Chevrolet Sonic Repair Manual: Immobilizer

Ignition Lock Cylinder Replacement

Removal Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the upper trim cover and the lower trim cover f ...

Immobilizer Description and Operation

The immobilizer system functions are provided by the body control module (BCM) and the engine control module (ECM), as well as any modules which store and report the environment identifier. When ...

Other materials:

Rear Compartment Lid Lock Cylinder Coding
The rear compartment lid lock cylinder uses 7 of the 7 cut positions. The tumbler positions are staggered from side to side, 4 on one side and 3 on the other, are not self-retaining, and are not snap in. Note: All lock cylinders for side milled keys have right and left tum ...

Front Bumper Fascia Center Support Bracket Replacement
Front Bumper Fascia Center Support Bracket Replacement Callout Component Name Preliminary Procedure Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement. 1 Front Bumper Fascia ...

Front Disc Brake Mounting and Hardware Inspection
Warning: Refer to Brake Dust Warning. Inspect the fluid level in the brake master cylinder reservoir. If the brake fluid level is midway between the maximum-full point and the minimum allowable level then no brake fluid needs to be removed from the reservoir before proceed ...