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:

When Should an Airbag Inflate?
This vehicle is equipped with airbags. See Airbag System. Airbags are designed to inflate if the impact exceeds the specific airbag system's deployment threshold. Deployment thresholds are used to predict how severe a crash is likely to be in time for the airbags to inflate and help restra ...

Rear Seat Back Cushion Panel Replacement
Rear Seat Back Cushion Panel Replacement Callout Component Name Preliminary Procedure Remove the rear seat back cushion. Refer to Rear Seat Back Cushion Removal and Installation Remove the rear seat head restraint guide. ...

Engine Oil and Oil Filter Replacement
Removal Procedure Open hood. Place a drain pan below the vehicle. Caution: To prevent damage to oil filter cap ensure proper tool is used. Do not use an open end wrench which may cause damage to filter cap. Using a 24mm socket or closed end wrench loosen ...