Temperature Grades

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.

The temperature grade for this tire is established for a tire that is properly WARNING!

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

    See also:

    Sidelights and low beams
    The warning light on the dial turns on when sidelights, parking lights or low beams are turned on. ...

    Injection system failure
    (Multijet versions - amber) EOBD SYSTEM FAILURE (petrol versions - amber) Injection system failure Turning the ignition key to MAR the warning light turns on but it should go off after engine ...

    The fiat code system
    To further protect you car from theft, it has been fitted with an engine immobilising system. This system is automatically activated when the ignition key is removed. An electronic device, in fact, ...