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:

Rear Seat Center Shoulder Belt Replacement (Hatchback)
Rear Seat Center Shoulder Belt Replacement Callout Component Name Preliminary Procedures Remove the rear seat cushion. Refer to Rear Seat Cushion Removal and Installation. Remove the rear seat back cushion. Refer to Rear ...

Supplemental Inflatable Restraint System Description and Operation
SIR System Overview The supplemental inflatable restraint (SIR) system supplements the protection offered by the seat belts. The SIR system contains an inflatable restraint sensing and diagnostic module (SDM), air bags, seat belt pretensioners (anchor and retractor), and impact sen ...

Parking Brake Indicator Switch Replacement
Removal Procedure Remove the front floor console. Refer to Front Floor Console Replacement. Ensure that the park brake lever is in the fully released position. Disconnect the electrical connector from the park brake warning indicator switch. Remove the park ...