Subaru Forester: Brake booster - Brake system - Braking - Starting and operating - Subaru Forester Owner's ManualSubaru Forester: 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 push the pedal much harder than normal and the braking distance will increase.

    Two separate circuits
    Your vehicle has two separate circuit brake systems. Each circuit works diagonally across the vehicle. If one circuit of the brake system should fail, the other half of the system still works. ...

    Brake assist system
    Do not be overconfident about the brake assist. It is not a system that brings more braking ability to the vehicle beyond its braking capability. Always use the utmost care when driving r ...

    See also:

    Warning and Indicator Lights
    Front Passenger’s Seat Belt Reminder Light The front passenger’s seat belt reminder light is located in the center of the instrument panel. If there is a passenger in the front seat and the ...

    Disabling And Enabling HSA
    This feature can be turned on or turned off. To change the current setting, proceed as follows: For vehicles equipped with the Electronic Vehicle Information Center (EVIC), refer to “Hill Start ...

    Owner’s Maintenance Checks
    You should check the following items at the specified intervals. If you are unsure of how to perform any check, turn to the appropriate page listed. Engine oil level - Check every time you ...