Jeep GLADIATOR 2022 Owner's Manual page 342

340 SERVICING AND MAINTENANCE
Tread Wear
Improper cold tire inflation pressures can cause abnor-
mal wear patterns and reduced tread life, resulting in
the need for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Overinflation produces a jarring and uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver's side B-pillar or rear edge of the driver's side
door.
At least once a month:
•
Check and adjust tire pressure with a good quality
pocket-type pressure gauge. Do not make a visual
judgment when determining proper inflation. Tires
may look properly inflated even when they are
underinflated.
•
Inspect tires for signs of tire wear or visible damage.
CAUTION!
After inspecting or adjusting the tire pressure, always
reinstall the valve stem cap. This will prevent mois-
ture 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 build-up 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 condi-
tions 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 oper-
ating 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 drive a vehicle loaded to the maxi-
mum 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 a ¼ of an inch
(6 mm).
Consult an authorized tire dealer for tire repairs and
additional information.
If equipped with Run Flat tires, and they are damaged,
or experience a loss of pressure, they should be
replaced immediately with another Run Flat tire of iden-
tical size and service description (Load Index and
Speed Symbol). Replace the tire pressure sensor as
well as it is not designed to be reused.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of infla-
tion pressure. This rapid loss of inflation is referred to
as the Run Flat mode. A Run Flat mode occurs when
the tire inflation pressure is of/or below 14 psi (96
kPa). Once a Run Flat tire reaches the Run Flat mode it
has limited driving capabilities and needs to be