2010 Jeep Grand Cherokee Owner's Manual - Page 290

STARTING AND OPERATING 289 Tire Terminology and Definitions Term Accessory Weight Definition This means the combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power steering, power brakes, power windows, power seats, and air conditioning. The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim. A pneumatic tire in which the plies are laid at alternate angles less 90 degrees to the centerline of the tread. The amount of air pressure in a tire, measured in pounds per square inch (psi) or kilopascal (kPa) before a tire has built up heat from driving. The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo. Air Pressure Bead Bias Ply Tire Cold Tire Pressure 5 Curb Weight