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:

Additional Factors Affecting System Operation
Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Safety Belts” and “Child Restraints” in the Index for additional information about the importance of pr ...

Hood Hold-Open Rod Replacement
Hood Hold-Open Rod Replacement Callout Component Name 1 Hood Hold-Open Rod Warning: When a hood hold open device is being removed or installed, provide alternate support to avoid the possibility of damage ...

Instrument Panel Center Molding Replacement (Without U58)
Instrument Panel Center Molding Replacement Callout Component Name 1 Instrument Panel Center Molding Assembly Procedure Use a flat bladed plastic trim tool in the shown locations, then rotate the trim tool 90 ...