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:

Traction Control/ Electronic Stability Control
The Traction Control System (TCS) limits wheel spin. The system is on when the vehicle is started. The StabiliTrak system assists with directional control of the vehicle in difficult driving conditions. The system is on when the vehicle is started. To turn off traction control, press and re ...

Radio Rear Side Door Speaker Replacement
Radio Rear Side Door Speaker Replacement Callout Component Name Preliminary Procedure Remove the rear side door trim. Refer to Rear Side Door Trim Replacement. 1 Radio Rear Side Door Speaker Bol ...

Cylinder Head Replacement
Special Tools BO-38185 Hose Clamp Pliers EN-45059 Angle Meter For equivalent regional tools, refer to Special Tools. Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Relieve fuel system pressure. Re ...