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:

    Vanity mirror in the sun visor
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    Safety and disposal information for used engine oil
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    Introduction
    SRS consists of: the SRS warning lamp air bags air bag control unit (with crash sensors) Emergency Tensioning Devices belt force limiters SRS reduces the risk of occupants coming into ...