Buick Regal: Hill Start Assist (HSA) - Brakes - Driving and Operating - Buick Regal Owners ManualBuick Regal: Hill Start Assist (HSA)

Some vehicles have a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward, during vehicle drive off. After the driver completely stops and holds the vehicle in a complete standstill on a grade, HSA will be automatically activated. During the transition period between when the driver releases the brake pedal and starts to accelerate to drive off on a grade, HSA holds the braking pressure to ensure that there is no rolling. The brakes will automatically release when the accelerator pedal is applied within the two-second window. It will not activate if the vehicle is in a drive gear and facing downhill or if the vehicle is facing uphill and in R (Reverse).

    Brake Assist
    This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brake co ...

    See also:

    Vehicle Dynamics Control operation indicator light
    The indicator light flashes during activation of the skid suppression function and during activation of the traction control function. NOTE ● The light may remain illuminated for a short per ...

    Folding forward
    Press the button, arrow 1, and fold the head restraint forward. ...

    Changing the coolant
    WARNING Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray ...