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:

Turning the Systems Off and On
The button for TCS and StabiliTrak is on the center console. Caution Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged. To turn off only TCS, press and release the button. The traction off light displays in the instrument cluster. To tu ...

Driver or Passenger Seat Cushion Frame Replacement
Driver or Passenger Seat Cushion Frame Replacement Callout Component Name Preliminary Procedures Remove the driver or passenger seat. Refer to Driver or Passenger Seat Removal and Installation Remove the front seat cushio ...

Drum Brake System Description and Operation
System Component Description The drum brake system consists of the following: Drum Brake Shoes Applies mechanical output force, from hydraulic brake wheel cylinders, to friction surfaces of brake drums. Brake Drums Uses mechanical output force applied to fric ...