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:

Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying General Motors. If NHTSA receives similar complaints, it may open an investig ...

Instrument Panel Center Air Outlet Replacement
Instrument Panel Center Air Outlet Replacement Callout Component Name Preliminary Procedure Remove the instrument panel center molding. Refer to Instrument Panel Center Molding Replacement. 1 In ...

Engine Front Cover with Oil Pump Replacement
Removal Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Set the engine to TDC. Refer to Camshaft Timing Chain Inspection. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove ...