coolant temperature GMC ENVOY DENALI 2007 Owners Manual

Keys.............................................................. 95
Remote Keyless Entry (RKE) System.......... 97
Remote Keyless Entry (RKE)
System Operation.................................... 98
Doors and Locks........................................ 100
Door Locks................................................ 100
Power Door Locks..................................... 101
Delayed Locking........................................ 102
Programmable Automatic Door Locks........ 102
Rear Door Security Locks......................... 105
Lockout Protection..................................... 105
Liftgate/Liftglass......................................... 106
Windows...................................................... 107
Power Windows........................................ 108
Sun Visors................................................ 109
Theft-Deterrent Systems............................. 110
Content Theft-Deterrent............................. 110
Passlock
®.................................................. 111
Starting and Operating Your Vehicle......... 112
New Vehicle Break-In................................ 112
Ignition Positions....................................... 113
Retained Accessory Power (RAP)............. 114Starting the Engine.................................... 114
Adjustable Throttle and Brake Pedal.......... 116
Engine Coolant Heater.............................. 116
Active Fuel Management™........................ 117
Automatic Transmission Operation............. 118
Four-Wheel Drive...................................... 122
Parking Brake........................................... 126
Shifting Into Park (P) ................................. 127
Shifting Out of Park (P)............................. 129
Parking Over Things That Burn................. 130
Engine Exhaust......................................... 131
Running the Engine While Parked............. 132
Mirrors......................................................... 133
Manual Rearview Mirror............................. 133
Manual Rearview Mirror with OnStar
®....... 133
Automatic Dimming Rearview Mirror
with OnStar
®and Compass................... 134
Automatic Dimming Rearview Mirror
with OnStar
®, Compass and
Temperature Display.............................. 136
Automatic Dimming Rearview Mirror
with Compass........................................ 138
Section 2 Features and Controls
93

Adjustable Throttle and Brake Pedal
If your vehicle has this feature, you can change the
position of the throttle and brake pedals. This
feature is designed for shorter drivers, since the
pedals cannot move farther away from the standard
position, but can move closer for better pedal reach.
If your vehicle has this feature, it can be
programmed to work with the memory function.
SeeMemory Seat, Mirrors, and Pedals on page 12.
The vehicle must be in PARK (P) for this feature
to operate.
The switch used to
adjust the pedals is
located on the steering
column.
Press the switch forward or backward to move the
pedals closer or farther away from you.
Engine Coolant Heater
Your vehicle may have an engine coolant heater.
In very cold weather, 0°F (−18°C) or colder,
the engine coolant heater can help. You will get
easier starting and better fuel economy during
engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your
vehicle. At temperatures above 32°F (0°C), use of
the coolant heater is not required. Your vehicle
may also have an internal thermostat in the
plug end of the cord. This will prevent operation of
the engine coolant heater when the temperature
is at or above 0°F (−18°C) as noted on the cord.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical
cord. The cord is located on the driver’s
side of the engine compartment next to the
battery box facing the engine.
3. Plug it into a normal, grounded 110-Volt AC
outlet.
116

{CAUTION:
Plugging the cord into an ungrounded
outlet could cause an electrical shock.
Also, the wrong kind of extension cord
could overheat and cause a re. You
could be seriously injured. Plug the cord
into a properly grounded three-prong
110-volt AC outlet. If the cord will not
reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it
away from moving engine parts. If you do
not, it could be damaged.How long should you keep the coolant heater
plugged in? The answer depends on the outside
temperature, the kind of oil you have, and
some other things. Instead of trying to list
everything here, we ask that you contact your
dealer in the area where you will be parking your
vehicle. The dealer can give you the best
advice for that particular area.
Active Fuel Management™
Your vehicle’s V8 engine may have Active Fuel
Management™. This system allows the engine to
operate on either all or half of its cylinders,
depending on your driving conditions.
When less power is required, such as cruising at a
constant vehicle speed, the system will operate
in the half cylinder mode, allowing your vehicle to
achieve better fuel economy. When greater
power demands are required, such as accelerating
from a stop, passing, or merging onto a freeway,
the system will maintain full-cylinder operation.
117

StabiliTrak®Service Light........................... 207
StabiliTrak®Indicator Light......................... 208
Engine Coolant Temperature Gage............ 208
Tire Pressure Light.................................... 209
Malfunction Indicator Lamp........................ 210
Oil Pressure Gage..................................... 213
Change Engine Oil Light........................... 214
Security Light............................................ 214
Cruise Control Light.................................. 215
Reduced Engine Power Light.................... 215
Highbeam On Light................................... 215
Service Four-Wheel Drive Warning Light ... 216
Check Gages Warning Light...................... 216
Gate Ajar Light.......................................... 216
Fuel Gage................................................. 217
Low Fuel Warning Light............................ 217
Check Gas Cap Light................................ 217
Driver Information Center (DIC).................. 218
DIC Operation and Displays...................... 219
DIC Warnings and Messages.................... 222
DIC Vehicle Customization........................ 229Audio System(s)......................................... 236
Setting the Time........................................ 238
Radio with CD (Base)............................... 238
Radio with CD (MP3)................................ 248
Radio with Six-Disc CD............................. 258
Using an MP3........................................... 271
XM Radio Messages................................. 277
Navigation/Radio System........................... 280
Rear Seat Entertainment System............... 280
Rear Seat Audio (RSA)............................. 295
Theft-Deterrent Feature............................. 296
Audio Steering Wheel Controls.................. 297
Radio Reception........................................ 298
Care of Your CDs and DVDs.................... 299
Care of the CD and DVD Player............... 299
Fixed Mast Antenna.................................. 299
XM™ Satellite Radio Antenna System....... 300
Chime Level Adjustment............................ 300
Section 3 Instrument Panel
166

Driver’s Side Temperature Lever:The lever on
the left side of the climate control panel is
used to raise or lower the temperature on the
driver’s side of the vehicle. Slide the lever up or
down to adjust the temperature.
Passenger’s Side Temperature Lever:The lever
on the right side of the climate control panel is
used to raise or lower the temperature on
the passenger’s side of the vehicle. Slide the lever
up or down to adjust the temperature. This lever
also adjusts the temperature to the rear seat
outlets.
When the temperature outside is 0°F (-18°C) or
lower, use the engine coolant heater, if the vehicle
has one, to provide warmer air, faster to your
vehicle.
#(Air Conditioning):Press this button to turn
the air-conditioning system on or off. When
the button is pressed, an indicator light will come
on and the system will begin to cool and
dehumidify the air inside of the vehicle. You may
notice a slight change in engine performance
when the air conditioning compressor shuts off and
turns on again. This is normal.
Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity (moisture) condensing on the cool window
glass. This can be minimized if the climate
control system is used properly. There are
two modes to choose from to clear fog or frost
from your windshield. Use the defog mode to clear
the windows of fog or moisture and warm the
passengers. Use the defrost mode to remove fog
or frost from the windshield more quickly.
Turn the right knob clockwise or counterclockwise
to select one of the following modes:
-(Defog):This mode directs the air to the oor
outlets, windshield and side window outlets.
The recirculation button cannot be selected while
in defog mode.
1(Defrost):This mode directs most of the air to
the windshield and the side window outlets, with
only a little air directed to the oor outlets. The air
conditioning compressor may run to dehumidify
the air to prevent window fogging. The recirculation
button cannot be selected while in defrost mode.
Do not drive the vehicle until all the windows
are clear.
188

StabiliTrak®Indicator Light
This warning light
should come on briey
when the engine is
started.
During most driving conditions, this light will not
come on. If the StabiliTrak
®System is actively
controlling the stability and/or traction of the
vehicle, this light will ash. This is normal.
This light will come on if any portion of the system
has been manually turned off or a problem is
detected in the system.
If your vehicle has a Driver Information Center, a
message will appear also, seeDIC Warnings
and Messages on page 222andStabiliTrak
®
System on page 309for more information.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the gage pointer moves into the red area, it
means that the 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.
SeeEngine Overheating on page 408for more
information.
United StatesCanada
208

Service Four-Wheel Drive
Warning Light
This light should come
on briey when you turn
on the ignition, as a
check to show you
it is working.
The service four-wheel drive light comes on to
indicate that there may be a problem with the drive
system and service is required. Malfunctions
can be indicated by the system before any problem
is apparent, which may prevent serious damage
to the vehicle. This system is also designed
to assist your dealer in correctly diagnosing a
malfunction.
Check Gages Warning Light
The check gages light
will come on briey
when you are starting
the engine.
If the light comes on and stays on while you are
driving, check your coolant temperature and
engine oil pressure gages to see if they are in the
warning zones.
Gate Ajar Light
If this light comes on,
the liftgate or liftglass is
not completely shut.
Close the liftgate or liftglass. Never drive with the
liftgate or liftglass even partially open.
216

ENGINE COOLANT HOT/ENGINE
OVERHEATED
Notice:If you drive your vehicle while the
engine is overheating, severe engine damage
may occur. If an overheat warning appears on
the instrument panel cluster and/or DIC, stop
the vehicle as soon as possible. Do not increase
the engine speed above normal idling speed.
SeeEngine Overheating on page 408for more
information.
This message displays and a chime sounds if the
cooling system temperature gets hot. See
Engine Overheating on page 408for the proper
course of action. This message clears when
the coolant temperature drops to a safe operating
temperature.
FUEL LEVEL LOW
This message displays and a chime sounds if the
fuel level is low in the vehicle’s fuel tank. Refuel as
soon as possible. Press any of the DIC buttons, or
the trip stem, to acknowledge this message and
clear it from the DIC display. SeeLow Fuel Warning
Light on page 217,Filling the Tank on page 385,
andFuel on page 382for more information.
ICE POSSIBLE
This message may display if the outside
temperature reaches a level where ice could form
on the roadway. If the temperature rises to a safe
level, the message clears. This message clears
itself after 10 seconds, or you can press any of the
DIC buttons, or the trip stem, to acknowledge this
message and clear it from the DIC display.
KEY FOB # BATTERY LOW
This message displays if a Remote Keyless Entry
(RKE) transmitter battery is low. Replace the
battery in the transmitter. See “Battery
Replacement” underRemote Keyless Entry (RKE)
System Operation on page 98. Press any of the
DIC buttons, or the trip stem, to acknowledge this
message and clear it from the DIC display.
LEFT REAR DOOR AJAR
This message displays and a chime sounds if the
driver’s side rear door is not fully closed. Stop and
turn off the vehicle, check the door for obstructions,
and close the door again. Check to see if the
message still appears on the DIC. Press any of the
DIC buttons, or the trip stem, to acknowledge this
message and clear it from the DIC display.
224

Turn Signals When Towing a Trailer
The arrows on your instrument panel will
ash whenever you signal a turn or lane change.
Properly hooked up, the trailer lamps will also
ash, telling other drivers you’re about to
turn, change lanes or stop.
When towing a trailer, the arrows on your
instrument panel will ash for turns even if the
bulbs on the trailer are burned out. Thus, you may
think drivers behind you are seeing your signal
when they are not. It’s important to check
occasionally to be sure the trailer bulbs are
still working.
Driving On Grades
Reduce speed and shift to a lower gearbefore
you start down a long or steep downgrade. If you
don’t shift down, you might have to use your
brakes so much that they would get hot and no
longer work well.
You can tow in DRIVE (D). You may want to shift
the transmission to THIRD (3) or a lower gear,
under heavy loads or hilly conditions.
When towing at high altitude on steep uphill
grades, consider the following: Engine coolant will
boil at a lower temperature than at normal
altitudes. If you turn your engine off immediately
after towing at high altitude on steep uphill grades,
your vehicle may show signs similar to engine
overheating. To avoid this, let the engine run while
parked (preferably on level ground) with the
automatic transmission in PARK (P) for a few
minutes before turning the engine off. If you do get
the overheat warning, seeEngine Overheating
on page 408.
372

Notice:Use of the incorrect automatic
transmission uid may damage your vehicle,
and the damages may not be covered by
your warranty. Always use the automatic
transmission uid listed inRecommended
Fluids and Lubricants on page 517.
After adding uid, recheck the uid level as
described under “How to Check Automatic
Transmission Fluid,” earlier in this section.
When the correct uid level is obtained, push
the dipstick back in all the way; then ip the
handle down to lock the dipstick in place.
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 408.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.
405