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 Heater
The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged in at least four hours before starting. 1. Turn off the engine. 2. Open the hood and unwrap ...

Audio Disc Player and USB Receptacle Replacement
Audio Disc Player and USB Receptacle Replacement Callout Component Name 1 Audio Disc Player and USB Receptacle Procedure Open the instrument panel compartment door and using a small flat bladed tool, release ...

Front Seat Belt Anchor Plate Tensioner Cover Replacement (4 Way)
Front Seat Belt Anchor Plate Tensioner Cover Replacement Callout Component Name 1 Driver or Passenger Seat Belt Tensioner Cover Procedure Remove the tensioner cover by pushing downward on the rear and center o ...