GM Service Manual Online
For 1990-2009 cars only

Problem

Action

The ignition switch is damaged.

  1. Inspect the ignition switch.
  2. Replace the ignition switch. Refer to Ignition Switch Replacement - On Vehicle .

The linkage is maladjusted.

  1. Inspect the shift linkage.
  2. Replace the components as needed. Refer to Electronic Column Lock Module - Disassemble - Off Vehicle or Electronic Column Lock Module - Assemble - Off Vehicle .

The lock cylinder is damaged.

Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .