GM Service Manual Online
For 1990-2009 cars only

Cause

Action

The shaft system is damaged.

Replace the shaft assembly.

The housing assembly is damaged.

Replace the housing assembly.

The auto trans shift lock control system is damaged.

Repair or replace the auto trans shift lock control as required.

The key is incorrect, bent, or twisted.

Replace the key.

The park lock cable is not adjusted properly.

Adjust the park lock cable.