GMC ENVOY XL 2005 Owners Manual

SEEK:Press this button to advance to the next station
or track and stay there. The display will show the
selection. This function is inactive if the front seat
passengers are listening to the same audio source.
To scan preset stations, press and hold the SEEK button
for two seconds and the radio will advance to the
next preset station. If you continue to hold the button
down, the radio will continue to advance through
the available preset stations. The display will show the
selections. This function is inactive if the front seat
passengers are listing to the radio.
When a cassette tape is playing, press the SEEK button
to go to the next selection on the tape. Press and
hold the SEEK button to go to the other side of the tape.
This function is inactive if the front seat passengers
are listening to a cassette tape.
When a CD is playing, press the SEEK button to go
to the next track on the CD. This function is inactive if
the front seat passengers are listening to a CD.
When a CD is playing in the six-disc CD player, press
and hold the SEEK button for 2 seconds to go you to
the next CD, if multiple CDs are loaded. This function
is inactive if the front seat passengers are listening
to a CD.Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identication Number
(VIN). If the radio is moved to a different vehicle, it
will not operate and LOCKED will appear on the display.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
®is armed.
With THEFTLOCK
®activated, the radio will not operate
if stolen.
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Audio Steering Wheel Controls
If your vehicle has this feature, some audio functions
can be adjusted at the steering wheel. They include the
following:
g(OnStar/Voice Recognition):If your vehicle has
OnStar®, press this button to interact with the OnStar®
system. See the OnStar®manual provided with your
vehicle for more information.
If your vehicle does not have OnStar
®, press this button
to silence the system. Press it again, or any other
radio button, to turn on the sound.PROG (Program):Press this button to play a station
you have programmed on the radio preset pushbuttons.
The radio will only seek preset stations with a strong
signal that are in the selected band.
When a CD is playing in the CD changer, press this
button to go to the next available CD, if multiple CDs are
loaded.
QSOURCER:Press this button to switch between
FM1, FM2, AM, or XM1 or XM2 (if equipped), or a
CD. If a CD is loaded the CD symbol will appear on the
display.
QSEEKR:Press the up or the down arrow to go
to the next or to the previous radio station and stay
there. The radio will only seek stations with a strong
signal that are in the selected band.
When a CD is playing, press the up or the down arrow
to fast forward or reverse.
QVOLR(Volume):Press the up or the down arrow
to increase or to decrease the volume.
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Radio Reception
AM
The range for most AM stations is greater than for
FM, especially at night. The longer range can cause
station frequencies to interfere with each other.
Static can occur on AM stations caused by things
like storms and power lines. Try reducing the treble
to reduce this noise.
FM Stereo
FM stereo will give the best sound, but FM signals
will reach only about 10 to 40 miles (16 to 65 km).
Tall buildings or hills can interfere with FM signals,
causing the sound to fade in and out.
XM™ Satellite Radio Service
XM™ Satellite Radio Service gives digital radio
reception from coast to coast. Just as with FM, tall
buildings or hills can interfere with satellite radio signals,
causing the sound to fade in and out. The radio may
display NO SIGNAL to indicate interference.
Care of the Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes, or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight, and
extreme heat. If they are not, they may not operate
properly or may cause failure of the tape player.
The tape player should be cleaned regularly after every
50 hours of use. The radio may display CLEAN to
indicate that the tape player has been used for 50 hours
without resetting the tape clean timer. If this message
appears on the display, the cassette tape player
needs to be cleaned. It will still play tapes, but it should
be cleaned as soon as possible to prevent damage
to the tapes and player. If there is a reduction in sound
quality, try a known good cassette to see if the tape
or the tape player is at fault. If this other cassette has no
improvement in sound quality, clean the tape player.
For best results, use a scrubbing action, non-abrasive
cleaning cassette with pads which scrub the tape
head as the hubs of the cleaner cassette turn. The
recommended cleaning cassette is available through
your dealer.
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The broken tape detection feature of the cassette
tape player may identify the cleaning cassette as a
damaged tape, in error. To prevent the cleaning cassette
from being ejected, use the following steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press and hold the TAPE CD button for
ve seconds. READY will appear on the display
and a cassette symbol will ash for ve seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer’s
recommended cleaning time.
After the cleaning cassette is ejected, the broken
tape detection feature will be active again.
A non-scrubbing action, wet-type cleaner which uses
a cassette with a fabric belt to clean the tape head can
be used. This type of cleaning cassette will not eject
on its own. A non-scrubbing action cleaner may
not clean as thoroughly as the scrubbing type cleaner.
The use of a non-scrubbing action, dry-type cleaning
cassette is not recommended.
After the player is cleaned, press and hold the EJT
button for ve seconds to reset the CLEAN indicator.
The radio will display CLEANED to show the indicator
was reset.Cassettes are subject to wear and the sound quality
may degrade over time. Always make sure the cassette
tape is in good condition before the tape player is
serviced.
Care of Your CDs and DVDs
Handle discs carefully. Store them in their original cases
or other protective cases and away from direct sunlight
and dust. If the surface of a disc is soiled, dampen
a clean, soft cloth in a mild, neutral detergent solution
and clean it, wiping from the center to the edge.
Be sure never to touch the side without writing when
handling discs. Pick up discs by grasping the outer
edges or the edge of the hole and the outer edge.
Care of the CD and DVD Player
The use of CD lens cleaners for CDs is not advised,
due to the risk of contaminating the lens of the CD optics
with lubricants internal to the CD mechanism.
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Fixed Mast Antenna
The xed mast antenna can withstand most car washes
without being damaged. If the mast should ever
become slightly bent, straighten it out by hand. If the
mast is badly bent, replace it.
Check occasionally to make sure the mast is still
tightened to the fender. If tightening is required, tighten
by hand, then with a wrench one quarter turn.
XM™ Satellite Radio Antenna
System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
The performance of the XM™ system may be affected if
the sunroof is open.
Loading items onto the roof of your vehicle can interfere
with the performance of the XM™ system. Make sure
that the XM™ satellite antenna is not obstructed.
Chime Level Adjustment
The radio is the vehicle’s chime producer. To change
the volume level, press and hold pushbutton 6 with
the ignition on and the radio power off. The chime
volume level will change from the normal level to
loud, and LOUD will appear on the radio display.
To change back to the default or normal setting, press
and hold pushbutton 6 again. The chime level will
change from the loud level to normal, and NORMAL will
appear on the radio display. Removing the radio and
not replacing it with a factory radio or chime will disable
vehicle chimes.
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✍NOTES
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Your Driving, the Road, and Your Vehicle..........4-2
Defensive Driving...........................................4-2
Drunken Driving.............................................4-2
Control of a Vehicle........................................4-5
Braking.........................................................4-5
Anti-Lock Brake System (ABS).........................4-6
Braking in Emergencies...................................4-8
Traction Assist System (TAS)...........................4-8
Locking Rear Axle........................................4-10
Steering......................................................4-10
Off-Road Recovery.......................................4-12
Passing.......................................................4-12
Loss of Control.............................................4-13
Off-Road Driving with Your Four-Wheel-Drive
Vehicle....................................................4-15
Driving at Night............................................4-28
Driving in Rain and on Wet Roads..................4-29City Driving..................................................4-32
Freeway Driving...........................................4-33
Before Leaving on a Long Trip.......................4-34
Highway Hypnosis........................................4-35
Hill and Mountain Roads................................4-36
Winter Driving..............................................4-38
If Your Vehicle is Stuck in Sand, Mud,
Ice or Snow..............................................4-42
Rocking Your Vehicle to Get It Out.................4-43
Loading Your Vehicle....................................4-43
Adding a Snow Plow or Similar Equipment.......4-50
Towing..........................................................4-50
Towing Your Vehicle.....................................4-50
Recreational Vehicle Towing...........................4-50
Towing a Trailer...........................................4-55
Section 4 Driving Your Vehicle
4-1

Your Driving, the Road, and
Your Vehicle
Defensive Driving
The best advice anyone can give about driving is:
Drive defensively.
Please start with a very important safety device in your
vehicle: Buckle up. SeeSafety Belts: They Are for
Everyone on page 1-12.
Defensive driving really means “be ready for anything.”
On city streets, rural roads, or freeways, it means
“always expect the unexpected.”
Assume that pedestrians or other drivers are going to
be careless and make mistakes. Anticipate what
they might do. Be ready for their mistakes.
Rear-end collisions are about the most preventable of
accidents. Yet they are common. Allow enough following
distance. It is the best defensive driving maneuver, in
both city and rural driving. You never know when
the vehicle in front of you is going to brake or
turn suddenly.
Defensive driving requires that a driver concentrate on
the driving task. Anything that distracts from the driving
task — such as concentrating on a cellular telephone call,
reading, or reaching for something on the oor — makesproper defensive driving more difficult and can even
cause a collision, with resulting injury. Ask a passenger to
help do things like this, or pull off the road in a safe place
to do them yourself. These simple defensive driving
techniques could save your life.Drunken Driving
Death and injury associated with drinking and driving is
a national tragedy. It is the number one contributor
to the highway death toll, claiming thousands of victims
every year.
Alcohol affects four things that anyone needs to drive
a vehicle:
Judgment
Muscular Coordination
Vision
Attentiveness
Police records show that almost half of all motor
vehicle-related deaths involve alcohol. In most cases,
these deaths are the result of someone who was
drinking and driving. In recent years, more than
16,000 annual motor vehicle-related deaths have been
associated with the use of alcohol, with more than
300,000 people injured.
4-2

Many adults — by some estimates, nearly half the adult
population — choose never to drink alcohol, so they
never drive after drinking. For persons under 21,
it is against the law in every U.S. state to drink alcohol.
There are good medical, psychological and
developmental reasons for these laws.
The obvious way to eliminate the leading highway
safety problem is for people never to drink alcohol and
then drive. But what if people do? How much is “too
much” if someone plans to drive? It is a lot less
than many might think. Although it depends on each
person and situation, here is some general information
on the problem.
The Blood Alcohol Concentration (BAC) of someone
who is drinking depends upon four things:
The amount of alcohol consumed
The drinker’s body weight
The amount of food that is consumed before and
during drinking
The length of time it has taken the drinker to
consume the alcohol
According to the American Medical Association, a 180 lb
(82 kg) person who drinks three 12 ounce (355 ml)
bottles of beer in an hour will end up with a BAC
of about 0.06 percent. The person would reach thesame BAC by drinking three 4 ounce (120 ml) glasses
of wine or three mixed drinks if each had 1-1/2 ounces
(45 ml) of liquors like whiskey, gin, or vodka.
It is the amount of alcohol that counts. For example, if
the same person drank three double martinis (3 ounces
or 90 ml of liquor each) within an hour, the person’s
BAC would be close to 0.12 percent. A person
who consumes food just before or during drinking will
have a somewhat lower BAC level.
4-3

There is a gender difference, too. Women generally
have a lower relative percentage of body water
than men. Since alcohol is carried in body water, this
means that a woman generally will reach a higher BAC
level than a man of her same body weight will when
each has the same number of drinks.
The law in most U.S. states, and throughout Canada,
sets the legal limit at 0.08 percent. In some other
countries, the limit is even lower. For example, it is
0.05 percent in both France and Germany. The
BAC limit for all commercial drivers in the United States
is 0.04 percent.
The BAC will be over 0.10 percent after three to
six drinks (in one hour). Of course, as we have seen,
it depends on how much alcohol is in the drinks,
and how quickly the person drinks them.
But the ability to drive is affected well below a BAC of
0.10 percent. Research shows that the driving skills
of many people are impaired at a BAC approaching
0.05 percent, and that the effects are worse at night. All
drivers are impaired at BAC levels above 0.05 percent.Statistics show that the chance of being in a collision
increases sharply for drivers who have a BAC of
0.05 percent or above. A driver with a BAC level of
0.06 percent has doubled his or her chance of having a
collision. At a BAC level of 0.10 percent, the chance
of this driver having a collision is 12 times greater; at a
level of 0.15 percent, the chance is 25 times greater!
The body takes about an hour to rid itself of the alcohol
in one drink. No amount of coffee or number of cold
showers will speed that up. “I will be careful” is not the
right answer. What if there is an emergency, a need
to take sudden action, as when a child darts into
the street? A person with even a moderate BAC
might not be able to react quickly enough to avoid
the collision.
There is something else about drinking and driving
that many people do not know. Medical research shows
that alcohol in a person’s system can make crash
injuries worse, especially injuries to the brain, spinal
cord, or heart. This means that when anyone who
has been drinking — driver or passenger — is in a
crash, that person’s chance of being killed or
permanently disabled is higher than if the person
had not been drinking.
4-4