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:

Replacing Safety Belt System Parts after a Crash
Warning A crash can damage the safety belt system in the vehicle. A damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the safety belt systems are working properly after a crash, have them inspected ...

Rear Seat Back Cushion Removal and Installation (40%)
Rear Seat Back Cushion Removal and Installation Callout Component Name Preliminary Procedure Remove the rear seat cushion. Refer to Rear Seat Cushion Removal and Installation. Remove the rear seat back cushion bolster. Re ...

Transmission Rear Mount Bracket Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front suspension skid plate, if equipped. Refer to Drivetrain and Front Suspension Frame Skid Plate Replacement. Using a suitable jack stand, support the rear of the ...