GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 264911  Size: SH
  1. Insert a small coin between the 2 halves of the transmitter case in the slot located near the key ring.
  2. Twist the coin in order to open the case.
  3. Remove the cover while being careful not to damage the seal.
  4. Remove the battery from the transmitter.

Installation Procedure


    Object Number: 305032  Size: SH
  1. Install the new battery (CR 2450 or equivalent) (2) with the positive (+) side facing up.
  2. Inspect that the seal is properly positioned.
  3. Snap the 2 halves together (1, 3).
  4. Synchronize the transmitter to the receiver. Refer to Transmitter Synchronization .