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:

Cleaning High Gloss Surfaces and Vehicle Information and Radio Displays
For vehicles with high gloss surfaces or vehicle displays, use a microfiber cloth to wipe surfaces. Before wiping the surface with the microfiber cloth, use a soft bristle brush to remove dirt that could scratch the surface. Then use the microfiber cloth by gently rubbing to clean. Never use w ...

Heater Inlet Hose Replacement (LUV)
Heater Inlet Hose Replacement Callout Component Name Preliminary Procedures Drain the engine coolant. Refer to Cooling System Draining and Filling. Remove the charge air cooler outlet hose. Refer to Charge Air Cooler ...

Engine Oil Cooler Outlet Hose Replacement (LUV)
Engine Oil Cooler Outlet Hose Replacement Callout Component Name Preliminary Procedure Drain the cooling system. Refer to Cooling System Draining and Filling. Disconnect the radiator outlet hose. Refer to Radiator Outlet H ...