node (WIN).

The automatic transmission is shifted mechanically through a cable from the gearshift lever mechanism to the transmission or transaxle valve body. A gated park switch is physically located on and integral to the gearshift lever mechanism and is hard wired directly to the WIN.

The gated park switch is a simple plunger-like actuated open or closed contact switch that could be considered redundant to the Transmission Range Sensor (TRS) except that it monitors the position selected with the gearshift lever, while the TRS monitors the position or gear of the transmission that is actually engaged. A damaged or improperly adjusted gearshift cable could result in a different gear being engaged than that which is selected.

The WIN uses the gated park switch input to control an internal key lock solenoid, which controls whether the FOBIK can be rotated to the LOCK position. When the gearshift lever is not in the PARK position, the gated park switch is a closed circuit, the key lock solenoid is energized and the FOBIK cannot be rotated to the LOCK position for removal.

If your vehicle has a completely dead battery, and you used the valet key to get inside the vehicle and note that nothing is working, in placing the FOBIK in the WIN and trying to see if you can “start” the engine (nothing happens on dead battery) you may find that the FOBIK has now become "trapped" in the WIN and cannot be removed.

By trying to force the FOBIK out with brute force will only damage the WIN module and it will need to be subsequently replaced. 

You will have to CHARGE the vehicles battery up enough to see activity on the EVIC at which time you should be able to get the "solenoid pin" to activate and release the FOBIK from the WIN.


Custom FOBIK covers

For those interested in protecting those expensive electronic keys, there is a vendor that provides a good selection of different colored slip-on RKE covers.
IF your FOBIK is going to be subjected to a number of different conditions, wet fingers, dirty hands, etc, this looks like a good way to protect that key!










Keyless Go Button (Tech Tip & Operation Info)

Read the following for Keyless Go Start operations, troubleshooting and programming tips.


If equipped, the Challenger is shipped with a Keyless GO Button in the vehicle’s glove box. This feature, if the customer chooses to have it installed, will allow the driver to operate the ignition switch without the need to physically install the FOBIK into the ignition switch. The GO Button is packaged in a plastic bag with an instruction card. The instruction card explains how to operate the GO Button once it has been installed to the ignition switch.

The instruction card should be reviewed with the customer during vehicle delivery and then placed into the owner’s manual for future reference. With the GO Button installed into the ignition switch and the FOBIK in the vehicle interior, the GO Button (like the FOBIK it substitutes) will allow one or more of the following ignition switch modes. With the brake pedal not depressed (foot off brake pedal) the following ignition switch modes can occur: accessory, run, and off.

With the brake pedal depressed the following ignition switch modes can occur: start-run, and off.




1. Remove the GO Button package from the vehicle glove box.

2. Position the lettering on the GO Button so that it is horizontal and readable.
   The GO Button has the words “ENGINE START / STOP” on the face of the button.

3. Gently insert the GO Button into the ignition switch receptacle by pressing on the center of the button.

4. If the button slips in easily, then it has been installed correctly.

5. Press firmly on the center of the GO Button to seat the button into the ignition switch receptacle.
   The Keyless GO Button can be removed at any time. Remove the GO Button if the use of the FOBIK is desired to operate
   the ignition switch (instead of the GO Button).


1. The GO Button may be removed using the valet key from the FOBIK as a thin tool.

2. Insert the metal part of the valet key under the chrome bezel at the 6 o’clock position.
3. Gently pry the GO Button from the ignition switch.


With the driver’s foot OFF of the brake pedal, transmission selector in the PARK position and the FOBIK must be in the passenger compartment of the vehicle:

1. Press the ENGINE START/STOP button once to activate the ACCESSORY mode which will allow operation of the radio, wipers, and windows.

2. Press the ENGINE START/STOP button a second time to activate the RUN mode which will allow the operation of the heating/air conditioning (HVAC) controls, and Instrument Cluster.

3. Press the ENGINE START/STOP button a third time to activate the OFF mode

With the driver’s foot ON the brake pedal (brake pedal depressed), transmission selector in the PARK (or NEUTRAL) position, and the FOBIK must be in the passenger compartment of the vehicle:


1. Press the ENGINE START/STOP button once to activate the START-RUN mode. The engine will start.

2. Press the ENGINE START/STOP button a second time to activate the OFF mode. The engine will stop.



To start the engine, the transmission must be in PARK or NEUTRAL, and the FOBIK must be in the passenger compartment of the vehicle. Press and hold the brake pedal while pressing the ENGINE START/STOP button once. The system (TIP START feature) takes over and attempts to start the vehicle engine.

If the vehicle engine fails to start, the starter will disengage automatically after ten (10) seconds.

If you wish to stop the cranking of the engine prior to the engine starting (within ten seconds) then press the ENGINE START/STOP button again.


Programming  and troubleshooting new FOBIK's, and WIN and PEM modules

Troubleshooting:  One FOBIK works with the start button but my other FOBIK says "Key not detected" and will not start the vehicle.  It will however start the vehicle with the FOBIK used as a key directly into the WIN module.


If it starts with both FOBIK's in the slot (WIN) and is used as a standard key, but only starts with one using the push button and "errors out" on the other I will would safely bet that one FOBIK is has a problem.  Now, if this is a NEW FOBIK that they (dealer tech) just "programmed" I would bet that they did not "associate" the new/non working FOBIK with the PEM (Personal Entry Module).


If it "push button start" works with one FOBIK, then the PEM is usually good.


If you have both FOBIKS in the vehicle during testing, this can be confusing as to which one is bad or has a problem.  Use aluminum foil to completely wrap a FOBIK (transponder) to shield it from the low frequency signal detection of the PEM module.  This method can be used to independently test each FOBIK for proper operation.

Dealer tech programming:

There is one extra step on the Keyless Entry (push button start) cars that a lot of techs do not realize HAS got to be done when replacing/programming FOBIK's.

After it is programmed to the WIN module,  that same FOBIK ALSO has to be "associated" to the PEM as a separate step by going into the PEM with the Scantool.  Forgetting this will give "not found" errors when using the push button and this FOBIK as it has not be "mated" to the PEM module.

NOTE: The Keyless Go (push button start) system actually can utilize 3 different antenna systems on two different control modules (WIN and PEM) to "validate" a "start command" message to be sent via CANBUS  to the PCM to initiate an engine "start" sequence.


FOBIK and PEM Radio Frequencies



Challenger Keyless Go FOBIK (FOB with [I]ntegrated [K]ey)

The main role of the Passive Entry Module (PEM) system as it relates to the passive entry (PE) Keyless Go (KG) feature is to own the PE portion of the feature when equipped.
In vehicles that don't have PE, the PEM is still required for the KG system. When the KG button is pushed, the Wireless Ignition Node (WIN) queries the PEM for FOBIK authentication.
When a stored FOBIK(s) is found inside the vehicle, the PEM will send a valid response back to the WIN.

The PEM is located behind the glove box

­Keyless Go

When the Keyless Go (KG) button is pressed on the Wireless Ignition Node (WIN), and the WIN requires authentication, the WIN sends a CAN message carrying a 64 bit challenge
value from the WIN to the Passive Entry Module (PEM).

The PEM determines the location of authenticated FOBIK(s) presently available by transmitting on 20 KHz LF and listening on 433 MHZ UHF for the FOBIK(s). The PEM sends the 64 bit challenge value sent on CAN BUS from the WIN on LF to an authenticated FOBIK located inside the vehicle.

The FOBIK manipulates the value and returns a 64 bit response to the PEM on 433 MHz UHF. The PEM uses this value to return a result to the WIN on CAN BUS. If a valid 64 bit response
value is returned, the PEM passes the response value to the WIN so that it can complete the secure handshake. If no FOBIK response, invalid FOBIK response or no FOBIK is available inside the vehicle, the PEM responds with a message with a value that is not a valid response value, so that the WIN always gets a response to the challenge and can act accordingly.

If the WIN determines that the response value is valid, then the WIN knows there is a valid FOBIK in the interior of the vehicle and proceeds with the synthesized ignition position logic.

The WIN should always receive a PEM response to the WIN challenge. If the WIN receives a response that is not successful, the WIN shall generate a new challenge and start the
process over by sending again. The WIN shall retry the process twice. If after three attempts at challenging the FOBIK(s) a successful response is not obtained, the WIN sends the message that commands the EVIC to display the message "FOB NOT DETECTED" on the EVIC display.



Each time the START/STOP button is pressed, a signal is transmitted from the Wireless Ignition Node (WIN) over the Controlled Area Network (CAN) data bus to the Passive Entry Module (PEM), where the signal is then wirelessly transmitted to the FOB with Integrated Key (FOBIK). The signal is then sent back through the PEM over the CAN data bus and back to the WIN for authentication and location. After a valid FOBIK is detected inside the vehicle the ignition state can be changed.

The ignition system for the Keyless Go (KG)feature has three states, similar to a conventional ignition system. These ignition states are OFF, ACCESSORY, and ON. Each time the START/STOP button is pressed and released the ignition state changes to the next ignition state as follows, from OFF to ACCESSORY, from ACCESSORY to ON, and from ON back to OFF.

To start the engine, the transmission must be in park or neutral. From any ignition state, press the brake pedal and press and release the START/STOP button and the engine attempts to start. The starter will continues to crank until the engine starts. If the engine fails to start, the starter will disengages automatically in 10 seconds. If you wish to stop the cranking of the engine before the engine starts, press and release the START/STOP button again.

To shut off the engine while the transmission is in PARK press and release the START/STOP button and the engine shuts off. To shut off the engine while the transmission is out of PARK
you must press and hold the START STOP button. The ignition state will be changes to the ACCESSORY state if the transmission is not in PARK and to the OFF state if the transmission
is in PARK motion.


The power lock system allows all of the doors and liftgate to be locked or unlocked electrically by operating a switch on either front door trim panel. The power lock system receives a non-switched battery current through a fuse in the Junction Block (JB), so that the power locks remain operational, regardless of the ignition switch position.

The instrument cluster locks the doors automatically when the vehicle speed exceeds 25.7 Km/h (15 mph), all doors are closed and the accelerator pedal is pressed. The rolling door lock feature can be disabled through the EVIC.

This vehicle also offers several customer programmable features, which allows the selection of several optional electronic features to suit individual preferences.

The power lock system for this vehicle can also be operated remotely using the Remote Keyless Entry (RKE) transmitters.


The central locking system controls powered operation of the door,liftgate locks and the illuminated entry system. Central locking includes the following features:

*       Automatic locking of the doors and liftgate when the vehicle speed exceeds approximately 25 km/h (15 mph).

*       Locking prevention with a door lock switch or the RKE transmitter, if the key is in the ignition switch and the driver's door is open.

*       Driver selectable unlocking mode: Unlocks only the driver's door or all doors and the liftgate, with one press of the RKE transmitter unlock button.
The driver's door cylinder can also be used to unlock the door. One turn of the cylinder will unlocks the driver's door, two turns within five seconds unlocks all doors.

*       Automatic illumination of the interior courtesy lamps when the vehicle is unlocked.

*       Locking all doors and the liftgate by pressing the lock button on the RKE transmitter, or by pressing a lock switch on one of the front doors.


The lock mechanisms are actuated by a reversible electric motor mounted within each door. The power lock motors are integral to the door latch units.

The power lock motors cannot be adjusted or repaired. If inoperative or damaged, the door latch unit must be replaced.



The Remote Keyless Entry (RKE) system locks and unlocks the doors and liftgate, turns on the interior lamps, and arms and disarms the Vehicle Theft Security System (if equipped). The RKE system operates on non-switched battery current through a fuse in the Integrated Power Module (IPM), so that the system remains operational regardless of the ignition switch position.

The RKE transmitters are also equipped with a Panic button. If the Panic button on the RKE transmitter is pressed, the horn will sounds and the exterior lights flashes on the vehicle for
about three minutes or until the Panic button is pressed a second time. A vehicle speed of approximately 25.7 kilometers-per-hour (15 miles-per-hour) also cancels the panic event.

The RKE system can also perform other functions on this vehicle. If the vehicle is equipped with the optional Vehicle Theft Security System (VTSS), the RKE transmitter arms the VTSS when
the Lock button is pressed and disarm the VTSS when the Unlock button is pressed.

The RKE system includes two transmitters when the vehicle is shipped from the factory, but the system can retain the vehicle access codes of up to a total of eight transmitters. The transmitter codes are retained in the RKE module memory, even if the battery disconnects. If an RKE transmitter is faulty or lost, new transmitter vehicle access codes can be programmed into the system using a scan tool.

This vehicle also offers several customer programmable features, which allows the selection of several optional electronic features to suit individual preferences. Customer programmable feature options affecting the RKE system include:

*       Remote Unlock Sequence - Allows the option of having only the driver side front door unlock when the RKE transmitter Unlock button is pressed the first time. The remaining doors unlock when the button is pressed a second time within five seconds of the first unlock press. Another option is having all doors and liftgate unlock upon the first pressing of the RKE transmitter Unlock button.

*       Sound Horn on Lock - Allows the option of having the horn sound a short chirp as an audible verification that the RKE system received a valid Lock request from the RKE transmitter or having no audible verification.

*       Flash Lights with Lock and Unlock - Allows the option of having the park lamps flash as an optical verification that the RKE system received a valid Lock request or Unlock request from the RKE transmitter or having no optical verification.

*       Programming Additional Transmitters - Allows up to a total of eight transmitter vehicle access codes to be stored in the receiver memory.

Certain functions and features of the RKE system rely upon resources shared with other electronic modules in the vehicle over the CAN data bus network. For diagnosis of these electronic modules or of the data bus network, the use of a scan tool and the appropriate diagnostic information are required.




The remote start antenna is located on the passenger side above and to the left of glove box.
The antenna interfaces with the Wireless Ignition Module (WIN) through a coaxial electrical cable and electrical connector. The antenna helps to amplify the signal for the Remote Keyless Entry (RKE) key fob.

Remote Start Operating Conditions


In order to operate remote start, the following conditions must be met:

*       Key fob sequence must be operated within a 100 meter range of the vehicle.

*       The vehicle must be in Park.

*       Key is not in the ignition.

*       The hazard switch off.

*       Vehicle Theft Alarm or Panic is not alarming.

*       Doors and hood must be closed.

*       The battery voltage is normal (11 to 15 volts).

Remote Start Shut Down/Deactivate Conditions

Engine will NOT start or will shut down/deactivate during any of the following conditions:

*       Key in Ignition.

*       Doors or hood are opened before remote unlock.

*       Hazard Switch depressed.

*       Panic or theft alarm active.

*       Brake applied.

*       A prior remote start cranked the engine , but failed to start the engine.

*       Battery voltage NOT in the normal range.

*       High (run away) or Low Idle (stall) RPM.

*       MIL Active.

*       High Engine Coolant Temperature.

*       Low Engine Oil Pressure.

Initiate Remote Start

To Remote Start the vehicle:


Press remote button on the Key Fob twice within 5 seconds.



Engine will run for 15 minutes after a remote start is initiated. After 15 minutes, the engine will shut off.
The system allows for only two sequential remote starts without a key ignition cycle.



Unlock vehicle with Key Fob to enter the vehicle.



Put key in ignition, turn key to run position to exit remote start and enter a normal start without engine shut off.


Identification that Remote Start is Activated

To identify that Remote Start has been activated the following will occur:

*       Horn will sound and lights will flash to acknowledge a start command was received.

*       Park Lamps will turn on to indicate that the engine is running in remote start mode.


Terminate Remote Start

To terminate Remote Start, press Remote Start button on the Key Fob once.


In order to avoid inadvertent shut downs, the one-time press to shut down the vehicle
will be disabled for two seconds after receipt of a valid remote start request.



Emergency or Valet key use and VTSS

The emergency key allows for entry into the vehicle should the battery in the vehicle or the Key Fob go dead.

The emergency key is also for locking the glove box. You can keep the emergency key with you when valet



Entering a vehicle using the emergency key with the theft alarm armed, will result in the alarm sounding.

Insert the Key Fob (even if the Key Fob battery is dead) into the ignition switch to disarm theft alarm.


To remove the emergency key, slide the mechanical latch at the top of the Key Fob sideways with your thumb
and then pull the key out with your other hand.




You can insert the double-sided emergency key into the lock cylinders with either side up.




The driver’s door key cylinder and the trunk button on the RKE transmitter cannot arm or disarm the Vehicle

Security Alarm.


The Vehicle Security Alarm remains armed during trunk entry. Pressing the TRUNK button will not disarm the

Vehicle Security Alarm. If someone enters the vehicle through the trunk, and opens any door, the alarm will sound.


When the Vehicle Security Alarm is armed, the interior power door lock switches will not unlock the doors.


New "Passive Entry" addition to Remote Keyless Entry (RKE) features for 2011




The Passive Entry system is an enhancement to the vehicle’s Remote Keyless Entry (RKE) system and a feature of Keyless Enter-N-Go. This feature allows you to lock and unlock the vehicle’s door(s) without having to press the RKE transmitter lock or unlock buttons.



Passive Entry may be programmed ON/OFF, refer to “Uconnect Touch™ Settings” in “Understanding Your Instrument Panel” for further information.


If a passive entry door handle has not been used for 72 hours, the passive entry feature for the handle may time out. Pulling the deactivated front door handle will reactivate the door handle’s passive entry feature.


If wearing gloves on your hands, or if it has been raining on the passive entry door handle, the unlock sensitivity can be affected, resulting in a slower response time.


If you unlock the doors using the passive entry door handles, but do NOT pull the handle, the doors will automatically lock after 60 seconds.


To Unlock From The Driver’s Side:

With a valid Passive Entry RKE transmitter within 5 ft. (1.5 m) of the driver’s side of the vehicle, grab the front driver door handle to unlock the driver’s door automatically.
The interior door panel lock knob will raise when the door is unlocked.



Outside Door Handle Unlock/Lock Button



If “Unlock All Doors 1st Press” is programmed all doors will unlock when you grab hold of the front driver’s door handle. To select between “Unlock Driver Door 1st Press” and “Unlock All Doors 1st Press”, refer to “Uconnect Touch™ Settings” in “Understanding Your Instrument Panel” for further information.



To Unlock From The Passenger Side:

With a valid Passive Entry RKE transmitter within 5 ft (1.5 m) of the passenger side of the vehicle, grab the front passenger door handle to unlock both doors automatically. The interior door panel lock knob will raise when the door is unlocked.


Both doors will unlock when the front passenger door handle is grabbed regardless of the driver’s door unlock preference setting (“Unlock Driver Door 1st Press” or “Unlock All Doors 1st Press”).


Preventing Inadvertent Locking Of Passive Entry RKE Transmitter In Vehicle

To minimize the possibility of unintentionally locking a Passive Entry RKE transmitter inside your vehicle, the Passive Entry system is equipped with an automatic door unlock feature which will function if there is no Key Fob present in the ignition.


If one of the vehicle doors is open and the door panel switch is used to lock the vehicle, once all open doors have been closed, the vehicle checks the inside and outside of the vehicle for any valid Passive Entry RKE transmitters. If one of the vehicle’s Passive Entry RKE transmitters is detected inside the vehicle, and no other valid Passive Entry RKE transmitters is detected outside the vehicle, the Passive Entry System automatically unlocks all vehicle doors and chirps the horn three times (on the third attempt ALL doors will lock and the Passive Entry RKE transmitter can be locked in the vehicle).


To Enter The Trunk

With a valid Passive Entry RKE transmitter within 3 ft (1.0 m) of the deck lid, press the button on the located on the center of the light bar which is located on the deck lid above the license plate.


Trunk Passive Entry.JPG




If you inadvertently leave your vehicle’s Passive Entry RKE transmitter in the trunk and try to close the deck lid, the deck lid will automatically unlatch, unless another one of the vehicle’s Passive Entry RKE transmitters is outside the vehicle and within 3 ft (1.0 m) of the deck lid.


To Lock The Vehicle’s Doors

With one of the vehicle’s Passive Entry RKE transmitters within 5 ft (1.5 m) of the driver or passenger front door handle, press the door handle LOCK button to lock both doors.


Passive Entry Door Handle.JPG




After pressing the door handle LOCK button, you have two seconds before you can lock or unlock the doors, using either passive entry door handle.

The passive entry system will not operate if the RKE transmitter battery is dead. The vehicle doors can also be locked by using the RKE transmitter lock button or the lock button located on the vehicle’s interior door panel.


If the vehicle is equipped with Keyless Enter-N-Go (Passive Entry) and the EVIC is programmed to Unlock All Doors 1st Press, all doors will unlock no matter which Passive Entry equipped door handle is grasped. If Driver Door 1st Press is programmed, only the driver’s door will unlock when the driver’s door is grasped. With Passive Entry, if Driver Door 1st Press is programmed touching the handle more than once will only result in the driver’s door opening. If driver door first is selected, once the driver door is opened, the interior door lock/unlock switch can be used to unlock all doors (or use RKE transmitter).



There has been a TSB (Technical Service Bulletin) released 3/15/2011 for 2011 Dodge Challenger with Keyless Enter-N-Go (Passive Entry) that corrects a security problem with the system.


TSB released for 2011 Challenger





Decklid Can Be Opened Without The Key Fob Being In The Proximity Of The Vehicle


Tip:199 Dodge Channels Challenger Keyless Enter-N-Go Video Documentary

Note: if a link has been discontinued or is no longer available on YouTube.com you then can see if the video has been
upgraded as (for example) going to a HD or other video by using the "Search" feature on YouTube and looking for
keywords like, "Dodge Challenger Keyless Enter-N-Go", "Dodge Challenger Keyless Entry" or "Challenger Keyless Go", etc. 


2012 Dodge Challenger Keyless Enter-N-Go system

2013 Dodge Challenger Keyless Enter-N-Go System


Once is all you need to press the START button to kill the engine.  Many owners forget this and press the START button
to kill the engine more than one time and can inadvertently place the START/STOP switch in the IGNITION ON position, this
will run the battery down if left on unintentionally.

So, look at the instrument cluster to see IGNITION state upon leaving vehicle, especially if you hear a CHIME sound when opening the door to exit.


Is it possible to add the KeyLess GO System to an R/T?

Normally this is NOT a dealer installed "option" as it is time consuming, and a tad expensive as you are going to have to purchase a lot of equipment that comes with the system to have it fully functional.  Most have absolutely no idea what is involved, and frankly this, although possible, is quite involved.


For those who have a very knowledgeable Dodge Service Tech, he will recognize and know that can and cannot be done but some hardware and software need to be installed before you can have a working system.  The link below details all the ins and outs of doing this KEYLESS-GO installation.


To detail this, go to this link below for more information;  http://www.sequentialtaillights.com/dodge/Add_Keyless_GO.htm


FOBIK (Key Fob) disassembly, battery change.

There may come a time where you will need to change FOBIK battery or disassembly the unit for cleaning or troubleshooting. 
Here is a good link to assist you with this task.



Tip 209
Vehicle Theft Security System (VTSS) will not reset when activated?


y wife went in the garage to grab some stuff inside the car, she opened the door with windows down and alarm sounded.
 She didnt have the FOB with her.  Then i grabbed the FOB and pressed every button on there from unlock, lock ,remotely
 starting the car x2 , panic ...  Nothing was working.  What button do you press because i am reading the manual and it says
 to use the key and put it in the ignition to turn off the alarm but i would like to turn off the alarm from a distance .

Orangepearlrtsteve writes:

            I tried what you described, and my alarm shut off when I pressed the Unlock Button on the key FOB.
            The Owner's Instruction Manual states below;

Vehicles Equipped With Keyless Enter-N-Go
Either press the UNLOCK button on the RKE transmitter,
pull on the front driver or passenger door handle (refer to “Keyless Enter-N-Go”
in “Things To Know Before Starting Your Vehicle” for further information) with a valid key fob in range, -or- press the Keyless Enter-N-Go
Start/Stop button (requires at least one valid Key Fob in the vehicle), or insert a valid Key Fob into the ignition switch (if the Start/Stop
button is removed) and rotate it to the ON/RUN position.

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This Web page created 12/17/10
Last updated; 09/28/2013 M.W.Davis

email: Webmaster@sequentialtaillights.com
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