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:

Replacing LATCH System Parts After a Crash
Warning: A crash can damage the LATCH system in the vehicle. A damaged LATCH system may not properly secure the child restraint, resulting in serious injury or even death in a crash. To help make sure the LATCH system is working properly after a crash, see your dealer to have the system ...

Wheel Drive Shaft Outer Joint Inspection
Disassembly Procedure Remove the outer constant velocity (CV) joint and boot from the wheel drive shaft. Refer to Front Wheel Drive Shaft Outer Joint and Boot Replacement. Remove any lubricant from the CV joint. Note: Position the cage and the inner race so they a ...

Transmission Fluid Drain and Fill
Draining Procedure Note: The fluid check bolt at the front of the transmission may not be opened. The transmission fluid drained out during the pre-delivery inspection may be re-used. New transmission fluid must be used during servicing work. The transmis ...