Suzuki 2009 Grand Vitara Owner's Manual page 247

Tires: 6
Letter Rating Speed Rating
Q 99 mph
R 106 mph
S 112 mph
T 118 mph
U 124 mph
H 130 mph
V 149 mph
W 168 mph*
Y 186 mph*
*The letters ZR may be used on tires
with a maximum speed capability over
149 mph and will always be used on
tires with a maximum speed capability
over 186 mph.
J. M+S Marking
This marking indicates the tire
has some mud and snow capabili-
ties and is designed for all-season
use.
Tire Size
The following illustration shows an
example of a typical passenger car tire
size.
EXAMPLE
A B C D E
A. Tire Type
This letter code indicates the pri-
mary intended use of the tire. The
letter "P" identifies a tire primarily
intended for use on a passenger
vehicle.
B. Tire Width
This three-digit number indicates
the tire section width in millime-
ters from sidewall to sidewall.
C. Aspect Ratio
This two-digit number represents
the tire section height divided by
the tire section width.
INSPECTION AND MAINTENANCE
D. Construction Code
This letter code is used to indicate
the type of ply construction in the
tire. The letter "R" means radial
ply tire construction, the letter "D"
means diagonal or bias ply con-
struction, and the letter "B" means
belted-bias ply construction.
E. Rim Diameter
This two-digit number is the wheel
or rim diameter in inches.
WARNING
Your SUZUKI is equipped with
tires which are all the same type
and size. This is important to
ensure proper steering and han-
67D028
dling of the vehicle. Never mix
tires of different size or type on
the four wheels of your vehicle.
Mixing tires could cause you to
lose control while driving which
may lead to an accident. The size
and type of tires used should be
only those approved by SUZUKI
Motor Corporation as standard or
optional equipment for your vehi-
cle.
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79K20-03E