Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 23 (REMOTE KEYLESS ENTRY SYSTEM)PROGRAMMINGTRANSMITTER PROGRAMMING
2002 Chevrolet Avalanche 2500, RWD
Transmitter Programming
2002 Chevrolet Avalanche 2500, RWDSECTION Transmitter Programming
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet Chevy Express, and 2001 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.
- Ground terminal No. 4 (Black wire) to terminal No. 8 (Black/White wire) of Data Link Connector (DLC). Press LOCK and UNLOCK buttons simultaneously on first transmitter to be programmed until locks cycle, about 10 seconds. Receiver will respond by locking/unlocking all doors.
- Press any button on next transmitter to be programmed within one minute. Receiver will again respond by locking/unlocking all doors.
- Repeat step 2 for each additional transmitter, up to 4. Remove ground jumper from DLC terminals No. 4 and 8. Transmitter operation can be verified by locking and unlocking doors.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.