CAUTION!
moisture and dirt from entering the valve stem, which
could damage the valve stem.
Inflation pressures specified on the placard are always
“cold tire inflation pressure”. Cold tire inflation pressure
is defined as the tire pressure after the vehicle has not
been driven for at least three hours, or driven less than
1 mile (1.6 km) after sitting for a minimum of three
hours. The cold tire inflation pressure must not exceed
the maximum inflation pressure molded into the tire
sidewall.
Check tire pressures more often if subject to a wide
range of outdoor temperatures, as tire pressures vary
with temperature changes.
Tire pressures change by approximately 1 psi (7 kPa)
per 12°F (7°C) of air temperature change. Keep this
in mind when checking tire pressure inside a garage,
especially in the Winter.
Example: If garage temperature = 68°F (20°C) and
the outside temperature = 32°F (0°C) then the cold
tire inflation pressure should be increased by 3 psi (21
kPa), which equals 1 psi (7 kPa) for every 12°F (7°C)
for this outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to
40 kPa) during operation. DO NOT reduce this normal
pressure buildup or your tire pressure will be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe speeds
and within posted speed limits. Where speed limits
or conditions are such that the vehicle can be driven
at high speeds, maintaining correct tire inflation
pressure is very important. Increased tire pressure and
reduced vehicle loading may be required for high-speed
vehicle operation. Refer to an authorized tire dealer
or original equipment vehicle dealer for recommended
safe operating speeds, loading and cold tire inflation
pressures.
WARNING!
High speed driving with your vehicle under maximum
load is dangerous. The added strain on your tires
could cause them to fail. You could have a serious
collision. Do not driv
e a vehicle loaded to the
maximum capacity at continuous speeds above 75
mph (120 km/h).
Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires on
your vehicle will cause your vehicle to handle poorly.
The instability could cause a collision. Always use
radial ply tires in sets of four. Never combine them
with other types of tires.
Tire Repair
If your tire becomes damaged, it may be repaired if it
meets the following criteria:
● The tire has not been driven on when flat.
● The damage is only on the tread section of your tire
(sidewall damage is not repairable).
● The puncture is no greater than ¼ of an inch (6 mm).
Consult an authorized tire dealer for tire repairs and
additional information.
Damaged Run Flat tires, or Run Flat tires that have
experienced a loss of pressure should be replaced
immediately with another Run Flat tire of identical
size and service description (Load Index and Speed
Symbol). Replace the tire pressure sensor as well as it
is not designed to be reused.
SERVICING AND MAINTENANCE 293
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