weight GMC ENVOY XUV 2004 Owner's Guide

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can not see or smell CO. It can cause
unconsciousness or death. See
Engine
Exhaust on page 2-39
. To maximize your safety
when towing a trailer:
·Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
·Keep the rear-most windows closed.
·If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
the climate control setting for maximum air
because it only recirculates the air inside
your vehicle. See
Dual Climate Control
System on page 3-20.Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you'll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connection, lamps,
tires and mirror adjustment. If the trailer has electric
brakes, start your vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.
4-62

(A) Light Truck (LT-Metric) Tire:The United States
version of a metric tire sizing system. The letter ªLTº as
the ®rst two characters in the tire size means a light
truck tire engineered to standards set by the U. S. Tire
and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example, if
the tire size aspect ratio is ª75,º as shown in item ªCº of
the illustration, it would mean that the tire's sidewall is
75% as high as it is wide.(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The letter
ªRº means radial ply construction; the letter ªDº means
diagonal or bias ply construction; and the letter ªBº
means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:The service description
indicates the load range and speed rating of a tire. The
load index can range from 1 to 279. Speed ratings
range from ªAº to ªZº. The light truck tire size example
above shows dual or single tire con®gurations.Tire Terminology and De®nitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire's height to
its width. Light Truck (LT-Metric) Tire
5-57

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 In¯ation Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. See
In¯ation - Tire Pressure on page 5-60.
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: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 Identi®cation
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
GVWR:Gross Vehicle Weight Rating, see
Loading
Your Vehicle on page 4-49.
GAWR FRT:Gross Axle Weight Rating for the front
axle, see
Loading Your Vehicle on page 4-49.GAWR RR:Gross Axle Weight Rating for the rear axle,
see
Loading Your Vehicle on page 4-49.
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.
There are 6.9 kPa's to one psi.
Light Truck (LT-Metric) Tire:A tire used on light duty
trucks and some multipurpose passenger vehicles.
Load Index:An assigned number ranging from
1 to 279 that corresponds to the load carrying capacity
of a tire.
Maximum In¯ation Pressure:The maximum air
pressure to which a cold tire may be in¯ated. The
maximum air pressure is molded onto the sidewall.
Maximum Load Rating:The load rating for a tire at the
maximum permissible in¯ation 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). See
Loading Your Vehicle on page 4-49.
Occupant Distribution:Designated seating positions.
5-58

Outward Facing Sidewall:The side of a asymmetrical
tire that has a particular side that faces outward
when mounted on a vehicle. The side of the tire that
contains a whitewall, bears white lettering or bears
manufacturer, brand and or model name molding that is
higher or deeper than the same moldings on the
other sidewall of the tire.
Passenger (P-Metric) Tire:A tire used on passenger
cars and some light duty trucks and multipurpose
vehicles.
Recommended In¯ation Pressure:Vehicle
manufacturer's recommended tire in¯ation pressure and
shown on the tire placard. See
In¯ation - Tire Pressure
on page 5-60andLoading Your Vehicle on page 4-49.
Radial Ply tire:A pneumatic tire in which the ply cords
that extend to the beads are laid at 90 degrees to the
centerline of the tread.
Rim:A metal support for a tire and upon which the tire
beads are seated.
Sidewall:The portion of a tire between the tread and
the bead.
Speed Rating:An alphanumeric code assigned to a
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.
Tread:The portion of a tire that comes into contact
with the road.
Treadwear Indicators:Narrow bands, sometimes
called ªwear bars,º 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 5-63.
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 5-65.
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 4-49.
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 original equipment tire size
and recommended in¯ation pressure. See
Loading Your
Vehicle on page 4-49.
5-59

Sun Visors.....................................................2-21
Sunroof.........................................................2-54
T
Tachometer....................................................3-33
Tailgate.........................................................2-13
TAILGATE AJAR.............................................3-60
TAILGATE GLASS DOWN................................3-60
TAILGATE OPEN............................................3-60
Taillamps
Turn Signal Lamps......................................5-49
Testing the Alarm............................................2-23
Theft-Deterrent, Radio....................................3-117
Theft-Deterrent Systems...................................2-22
Content Theft-Deterrent................................2-22
Passlock
ž...................................................2-23
Throttle, Adjustable..........................................2-27
TIGHTEN FUEL CAP......................................3-60
Tilt Wheel........................................................ 3-6
Tire Sidewall Labeling......................................5-52
Tire Size.......................................................5-56
Tire Terminology and De®nitions........................5-57
Tires.............................................................5-52
Buying New Tires........................................5-64
Chains.......................................................5-68
Changing a Flat Tire....................................5-71
If a Tire Goes Flat.......................................5-70
In¯ation - Tire Pressure................................5-60Tires (cont.)
Inspection and Rotation................................5-61
Spare Tire..................................................5-83
Uniform Tire Quality Grading.........................5-65
Wheel Alignment and Tire Balance.................5-66
Wheel Replacement.....................................5-66
When It Is Time for New Tires......................5-63
To Use the Engine Coolant Heater....................2-28
Top Strap......................................................1-38
Top Strap Anchor Location...............................1-40
Torque Lock...................................................2-37
Total Weight on Your Vehicle's Tires..................4-60
Towing
Recreational Vehicle.....................................4-45
Towing a Trailer..........................................4-56
Your Vehicle...............................................4-45
Traction
Assist System (TAS)...................................... 4-8
Trailer Brakes.................................................4-61
Trailer Wiring Harness.....................................4-66
Transfer Case................................................5-46
Transmission
Fluid, Automatic...........................................5-21
Transmission Operation, Automatic....................2-29
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-8
Traveling to Remote Areas...............................4-17
Trip Information..............................................3-47
Trip Odometer................................................3-32
14

Turn and Lane Change Signals.......................... 3-7
TURN SIGNAL ON.........................................3-57
Turn Signal/Multifunction Lever........................... 3-6
Turn Signals When Towing a Trailer..................4-63
Two-Wheel-Drive Vehicles................................4-46
U
Understanding Radio Reception.......................3-119
Uniform Tire Quality Grading............................5-65
United States................................................... 7-4
Used Replacement Wheels..............................5-67
Using Cleaner on Fabric..................................5-85
Using HomeLink
ž...........................................2-50
Using Song List Mode...................................3-101
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-49
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders.................................................... 7-9
Vehicle Identi®cation
Number (VIN).............................................5-91
Service Parts Identi®cation Label...................5-92Vehicle Personalization
Memory Seat..............................................2-54
Vehicle Storage..............................................5-40
Video Screen................................................3-107
Visor Vanity Mirror..........................................2-21
Visors...........................................................2-21
Voltmeter Gage..............................................3-35
W
Warning Lights, Gages and Indicators................3-30
Warnings
DIC Warnings and Messages........................3-56
Other Warning Devices.................................. 3-5
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-87
Weight Distributing Hitches and Weight
Carrying Hitches..........................................4-60
Weight of the Trailer........................................4-58
Weight of the Trailer Tongue.............................4-59
What Kind of Engine Oil to Use........................5-16
What to Add..................................................5-38
What to Do with Used Oil................................5-19
What to Use..........................5-24, 5-35, 5-36, 5-46
Wheels
Alignment and Tire Balance..........................5-66
Replacement...............................................5-66
15