See also:

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...

Engine Compartment Overview
A. Engine Air Cleaner/Filter . B. Electric Engine Cooling Fan (Out of View). See Cooling System . C. Engine Oil Dipstick. See “Checking Engine Oil” under Engine Oil . D. Engine Oil Fill Cap. ...

When Should an Airbag Inflate?
Frontal airbags are designed to inflate in moderate to severe frontal or near-frontal crashes to help reduce the potential for severe injuries mainly to the driver’s or right front passenger� ...