2003 Tahoe Keyless Entry Programming

I purchased a 2003 Tahoe from a local used car dealer but the keyless entry remotes did not work. they said all I had to do was hold down the lock and unlock button and it would program it self. Well after 4 trys it did not work anyone Know HOW?? Help Please!!

Thanks
azj

you need to get in your tahoe
put the key in the ignition
hold the unlock button down
with the unlock button held down turn the key to the on position then off then turn the key on and off
release the unlock button
The Locks shoul lock then unlock
Press the unlock and lock buttons on the remote at the same time and hold for a second
if you have done it right after 15 seconds the locks should lock then unlock
and your remote is programmed
after this turn the key to the on position to exit program mode

What the dealer described only works if you have the CORRECT remotes for the vehicle, and if they were actually programmed to the vehicle before.

If the remotes do not respond, then they need to be programmed from scratch.

Transmitter Programming
Important: 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.

There are 3 methods for programming transmitters, which are listed below as methods 1-3. Up to 4 transmitters may be programmed to the passenger door module (PDM). Each programmed transmitter is given a position of #1-#4 in the PDM memory.

Method 1 - No Tools Required, Program All Transmitters
Important: All transmitters which are to be recognized by the PDM must be programmed in a single programming sequence. When using this program method, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter.

The order in which the transmitters are programmed will determine its numbering position within the PDM memory. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number stamped on the transmitter case is for reference only; #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available.


Close all the vehicle doors.
Insert the ignition key into the ignition lock cylinder.
Press and hold the door unlock switch.
While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
Release the door unlock switch. The doors will lock and unlock to confirm the program mode.
Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.
Repeat the previous step to program up to 4 transmitters.
Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter programming mode.
Operate the transmitter functions in order to verify correct system operation.

Method 2 - Scan Tool Required, Program Individual Transmitter
Important: All transmitters which are to be recognized by the PDM must be programmed in a single programming sequence. When using this program method, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter.

The order in which the transmitters are programmed will determine its numbering position within the PDM memory. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number stamped on the transmitter case is for reference only; #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available.


Only use this option if you are certain which transmitter, #1-#4, is being replaced, or the new transmitter can be programmed into a previously unused position within the PDM memory.

Install a scan tool.
Turn the ignition ON, with the engine OFF.
Use the scan tool in order to access the passenger door module Special Function menu.
Select Program Individual Key Fob to program specific transmitters.
Follow the directions on the scan tool in order to program the transmitter or transmitters.
Operate the transmitter functions in order to verify correct system operation.

Method 3 - Scan Tool Required, Program All Transmitters
Important: All transmitters which are to be recognized by the PDM must be programmed in a single programming sequence. When using this program method, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter.

The order in which the transmitters are programmed will determine its numbering position within the PDM memory. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number stamped on the transmitter case is for reference only; #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available.


Install a scan tool.
Turn the ignition ON, with the engine OFF.
Use the scan tool in order to access the passenger door module Special Function menu.
Select Program All Key Fobs to clear the PDM memory.
Follow the directions on the scan tool in order to program the transmitters.
Operate the transmitter functions in order to verify correct system operation.