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:

Vehicle Personalization
Personalization Menu (Radio without Touchscreen) Use the audio system controls to access the personalization menus for customizing vehicle features. The following are all possible personalization features. Depending on the vehicle, some may not be available. CONFIG (Configur ...

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 insp ...

Brake Pipe and Hose Inspection
Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Visually inspect all of the brake pipes for the following conditions: Kinks, incorrect routing, missing or damaged retainers Leaking fittin ...