Range Rover: Temperature - Tires - Range Rover Owner's ManualRange Rover: Temperature

The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel.

Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure.

The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109.

Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

WARNING WARNING

The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

    Traction
    The traction grades, from highest to lowest, are AA, A, B, and C. The grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government ...

    Tire glossary
    See below for a glossary of frequently used terms: lbf/in² or psi Pounds per square inch, an imperial unit of measure for pressure. kPa Kilo Pascal, a metric unit of measure for pressure. Co ...

    See also:

    Switching the rear window wiper on/off
    Combination switch 1 Switch 2 To wipe with washer fluid 3 To switch on intermittent wiping 4 0 To switch off intermittent wiping 5 To wipe with washer fluid ► Turn the SmartKey to po ...

    Three-way catalyst
    The three-way catalyst is an emission control device installed in the exhaust system. Exhaust gases in the three-way catalyst are burned at high temperatures to help reduce pollutants. WARNI ...

    Using the system
    Initialization When the ignition switch is pushed to the ON position, INFINITI Voice Recognition is initialized, which may take up to one minute. When completed, the system is ready to accept ...