Buick Regal Owners & Service Manuals

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

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 DTC C0393

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

 Automatic Headlamp System

When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically. There is a light sensor on top of the instrument panel. Do not cover the sensor; otherwise the headlamps will come on when they are not needed. The system may also turn on the headlamp

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