ECO mode GMC SIERRA CLASSIC 2007 Owner's Manual

Page 239 of 674

If you select recirculation while in defrost, defog,
or oor, the light in the button will ash and then go
out to let you know that this is not allowed. This
is normal and helps to prevent fogging.
When the weather is cool or damp, operating the
system in recirculation for extended periods of
time may cause fogging of the vehicle’s windows.
To clear the fog, select either defog or front
defrost.
You may also notice that the air condition
compressor will run while in recirculation mode.
This is normal and helps to prevent fogging.
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.
This direction can be changed by pressing the
mode button. The temperature can also be
adjusted using either temperature knob. Press the
up or down arrows on the fan switch, the defrost
button, the AUTO button, or the air conditioning
button to turn the system on when it is off.
Display
If you press the mode button to select an air
delivery mode, the display will change to show you
the selected air delivery mode. After ten seconds,
the display will change to show the driver
temperature setting and the selected mode.
If you press the up or down arrows on the fan
switch, the display will change to show the
selected fan speed. After ten seconds, the display
will change to show the driver temperature
setting and the selected mode.
Whenever you press AUTO, the display will
change to show the following:
The current driver’s set temperature and an
arrow for ve seconds
The current passenger’s set temperature
setting and an arrow for ve seconds
The automatic air delivery mode and fan speed
If the driver’s and passenger’s temperature
settings are the same when AUTO is pressed,
the temperature setting and both arrows will be
displayed for ve seconds along with the automatic
air delivery mode and fan speed. After the
ve second update, the display will change to show
the temperature setting, both arrows, and AUTO.
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Page 246 of 674

Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour
(km/h). Your odometer shows how far your vehicle
has been driven, in either miles (used in the
United States) or kilometers (used in Canada).
Engine Hour Meter Display
The Driver Information Center (DIC) can also
display the number of hours the engine has run.
To display the hour meter, turn the ignition
off, press and hold the reset button for at least
four seconds. The hour meter will be displayed for
up to 30 seconds, or until the ignition is turned
on. SeeDIC Operation and Displays on page 266
for more information.
Trip Odometer
The trip odometer can tell you how far your
vehicle has been driven since you last set the trip
odometer to zero.
Press the reset button, located on the instrument
panel cluster next to the trip odometer display,
to toggle between the trip odometer and the
regular odometer. Holding the reset button for
approximately one second while the trip odometer
is displayed will reset it.
To display the odometer reading with the ignition
off, press the reset button.
SeeDIC Operation and Displays on page 266for
more information.
Tachometer
Your tachometer displays the engine speed in
revolutions per minute (rpm). See “Grade Braking
(Allison Transmission
®)” underTow/Haul Mode
on page 147for more information.
Notice:If you operate the engine with the
tachometer in the solid red area, your vehicle
could be damaged. The damages would
not be covered by your warranty. Do not
operate the engine in the solid red area.
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Page 253 of 674

Battery Warning Light
If this light comes on
when the engine is
running, there could be
a problem with the
charging system.
The battery display will also stay on while the key
is in RUN until the engine is started.
If the light stays on after starting the engine it
could indicate a problem with the generator drive
belt, or some other charging system problem.
Have it checked right away. Driving while this light
is on could drain the battery.
If you must drive a short distance with this light
on, it helps to turn off all your accessories, such as
the radio and the air conditioner.
Voltmeter Gage
When the engine is not
running, but the ignition
is in RUN, this gage
shows your battery’s
state of charge in
DC volts.
While the engine is running, this 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.
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.
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Page 266 of 674

If your vehicle has an Allison Transmission®and
the shift lever is in the MANUAL MODE (M)
position, the DIC will display the current gear
range. The DIC will also display the gear range as
it is shifted up or down. For example, if the gear
range is currently set to 6, the DIC will display
(6)54321. When thegear range is shifted down
one time, the DIC will display 6 (5)4321. See
Automatic Transmission Operation on page 140for
more information.
3(Trip Information):Press this button to
display the odometer, trip odometers, timer, engine
hours, and selected range if your vehicle has an
Allison Transmission
®.
t(Fuel Information):Press this button to
display the current range, fuel used, average fuel
economy, and engine oil life.
4(Customization):Press this button to access
the vehicle settings menu and customize the
personal settings on your vehicle.
r(Select):Press this button to reset certain
DIC functions and set your customization settings.
Pressing any of the four DIC buttons will
acknowledge DIC messages and clear them from
the DIC display.
DIC Operation and Displays
The Driver Information Center (DIC) comes on
when the ignition is on. After a short delay, the DIC
will display the information that was last displayed
before the engine was turned off.
The DIC has different modes which can be
accessed by pressing the four DIC buttons located
on the steering wheel. These buttons are trip
information, fuel information, customization, and
select. The button functions are detailed in
the following pages.
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Page 267 of 674

Trip Information Button
3
(Trip Information):Press the trip
information button to scroll through the
ODOMETER, TRIP A, TRIP B, TIMER, ENGINE
HOURS, and SELECTED RANGE.
Odometer:Press the trip information button until
ODOMETER appears on the display. This
mode shows the total distance the vehicle has
been driven in either miles or kilometers. Pressing
the reset stem located on the instrument cluster
with the vehicle off will also display the odometer.
Trip A:Press the trip information button until
TRIP A appears on the display. This mode shows
the current distance traveled since the last
reset for TRIP A in either miles or kilometers.
Trip B:Press the trip information button
until TRIP B appears on the display. This mode
shows the current distance traveled since the last
reset for TRIP B in either miles or kilometers.
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 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 four seconds, the display
will show the distance traveled since the last
ignition cycle for TRIP A or TRIP B.
SeeTrip Odometer on page 246for more
information.
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.
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Page 268 of 674

Engine Hours:Press the trip information button
until ENGINE HOURS appears on the display.
This mode shows the total number of hours
the engine has run. Pressing and holding the reset
stem located on the instrument cluster for about
four seconds will also display the engine hour
information after the odometer is displayed when
the vehicle is off.
Selected Range:If your vehicle has an Allison
Transmission
®and the vehicle is in the MANUAL
MODE (M) position, press the trip information
button until SELECTED RANGE: M# appears on
the display. The DIC will display the current
gear range. For example, if the gear range is set
to 6, the DIC will display SELECTED RANGE: M6.
SeeAutomatic Transmission Operation on
page 140for more information.
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.
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) or liters per 100 kilometers
(L/100 km) your vehicle is getting based on
current and past driving conditions.
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Page 279 of 674

SERVICE CHARGING SYSTEM
On some vehicles, if there is a problem with the
battery charging system, this message will appear
on the DIC. Under certain conditions, the battery
warning light may also turn on in the instrument
panel cluster. SeeBattery Warning Light on
page 253. 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.
Pressing any of the four DIC buttons will
acknowledge the message and clear it from the
DIC display. If your vehicle does not have the four
DIC buttons, pressing the trip odometer reset
stem will acknowledge the message and clear it
from the DIC display.
TIGHTEN FUEL CAP
If the vehicle’s fuel cap is not tightened properly,
this message may appear along with the check
engine light on the instrument panel. See
Malfunction Indicator Lamp on page 258. Fully
reinstall the fuel cap. SeeFilling the Tank
on page 474. 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 and message off.
TRACTION ACTIVE
When the traction control system had detected
that any of the vehicle’s wheels are slipping,
the traction control system will activate and this
message will appear on the DIC. For more
information, seeTraction Assist System (TAS) on
page 363.
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Page 280 of 674

TRANSMISSION HOT
Notice:If you drive your vehicle while the
transmission uid is overheating and the
transmission temperature warning is displayed
on the instrument panel cluster and/or DIC,
you can damage the transmission. This could
lead to costly repairs that would not be
covered by your warranty. Do not drive your
vehicle with overheated transmission uid
or while the transmission temperature warning
is displayed.
If the transmission uid temperature becomes
high, this message will appear on the DIC display.
When the transmission enters the protection
mode, you may notice a change in the
transmission shifting patterns. When the
transmission uid temperature returns to normal,
the display will turn off and the transmission
shifting patterns will return to normal.If the vehicle has the Tow/Haul mode, use this
feature if the transmission is operating at higher
temperatures and/or the following situations
exist, which can cause the transmission to operate
at higher temperatures:
Towing a trailer
Hot outside air temperatures
Hauling a large or heavy load
Over-loading
Low transmission uid level
High transmission uid level
Restricted air ow to the radiator and the
auxiliary transmission oil cooler
A temporary solution to hotter transmission
operating temperatures may be to let the
transmission cool down. If the transmission is
operated at higher temperatures on a frequent
basis, seeScheduled Maintenance (Gasoline
Engine) on page 617for the transmission
your vehicle is equipped with for the proper
transmission maintenance intervals. Also see
Transmission Temperature Gage on page 257for
more information.
280

Page 288 of 674

Language
To select your preference for display language,
press the select button while LANGUAGE is
displayed on the DIC. Pressing the select button
will scroll through the following languages:
ENGLISH
FRANCAIS (French)
ESPANOL (Spanish)
Choose one of the available options and press the
customization button while it is displayed on the
DIC to select it.
If you accidentally choose a language that you do
not want or understand, press and hold the
customization button and the trip information
button at the same time. The DIC will begin
scrolling through the languages in their particular
language. English will be in English, Francais
will be in French and Espanol will be in Spanish.
When you see the language that you would
like, release both buttons. The DIC will then
display the information in the language you chose.
You can also scroll through the different languages
by pressing and holding the trip reset stem for four
seconds, as long as you are in the odometer mode.
Display Units
Press the customization button until DISPLAY
UNITS appears in the display. To select English or
metric, press the select button while DISPLAY
UNITS is displayed on the DIC. Pressing the select
button will scroll through the following choices:
DISPLAY UNITS: ENGLISH
DISPLAY UNITS: METRIC
If you choose English, all information will be
displayed in English units. For example, distance
in miles and fuel economy in miles per gallon.
If you choose metric, all information will be
displayed in metric units. For example, distance in
kilometers and fuel economy in liters per
100 kilometers.
Choose one of the available options and press the
customization button while it is displayed on the
DIC to select it and end out of the customizable
options.
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Page 290 of 674

While your vehicle is parked:
Familiarize yourself with all of its controls.
Familiarize yourself with its operation.
Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering
wheel controls if the vehicle has them.
Notice:Before adding any sound equipment
to your vehicle, such as an audio system,
CD player, CB radio, mobile telephone,
or two-way radio, make sure that it can be
added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be
added, it is very important to do it properly.
Added sound equipment may interfere with the
operation of your vehicle’s engine, radio, or
other systems, and even damage them.
Your vehicle’s systems may interfere with the
operation of sound equipment that has
been added.Notice:The chime signals related to safety
belts, parking brake, and other functions
of your vehicle operate through the
radio/entertainment system. If that equipment
is replaced or additional equipment is added
to your vehicle, the chimes may not work. Make
sure that replacement or additional equipment
is compatible with your vehicle before
installing it. SeeAccessories and Modifications
on page 468.
Your vehicle has a feature called Retained
Accessory Power (RAP). With RAP, the audio
system can be played even after the ignition
is turned off. SeeRetained Accessory Power
(RAP) on page 137for more information.
Setting the Time for Radios without
Radio Data Systems (RDS)
Press and hold HR (hour) until the correct hour
appears on the display. Press and hold MIN
(minute) until the correct minute appears on the
display. There is an initial two-second delay before
the clock goes into time-set mode. Display the
time with the ignition off, by pressing RCL (recall),
HR, or MIN.
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