SATURN 2004 ion User Manual
Rim: A metal support for a tire and upon which the tire
beads are seated.
beads are seated.
Sidewall: The portion of a tire between the tread and
the bead.
the bead.
Speed Rating: An alphanumeric code assigned to a
tire indicating the maximum speed at which a tire
can operate.
tire indicating the maximum speed at which a tire
can operate.
Traction: The friction between the tire and the road
surface. The amount of grip provided.
surface. The amount of grip provided.
Tread: The portion of a tire that comes into contact
with the road.
with the road.
Treadwear Indicators: Narrow bands, sometimes
called “wear bars,” that show across the tread of a tire
when only 2/32 inch of tread remains. See When It
Is Time for New Tires on page 5-69.
called “wear bars,” that show across the tread of a tire
when only 2/32 inch of tread remains. See When It
Is Time for New Tires on page 5-69.
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 5-71.
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 5-71.
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 4-33.
seating positions multiplied by 150 lbs. (68 kg) plus
the rated cargo load. See Loading Your Vehicle
on page 4-33.
Vehicle Maximum Load on the Tire: Load on an
individual tire due to curb weight, accessory weight,
occupant weight and cargo weight.
individual tire due to curb weight, accessory weight,
occupant weight and cargo weight.
Vehicle Placard: A label permanently attached to a
vehicle showing the original equipment tire size and
recommended inflation pressure. See Loading
Your Vehicle on page 4-33.
vehicle showing the original equipment tire size and
recommended inflation pressure. See Loading
Your Vehicle on page 4-33.
5-65