Instrument Panel Compartment Door Lock Cylinder Coding

Fig 1: Removing Tumblers From Lock Cylinder

Courtesy of GENERAL MOTORS CORP.

Remove the glove compartment door lock. Refer to Instrument Panel Compartment Replacement .
Remove the tumblers from the lock cylinder by pulling with needle nose pliers.

Fig 2: Typical Lock Tumbler Identification Stamp

Courtesy of GENERAL MOTORS CORP.

Select the correct lock tumblers for the desired code by the number stamped on the tumbler.

Fig 3: Installing Lock Tumblers

Courtesy of GENERAL MOTORS CORP.

Install the lock tumblers, by applying downward pressure until locked into position.
To check the coding of the cylinder, insert the key. If the coding is correct, all tumblers except the retainer tumbler will be flush with the lock cylinder.