Brake booster

The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power.

The brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to depress the pedal much harder than normal and the braking distance will increase.

    See also:

    SRS airbag system servicing
    - When discarding an airbag module or scrapping the entire vehicle damaged by a collision, consult your SUBARU dealer. - The SRS airbag has no userserviceable parts. Do not use electric ...

    Measuring and adjusting air pressure to achieve proper inflation
    Check and, if necessary, adjust the pressure of each tire (including the spare) at least once a month and before any long journey. Check the tire pressures when the tires are cold. Use a pressure gaug ...

    To decrease the speed (by brake pedal)
    1. Depress the brake pedal to release cruise control temporarily. 2. When the speed decreases to the desired speed, press the “SET/COAST” button once. Now the desired speed is set and the vehicle wil ...