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:

Remote Keyless Entry (RKE) System Operation
The RKE transmitter may work up to 60m (195 ft) away from the vehicle. Other conditions can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System. The RKE transmitter can have one of the two symbols for the remote trunk release. With Remote Start Shown The follow ...

OnStar Description and Operation
This OnStar® system consists of the following components: Telematics communication interface control module OnStar® three button assembly Microphone Cellular antenna Navigation antenna Bluetooth® antenna (If equipped) Back up battery (If equipped) This system also interfaces wi ...

Exhaust Manifold Heat Shield Replacement (LUV)
Exhaust Manifold Heat Shield Replacement Callout Component Name Warning: Refer to Exhaust Service Warning. 1 Exhaust Manifold Heat Shield Fasteners (Qty: 3) Caution: Refer to Fas ...