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:

    Driver’s control center differential auto indicator light (STI)
    This light functions while the ignition switch is “ON”. When illuminated, it indicates that the driver’s control center differential is set to the auto mode. It turns off when the driver’s control c ...

    Safety
    The Insurance Institute for Highway Safety crash-tested the 2008 Impreza, and the car earned a Good overall rating — the highest possible score — in frontal-offset, side-impact and rear crash test ...

    Child restraint systems
    Child restraint systems Infants and small children should always be placed in an infant or child restraint system in the rear seat while riding in the vehicle. You should use an infant or child restr ...