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:

TPMS Malfunction Light
The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. The malfunction light comes on at each ign ...

SIR Seatbelt Pretensioner Handling Warning
Warning: When carrying an undeployed inflatable restraint seat belt retractor pretensioner: Do not carry the seat belt pretensioner by the seat belt webbing or pigtail connector, if equipped. Carry the seat belt pretensioner by the housing, keeping hands and fingers away fro ...

Special Tools
Illustration Tool Number / Description CH?E9376 Holding Wrench CH?E9400 J-45859 Hub Spindle Remover DT-6332 Seal Protector DT- ...