2003 GMC ENVOY mirror

Freeway Driving
Mile for mile, freeways (also called thruways, parkways,
expressways, turnpikes or superhighways) are the
safest of all roads. But they have their own special rules.The most important advice on freeway driving is: Keep
up with traffic and keep to the right. Drive at the
same speed most of the other drivers are driving.
Too-fast or too-slow driving breaks a smooth traffic ¯ow.
Treat the left lane on a freeway as a passing lane.
At the entrance, there is usually a ramp that leads to
the freeway. If you have a clear view of the freeway as
you drive along the entrance ramp, you should begin
to check traffic. Try to determine where you expect
to blend with the ¯ow. Try to merge into the gap at close
to the prevailing speed. Switch on your turn signal,
check your mirrors and glance over your shoulder as
often as necessary. Try to blend smoothly with the
traffic ¯ow.
Once you are on the freeway, adjust your speed to the
posted limit or to the prevailing rate if it's slower.
Stay in the right lane unless you want to pass.
Before changing lanes, check your mirrors. Then use
your turn signal.
Just before you leave the lane, glance quickly over your
shoulder to make sure there isn't another vehicle in
your ªblindº spot.
4-34

Highway Hypnosis
Is there actually such a condition as ªhighway
hypnosisº? Or is it just plain falling asleep at the wheel?
Call it highway hypnosis, lack of awareness, or
whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the
wind against the vehicle that can make you sleepy. Don't
let it happen to you! If it does, your vehicle can leave
the road in
less than a second,and you could crash and
be injured.What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
·Make sure your vehicle is well ventilated, with a
comfortably cool interior.
·Keep your eyes moving. Scan the road ahead and
to the sides. Check your mirrors and your
instruments frequently.
·If you get sleepy, pull off the road into a rest,
service or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
4-36

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't see or smell CO. It can cause
unconsciousness or death. See ªEngine
Exhaustº in the Index. 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 ªClimate Controlsº in the Index.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 the trailer hitch and platform
(and attachments), safety chains, electrical connector,
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.
4-56

Inspection......................................................6-17
Brake System.............................................6-17
Engine Cooling System................................6-17
Exhaust System..........................................6-16
Fuel System...............................................6-16
Part C - Periodic Maintenance.......................6-16
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-16
Transfer Case and Front Axle
(Four-Wheel Drive)...................................6-17
Instrument Panel Brightness.............................3-17
Instrument Panel.............................................3-35
Cluster.......................................................3-35
Overview..................................................... 3-4
Interior Lamps................................................3-17
J
Jump Starting.................................................5-42
K
Key Lock Cylinders Service..............................6-13
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
L
Lamps On Reminder.......................................3-16
Lamps...........................................................3-15
Exterior......................................................3-15
Interior.......................................................3-17
Lap-Shoulder Belt...................................1-15, 1-24
LATCH System...............................................1-42
Child Restraints...........................................1-42
Securing a Child Restraint Designed for
the LATCH System...................................1-44
Leaving Your Vehicle With the Engine
Running.....................................................2-30
Leaving Your Vehicle.......................................2-12
LEFT REAR DOOR AJAR................................3-62
Liftgate Release..............................................2-13
Liftgate/Liftglass..............................................2-13
Liftglass/Liftgate..............................................2-13
Lighted Visor Vanity Mirror...............................2-16
Light.............................................................3-37
Air Bag Readiness.......................................3-37
Anti-Lock Brake System Warning...................3-41
Brake System Warning.................................3-39
Change Engine Oil......................................3-46
Charging System.........................................3-38
Check Gages Warning.................................3-48
Cruise Control.............................................3-47
Gate Ajar...................................................3-49
Low Fuel Warning.......................................3-50
Malfunction Indicator....................................3-42
8

Message.......................................................3-60
DIC Warnings and Messages........................3-60
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands)....................................................... 7-4
Mirror Operation.............................................2-35
Mirrors..........................................................2-35
Automatic Dimming Rearview with OnStar
ž
and Compass..........................................2-35
Outside Automatic Dimming Mirror with Curb
View Assist.............................................2-38
Outside Convex Mirror.................................2-38
Outside Heated Mirrors................................2-38
Outside Manual Mirrors................................2-37
Outside Power Mirrors..................................2-37
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-19
Normal Maintenance Replacement Parts...........5-104
O
Odometer......................................................3-36
Off-Road Recovery..........................................4-12OIL PRESSURE LOW/STOP ENGINE...............3-60
Oil ................................................................3-46
Change Engine Oil Light...............................3-46
Engine.......................................................5-15
Pressure Gage............................................3-45
Older Children, Restraints................................1-30
Online Owner Center........................................ 7-3
OnStar
žPersonal Calling.................................2-40
OnStaržServices............................................2-39
OnStaržSystem.............................................2-39
OnStaržVirtual Advisor....................................2-40
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-15
Other Warning Devices...................................... 3-6
Outlet Adjustment...................................3-23, 3-28
Outside.........................................................2-38
Automatic Dimming Mirror with Curb View
Assist.....................................................2-38
Convex Mirror.............................................2-38
Heated Mirrors............................................2-38
Manual Mirrors............................................2-37
Power Mirrors.............................................2-37
Overhead Console..........................................2-44
Owners, Canadian............................................... ii
Owner's Information........................................7-11
10

Radios (cont.)
Rear Seat Audio........................................3-103
Setting the Time..........................................3-63
Theft-Deterrent..........................................3-104
Understanding Reception............................3-105
RainsenseŸ Wipers........................................3-10
RDS Messages..............................3-68, 3-75, 3-86
Reading Lamps..............................................3-19
REAR ACCESS OPEN....................................3-61
Rear Axle......................................................5-48
Locking......................................................4-10
Rear Climate Control System............................3-29
Rear Compartment Storage Panel/Cover............2-46
Rear Door Security Locks................................2-12
Rear Floor Storage Lid....................................2-49
Rear Safety Belt Comfort Guides......................1-26
Rear Seat Audio (RSA)..................................3-103
Rear Seat Entertainment System.......................3-92
Rear Seat Operation......................................... 1-6
Rear Seat Passenger Positions.........................1-23
Rear Seat Passengers, Safety Belts..................1-23
Rear Seats (Envoy XL)..................................... 1-7
Rear Underseat Fuse Block..............................5-97
Rear Window Defogger............................3-23, 3-27
Rearview Mirror, Automatic Dimming with
OnStar
žand Compass.................................2-35
Reclining Seatbacks, Power............................... 1-4
Recreational Vehicle Towing.............................4-45
Reduced Engine Power Light............................3-47Remote Control..............................................3-97
Remote Keyless Entry System, Operation............ 2-6
Remote Keyless Entry System............................ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-72
Removing the Spare Tire and Tools...................5-66
Replacement Bulbs.........................................5-52
Replacing Brake System Parts..........................5-41
Replacing Restraint System Parts
After a Crash..............................................1-61
Reporting Safety Defects................................... 7-9
Canadian Government................................... 7-9
General Motors...........................................7-10
United States Government.............................. 7-9
Reprogramming a Single HomeLink
žButton.......2-43
Resetting Defaults...........................................2-44
Restraint System Check...................................6-12
Checking Your Restraint Systems...................1-60
Replacing Restraint System Parts
After a Crash..........................................1-61
Restraint Systems...........................................1-60
Checking....................................................1-60
Replacing Parts...........................................1-61
Retained Accessory Power (RAP)......................2-20
RFA # BATTERY LOW....................................3-62
Right Front Passenger Position, Safety Belts......1-22
RIGHT REAR DOOR AJAR..............................3-62
Roadside......................................................... 7-5
Assistance Program....................................... 7-5
12

Video Screen.................................................3-94
Visor Vanity Mirror..........................................2-16
Visors...........................................................2-16
Voltmeter Gage..............................................3-39
W
Warning Lights, Gages and Indicators................3-34
Warnings.......................................................3-60
DIC Warnings and Messages........................3-60
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-83
Weatherstrip Lubrication...................................6-12
Weight of the Trailer Tongue.............................4-54
Weight of the Trailer........................................4-52
What Kind of Engine Oil to Use........................5-17
What to Add..................................................5-39
What to Do with Used Oil................................5-19
What to Use..........................5-24, 5-36, 5-37, 5-48
Wheels..........................................................5-60
Alignment and Tire Balance..........................5-60
Replacement...............................................5-60
When to Add Engine Oil..................................5-16When to Change Engine Oil
(GM Oil Life System)...................................5-18
When to Check and Change............................5-21
When to Check Lubricant.................................5-48
When to Check Power Steering Fluid................5-36
When to Check..............................................5-55
When to Inspect.............................................5-20
When You Are Ready to Leave After
Parking on a Hill.........................................4-59
Where to Put the Restraint...............................1-39
Why Safety Belts Work....................................1-10
Window Lockout.............................................2-16
Windows.......................................................2-14
Power........................................................2-15
Windshield Washer Fluid Level Check................6-11
Windshield Washer.........................................3-10
Fluid..........................................................5-37
Windshield Wiper............................................5-52
Blade Replacement......................................5-52
Fuses........................................................5-89
Windshield Wipers............................................ 3-9
Winter Driving................................................4-39
Wiper Blade Check.........................................6-12
Y
Your Vehicle and the Environment....................... 6-2
16