The tires on all new production models have a tireperformance criteria (TPC) rating number molded on the sidewall.The TPC rating will appear as a 4-digit number preceded by theletters TPC-SPEC on the tire wall near the tire size. Areplacement tire should have the same TPC rating.
Tire Wear(1) | HardCornering/Underinflation |
(2) | Incorrect Alignment/Lack ofRotation |
(3) | Incorrect Alignment/Non-uniformTire |
(4) | Heavy Acceleration/Overinflation |
(5) | Wear Indicator |
Inspect the tire and wheel assemblies for the followingconditions:
Unusual wear such as cupping, flat spots, and/or heel-and-toewearThese conditions can cause tire growl, tire howl, slappingnoises, and/or vibrations throughout the vehicle.
Proper inflation to specifications for the vehicleBulges in the sidewallsDo not confuse bulges, which are an abnormal condition, withnormal ply splices which are commonly seen as indentations in thesidewall.
Bent rim flangesCruise Control Description and Operation Cruise Control
Cruise control is a speed control system that maintains a desired vehicle speed undernormal driving conditions at speeds above 40-km/h (25-mph). Steep grades may causevariations in the selected vehicle speeds.The following are the main components of the Cruise Control System:The accelerator pedalThe ...