DTC B2955 (with BTM)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnos
IMMOBILIZER DESCRIPTION AND OPERATION
Without BTM
The immobilizer system functions are provided by the Immobilizer Control
Module, the Body Control
Module (BCM) and the Engine Control Module (ECM),
Voice Command Button
Blue OnStar Button
Red Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to an OnStar
Advisor for Emergency, Security,
Navigation, Connections, and
Diagnostics Services. OnStar
services may require a paid servi
Heater and Air Conditioning User Interface Control Replacement
Preliminary Procedure
Instrument Panel Lower Trim Panel Replacement.
Heater and Air Conditioning User Interface Control Bolt[2x]
CAUTION:
Fastener Caution.
Tighten
2.5N.m (22 lb in)
Heater and Air Conditioning User Interface Cont