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.
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:
SAFETY
The 2011 300C has been named a Top Safety Pick by the Insurance Institute for
Highway Safety. For a car to earn this safety nod, it must receive the highest
score of Good in frontal-offset, side-i ...
Pinch Protect Override
If a known obstruction (ice, debris, etc.) prevents closing
the sunroof, press the switch forward and hold for two
seconds after the reversal occurs. This allows the sunroof
to move toward the c ...
Engine Block Heater — If Equipped
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a
grounded, three-wire extension cord. ...