GM Ignition Repair & Rekey

GM Ignition Switch

Repair & Rekey

GM ignition repair
GM ignitions mostly share a common design, and therefore fail in a predictable way

One of two reasons brought you to this article, either your GM ignition switch won’t turn or you need it re keyed. In this case the process for either is the same, the main difference is the switch that has failed will require more time to remove from the vehicle and will retain the same key-bitting.

Re-key GM Ignition Switch

The photo above shows a GM ignition switch (key code redacted) being re-keyed, the truck was stolen then recovered. The truck was recovered without keys, and the owner decided it was best to change the switch. The ignition key was changed so that the stolen keys couldn’t start the car.

Creative options

During this particular job, I gave the owner the option to re-key the doors but he decided to leave the doors as is. So for this particular GM vehicle I was able to change only specific ignition wafers within the ignition, and leave just enough of the ignition wafers the same.  My customer retained one key for the door and ignition after the ignition was changed. Some GM vehicles would not allow this to work, this one was a good candidate because I was able to change half of the key completely.

Repair GM Ignition Switch

I first disassemble the lock and clean it. I inspect it for damage, and leave damaged chambers in the lock empty if needed. I replace all springs and wafers in the lock with new parts and install a new retainer cap. I seat the retainer cap securely onto the switch and reinstall it. It is either worn wafers or a loose retainer cap that requires repair. I always replace the springs.


This retainer cap will be pressed into place depressing the springs, then permanently seated in place (key code redacted)