Buick Regal 2018-2026 Owners Manual / Driving and Operating / Ride Control Systems
Buick Regal: Ride Control Systems
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Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control
System (TCS) and StabiliTrak, an
electronic stability control system.
These systems help limit wheel slip
and assist the driver in maintaining
cont
Selective Ride Control (GS
Models Only)
Selective Ride Control adapts to the
preference of the driver with one of
three driving modes: Normal,
Sport, or GS.
The following electronic systems
have been calibrated for each
driving mode:
Con
Cruise Control
With cruise control the vehicle can
maintain a speed of about 40 km/h
(25 mph) or more without keeping
your foot on the accelerator. Cruise
control does not work at speeds
below 40 km/h (25 mph).
Warn
SEE MORE:
DTC B389A
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 Descriptor
DT
Description and Operation
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), as well as any modules which
store and report
the environment identifier.
When an ignition key is
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