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:

Remote Vehicle Start
If equipped, this feature allows the engine to be started from outside the vehicle. (Remote Vehicle Start): This button will be on the RKE transmitter if the vehicle has remote start. The climate control system will use the previous settings during a remote start. The rear defog may come on d ...

Rear Compartment Courtesy Lamp Replacement (Sedan)
Rear Compartment Courtesy Lamp Replacement Callout Component Name 1 Rear Compartment Courtesy Lamp Assembly Procedure Use the appropriate trim tool in order to release the lamp assembly from the rear quarter ...

Engine Control Module Replacement
Engine Control Module Replacement Callout Component Name Note: If the ECM is to be replaced, the ECM must be RESET (prepared for removal) prior to removal from the vehicle. Failing to reset the ECM will result in the ...