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. ...

Battery
WARNING ● Before beginning work on or near any battery, be sure to extinguish all cigarettes, matches, and lighters. Never expose a battery to an open flame or electric sparks. Batteries gi ...

Temperature control dial
This dial regulates the temperature of airflow from the air outlets over a range from the blue side (cool) to red side (warm). ...