2011 Suzuki Grand Vitara Owner's Manual - Page 275
2011 Suzuki Grand Vitara Manual
Page 275 highlights
Tires: 6 INSPECTION AND MAINTENANCE Letter Rating Q R S T U H V W Y Speed Rating 99 mph 106 mph 112 mph 118 mph 124 mph 130 mph 149 mph 168 mph* 186 mph* 67D028 Tire Size The following illustration shows an example of a typical passenger car tire size. EXAMPLE 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 construction, 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 handling 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 vehicle. A B C D E *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 capabilities and is designed for all-season use. A. Tire Type This letter code indicates the primary 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 millimeters from sidewall to sidewall. C. Aspect Ratio This two-digit number represents the tire section height divided by the tire section width. 7-26 79K21-03E