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:

Body Panel Paint Protector Replacement (VGC)
The paint protective film and vehicle surface temperature should be 13?€“32?°C (55?€“90?°F) for best results. Automatic car washes should be avoided for at least 24?€‰hours after the paint protective film application. Wipe the vehicle surface with isopropyl alcohol or fl ...

Tire and Wheel Assembly Balancing - On-Vehicle
Special Tools EL-38792-A Electronic Vibration Analyzer (EVA) 2 If after following the tire and wheel vibration diagnostic process, some amount of tire and wheel vibration is still evident, an on-vehicle high-speed spin balancer may be used to perform an on-vehicle balance in an attempt ...

Tire Dismounting and Mounting (Lubricant)
Important: Lubricant should be applied to form a thin, just visible layer, on the bead foot and bead outer areas. There should not be any visible clumps of lubricant. Never use soap or any lubricant net specifically designed for tire assembly. Lubricant ...