WATERLEAK TEST PREPARATION
GM vehicles are designed to operate under normal environmental
conditions.
The design criteria for sealing materials and components takes into
consideration the seali
BODY WATERLEAK REPAIR
WARNING: If the vehicle interior is exposed to moisture and becomes
soaked up to
the level of the sensing and diagnostic module (SDM), the SDM and SDM
harness connector must be
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Microphone
Cellular antenna
Navigation antenna
Bluetooth antenna (If equipped)
Back up battery (If equipped)
WiFi Hotspot (If equipped)
TTY (Teletyp
NOTE: Use the symptom tables only if the following conditions are met:
Refer to Diagnostic Starting Point - Vehicle.
There are no DTCs set.
The control modules can communicate via the serial data link.
Review the system operation in order to familiarize yourself with
the system
functions: Re