Buick Regal 2018-2026 Owners Manual / Driving and Operating / Starting and Operating
Buick Regal: Starting and Operating
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New Vehicle Break-In
Caution:
The vehicle does not need an
elaborate break-in. But it will
perform better in the long run if
you follow these guidelines:
Do not drive at any one
constant speed, fast or slow,
for the
Starting the Engine
Place the transmission in the
proper gear.
Caution:
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below -18 ВєC (0 ВєF)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coolant hea
SEE MORE:
DTC B0997
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
Symptoms - HVAC Systems - Automatic
NOTE: The following steps must be completed before using the symptom
tables:
1. Perform the Diagnostic System Check - Vehicle before using the HVAC System
Malfunction
procedure in order to verify that all of the following are true:
There are no DTCs set.
The control modules can communicate via
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