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:

Engine Oil Change
When a %CHANGE message displays in the DIC, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not indicate the need for vehicle service for more than a year. The engine oil and filter must be changed ...

Tires and Wheels Description and Operation (Equipment)
GM Recommended Tire Balancer Hunter RF33 Road Force balancer or equivalent with the following options: Auto Clamp – allows for centering repeatability and prevent damage to the wheel. Wheel Lift – helps prevent wheel damage and assists in the accuracy of the placeme ...

Automatic Transmission Flex Plate Installation
Special Tools EN-652 Automatic Transmission Flex Plate Holder For equivalent regional tools, refer to Special Tools. Clean the automatic transmission flex plate bolt threads. Install the automatic transmission flex plate (2) and the EN-652 holder to hold the automatic trans ...