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:
Safety symbol
You will find a circle with a slash through it in this manual. This symbol means
“Do not”, “Do not do this”, or “Do not let this happen”, depending upon the context. ...
Checking the oil level
Check the engine oil level at each fuel stop.
1. Park the vehicle on a level surface and stop the engine. If you check the
oil level just after stopping the engine, wait a few minutes for the oil t ...
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 ...