Jeep 2009 Grand Cherokee - Owner Manual - Manual (Page 330)

EXAMPLE:
R = Construction code
— ЉRЉ means radial construction
— ЉDЉ means diagonal or bias construction
15 = Rim diameter in inches (in)
Service Description:
95 = Load Index
— A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
— A symbol indicating the range of speeds at which a tire can carry a load corresponding to
its load index under certain operating conditions
— The maximum speed corresponding to the speed symbol should only be achieved under
specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and
posted speed limits)
328 STARTING AND OPERATING