751
Maintenance
Tire terminology and definitions
Air Pressure: The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
pounds per square inch (psi) or kilo-
pascal (kPa).
Accessory Weight: This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, automatic transmis-
sion, power seats, and air conditioning.
Aspect Ratio: The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire : A pneumatic tire in
which the plies are laid at alternate
angles less than 90 degrees to the
centerline of the tread.
Cold Tire Pressure: The amount of
air pressure in a tire, measured in
pounds per square inch (psi) or kilo-
pascals (kPa) before a tire has built
up heat from driving. Curb Weight: This means the weight
of a motor vehicle with standard and
optional equipment including the max-
imum capacity of fuel, oil and coolant,
but without passengers and cargo.
DOT Markings: A code molded into
the sidewall of a tire signifying that
the tire is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. The DOT
code includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.
GVWR: Gross Vehicle Weight Rating
GAWR FRT: Gross Axle Weight
Rating for the Front Axle.
GAWR RR: Gross Axle Weight
Rating for the Rear axle.
Intended Outboard Sidewall
: The
side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa): The metric unit for
air pressure.
Light truck (LT) tire: A tire designat-
ed by its manufacturer as primarily
intended for use on lightweight trucks
or multipurpose passenger vehicles. Load ratings
: The maximum load
that a tire is rated to carry for a given
inflation pressure.
Load Index: An assigned number
ranging from 1 to 279 that corre-
sponds to the load carrying capacity
of a tire.
Maximum Inflation Pressure : The
maximum air pressure to which a
cold tire may be inflated. The maxi-
mum air pressure is molded onto the
sidewall.
Maximum Load Rating : The load
rating for a tire at the maximum per-
missible inflation pressure for that
tire.
Maximum Loaded Vehicle Weight:
The sum of curb weight; accessory
weight; vehicle capacity weight; and
production options weight.
Normal Occupant Weight: The
number of occupants a vehicle is
designed to seat multiplied by 150
pounds (68 kg).
Occupant Distribution : Designated
seating positions.
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Index
Brake system··················\
··················\
············ ·5-25
Anti-lock brake system (ABS) ··················\
·······5-29
Electronic stability program (ESC) ··················\
··5-31
Parking brake ··················\
··················\
·········5-27
Power brakes ··················\
··················\
········· ·5-25
Brakes/clutch fluid ··················\
··················\
····· ·7-28
Bulb replacement ··················\
··················\
······· ·7-67
Bulb wattage ··················\
··················\
···············8-2
California perchlorate notice ··················\
·············7-86
Capacities (Lubricants) ··················\
··················\
···8-4
Care Exterior care ··················\
··················\
········· ·7-76
Interior care ··················\
··················\
·········· ·7-82
Tire care ··················\
··················\
·············· ·7-41
Cargo capacity ··················\
··················\
·········· ·5-53
Cargo weight ··················\
··················\
············ ·5-57
Center console storage ··················\
················· ·4-120
Central door lock switch ··················\
················· ·4-18
Certification label ··················\
··················\
······· ·5-55
Certification label ··················\
··················\
·········8-6
Chains Tire chains ··················\
··················\
············ ·5-49
Changing tires ··················\
··················\
··········· ·6-13
Checking tire inflation pressure ··················\
·········7-43 Child restraint system
··················\
··················\
·· ·3-27
Lower anchor ··················\
··················\
·········3-34
Passerger's seat ··················\
··················\
······ ·3-38
Seat belt ··················\
··················\
··············· ·3-30
Tether anchor system ··················\
················· ·3-32
Cigarette lighter ··················\
··················\
······· ·4-121
Climate control air filter ··················\
···········4-100, 112
Climate control air filter replacement ··················\
···7-33
Clock (Digital) ··················\
··················\
········· ·4-124
Collision sensors ··················\
··················\
·········3-55
Combined instrument, see instrument cluster ···········4-45
Compact spare tire replacement ··················\
·········7-46
Compass ··················\
··················\
················· ·4-37
Consumer information ··················\
··················\
··· ·8-8
Coolant ··················\
··················\
··················\
· ·7-25
Cooling fluid, see engine coolant ··················\
·······7-25
Crankcase emission control system ··················\
·····7-83
Cruise control system ··················\
··················\
·· ·5-37
Cup holder ··················\
··················\
··············4-120
Curtain air bag ··················\
··················\
·········· ·3-54
Dashboard illumination, see instrument panel illumination· ·4-46
Dashboard, see instrument cluster··················\
·······4-45
Daytime running light (DRL) ··················\
············4-83
Defogging (Windshield) ··················\
················ ·4-114
D
C
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