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Tire and Wheel Inspection


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The tyres on all new production models have a tyre performance criteria (TPC) rating number moulded on the sidewall. The TPC rating will appear as a 4-digit number preceded by the letters TPC SPEC on the tyre wall near the tyre size. A replacement tyre should have the same TPC rating.

Tire Wear


386773
(1)Hard Cornering/Underinflation
(2)Incorrect Alignment/Lack of Rotation
(3)Incorrect Alignment/Non-uniform Tire
(4)Heavy Acceleration/Over inflation
(5)Wear Indicator

Inspect the tyre and wheel assemblies for the following conditions:

    • Unusual wear such as cupping, flat spots, and/or heel-and-toe wear
        These conditions can cause tyre growl, tyre howl, slapping noises, and/or vibrations throughout the vehicle.
    • Proper inflation to specifications for the vehicle
    • Bulges in the sidewalls
        Do not confuse bulges, which are an abnormal condition, with normal ply splices which are commonly seen as indentations in the sidewall.
    • Bent rim flanges
   


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