Gmc 2008 Envoy User Manual download pdf (Page 358)

UTQGS (Uniform Tire Quality Grading

Standards)

: A tire information system that

provides consumers with ratings for a tire’s

traction, temperature, and treadwear. Ratings

are determined by tire manufacturers using

government testing procedures. The ratings are

molded into the sidewall of the tire. See Uniform

Tire Quality Grading on page 5-77.

Vehicle Capacity Weight

: The number of

designated seating positions multiplied by

150 lbs (68 kg) plus the rated cargo load.

See Loading Your Vehicle on page 4-34.

Vehicle Maximum Load on the Tire

: Load on

an individual tire due to curb weight, accessory

weight, occupant weight, and cargo weight.

Vehicle Placard

: A label permanently attached to

a vehicle showing the vehicle’s capacity weight

and the original equipment tire size and

recommended inﬂation pressure. See “Tire and

Loading Information Label” under Loading

Your Vehicle on page 4-34.

Inﬂation - Tire Pressure

Tires need the correct amount of air pressure to

operate effectively.

Notice: Do not let anyone tell you that

under-inﬂation or over-inﬂation is all right.

It is not. If your tires do not have enough air

(under-inﬂation), you can get the following:

• Too much ﬂexing

• Too much heat

• Tire overloading

• Premature or irregular wear

• Poor handling

• Reduced fuel economy

If your tires have too much air (over-inﬂation),

you can get the following:

• Unusual wear

• Poor handling

• Rough ride

• Needless damage from road hazards

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