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:

Dinghy Towing All except RS Model with Automatic Transmission
When dinghy towing a vehicle with an automatic transmission, the vehicle should be run at the beginning of each day and at each RV fuel stop for about five minutes. This will ensure proper lubrication of transmission components. To dinghy tow the vehicle from the front with all four wheels on ...

Fuel Tank Filler Door Latch Housing Replacement
Fuel Tank Filler Door Latch Housing Replacement Callout Component Name Preliminary Procedures Remove the rear wheelhouse panel liner. Refer to Rear Wheelhouse Liner Replacement. Remove the fuel tank filler door. Refer to ...

Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Pipe Joint Compound Note: Three types of sealer are commonly used in engines. These are RTV sealer, anaerobic gasket eliminator sealer, and pipe joint compound. The correct sealer and amount must be used in the proper location to prevent oil leaks. DO NOT interchange the 3&# ...