Tires need the correct amount of air pressure to operate effectively.
Notice: Do not let anyone tell you
that under-inflation or over-inflation is all right. It is not. If your
tires do not have enough air (under-inflation), you can get the following:
• Too much flexing • Too much heat • Tire overloading • Premature or irregular wear • Poor handling • Reduced fuel economy • Unusual wear • Poor handling • Rough ride • Needless damage from road hazards
A vehicle specific Tire and Loading Information label is attached to the vehicle's center pillar, below the driver's door latch. This label lists the vehicle's original equipment tires and the recommended cold tire inflation pressure for the tires when they are cold. The recommended cold tire inflation pressure, shown on the label, is the minimum amount of air pressure needed to support your vehicle's maximum load carrying capacity. For more information regarding how much weight your vehicle can carry, see Loading the Vehicle .
How you load your vehicle affects vehicle handling and ride comfort. When driving with less than the maximum load capacity allowed for your vehicle, you can set tire inflation pressure to the recommended amounts shown in the following chart. Never load your vehicle with more weight than it was designed to carry.
Tire Size | Recommended Cold Tire Inflation | |||
|---|---|---|---|---|
Occupant and Cargo Weight: 573 lbs (260 kg) or Less | Occupant and Cargo Weight: Up to 917 lbs (416 kg) (Vehicle Capacity Weight) | |||
Front Tires | Rear Tires | Front Tires | Rear Tires | |
P245/45R18 100V XL | 33 psi (230 kPa) | 33 psi (230 kPa) | 36 psi (250 kPa) | 39 psi (270 kPa) |
245/45R18 96V | 36 psi (250 kPa) | 36 psi (250 kPa) | 36 psi (250 kPa) | 39 psi (270 kPa) |
245/40R19 94W | 36 psi (250 kPa) | 36 psi (250 kPa ) | 36 psi (250 kPa) | 39 psi (270 kPa) |
P245/40R19 94W | 33 psi (230 kPa) | 33 psi (230 kPa) | 36 psi (250 kPa) | 39 psi (270 kPa) |
T155/80R17 111M (Compact Spare) | 60 psi (420 kPa) | 60 psi (420 kPa) | 60 psi (420 kPa) | 60 psi (420 kPa) |
When to Check
Check your tires once a month or more.
Do not forget the compact spare tire, if your vehicle has one. It should be at 60 psi (420 kPa). For more information about the vehicle's compact spare tire, see Compact Spare Tire .
How to Check
Use a good quality pocket-type gage to check tire pressure. You can't tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they're underinflated. Check the tire's inflation pressure when the tires are cold. Cold means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem. Press the tire gage firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until you reach the recommended amount.
If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Recheck the tire pressure with the tire gage.
Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.
