GM Service Manual Online
For 1990-2009 cars only

Cause

Action

The shaft assembly is damaged.

Replace the shaft as needed.

The shear bolts are damaged.

Replace the shear bolts.

The housing assembly is damaged.

Replace the housing assembly.

The auto trans shift lock control system is damaged.

Replace the auto trans shift lock control as needed.

The ignition switch assembly is damaged.

Replace the ignition switch assembly.

The park lock cable is not adjusted properly.

Adjust the park lock cable.

The shift lever is not in the P position.

Place the gear shift in the P position.

The key is incorrect, bent, or twisted.

Replace the key.