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:

Smartphone Link (Overview)
Before Using Smartphone Link If equipped, the vehicle can connect to Pandora®, Stitcher SmartRadio™, or other available applications through the infotainment system. The applications must be downloaded to the device first, then the device can be connected to the infotainment system. Pan ...

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 ...

Engine Oil Cooler Installation
Note: Lubricate the oil cooler seal (8) with clean engine oil. Install the engine oil cooler assembly (6) along with 2 NEW sealings (8) and (9). Install the 3 oil cooler bolts (5) and tighten to  10 Y (89 l ...