Tools Required

J 25070  Heat Gun

Important:  Do not damage the painted surfaces while using the heat gun.

1. Apply heat to the cylinder area using J 25070 
2. Hold the shutter door open with a paper clip or similar item and force air into the cylinder using compressed air and a blow gun attachment.
3. While holding the shutter door open inject a small amount of multi-purpose lubricant GM P/N 12346241 or equivalent.
4. Work the key into the cylinder several times and wipe any excess lubricant residue from the key.