2005 GMC ENVOY engine coolant

Keys...............................................................2-3
Remote Keyless Entry System.........................2-5
Remote Keyless Entry System Operation...........2-6
Doors and Locks.............................................2-8
Door Locks....................................................2-8
Delayed Locking.............................................2-9
Programmable Automatic Door Locks................2-9
Rear Door Security Locks..............................2-12
Lockout Protection........................................2-12
Liftgate/Liftglass............................................2-13
Windows........................................................2-14
Power Windows............................................2-15
Power Rear Quarter Windows........................2-16
Sun Visors...................................................2-16
Theft-Deterrent Systems..................................2-16
Content Theft-Deterrent.................................2-16
Passlock
®....................................................2-18
Starting and Operating Your Vehicle................2-18
New Vehicle Break-In....................................2-18
Ignition Positions..........................................2-19Retained Accessory Power (RAP)...................2-19
Starting Your Engine.....................................2-20
Adjustable Throttle and Brake Pedal................2-21
Engine Coolant Heater..................................2-21
Displacement on Demand (DoD).....................2-23
Automatic Transmission Operation...................2-23
Four-Wheel Drive..........................................2-26
Parking Brake..............................................2-30
Shifting Into Park (P).....................................2-31
Shifting Out of Park (P).................................2-33
Parking Over Things That Burn.......................2-33
Engine Exhaust............................................2-34
Running Your Engine While You Are Parked. . . .2-34
Mirrors...........................................................2-36
Manual Rearview Mirror.................................2-36
Manual Rearview Mirror with OnStar
®..............2-36
Manual Rearview Mirror with Compass............2-36
Manual Rearview Mirror with OnStar
®
and Compass...........................................2-39
Manual Rearview Mirror with Compass
and Temperature.......................................2-41
Section 2 Features and Controls
2-1

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. This feature can be
programmed to work with the memory function
(if equipped) on your vehicle. SeeMemory Seat on
page 2-60.
The vehicle must be in PARK (P) for this feature
to operate.
The toggle switch used to
adjust the pedals is located
on the steering column.
Press the switch towards you to move the pedals
closer. Press the switch away from you to move the
pedals away from you.
Engine Coolant Heater
Your vehicle has 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.
2-21

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, behind the battery.
3. Plug it into a normal, grounded 110-Volt AC outlet.
{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.
2-22

Displacement on Demand (DoD)
Your vehicle’s engine may be equipped with
Displacement on Demand (DoD). This system allows
the engine to operate on either four or eight cylinders,
depending on your driving demands.
The system determines when to switch into and out of
the four-cylinder mode by rst making sure that
certain enabling criteria are met, such as coolant and oil
temperatures, and the transmission being in either
THIRD (3) or FOURTH (4) gear.
When greater power demands are required, such as
accelerating from a stop, passing, or merging onto
a freeway, the system will maintain eight-cylinder
operation. When less power is required, such a cruising
at a constant vehicle speed, the system will
automatically enable the four-cylinder mode, allowing
your vehicle to achieve better fuel economy.
Automatic Transmission Operation
There are several different positions for your gear
shift lever.
2-23

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Rainsense™ Wipers.......................................3-9
Windshield Washer.......................................3-10
Headlamp Washer........................................3-11
Cruise Control..............................................3-11
Headlamps..................................................3-15
Headlamps on Reminder................................3-16
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-16
Fog Lamps..................................................3-17
Instrument Panel Brightness...........................3-18
Dome Lamps...............................................3-18
Dome Lamp Override....................................3-18
Entry Lighting...............................................3-19
Exit Lighting.................................................3-19
Reading Lamps............................................3-19
Battery Run-Down Protection..........................3-19Accessory Power Outlets...............................3-19
Ashtrays and Cigarette Lighter........................3-20
Climate Controls............................................3-21
Dual Climate Control System..........................3-21
Dual Automatic Climate Control System...........3-23
Outlet Adjustment.........................................3-28
Rear Climate Control System.........................3-28
Climate Controls Personalization.....................3-31
Warning Lights, Gages, and Indicators............3-32
Instrument Panel Cluster................................3-33
Speedometer and Odometer...........................3-34
Trip Odometer..............................................3-34
Tachometer.................................................3-34
Safety Belt Reminder Light.............................3-35
Passenger Safety Belt Reminder Light...............3-35
Airbag Readiness Light..................................3-36
Passenger Airbag Status Indicator...................3-37
Charging System Light..................................3-38
Voltmeter Gage............................................3-39
Brake System Warning Light..........................3-40
Anti-Lock Brake System Warning Light.............3-41
Engine Coolant Temperature Gage..................3-41
Malfunction Indicator Lamp.............................3-42
Section 3 Instrument Panel
3-1

Driver’s Side Temperature Knob: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 Knob: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 equipped, 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 your
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.
3-22

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. A chime may also
sound when the light
comes on.
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. SeeBrake System Warning Light on page 3-40
earlier in this section.
The anti-lock brake system warning light should come
on briey when you turn the ignition key to RUN. If
the light doesn’t come on then, have it xed 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, 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.
SeeEngine Overheating on page 5-28for
more information.
United StatesCanada
3-41

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, your
liftgate or liftglass is not
completely shut.
Close the liftgate or liftglass. Never drive with the liftgate
or liftglass even partially open.
3-49