Wheel, Tire and Vehicle Tests
Unlike aftermarket brands, GM designs its wheel and tire
systems to be an integral part of a vehicle's architecture.
Before they can carry the GM name, the tire and wheel
systems undergo over 150 tests, and the tires used all
meet GM TPC requirements. More than 50 are on-vehicle
tests that gauge such factors as ride and handling, braking,
noise and vibration. Each wheel and TPC tire set must
meet GM standards for performance, durability and safety.
VEHICLE TESTS
Vehicle tests are specific to the application for
which the wheel is designed. Below is a description of
some of the testing highlights - as well as some of the
benefits they provide.
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Crashworthiness
Description: Includes 30-mph front-impact tests through
analytical modeling or physical crash tests of the vehicle
Benefit: Validates that the vehicle maintains compliance
with the applicable Federal Motor Vehicle Safety Standards
(FMVSS) for occupant protection
-
Brake System
Description: Includes brake system testing both in the
lab and on the actual vehicle; involves braking in a
turn, turning while braking, and measurement of the
distance it takes to stop, among others
Benefit: Validates that the vehicle maintains compliance
with the applicable Federal Motor Vehicle Safety Standards
(FMVSS) for occupant protection
-
Impact
Description: Drops a large, calibrated weight onto the
wheel and TPC tire assembly to simulate impact with
a curb
Benefit: Confirms that the wheel can withstand the impact
without catastrophic damage to the wheel
-
Corrosion
Description: Subjects the wheel to salt spray for 66
hours under lab conditions
Benefit: Ensures that the wheel will not corrode during
normal vehicle life cycle
-
Rolling Resistance
Description: Controls the load, speed, and inflation
pressure while measuring the force required to roll
the tire
Benefit: Provides and indication of anticipated fuel
economy based on the tire
-
Traction Capability
Description: Controls the load, inflation pressure,
speed, and surface contamination, such as snow or water,
while progressively retarding the rotation of the tire
and measuring the resulting slip rates and longitudinal
forces that are generated
Benefit: Evaluates the ability of the tire to accelerate
and stop in wet, dry and snow conditions
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• Chevrolet
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• GMC
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• Cadillac
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Avalanche
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Sierra - Coming Aug 1st
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Escalade - Coming Aug 1st
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Silverado
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Yukon - Coming Aug 1st
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ESV - Coming Aug 1st
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Suburban
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EXT - Coming Aug 1st
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Tahoe 
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