UniformTireQualityGrading
Whilethetiresavailable onGeneral Motors
passenger carsandlighttrucksmayvarywith
respecttothesegrades, theymustalsoconform
tofederal safetyrequirements andadditional
General MotorsTirePerformance Criteria (TPC)
standards.
Quality gradescanbefoundwhereapplicable on
thetiresidewall betweentreadshoulder and
maximum section width.Forexample:
Treadwear200TractionAA
TemperatureA
AllPassenger CarTiresMustConform to
Federal SafetyRequirements InAddition To
TheseGrades.
Thefollowing information relates tothesystem
developed bytheUnitedStatesNational Highway
TrafficSafetyAdministration (NHTSA), which
gradestiresbytreadwear,traction, and
Treadwear
Thetreadwear gradeisacomparative rating
basedonthewearrateofthetirewhentested
undercontrolled conditions onaspecified
government testcourse. Forexample, atire
graded150wouldwearoneandahalf(1½)times
aswellonthegovernment courseasatire
graded100.Therelative performance oftires
dependsupontheactualconditions oftheiruse,
however,andmaydepartsignificantly fromthe
normduetovariations indriving habits,service
practices anddifferences inroadcharacteristics
andclimate.
temperature performance. Thisapplies onlyto
vehicles soldintheUnitedStates. Thegradesare
moldedonthesidewalls ofmostpassenger car
tires.TheUniform TireQuality Grading (UTQG)
systemdoesnotapplytodeeptread,winter-type
snowtires,space-saver,ortemporary usespare
tires,tireswithnominalrimdiameters of
10
to12inches(25to30cm),ortosome
limited-production tires.
6-72
| Categories | Cadillac DTS Manuals, Cadillac Manuals |
|---|---|
| Tags | Cadillac DTS 4.6 |
| Model Year | 2010 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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