Toyota
Buick Regal
 2018-2022 Owners Manual
Vehicle Care » Vehicle Checks
All-Wheel Drive

Transfer Case

Under normal driving conditions, transfer case fluid does not require maintenance unless there is a fluid leak or unusual noise. If required, have the transfer case serviced by your dealer.

Starter Switch Check

Warning: When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be sure there is enough room around the vehicle.

2. Apply both the parking brake and the regular brake.

Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.

3. Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral).

If the vehicle starts in any other position, contact your dealer for service.

Automatic Transmission Shift Lock Control Function Check

Warning: When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.

1. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a level surface.

2. Apply the parking brake. Be ready to apply the regular brake immediately if the vehicle begins to move.

3. With the engine off, turn the ignition on, but do not start the engine. Without applying the regular brake, try to move the shift lever out of P (Park) with normal effort. If the shift lever moves out of P (Park), contact your dealer for service.

Park Brake and P (Park) Mechanism Check

Warning: When you are doing this check, the vehicle could begin to move.

You or others could be injured and property could be damaged.

Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.

  • To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.
  • To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake.

Contact your dealer if service is required.

    More about «Vehicle Checks»:

    Doing Your Own Service Work

    Engine Compartment Overview

    Engine Oil

    Selecting the Right Engine Oil

    Engine Oil Life System

    Engine Air Cleaner/Filter

    Cooling System

    Checking Coolant

    Engine Overheating

    Washer Fluid

    Brakes

    Brake Fluid

    Battery - North America

    All-Wheel Drive

    Wiper Blade Replacement

    Windshield Replacement

    Buick Regal 2018-2022 Owners Manual / Vehicle Care / Vehicle Checks / All-Wheel Drive

    Buick Regal 2018-2022 Owners Manual

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