wheel GMC ENVOY 1998 User Guide

Automi ic Transmission Operation
There are several different positions for your shift lever.
PARK (P): This locks your rear wheels. It’s the best
position to use when you start your engine because your
vehicle can’t move easily.
It is dangerous to get out of your vehicle if the
shift lever is not fully in
PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don’t leave your vehicle when the engine is
running unless
you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured.
To be sure your
vehicle won’t move, even when you’re on fairly
level ground, always set your parking brake and
move the shift lever to
PARK (P).
See “Shifting Into PARK (P)” in the Index. If
you’re pulling
a trailer, see “Towing a Trailer” in
the Index.
Ensure the shift lever is fully in PARK (P) before
starting the engine. Your vehicle has
a
Brake-Transmission Shift Interlock (BTSI). You have to
fully apply your regular brakes before you can shift
from PARK (P) when the ignition key is
in RUN. If you
cannot shift out of PARK (P), ease pressure on the shift
lever
-- push the shift lever all the way into PARK (P)
(press
the button in on the console shift lever) as you
maintain brake application. Then move the shift lever
into the gear
you wish. See “Shifting Out of PARK (P)”
in the Index.
REVERSE (R): Use this gear to back up.
NOTICE:
Shifting to REVERSE (R) while your vehicle
is moving forward could damage your
transmission. Shift to
REVERSE (R) only
after your vehicle is stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transmission, see
“Stuck: In Sand, Mud, Ice or Snow”
in the Index.
2-18
ProCarManuals.com

NEUTRAL (N): In this position, your engine doesn’t
connect with the wheels.
To restart when you’re already
moving, use
NEUTRAL (N) only.
Shifting out of PARK (P) or NEUTRAL (N) while
your engine
is “racing” (running at high speed) is
dangerous. Unless your foot is firmly on the
brake pedal, your vehicle could move very rapidly.
You could lose control and hit people or
objects. Don’t shift out
of PARK (P) or
NEUTRAL (N) while your engine is racing.
ml
I NOTICE:
Damage to your transmission caused by shifting
out
of PARK (P) or NEUTRAL (N) with the
engine racing isn’t covered by your warranty. DRIVE
(D):
This position is for normal driving. If you
need more power for passing, and you’re:
0 Going less than about 35 mph (55 krdh), push your
accelerator pedal about halfway down.
Going about 35 mph (55 krdh) or more, push the
accelerator all the way down.
You’ll shift down
to the next gear and have more power.
DRIVE
(D) should not be used when towing a trailer,
carrying a heavy load, driving on steep hills, or for
off-road driving. Select THIRD
(3) when operating the
vehicle under any of these conditions.
THIRD (3): This position is also used for normal
driving, however it offers more power and lower fuel
economy than DRIVE (D).
You should use THIRD (3)
when towing a trailer, carrying a heavy load, driving on
steep hills or winding roads or for off-road driving.
SECOND (2): This position gives you more power but
lower fuel economy than
THIRD (3). You can use
SECOND
(2) on hills. It can help control your speed as
you
go down steep mountain roads, but then you would
also want to use your brakes
off and on.
You can also use SECOND
(2) for starting your vehicle
from a stop
on slippery road surfaces.
2-19
ProCarManuals.com

FIRST (1): This position gives you even more power
but lower fuel economy than SECOND (2). You can use
it on very steep hills, or in deep snow or mud. If the
selector lever
is put in FIRST (1) while the vehicle is
moving forward, the transmission won’t shift into
FIRST (1) until the vehicle is going slowly enough.
NOTICE:
If your rear wheels can’t rotate, don’t try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against a solid
object. You could damage your transmission.
Also, if you
stop when going uphill, don’t hold
your vehicle there with only the accelerator
pedal. This could overheat and damage the
transmission.
Use your brakes or shift into
PARK
(P) to hold your vehicle in position
on a hill.
Parking Brake
To set the parking brake. hold the regular brake pedal
down with your
right foot. Push down the parking brake
pedal with your left foot.
If the ignition is on, the brake
system warning light
will come on.
To release the parking brake, hold the regular brake
pedal down.
Pull the BRAKE RELEASE lever. It is located on the
bottom of the driver’s side of the instrument panel.
2-20
ProCarManuals.com

Locking Rear Axle
Your locking rear axle can give you additional traction
on snow, mud, ice, sand or gravel.
It works like a
standard axle most
of the time, but when one of the rear
wheels has no traction and the other does, this feature
will allow the wheel with traction to move the vehicle.
Four-wheel Drive
Because your vehicle has four-wheel drive, you can
send your engine’s driving power to all four wheels for
extra traction.
To shift out of two-wheel drive and into
four-wheel drive, push the
4HI or 4LO button on the
transfer case switch. You should use
2HI for most
normal driving conditions.
Driving in the 4HI or 4LO positions for a long
time on dry
or wet pavement could shorten the
life
of your vehicle’s drivetrain.
Electronic Transfer Case
The transfer case switches
are above the radio controls.
Use
these switches to shift into and out of four-wheel
drive.
You can choose among three driving settings:
2HI: This setting is for driving in most street and
highway situations. Your front axle is not engaged in
two-wheel drive.
4HI: This setting engages your front axle to help drive
your vehicle. Use
4HI when you need extra traction,
such as on snowy or icy roads, or in most
off-road situations.
2-26
ProCarManuals.com

4LO: This setting also engages your front axle to give
you extra traction. You may never need 4LO. It sends
the maximum power to all four wheels.
You might
choose 4LO if you were driving off-road in sand, mud
or deep snow and climbing or descending steep hills.
Indicator lights in the switches show
you which setting
you are in. The indicator lights will come on briefly
when you turn on the ignition and one will stay on.
If the lights do not come on, you should take your
vehicle in for service. An indicator light will flash
while shifting. It will remain illuminated when the
shift is completed.
Shifting from 2HI to 4HI
Press and release the 4HI switch. This can be done at
any speed, and the front axle will lock automatically.
Shifting from 4HI to 2HI
Press and release the 2HI switch. This can be done at
any speed, and the front axle will unlock automatically.
Shifting from 2HI or 4HI to 4LO
To shift from 2HI or 4HI to 4L0, the vehicle must be
stopped
or moving less than 3 mph (4.8 kmh) with the
transmission
in NEUTRAL (N). The preferred method
for shifting into 4LO is to
have your vehicle moving 1 to
2 mph (1.6 to 3.2 kmh). Press and release the 4LO
switch. You must wait for the 4LO indicator light to stop
flashing and remain illuminated before shifting your
transmission into gear.
If the 4LO switch
is pressed when your vehicle is in
gear and/or moving,
the 4LO indicator light will flash
for
30 seconds and not complete the shift unless your
vehicle
is moving slower than 3 mph (4.8 kdh) and the
transmission is in NEUTRAL
(N).
If your transfer case does not shift into 4L0, your
transmission indicator switch may require adjustment.
With your transmission in NEUTRAL (N), press and
release the 4LO switch. While the 4LO indicator light
is
flashing, shift your transmission into PARK (P). Wait
until the 4LO indicator light remains illuminated before
shifting your transmission into gear. This will get you
into 4L0, but you should take your vehicle in for service
to restore normal operation.
2-27
ProCarManuals.com

Press the side of the switch with the down arrow to
lower the window.
Press the side of the switch
with the up arrow to raise
the window.
Express-Down Window
The driver’s window switch has an express-down
feature that allows
you to lower it without holding the
window switch, Hold the. driver’s window switch down
for more than half a second to activate
the express-down
feature, Lightly tap the switch
to open the window
slightly. The express-down feature can be interrupted at
any time by pressing the up arrow end
of the switch.
Lockout Switch
Your vehicle has a lockout feature to prevent passengers
from operating power windows. It is located on the
driver’s door. Press
LOCK to activate this feature. Press
NORM to have the windows return to normal operation.
Horn
To sound the horn, press the horn symbols on the
steering wheel pad.
2-29
ProCarManuals.com

Tilt Wheel
You should adjust the tilt
steering wheel before
you drive.
Turn Signal/Multifunction Lever
You can raise it to the highest level to give your legs
more room when
you enter and exit the vehicle.
To tilt the wheel, hold the steering wheel and pull the
lever toward
YOU. Move the steering wheel to a
comfortable level, then release the lever to lock the
wheel in place.
Do not adjust the steering wheel while driving. The
lever on the left side
of the steering column
includes your:
0 Turn Signal and Lane Change Indicator
Headlamp High/Low Beam Changer
Windshield Wipers
0 Windshield Washer
0 Cruise Control
2-30
ProCarManuals.com

CAUTION:
0
0
Cruise control can be dangerous where you
can’t drive safely
at a steady speed. So,
don’t use your cruise control on winding
roads
or in heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast changes
in tire traction can cause needless wheel
spinning, and you could lose control. Don’t
use cruise control on slippery roads.
I ,A CAUTION: I
If you leave your cruise control switch on when
you’re not using cruise, you might hit a button
and go into cruise when
you don’t want to. You
could be startled and even lose control. Keep the
cruise control switch off until you want to use it.
1. Move the cruise control switch to ON.
2. Get up to the speed you want.
3. Press in the SET button
at
the end of the lever
and release it.
4. Take your foot off the accelerator pedal.
2-34
ProCarManuals.com

Rotate the knob to the right to the master lamps symbol
to turn on all the lamps listed as well as
the headlamps.
Rotate the
knob all the way to the left to turn off your
lamps and put the system in automatic headlamp mode.
Automatic Headlamp System
When it is dark enough outside, your automatic
headlamp system will turn on your headlamps at the
normal brightness along with other lamps such as the
taillamps, sidemarker, parking lamps and the instrument
panel lights. The radio lights will also be dim.
Your vehicle is equipped with High Intensity Discharge
(€€ID) headlamps. Your headlamps come on at lower
intensity and gradually increase to full brightness.
Your vehicle is equipped with
a light sensor on the top
of the instrument panel under the radio speaker grille,
so
be sure it is not covered, which will cause the system to
be on whenever the ignition is on.
The system may also turn on your headlamps when
driving through a parking garage, heavy overcast
weather, a tunnel or fueling your vehicle in a low-light
area. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running Lamps
(DRL) and the automatic headlamp systems
so that driving under bridges or bright overhead street lights
does not affect the system. The DRL and automatic
headlamp system will only be affected when the light
sensor
sees a change in lighting lasting longer than
the delay.
To idle your vehicle with the automatic headlamp
system
off, set the parking brake while the ignition is
off. Then start your vehicle. The automatic headlamp
system will stay off until you release the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Lamps On Reminder
A reminder chime will sound when your headlamps or
parking lamps
are manually turned on and your ignition
is in
OFF, LOCK or ACCESSORY. To disable the
chime, rotate the thumb wheel all the way down. In
the
automatic mode, the headlamps turn off once the
ignition key is in
OFF,
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short periods after dawn and before sunset.
2-37
ProCarManuals.com

Interior Lamps
Brightness Control
Rotate the thumbwheel next to the headlamp switch up
to make your instrument panel lights brighter. Turn the
switch all the way up to turn
on the interior lamps.
Front Reading Lamp?
Press the button near each lamp on the overhead console
to turn the reading lamps
on and off. The lamps can be
swiveled to point in the desired direction.
If you have the
mini console, press the lens on each
lamp
to turn it on or off.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove
the key from the ignition. These lights will
stay
on for a short period of time and then will go out.
Illuminated Entry
Your vehicle is equipped with an illuminated entry feature.
When the doors are opened, the dome lamps will come
on if the DOME OVERRIDE button is out. When all the
doors are closed, or the front door handles are lifted and
released, the lamps will stay
on for a short period of
time and will then go
out. If the dome lamp button is
pressed in, the lamps will
go out immediately.
Dome Lamps
The dome lamps will come on when you open the doors.
You can
also turn the dome lamps on by rotating the
thumbwheel, located next to the parking/headlamps
knob, all the way
LIP. In this position, the dome lamps
will remain on whether the doors are opened or closed.
2-39
ProCarManuals.com