Table of Contents
Advertisement
Tire and Wheel Inspection
The tires on all new production models have a tire performance criteria (TPC) rating number molded on the sidewall.
The TPC rating will appear as a 4-digit number preceded by the letters TPC SPEC on the tire wall near the tire size. A
replacement tire should have the same TPC rating.
1. Hard Cornering/Underinflation
2. Incorrect Alignment/Lack of Rotation
3. Incorrect Alignment/Non-uniform Tire
Inspect the tire and wheel assemblies for the following conditions:
• Unusual wear such as cupping, flat spots, and/or heel-and-toe wear
These conditions can cause tire growl, tire 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
Tire Wear
4. Heavy Acceleration/Over inflation
5. Wear Indicator
Wheels and Tires:
2D-9
Advertisement
Table of Contents
Troubleshooting
