Product Warranty

UNDERINFLATION

It is impossible to determine whether tires are properly inflated by simply

looking at them. It is almost impossible to “feel or hear” when a tire is

being run underinflated or nearly flat. Tires must be checked monthly with

a tire pressure gauge.

Pressures should be checked when tires are cold, in other words, before

they have been driven on. Driving, even for a short distance, causes tires

to heat up and air pressure to increase.

Checking pressure when tires are hot:

If pressures are checked after tires have been driven for more than three

minutes or more than one mile, (1.6 km) the tires become hot and the

pressures will increase by approximately 4 psi. Therefore when the tire

pressure is adjusted under these conditions, it should be increased to a gauge

reading of 4 psi greater than the recommended cold inflation pressure.

For Example Only:

Gauge reading of hot tire: . . . . . . . . . . . . . . . . . 32 psi (220 kPa)

If recommended cold inflation pressure is: . . . . . 30 psi (205 kPa)

Desired gauge reading of hot tire 30 + 4 psi = . . 34 psi (205 + 30 = 235 kPa)

Therefore: add 2 psi . . . . . . . . . . . . . . . . . . . . . . (15 kPa)

Check cold pressure as soon as possible, preferably within 24

hours. “Bleeding” air from hot tires could result in under -

inflation. Use an accurate tire gauge to check pressures. Never

allow children to inflate or deflate tires.

TIRE PRESSURE MONITORING SYSTEMS (TPMS):

Your vehicle may be equipped with a Tire Pressure Monitoring System

(TPMS) that is designed to monitor the pressure of tires mounted on your

vehicle and sends a signal to the driver if a tire pressure falls below a

predetermined level. A TPMS should not replace monthly manual pressure

checks for all four (4) tires and the spare. We recommend that you

manually monitor and check tire pressure inflation with a pressure gauge.

Your tires should have the recommended pressure listed by your vehicle's

manufacturer. This information can be found in the vehicle owner's

manual and often on a placard located in the vehicle's door jamb, inside

the fuel hatch, or on the glove compartment door. If you have a plus size

fitment that requires a higher inflation pressure, your tire pressure

monitoring system will require re-calibration to the new inflation pressure.

Refer to your tire dealer/installer of plus size tires for proper inflation

pressure.

We recommend checking air pressure once each month, and before a long

trip. Whether you have a full-sized or mini-spare, make sure that it is

properly inflated as well. If the TPMS generates improper monitoring or

signals we recommend that you consult your owner’s manual provided

with your vehicle and follow-up with your vehicle’s manufacturer.

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