Buick Regal 2018-2026 Service Manual / General Information / Waterleaks
Buick Regal: Waterleaks
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Diagnostic Information and Procedures
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
Repair Instructions
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
SEE MORE:
Symptoms - Cellular Communication
Note: The Following Steps Must Be Completed Before Using The Symptom
Table.
1. Perform The Diagnostic System Check - Vehicle Before Using The Symptom
Tables In Order To
Verify That All Of The Following Are True:
There Are No Dtcs Set.
The Control Modules Can Communicate Via The Serial Data Link
Cleaning Procedures
* PLEASE READ THIS FIRST *
NOTE: Examples used in this article are general in nature and do not
necessarily
relate to a specific engine or system. Illustrations and procedures have
been chosen to guide mechanic through engine overhaul process.
Descriptions of processes of cleaning, inspection, ass
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