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:

Roof Front Header Panel Replacement
Removal Procedure Warning: Refer to Approved Equipment for Collision Repair Warning. Note: The roof front header panel is made of Ultra High Strength Steel and should be replaced only at factory joints. Repairing or sectioning of this part is not recomme ...

Tire and Wheel Assembly Balancing - Off Vehicle
Warning: Failure to adhere to the following precautions before tire balancing can result in personal injury or damage to components: Clean away any dirt or deposits from the inside of the wheels. Remove any stones from the tread. Wear eye protection. Use coated weights on alum ...

Electronic Park Lock Description and Operation
If the vehicle is equipped with automatic transmission and a floor mounted console gear shift, it has an electronic park lock system (EPL). The EPL system purpose is to prevent the ignition key from being turned to the OFF position when the transmission is in any position other than PARK and t ...