Buick Regal: Repair Instructions
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Park Brake Calibration
The park brakes do not require calibration often. Park brake calibration may
be required after certain
service procedures are performed. Some of these procedures are as follows:
Park brake actuator
Parking Brake Actuator Replacement (GNQ)
Removal Procedure
WARNING: Brake Dust Warning
1. Set the park brake in Service Mode.
Manual Method
Change the transmission gear to neutral or park position.
Press and hold the push button start swi
Description and Operation
ELECTRONIC PARKING BRAKE DESCRIPTION
Vehicles with the electric parking brake have a switch in the center console
or on the dash, which takes
the place of the manual parking brake system, the foot pe
SEE MORE:
DTC B3415 or B3425
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
DTC B125A (IOR/IOT/IOS)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refer to Diagnostic Procedure Instructions for an overview of each
diagnostic category.
DTC Descripto
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