lights GMC ENVOY 2008 User Guide

Instrument Panel Brightness
Press the knob located
next to the exterior lamps
knob to extend it.
Turn the knob to adjust the instrument panel lights. Turn
the knob all the way up to turn on the interior lamps.
Press the knob back into its stored position when
you are not using it.
Dome Lamps
The dome lamps will come on when you open a door
unless the dome lamp override is pressed in.
Dome Lamp Override
The dome override button
is located below the
exterior lamps knob.
To turn the dome lamps off, press the button. The dome
lamps will remain off when a door is open. This will
override the illuminated entry feature unless you use the
Remote Keyless Entry (RKE) transmitter to unlock the
vehicle.
To return the lamps to automatic operation, press the
button again. The dome lamps come on when a door is
opened.
3-17

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention
to your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As you
will see in the details on the next few pages, some
warning lights come on briey when you start the engine
just to let you know they’re working. If you are familiar
with this section, you should not be alarmed when
this happens.Gages can indicate when there may be or is a problem
with one of your vehicle’s functions. Often gages and
warning lights work together to let you know when there’s
a problem with your vehicle.
When one of the warning lights comes on and stays
on when you are driving, or when one of the gages
shows there may be a problem, check the section
that tells you what to do about it. Please follow this
manual’s advice.
Waiting to do repairs can be costly—and even
dangerous. So please get to know your warning
lights and gages. They’re a big help.
Your vehicle may also have a Driver Information
Center (DIC) that works along with the warning lights
and gages. SeeDriver Information Center (DIC)
on page 3-49.
3-30

If, after several seconds, both status indicator lights
remain on, or if there are no lights at all, there may
be a problem with the lights or the passenger sensing
system. See your dealer/retailer for service.
{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on,
it means that something may be wrong with
the airbag system. If this ever happens, have
the vehicle serviced promptly, because an
adult-size person sitting in the right front
passenger’s seat may not have the protection
of the airbag(s). SeeAirbag Readiness Light
on page 3-33for more on this, including
important safety information.
Charging System Light
This light will come on
briey when you turn on the
ignition key, 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 driving, there could be a problem
with the charging system. A charging system Driver
Information Center (DIC) message may also appear.
SeeDIC Warnings and Messages on page 3-53for
more information. This light could indicate that there
are problems with a generator drive belt, or that there is
an electrical problem. Have it checked right away. If you
must drive a short distance with the light on, be certain
to turn off all the accessories, such as the radio and air
conditioner.
3-36

Headlamp Delay
Press the customization button until HEADLAMP DELAY:
10 SEC appears in the display. To select your preference
for how long the headlamps will stay on after you turn off
the vehicle, press the select button while HEADLAMP
DELAY: 10 SEC is displayed on the DIC. Pressing the
select button will scroll through the following settings:
HEADLAMP DELAY: 10 SEC (Seconds) (default):
The headlamps will stay on for 10 seconds.
HEADLAMP DELAY: 20 SEC:The headlamps will stay
on for 20 seconds.
HEADLAMP DELAY: 40 SEC:The headlamps will stay
on for 40 seconds.
HEADLAMP DELAY: 1 MIN (Minute):The headlamps
will stay on for 1 minute.
HEADLAMP DELAY: 2 MIN:The headlamps will stay
on for 2 minutes.
HEADLAMP DELAY: 3 MIN:The headlamps will stay
on for 3 minutes.
HEADLAMP DELAY: OFF:The headlamps will not
turn on.
To select a setting and move on to the next feature,
press the customization button while the desired setting
is displayed on the DIC.
Perimeter Lights
Press the customization button until PERIMETER
LIGHTS: ON appears in the display. To select your
preference for perimeter lighting, press the select button
while PERIMETER LIGHTS: ON is displayed on the
DIC. Pressing the select button will scroll through
the following settings:
PERIMETER LIGHTS: ON (default):The headlamps
and back-up lamps will come on for 40 seconds, if
it is dark enough outside, when you unlock the vehicle
with the Remote Keyless Entry (RKE) transmitter.
PERIMETER LIGHTS: OFF:The perimeter lights will
not come on when you unlock the vehicle with the RKE
transmitter.
To select a setting and move on to the next feature,
press the customization button while the desired setting
is displayed on the DIC.
3-61

Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic. This is a
mistake. The brakes might not have time to cool between
hard stops. The brakes will wear out much faster if you
do a lot of heavy braking. If you keep pace with the traffic
and allow realistic following distances, you will eliminate a
lot of unnecessary braking. That means better braking
and longer brake life.
If your vehicle’s engine ever stops while you are driving,
brake normally but do not pump the brakes. If you do, the
pedal could get harder to push down. If the engine stops,
you will still have some power brake assist. But you will
use it when you brake. Once the power assist is used up,
it can take longer to stop and the brake pedal will be
harder to push.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 5-3.Antilock Brake System (ABS)
Your vehicle has the Antilock Brake System (ABS),
an advanced electronic braking system that will
help prevent a braking skid.
When you start the engine and begin to drive away,
ABS will check itself. You might hear a momentary
motor or clicking noise while this test is going on.
This is normal.
If there is a problem with
ABS, this warning light
will stay on. SeeAntilock
Brake System Warning
Light on page 3-39.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP problem,
both the brake and ABS warning lights come on
accompanied by a 10-second chime. The lights and
chime will come on each time the ignition is turned on
until the problem is repaired. See your dealer/retailer
for service.
4-4

The following chart describes the StabiliTrak®system events and the corresponding messages and lights that will be
displayed on the instrument panel cluster.
Vehicles with a DIC Vehicles without a DIC Event
StabiliTrak®
Indicator LightDIC MessageStabiliTrak
®
Indicator LightStabiliTrak
®Service
Light—
Off None Off OffStabiliTrak
®On
mode (System is fully
enabled, but is not
actively controlling
vehicle stability).
Solid Traction Control Off Solid OffTraction Control
Off Mode
Solid StabiliTrak
®Off Solid OffStabiliTrak
®Off Mode
(StabiliTrak®indicator
light will ash when
system rst enters
this mode).
Blinking StabiliTrak
®Active Blinking OffStabiliTrak
®system
activates using
engine speed
management, brake
traction control,
and/or stability
control.
Solid Service StabiliTrak
®Solid SolidStabiliTrak
®system is
disabled due to a
system fault.
SolidStabiliTrak
®Not
ReadySolid OffStabiliTrak®system is
disabled due to a
failure to initialize.
4-8

Notice:If the StabiliTrak®light comes on due to
heavy braking and/or because the traction control
system has been continuously active, do not allow
the wheel(s) of one axle to spin excessively. If you
do, you may be causing damage to the transfer case.
This could lead to costly repairs not covered by your
warranty.
Notice:If you allow the wheel(s) of one axle to spin
excessively while the StabiliTrak
®, ABS and brake
warning lights and the SERVICE STABILITRAK
message are displayed, you could damage the
transfer case. The repairs would not be covered by
your warranty. Reduce engine power and do not spin
the wheel(s) excessively while these lights and this
message are displayed.
StabiliTrak
®may activate on dry or rough roads or
under conditions such as heavy acceleration while
turning or abrupt upshifts/downshifts of the transmission.
When this happens, you may notice a reduction in
acceleration, or may hear a noise or vibration.
This is normal.If your vehicle is in cruise control when the system
activates, the StabiliTrak
®light will blink, and the
cruise control will automatically disengage. When
road conditions allow, you may re-engage the cruise
control. SeeCruise Control on page 3-11.
StabiliTrak
®will turn off automatically if a problem is
detected in the system. The StabiliTrak®light will come
on and SERVICE STABILITRAK will be displayed on
the DIC. For vehicles without a DIC, the StabiliTrak
®
light and the StabiliTrak®service light will both come on.
If the SERVICE STABILITRAK message (or StabiliTrak®
service light) does not clear itself after restarting the
vehicle, you should see your dealer for service.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modifications
on page 5-3for more information.
4-9

Surface Obstacles:Unseen or hidden obstacles can
be hazardous. A rock, log, hole, rut, or bump can startle
you if you are not prepared for them. Often these
obstacles are hidden by grass, bushes, snow, or even
the rise and fall of the terrain itself. Here are some things
to consider:
Is the path ahead clear?
Will the surface texture change abruptly up ahead?
Does the travel take you uphill or downhill? There is
more discussion of these subjects later.
Will you have to stop suddenly or change direction
quickly?
When you drive over obstacles or rough terrain, keep a
rm grip on the steering wheel. Ruts, troughs, or other
surface features can jerk the wheel out of your hands if
you are not prepared.
When you drive over bumps, rocks, or other obstacles,
the wheels can leave the ground. If this happens,
even with one or two wheels, you cannot control the
vehicle as well or at all.Because you will be on an unpaved surface, it is
especially important to avoid sudden acceleration,
sudden turns, or sudden braking.
In a way, off-road driving requires a different kind of
alertness from driving on paved roads and highways.
There are no road signs, posted speed limits, or signal
lights. You have to use your own good judgment
about what is safe and what is not.
Drinking and driving can be very dangerous on any
road. And this is certainly true for off-road driving.
At the very time you need special alertness and driving
skills, your reexes, perceptions, and judgment can be
affected by even a small amount of alcohol. You could
have a serious — or even fatal — accident if you drink
and drive or ride with a driver who has been drinking.
SeeDrunk Driving on page 4-2.
4-17

Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, seeEngine Overheating on
page 5-28.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL®coolant. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the
proper coolant mixture will. Your vehicle’s
coolant warning system is set for the proper
coolant mixture. With plain water or the wrong
mixture, your engine could get too hot but you
would not get the overheat warning. Your
engine could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
5-26

Lights............................................................3-14
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Loading Your Vehicle.......................................4-34
Locking Rear Axle............................................ 4-5
Lockout Protection..........................................2-11
Locks
Delayed Locking........................................... 2-8
Door........................................................... 2-7
Lockout Protection.......................................2-11
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-12
Low Fuel Warning Light...................................3-49
Luggage Carrier..............................................2-58
Lumbar
Manual Controls............................................ 1-3
Power Controls............................................. 1-4
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2Maintenance Schedule (cont.)
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Replacement Parts....................6-14
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-41
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Manual, Using.................................................... iii
Memory Seat, Mirrors, and Pedals...................... 1-5
Message
DIC Warnings and Messages........................3-53
Mirrors
Automatic Dimming Rearview with
Compass and Temperature Display.............2-44
Automatic Dimming Rearview with
OnStar
®and Compass..............................2-39
Automatic Dimming Rearview with OnStar®,
Compass and Temperature Display.............2-41
Manual Rearview Mirror................................2-39
Manual Rearview Mirror with OnStar
®.............2-39
Outside Convex Mirror.................................2-48
Outside Curb View Assist Mirror....................2-47
Outside Heated Mirrors................................2-48
8