Is your fob a genuine GM OEM version or aftermarket? Many folks have reported problems with aftermarket versions as they often will not perform as they are advertised. Also, instructions accompanying these aftermarket types are often not correct for the target vehicle.
In any case, you can check for correct instructions available in the service manual or at a website like alldatadiy.com.
How are you doing it ?
Transmitter Programming
Important: All transmitters that are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode, all previously programmed transmitters will be erased upon receipt of the programming signal from the first transmitter.
Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. The order in which the transmitters are programmed is important. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. Use care to program the transmitters correctly.
The scan tool must stay connected until all of the transmitters are programmed.
Install a scan tool.
Turn ON the ignition with the engine OFF.
With the scan tool, select Body, go to Remote Function Actuation.
Select Special Functions.
Select Program Key Fobs.
Select the number of key fobs to be programmed.
Press and hold the LOCK and the UNLOCK buttons simultaneously on the first transmitter for approximately 15 seconds. The power locks should cycle to confirm programming of the first fob is complete.
If you are programming more than one transmitter, repeat the previous step to program up to 4 transmitters.
Remove the scan tool.
Exit the vehicle. Attempt to lock/unlock the doors to verify the programming.
Operate the transmitter functions in order to verify correct system operation.
DEALER !
SOURCE: remote keyless entry
“CUSTOMER LEARN” MODE
This feature is only available on domestic vehicles or those which have a U.S. country code designator. This procedure requires access to at least two valid Sentry Keys. If two valid Sentry Keys are not available, Sentry Key programming will require the use of a scan tool.
The steps required to program Sentry Keys with two valid Sentry Keys follows:
1.
Obtain the blank Sentry Key(s) that need to be programmed. Cut the keys to match the ignition lock cylinder mechanical key codes.
2.
Insert one of the two valid Sentry Keys into the ignition switch and turn the ignition switch to the ON position.
3.
After the ignition switch has been in the ON position for longer than three seconds, but no more than fifteen seconds, cycle the ignition switch back to the OFF position. Replace the first valid Sentry Key in the ignition lock cylinder with the second valid Sentry Key and turn the ignition switch back to the ON position. The second valid Sentry Key must be inserted within 15 seconds of removing the first valid Sentry key.
4.
About ten seconds after the completion of Step #3 , the indicator light will start to flash and a single audible chime tone will sound to indicate that the system has entered the "Customer Learn" programming mode.
5.
Within sixty seconds of entering the "Customer Learn" programming mode, turn the ignition switch to the OFF position, replace the valid Sentry Key with a blank Sentry Key transponder, and turn the ignition switch back to the ON position.
6.
About ten seconds after the completion of Step #5 , a single audible chime tone will sound and the indicator light will stop flashing and stay on solid for three seconds and then turn off to indicate that the blank Sentry Key has been successfully programmed. The SKREES will immediately exit the "Customer Learn" programming mode and the vehicle may be started using the newly programmed Sentry Key.
NOTE:
The Remote Keyless Entry (RKE) Transmitter will also be programmed during this procedure.
These steps must be completed in their entirety for each additional Sentry Key to be programmed. If any of the above steps are not completed in the given sequence, or within the allotted time, the SKREES will exit the "Customer Learn" programming mode and the programming will be unsuccessful. The SKREES will also automatically exit the "Customer Learn" programming mode if:
NOTE:
If you attempt to start the vehicle while in “Customer Learn” mode (LED flashing), the vehicle will behave as though an invalid key is being used (i.e. the engine will stall after two (2) seconds of running). No faults will be logged.
NOTE:
Once a Sentry Key has been programmed to a particular vehicle, it cannot be used on any other vehicle.
SOURCE: How do you program a 2002 Jeep Grand Cherokee FOB?
if you have an original working fob and your owner's manual,it will explain procedure,otherwise will have to go to dealer to be programmed
SOURCE: Need to reprogram key less entry
Keyless Entry Keypad FAQ Ford Explorer
The keypad can be operated with the factory set 5-digit entry code
You can use the keyless entry keypad to
Where the code can be found
Computer Module location
Programming a personal entry code
The factory set code cannot be reprogrammed but you can create your
own 5�digit personal entry code. When pressing the controls on the
keypad, press the middle of the controls to ensure a good activation.
Up to three personal entry codes may be programmed to the vehicle. To create your own personal entry code:
Tips:
Erasing personal code
All personal codes are now erased and only the factory set 5�digit code will work.
Anti-scan feature
If the wrong code has been entered 7 times (35 consecutive button
presses), the keypad will go into an anti-scan mode. This mode disables
the keypad for one minute and the keypad lamp will flash.
The anti-scan feature will turn off after
Unlocking and locking the doors, liftgate and liftgate window using keyless entry
Deactivating/activating autolock
Note: The autolock feature can be activated/deactivated independently of the autounlock feature.
Before following the activation or deactivation procedures, make
sure that the anti-theft system is not armed, ignition is in the 1
(OFF/LOCK)position, and all vehicle doors, liftgate and liftgate window
are closed.
*Keyless entry key pad procedure
The user should receive a horn chirp to indicate the
system has been disabled or a chirp followed by a honk to indicate the
system has been enabled.
Autounlock The autounlock feature will unlock all the doors
when: � the ignition is in the 3 (ON) position, all the doors are
closed, and the vehicle has been in motion at a speed greater than 12
mph (20 km/h); � the vehicle has then come to a stop and the ignition
is turned to the 1 (OFF/LOCK) or 2 (ACC) position; and � the driver
door is opened within 10 minutes of the ignition being transitioned to
the 1 (OFF/LOCK) or 2 (ACC) position.
Note: The doors will not autounlock if the vehicle has been electronically locked before the driver door is opened.
Deactivating/activating autounlock - Keyless entry key pad procedure
Your vehicle comes with the autounlock feature activated.
The user should receive a horn chirp to indicate the
system has been disabled or a chirp followed by a honk to indicate the
system has been enabled.
The keyless entry touch pad can use two codes. The factory code and one
personal code .
To program your own personal code, select a 5 digit code that doesn't use 5 digits in
sequence or the same button 5 times.
Enter your factory code
Within 5 seconds press the 1/2 button
Within 5 seconds of pressing the 1/2 button, enter your 5 digit personal code,
pressing each digit within 5 seconds of the previous digit.
You can now use either code to operate the keypad
Setting FOB to work with your vehicle
SOURCE: Bought a 91 Cadillac Deville and it has remote
sorry but the only way is to take it to the dealer
SOURCE: how do you program the remotes for keyless entry
Transmitter Programming
No Tools Required
In the event that a transmitter is lost, program the old and the new transmitters into the memory of the remote control door lock receiver. Up to 4 transmitters may be programmed.
Important
Once the keyless entry receiver enters the programming/diagnostic mode, the programming of the first transmitter erases all previous transmitter programming information. You must then program all of the transmitters.
Program only 1 vehicle remote control door lock receiver at a time. If you program multiple receivers simultaneously, the same transmitter could possibly be programmed to more than 1 remote control door lock receiver.
Perform the following steps:
Sit in the vehicle driver's seat.
Remove the ignition key from the ignition lock cylinder.
Close all of the vehicle's doors.
Remove the MALL PGM fuse from the fuse panel. Refer to Electronic Diagnosis in Body and Chassis.
Turn the ignition lock cylinder to the ACC position.
Turn the ignition lock cylinder OFF, then back to ACC within 1 second.
Open and then close any vehicle door. You will hear a chime when the remote control door lock receiver enters the programming/diagnostic mode. If you do not hear a chime, start again at step 1.
Important
After 7 seconds, you may hear a chime confirming successful synchronization. After approximately 14 seconds, you will hear a chime confirming successful programming.
Press and hold the transmitter LOCK and UNLOCK buttons simultaneously for 14 seconds.
Repeat step 8 in order to program each additional transmitter.
Remove the ignition key from the ignition lock cylinder.
Install the MALL PGM fuse back into the fuse panel. Refer to Electrical Diagnosis in Body and Chassis.
Validate that all the transmitters that were programmed operate properly. Refer to Keyless Entry System Operation
?€¢
Chime 1, 2, or 3 times.
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