Maintenance42
7G201100AAM-ECTire terminology and definitions
Air Pressure: The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
kilopascal (kPa) or pounds per
square inch (psi).
Accessory Weight : This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, automatic
transaxle, power seats, and air con-
ditioning.
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
kilopascals (kPa) or pounds per
square inch (psi) 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
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings: 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.
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 68 kg
(150 pounds).
XM CAN (ENG) 7.qxp 4/14/2010 10:58 AM Page 42
I7
Index
Occupant detection system ··················\
··················\
········3-45
Odometer/Tripmeter/Trip computer ··················\
············4-47
Oil (Engine) ··················\
··················\
··················\
·············7-14
Outside rearview mirror··················\
··················\
·············4-42
Overheats ··················\
··················\
··················\
··················\
·6-6
Owner maintenance ··················\
··················\
··················\
···7-5
Panoramic sunroof ··················\
··················\
··················\
···4-30
Parking brake··················\
··················\
··················\
··5-28, 7-20
Passenger's front air bag ··················\
··················\
············3-51
Power brakes··················\
··················\
··················\
············5-27
Power outlet ··················\
··················\
··················\
·············4-97
Power steering ··················\
··················\
··················\
·········4-34
Power steering fluid ··················\
··················\
··················\
·7-19
Power window lock button ··················\
··················\
········4-24
Pre-tensioner seat belt··················\
··················\
················3-24
Push starting··················\
··················\
··················\
···············6-5
Rear parking assist system··················\
··················\
·········4-59
Rear seat adjustment ··················\
··················\
··················\
3-11
Rearview camera ··················\
··················\
··················\
·····4-62
Recommended cold tire inflation pressures ··················\
7-32Recommended lubricants and capacities ··················\
·······8-4
Recommended SAE viscosity number··················\
······8-6
Remote keyless entry ··················\
··················\
··················\
·4-6
Road warning ··················\
··················\
··················\
·············6-2
Rocking the vehicle ··················\
··················\
··················\
·5-46
Roof rack ··················\
··················\
··················\
···············4-101
Safety chains ··················\
··················\
··················\
············5-54
Seat belts ··················\
··················\
··················\
··················\
3-18 Pre-tensioner seat belt ··················\
··················\
···········3-24
Seat belt - Driver's··················\
··················\
·················3-20\
Seat belt warning··················\
··················\
··················\
·3-19
Seat belts - Front passenger and rear seat ·················3-22\
Seat heater··················\
··················\
··················\
··················\
3-9
Seatback pocket ··················\
··················\
··················\
·······3-10
Seating capacity ··················\
··················\
··················\
·······5-62
Seats ··················\
··················\
··················\
··················\
·········3-2 Armrest ··················\
··················\
··················\
················3-18
Folding the rear seat ··················\
··················\
··············3-11
Front seat adjustment - manual ··················\
·················3-4
Front seat adjustment - power ··················\
··················\
·3-5
Headrest ··················\
··················\
··················\
·······3-7, 3-16
Lumbar support ··················\
··················\
··················\
·····3-7
Rear seat adjustment ··················\
··················\
·············3-11
Seat heater ··················\
··················\
··················\
·············3-9
Seatback pocket··················\
··················\
··················\
···3-10OP
S
R
XM CAN (ENG) INDEX.QXP 12/4/2009 11:14 AM Page 7