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:
Ride & Handling
My first drive of the 2012 Impreza was on dry, warm pavement, where both the
16- and 17-inch alloy wheels lent a comfortable ride. (I didn't drive the base
15-inch steel wheels.) You're always awa ...
Two separate circuits
Your vehicle has a dual circuit brake system. Each circuit works diagonally across
the vehicle. If one circuit of the brake system should fail, the other half of the
system still works. If one cir ...
SUBARU advanced frontal airbag system
Your vehicle is equipped with a SUBARU advanced frontal airbag system that complies
with the new advanced frontal airbag requirements in the amended Federal Motor Vehicle
Safety Standard (FMVSS) N ...