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:

Rocking the Vehicle to Get it Out
Turn the steering wheel left and right to clear the area around the front wheels. Turn off any traction system. Shift back and forth between R (Reverse) and a low forward gear, spinning the wheels as little as possible. To prevent transmission wear, wait until the wheels stop spinning before s ...

Engine Coolant Temperature Sensor Replacement (Water Outlet)
Engine Coolant Temperature Sensor Replacement Callout Component Name Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Drain the cooling system. Ref ...

Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate Installation (6T40/45/50)
Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate Installation Callout Component Name 1 Low and Reverse and 1??? Clutch Housing Note: The longer legs face the bottom of the case and the ...