ECO mode GMC ENVOY DENALI 2007 User Guide

9(Off):Press this button to turn off the entire
climate control system. Outside air will still
enter the vehicle, and will be directed to the oor.
Press the AUTO button, the mode button, the
fan arrows, or either temperature knob to turn the
system on.
C(Mode):Press this button to manually select
the air delivery mode to the oor, instrument panel,
or windshield outlets. The system will stay in the
selected mode until the mode button is pressed
again or the AUTO button is pressed.
Driver’s Side Temperature Knob:Turn this knob
clockwise or counterclockwise to raise or lower
the temperature on the driver’s side of the vehicle.
The display will show the temperature setting
decreasing or increasing and an arrow pointing
toward the driver. This knob can also adjust
the passenger’s side temperature setting if the
two are linked.
Passenger’s Side Temperature Knob:Turn this
knob clockwise or counterclockwise to manually
raise or lower the temperature on the passenger’s
side of the vehicle. The display will show the
temperature setting decreasing or increasing and
an arrow pointing toward the passenger.The passenger’s temperature setting can be set to
match and link to the driver’s temperature
setting by pressing and holding the AUTO button
for three seconds. When adjusting the driver’s
side temperature setting, the passenger’s
side temperature setting will follow and both
arrows will appear on the display. The passenger’s
side temperature setting also resets and relinks
to the driver’s side temperature setting if the
vehicle has been off for more than three hours.
Outside Air Temperature Display
A new outside temperature reading will be
displayed if the vehicle has been off for more than
three hours. If the vehicle has been off for less
than three hours, the old temperature reading may
be displayed because underhood heat is
affecting the true outside temperature. Underhood
heat can also affect the outside temperature
while the engine is running. It may also take
several minutes of driving before the display
updates to the actual outside temperature.
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Automatic Operation
AUTO (Automatic):When automatic operation
is active, the system will control the inside
temperature, the air delivery mode, and the
fan speed.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the air conditioning
operation and air outlet mode will be
automatically controlled. The air conditioning
compressor will run continuously when
the outside temperature is over approximately
40°F (4°C). The air inlet will normally be
set to outside air. If it’s hot outside, the air inlet
will automatically switch to recirculate inside
air to help quickly cool down your vehicle.
2. Set the driver’s and passenger’s temperature.
To nd your comfort setting, start with a 72°F
(22°C) temperature setting and allow about
20 minutes for the system to adjust. Turn the
driver’s or passenger’s side temperature knob
to adjust the temperature setting as necessary.If you choose the temperature setting of 60°F
(15°C), the system will remain at the maximum
cooling setting. If you choose the temperature
setting of 90°F (32°C), the system will remain at
the maximum heat setting. Choosing either
maximum setting may not cause the vehicle to
heat or cool any faster.
Manual Operation
To change the current setting, select one of the
following:
w9x(Fan):This button allows you to manually
adjust the fan speed. Press the up arrow to
increase fan speed and the down arrow to
decrease fan speed. The display will change to
show you the selected fan speed and the driver’s
side temperature setting for ve seconds.
C(Mode):Press this button to manually change
the direction of the airow in your vehicle. Keep
pressing the button until the desired mode appears
on the display. The display will change to show
you the selected air delivery mode and the driver’s
temperature setting for ve seconds.
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Rear Climate Control System
Your vehicle has one of the following rear climate
control systems. With either of these systems,
the rear climate controls will be disabled when the
front climate control system is in defrost. This
occurs to provide maximum airow to clear
the windshield.The temperature of the air coming through the
rear outlets is determined by the front passenger’s
temperature setting. Use the mode knob to
change the direction of airow (upper, bi-level or
oor) to the rear seat area.
PWR (Power):Press this button to turn the rear
climate controls on or off.
H(Panel):When panel mode is selected,
the rear system will distribute air from the
four headliner outlets.
)(Bi-level):When bi-level mode is selected,
the rear system will distribute air from the
four headliner outlets, the second seat side oor
outlets, and the third seat oor outlet.
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6(Floor):When oor mode is selected, the rear
system will distribute air from the second seat
side oor outlets and the third seat oor outlet.
If your vehicle has the rear seat audio system, the
lower buttons are used to adjust the rear seat
climate control system. The temperature of the air
coming through the rear outlets is determined
by the front passenger’s temperature setting.P(On/Off):Press this button to turn the rear
climate controls on or off.
z9 y(Fan):Press this button to adjust the
fan speed.
z\y(Mode):Press this button to change the
direction of airow (panel, bi-level or oor) to
the rear seat area.
The rear control will only turn on if the front is on
and not in defrost mode.
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Charging System Light
The charging system
light will come on briey
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.
Voltmeter Gage
When your engine is not
running, but the ignition
is in RUN, this gage
displays the battery
voltage in DC volts.
When the engine is running, the gage shows the
condition of the charging system. The gage
may transition from a higher to lower or a lower to
higher reading, this is normal. Readings between
the low and high warning zones indicate the
normal operating range. The voltmeter gage may
also read lower when in fuel economy mode.
This is normal.
205

Change Engine Oil Light
Your vehicle may
have a change
engine oil light.
When this light comes on it means that an oil
change and other maintenance procedures
are required for your vehicle.
SeeScheduled Maintenance on page 507and
Engine Oil on page 394for more information.
Once the engine oil has been changed, the change
engine oil light must be reset. Until it is reset,
the light will stay on when the engine is on.
Security Light
This light will come on
briey when you turn
the key toward START.
The light will stay on until the engine starts. If the
light ashes, the Passlock
®system has entered
a tamper mode. If the vehicle fails to start,
seePasslock
®on page 111.
If the light comes on continuously while driving
and stays on, there may be a problem with
the Passlock
®system. Your vehicle will not be
protected by Passlock®, and you should see
your dealer.
Also, seeContent Theft-Deterrent on page 110for
additional information regarding the security light.
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To reset TRIP A or TRIP B information, press and
hold the select button for one second while in
one of the trip modes. This will reset the
information for TRIP A or TRIP B.
You can also reset the TRIP A or TRIP B while they
are displayed by pressing the reset stem on the
cluster. If you press and hold the reset stem or the
select button for more than four seconds, the
display will show the distance traveled since the last
ignition cycle for TRIP A or TRIP B.
Tire Pressures:Press the trip information button
until TIRE PRESSURES appears on the display.
This mode shows the tire pressure in pounds
per square inch (psi) or kilopascals (kPa). Press
the select button to scroll through the following
information:
LF TIRE shows the tire pressure for the front
driver’s side tire.
RF TIRE shows the tire pressure for the front
passenger’s side tire.
LR TIRE shows the tire pressure for the rear
driver’s side tire.
RR TIRE shows the tire pressure for the rear
passenger’s side tire.Timer:The DIC can be used as a timer. Press
the select button while TIMER is displayed to start
the timer. The display will show the amount of
time that has passed since the timer was
last reset, not including time the ignition is off.
Time will continue to be counted as long as
the ignition is on, even if another display is being
shown on the DIC. The timer will record up to
99 hours, 59 minutes and 59 seconds (99:59:59)
after which the display will roll back to zero.
To stop the counting of time, press the select
button briey while TIMER is displayed.
To reset the timer to zero, press and hold the
select button while TIMER is displayed.
Fuel Information Button
t
(Fuel Information):Press the fuel information
button to scroll through the range, fuel used,
average fuel economy, and the engine oil
life system.
Fuel Range:Press the fuel information button until
RANGE appears on the display. This mode shows
the remaining distance you can drive without
refueling. It is based on fuel economy and the fuel
remaining in the fuel tank. The display will show
LOW if the fuel level is low.
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The fuel economy data used to determine fuel
range is an average of recent driving conditions.
As your driving conditions change, this data is
gradually updated. Fuel range cannot be reset.
Fuel Used:Press the fuel information button until
FUEL USED appears on the display. This mode
shows the number of gallons or liters of fuel used
since the last reset of this menu item. To reset
the fuel used information, press and hold the select
button for one second while FUEL USED is
displayed.
Average Fuel Economy:Press the fuel
information button until AVG. ECON appears on
the display. This mode shows how many miles per
gallon (MPG), liters per 100 kilometers (L/100 km),
or kilometers per liter (km/L) your vehicle is
getting based on current and past driving
conditions.
Press and hold the select button for one second
while AVG. ECON is displayed to reset the
average fuel economy. Average fuel economy will
then be calculated starting from that point.
If the average fuel economy is not reset, it will be
continually updated each time you drive.Engine Oil Life System:Press the fuel
information button until ENGINE OIL LIFE appears
on the display. The engine oil life system shows
an estimate of the oil’s remaining useful life. It will
show 100% when the system is reset after an
oil change. It will alert you to change your oil on a
schedule consistent with your driving conditions.
Always reset the engine oil life system after an oil
change. To reset the engine oil life system, see
Engine Oil Life System on page 398.
In addition to the engine oil life system monitoring
the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. SeeEngine Oil on page 394and
Scheduled Maintenance on page 507.
Customization Button
4
(Customization):Press the customization
button to access the VEHICLE SETTINGS menu
and customize the settings to your vehicle.
SeeDIC Vehicle Customization on page 229for
more information.
221

SERVICE AIR BAG
This message displays if there is a problem with
the airbag system. Have your dealer inspect
the system for problems. SeeAirbag Readiness
Light on page 201andAirbag System on page 71
for more information. Press any of the DIC
buttons, or the trip stem, to acknowledge this
message and clear it from the DIC display.
SERVICE BRAKE SYSTEM
This message displays if a problem occurs with
the brake system. If this message appears, stop as
soon as possible and turn off the vehicle. Restart
the vehicle and check for the message on the
DIC display. If the message is still displayed, or
appears again when you begin driving, the
brake system needs service. See your dealer.
SERVICE CHARGING SYS (System)
This message displays if there is a problem with the
battery charging system. Under certain conditions,
the charging system light may also turn on in the
instrument panel cluster. SeeCharging System
Light on page 205. The battery will not be charging
at an optimal rate and the vehicle will lose the ability
to enter the fuel economy mode. The vehicle is safe
to drive, however you should have the electrical
system checked by your dealer. Press any of the
DIC buttons, or the trip stem, to acknowledge this
message and clear it from the DIC display.
SERVICE STABILITRAK
If this message displays, it means there may be a
problem with the StabiliTrak®system. If this
message appears, try to reset the system by
performing the following: stop; turn off the engine;
then start the engine again. If this message still
comes on, it means there is a problem. You should
see your dealer for service. The vehicle is safe to
drive, however, you do not have the benet of
StabiliTrak
®, so reduce your speed and drive
accordingly. Press any of the DIC buttons, or the
trip stem, to acknowledge this message and clear it
from the DIC display.
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There are several conditions that can cause this
message to appear.
The message may display if the brake system
warning light is on. SeeBrake System
Warning Light on page 206.
The message displays if the vehicle is shifted
into 4LO.
The message turns off as soon as the conditions
that caused the message to be displayed are
no longer present.
TIGHTEN FUEL CAP
This message may display and a chime may sound
if the vehicle’s fuel cap is not tightened properly.
Fully reinstall the fuel cap. SeeFilling the Tank on
page 385. The diagnostic system can determine if
the fuel cap has been left off or improperly installed.
A loose or missing fuel cap allows fuel to evaporate
into the atmosphere. This message remains on until
it is acknowledged and cleared from the DIC display
by pressing any of the DIC buttons or the trip stem.
The DIC message is also cancelled if the ignition is
turned off.The DIC message and the Service Engine Soon
light may come on again during a second trip if the
fuel cap is still not tightened properly. See
Malfunction Indicator Lamp on page 210for
more information.
TRACTION CONTROL OFF
This message displays when you momentarily
press the StabiliTrak®button located on the
transmission shift handle. In this mode, stability
control and the brake-traction control are
functional. Engine speed management will be
modied and the driven wheels can spin more
freely. For more details on this mode, see
StabiliTrak
®System on page 309.
TURN SIGNAL ON
This message displays and a chime sounds if a
turn signal is left on for 3/4 of a mile (1.2 km).
Move the turn signal/multifunction lever to the off
position. Press any of the DIC buttons, or the
trip stem, to acknowledge this message and clear
it from the DIC display.
228