Method 2 - Scan Tool Required
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Install a scan tool.
- Turn the ignition ON, with the engine OFF.
- Use the scan tool in order to access the Lift Gate Module (LGM) Special Function: Program Key Fobs menu.
- Follow the directions on the scan tool in order to program the transmitters.
- Operate the transmitter functions in order to verify correct system operation.