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:

Front Seat Belt Anchor Plate Tensioner Replacement
Front Seat Belt Anchor Plate Tensioner Replacement Callout Component Name Warning: Refer to SIR Warning. Warning: In order to prevent accidental deployment and the risk of personal injury, do not dispose of a ...

Front Camber Adjustment
Note: DO NOT grind the front strut bores for the bolts to allow adjustment of the front camber. There are service bolts available to allow the front camber to be adjusted, if needed. If the front camber is out of specifications, perform the following: Remove the f ...

Battery Disconnect Warning
Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in c ...