service GMC ENVOY 1998 User Guide

Shifting from 4LO to 4HI or 2HI
To shift from 4LO to 4H1 or 2H1, your vehicle must be
stopped or moving less than
3 mph (4.8 kdh) with the
transmission in NEUTRAL
(N). The preferred method
for shifting out of 4LO is to have your vehicle moving
1 to 2 mph (1.6 to 3.2 kdh). Press and release the 4HI
switch.
You must wait for the 4H1 indicator light to stop
flashing and remain illuminated before shifting your
transmission into gear.
If the 4HI switch is pressed when your vehicle is in gear
and/or moving, the 4HI indicator light will flash for
30 seconds but not complete the shift unless the vehicle
is moving slower than 3 mph (4.8 kmh) and the
transmission
is in NEUTRAL (N).
If your transfer case does not shift into 4H1, your
transmission indicator switch may require adjustment.
With your transmission in NEUTRAL
(N), press and
release the 4HI switch. While the 4HI indicator light is
flashing, shift your transmission into PARK
(P). Wait
until the 4HI indicator light remains illuminated before
shifting your transmission into gear. This will get you
into 4H1, but you should take your vehicle
in for service
to restore normal operation.
Windows
Power Windows
The controls for the power windows are on each of the
side doors. The switches control
the windows when the
ignition is on or when Retained Accessory Power (RAP)
is present. (See “Retained Accessory Power” in the
Index.) The driver’s door has
a switch to control the
passenger windows as well.
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Inflating something too much can make it
explode, and
you or others could be injured. Be
sure to read the inflator instructions, and inflate
any object only to its recommended pressure.
To use your air inflator, attach the appropriate nozzle
adapter, if required, to the end of the hose.
Then attach that end of
the
hose to the object you wish
to inflate. Remove
the
protective cap covering the
outlet. Attach
the other end
of
the hose to the outlet.
Press the
ON switch.
If the air inflator system does not turn on, the fuse may
be blown
or installed incorrectly. See “Fuses and Circuit
Breakers”
in the Index or see your dealer for service.
Your air inflator will automatically shut off after about
10 minutes. To reset, press the ON switch again.
Don’t
run your air inflator for longer than 30 minutes at
one time.
If you do, you may damage the system. After
30 minutes, wait at least 10 minutes before restarting the
air inflator.
To turn off the air inflator, press OFF and detach the
hose, first from the inflated object, then from the outlet.
Replace the protective cap. Place the inflator kit tools
in
the pouch and store it properly.
To replace the cover, line up the tabs at the back of the
cover and put
it in place.
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This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and
(2) this device must accept any interference
received, including interference that may cause
undesired operation.
This device complies with
RSS-2 10 of Industry Canada.
Operation
is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference, including
interference that may cause undesired operation of
the device.
Changes and modifications to this system by other than
an authorized service facility could void authorization to
use this equipment.
Programming the Transmitter
Do not use the transmitter with any garage door opener
that does not have the “stop and reverse” feature. This
includes any garage door opener model manufactured
before April
1, 1982.
Be sure that pe~ple arid objects Lire clear of the garclge
door- you ~1-e Iwogmmning!
Your vehicle’s engine should be turned off while
programming the transmitter. Follow these steps to
program up to three channels:
1. If you have not previously programmed a universal
channel, proceed to Step
2. Otherwise, hold down
the two outside buttons
on the universal transmitter
until the red light begins to flash rapidly
(approximately
20 seconds). Then release the
buttons. This procedure initializes the memory and
erases any previous settings for all three channels.
2. Hold the end of the hand-held transmitter against the
bottom surface
of the universal transmitter so that
you can still see the red light.
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Erasing Ch; !lS
To erase all three programmed channels, hold down the
two outside buttons
until the red light begins to flash.
Individual channels cannot be erased, but can be
reprogrammed using the procedure for programming the
transmitter explained earlier.
Accessories
Accessories for the universal transmitter are available
from the manufacturer of
the unit. If you would like
additional information, please call
1-800-355-35 15.
Cellular Telephone (Option)
Your vehicle has been prewired for dealer installation of
a dual-mode (analog/digital) cellular telephone.
A fixed
mobile or a portable hand-held system is available.
Voice activation and hands-free operation are standard
features. For more information, contact your
GMC
dealer. A user’s guide is provided with the telephone.
Onstar@ System (Optional)
This system may be ordered if you have the optional
fixed cellular telephone. the following services are
available
24 hours a day:
0 Roadside Services with location
0 Emergency Services Button
Remote Door Unlock
0 Theft Detectionhlotification and Stolen-Vehicle
Tracking
0 Automatic Notification of Air Bag Deployment
ConciergeKustomer Convenience Services
For more information, contact your GMC dealer.
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Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows
the air bag symbol. The system
checks the air bag’s electrical system for malfunctions.
The light tells you
if there is an electrical problem. The
system check includes
the air bag sensors, the air bag
module, the wiring and the diagnostic module. For more
information
on the air bag system, see “Air Bag” in
the Index.
This light will come on
when you start your engine,
and
it will flash for a few
seconds. Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may
not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when
you turn the ignition key to RUN. If the
light doesn’t come
on then, have it fixed so it will be
ready to warn
you if there is a problem.
Charging System Indicator Light
The charging system light
will come on briefly when
you turn on the ignition, but
’ the engine is not running,
as a check to show you it
is working.
It should go out once the engine
is running. If it stays
on, or comes on while you are driving, you may have a
problem with the charging system.
It could indicate that
you have problems with
a generator drive belt, or
another electrical problem. Have
it checked right away.
Driving while this light
is on could drain your battery.
If you must drive a short distance with the light on, be
certain to turn off all your accessories, such as the radio
and air conditioner.
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Voltmeter Gage
I
When your engine is not
running, but the ignition is
on
(in RUN), this gage
shows your battery’s state of
charge in
DC volts.
When the engine is running,
the gage shows the
condition of
the charging system. Readings between the
low and high warning zones indicate the normal
operating range. Readings
in the low warning zone may occur when a
large number of electrical accessories are operating in
the vehicle and the engine is left at an idle for an
extended period. This condition
is normal since the
charging system
is not able to provide full power at
engine idle.
As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
You can only drive for a short time with the reading in
either warning zone. If you must drive, turn off all
unnecessary accessories.
Readings
in either warning zone indicate a possible
problem
in the electrical system. Have the vehicle
serviced as soon
as possible.
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Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The light
will stay on
if your parking brake doesn’t release fully.
If it stays on after your parking brake is fully released, it
means you have a brake problem.
If the light comes on while you are driving, pull off the
road and stop carefully.
You may notice that the pedal is
harder to push.
Or, the pedal may go closer to the floor.
It may take longer to stop.
If the light is still on, have the
vehicle towed for service. (See “Towing Your Vehicle”
in the Index.)
Your vehicle’s hydraulic brake system is divided into
two parts.
If one part isn’t working, the other part can
still work and stop you. For good braking, though, you
need both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.
This light should come
on
briefly when you turn the
ignition key to
RUN. If it
it fixed so it will be ready
to warn you if there’s
a problem.
(0) (8> doesn’t come on then, have
BRAKE
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident.
If the light is still on after you’ve
pulled off the road and stopped carefully, have
the vehicle towed for service.
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Anti-Lock Brake System Warning Light
With the anti-lock brake
system, this light will come
on when you start your
engine and may stay
on
for several seconds.
That’s normal.
If the light stays on, or comes on when you’re driving,
your vehicle needs service. If the regular brake system
warning light isn’t on,
you still have brakes, but you
don’t have anti-lock brakes. If the regular brake system
warning light is
also on, you don’t have anti-lock brakes
and there’s a problem with your regular brakes. See
“Brake System Warning Light” earlier
in this section.
The anti-lock brake system warning light should come
on briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready to warn you
if there is a problem.
Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature. If the
gage pointer moves into
the
red area, your engine is
too hot!
It means that your engine coolant has overheated. If you
have been operating your vehicle under normal driving
conditions,
you should pull off the road, stop your
vehicle and turn off
the engine as soon as possible.
The “Problems on the Road” section
of this manual
shows you what to do. See “Engine Overheating”
in
the Index.
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Malfunction Indicator Lamp
(Service Engine Soon Light)
SERVICE
ENGINE
SOON
United States Canada
Your
vehicle is equipped with a computer which
monitors operation of the fuel, ignition and emission
control systems.
This system
is called OBD I1 (On-Board
Diagnostics-Second Gene.ration) and
is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE SOON light
comes on to indicate that there is
a problem and service
is required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction.
a
a
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is
not
running. If the light doesn’t come on, have it repaired.
This light will also come on during
a malfunction in one
of two ways:
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service may be required.
Light On Steady -- An emission control system
malfunction has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may
be required.
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If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
Avoiding steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as soon
as it is possible.
If the light stops flashing and remains on steady, see
“If
the Light Is On Steady” following.
If
the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart the
engine. If the light remains on steady, see “If the Light
Is On Steady” following.
If the light is still flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put
fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine if the fuel
cap has been left off or improperly installed.
A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere.
A few driving trips with the cap properly
installed should turn the light off.
Did you just drive through a deep puddle of water?
If
so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out.
A few driving trips should turn the light off.
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