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:

Off-Road Recovery
The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. Follow these tips: 1. Ease off the accelerator and then, if there is nothing in the way, steer the vehicle so that it straddles the edge of the pavement. 2. Turn the steering wheel about one-eight ...

Airbag Sensing and Diagnostic Module Replacement
Airbag Sensing and Diagnostic Module Replacement Callout Component Name Warning: Refer to SIR Warning. Warning: Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before apply ...

Transmission Fluid Level and Condition Check
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Remove the front suspension skid plate, if equipped. Refer to Drivetrain and Front Suspension Frame Skid Plate Replacement Place a basin underneath the vehicle. Clean away all ...