Invalidate All: Notes

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

This procedure will erase all keyless entry transmitters from memory.

Install a scan tool.
Turn ON the ignition with the engine OFF.
With the scan tool, select Body.
Select Remote Control Door Lock Receiver (RCDLR).
Select Module Setup.
Select Program Key Fobs.
Select Invalidate All.
Follow the scan tool on screen instructions.