See also:

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. ...

Automatic illumination (models with moonroof)
The map lights illuminate automatically in the following cases. • Any of the doors other than the rear gate is opened. (The map lights do not illuminate when only the rear gate is opened.) • The door ...

Features
As of its launch, the 2012 Impreza's starting price is unchanged at $17,495 for the sedan ($500 more for the hatchback in all cases), but a comparison shows a few things have been sacrificed — mos ...