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:

Special Tools
Illustration Tool Number/ Description CH 28662 J 28662 Brake Pedal Effort Gauge CH 29532 J 29532 Diaphragm Pressure Bleeder CH̴ ...

Engine Replacement (Automatic Transmission)
Special Tools J-45859 Wheel Drive Shaft Remover CH-807 Closure Plugs For equivalent regional tools, refer to Special Tools. Removal Procedure Remove the battery and battery tray. Refer to Battery Tray Replacement. Relieve the fuel system pressure. Refer to Fuel Pressur ...

New Vehicle Break-In
Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: Do not drive at any one constant speed, fast or slow, for the first 805 km (500 mi). Do not make full-throttle starts. Avoid downshifting t ...