See also:

Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per square inch). Accessory Weight: ...

What Makes an Airbag Inflate?
In an impact of sufficient severity, the airbag sensing system detects that the vehicle is in a crash. Additionally, in the case of a “rollover capable” roof-mounted side impact airbag, the se ...

Rear Axle
When to Check Lubricant It is not necessary to regularly check rear axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspe ...