2000 Impala Keyless entry reprogramming?

[rdb7601]

I recently replaced the battery in my keyless entry remote and it no longer works. Does anyone know the procedure to reprogram it?

[spotco2]

Transmitter Synchronization

Important
Loss of transmitter synchronization will occur when the following conditions are present:

The batteries on the keyless entry transmitter have been replaced.
A keyless entry transmitter has been activated many times when out of range of the vehicle's remote control door lock receiver.

In order to resynchronize a transmitter, press and hold the transmitter LOCK and UNLOCK buttons simultaneously for at least 7 seconds. The horn will sound when the resynchronization is successful.


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Document ID# 566058
2000 Chevrolet/Geo Impala


Transmitter Programming
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 may possibly be programmed to more than 1 remote control door lock receiver.


The following procedure describes how to program the remote control door lock transmitters to the remote control door lock receiver using the Tech 2®.

Perform the following steps:

Connect the scan tool to the following components:
An applicable power source
The vehicle data link connector (DLC)
Turn the ignition ON.
At the application menu screen, select F0 (body control module).
At the body control module screen, select F2 (special functions).
At the special functions menu screen, select F3 (program key fobs).
Follow the directions on the scan tool display in order to program the transmitters.
Press EXIT repeatedly until you view the application menu screen.
Disconnect the scan tool from the following components:
The accessory power port
The vehicle DLC
Validate that all the transmitters that were programmed operate properly.