Warranty

24
TIRE SAFETY AND MAINTENANCE INFORMATION
Q, R, S, T, U, H, V, W, Y, or (Y) to identify the particular tire’s speed
rating. Additionally, the letter Z may appear in the size designation.
When purchasing or replacing speed-rated tires, make sure to:
• Use the ranking in the following chart to compare the speed
symbols of all the tires.
• Follow the vehicle manufacturer’s recommendations, if any,
concerning the use of speed-rated tires.
To avoid reducing the speed capability of the vehicle, replace a
speed-rated tire only with another tire having at least the same or
higher speed rating. Remember, the “top speed” of the “lowest
rated” tire on the car cannot be exceeded without risk of tire failure.
The letter symbols and corresponding design speeds are:
Speed-Rated Symbol Speed Category
M Up to 81 mph (130 km/h)
N Up to 87 mph (140 km/h)
P Up to 93 mph (150 km/h)
Q Up to 99 mph (160 km/h)
R Up to 106 mph (170 km/h)
S Up to 112 mph (180 km/h)
T Up to 118 mph (190 km/h)
U Up to 124 mph (200 km/h)
H Up to 130 mph (210 km/h)
V Up to 149 mph (240 km/h)
W Up to 168 mph (270 km/h)*
Y Up to 186 mph (300 km/h)*
Z R Over 149 mph (240 km/h)**
(Y) Over 186 mph (300 km/h)**
* Any tire with a speed capability above 149 mph (240 km/h) can, at the
tire manufacturer’s option, include a “Z” in the size designation (e.g.,
245/40ZR18). If the load index and the speed symbol are not included,
the tire manufacturer must be consulted for the maximum speed
capability (P245/40ZR18 speed capability is greater than 149 mph [240
km/h]). If a service description is included with the size description,
the speed capability is limited by the speed symbol in the service
description (i.e., 235/45ZR17 97W = maximum speed 168 mph [270
km/h]).
** Although no upper limit speed is specifi ed, the indicated tires
nonetheless have limited rated speed capability. Call [phone]
for a referral for more technical information.
Tire speed symbols do not imply that vehicles can be safely driven
at the maximum speed for which the tire is rated, particularly
under adverse road and weather conditions, or if the vehicle has
unusual characteristics. Never operate a vehicle in an unsafe or
unlawful manner.
NOTICE