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:

Roadside Assistance Program
For U.S.-purchased vehicles, call 1-800-243-8872; (Text Telephone (TTY): 1-888-889-2438). For Canadian-purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year. Calling for Assistance When calling Roadside Assistance, have the following information ready: ...

Rear Side Door Trim Replacement (Sedan)
Rear Side Door Trim Replacement Callout Component Name 1 Rear Side Door Inside Handle Bolt Cap 2 Rear Side Door Inside Handle Fastener Caution: Refer to Fastener Caution. Proce ...

Secondary Air Injection System Description
The Secondary Air Injection System aids in the reduction of hydrocarbon exhaust emissions during a cold start. This occurs when the start-up engine coolant temperature (ECT) is between −10 to +56°C (14?E33°F), the intake air temperature (IAT) is greater than −10°C (14°F) and it ...