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:

Reclining Seatbacks
Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked. To recline a manual seatback: 1. Lift the lever. If necessary, move the safety b ...

Tire and Wheel Balancing (Road Force Variation (RFV))
ALL wheel/tire assemblies must have a RFV within spec before being mounted on vehicle. Important: If a wheel/tire assembly is not within the RFV specification after match mounting, the tire must be returned to the tire manufacturer. DO NOT install tire/wheel assembly on a vehicl ...

Crankshaft Sprocket Replacement
Crankshaft Sprocket Replacement Callout Component Name Preliminary Procedure Remove the timing belt. Refer to Timing Belt Replacement. 1 Crankshaft Sprocket Procedure When installing the cran ...