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:

Compass
The vehicle may have a compass display in the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, and vehicle speed information. Avoid covering the GPS antenna, located on the roof, for long perio ...

Instrument Panel Upper Trim Panel Replacement - Right Side
Instrument Panel Upper Trim Panel Replacement - Right Side Callout Component Name Preliminary Procedure Disable the SIR system. Refer to SIR Disabling and Enabling. Remove the instrument panel center molding. Refer to Inst ...

Airbag Front Passenger Presence Sensor Replacement
Airbag Front Passenger Presence Sensor Replacement Callout Component Name Warning: Replace the passenger presence system as a complete assembly to prevent possible injury to the occupant. All the components in the se ...