ECO mode CHEVROLET TAHOE 2008 3.G Owner's Manual

Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
H(Vent):This setting directs the air through the
headliner outlets.
)(Bi-Level):Air is delivered through the oor outlets
as well as the headliner outlets. The rear system
oor outlets are located directly behind the second row
seats. The ow can be divided between vent and
oor outlets depending upon where the knob is placed
between the settings.
6(Floor):This setting directs most of the air through
the oor outlets. The rear system oor outlets are
located directly behind the second row seats.
Rear Air Conditioning and Heating
System and Electronic Climate
Controls
For vehicles with the rear heat and air conditioning
controls, they are integrated with the rear seat audio
controls located in the center console. The system can
be controlled from the front controls as well as the
rear controls.
To turn the system on, press the AUX button on the
front climate control system, an indicator will be
lit. Pressing the AUX button the rst time will turn the
rear system on in a mimic mode. In this mode, the
airow in the rear will be approximately the same
direction, temperature, and fan speed as the front.
Pressing the AUX button again turns the rear system
and the indicator off.
If the rear controls are adjusted, the system enters a
rear independent mode. Airow in the rear will then
be directed according to the settings of rear controls.
The rear system can be turned off by pressing the
AUX button on the front climate control system and the
indicator will turn off.
If the indicator in the front AUX button is off, the rear
system is off.
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Instrument Panel Cluster
Your instrument cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you
are going, about how much fuel you have and many other things you will need to know to drive safely and economically.
If your vehicle is a Two-mode Hybrid, see the Two-mode Hybrid manual for more information.United States 4-Speed version shown. 6-Speed and Canada similar.
3-35

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 3-59
for 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.
Voltmeter Gage
When your engine is not
running, but the ignition is
on, this gage shows
the battery’s state of
charge in DC volts.
When the engine is running, the gage shows the
condition of the charging system. The charging system
regulates voltage based on the state of the battery
for improved fuel economy and battery life. 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 gage may also read low during the fuel
economy mode, this is normal.
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designed to evaluate critical emission control systems
during normal driving. This can take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your dealer/retailer can prepare the
vehicle for inspection.
Oil Pressure Gage
The oil pressure gage shows the engine oil pressure
in psi (pounds per square inch) when the engine
is running. Canadian vehicles indicate pressure in
kPa (kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.When the oil pressure reaches the low pressure zone,
the OIL PRESSURE LOW STOP ENGINE message
will appear in the Driver Information Center (DIC).
SeeDIC Warnings and Messages on page 3-59and
Engine Oil on page 5-17for more information.
A reading in the low pressure zone may be caused
by a dangerously low oil level or some other problem
causing low oil pressure. Check your oil as soon
as possible.
{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would not
be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid manual for more information. United States
Canada
3-47

Fuel Used
Press the trip/fuel button until FUEL USED displays.
This display shows the number of gallons (gal) or
liters (L) of fuel used since the last reset of this menu
item. To reset the fuel used information, press and hold
the set/reset button while FUEL USED is displayed.
Timer
Press the trip/fuel button until TIMER displays. This
display can be used as a timer.
To start the timer, press the set/reset button while
TIMER is displayed. 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
return to zero.
To stop the timer, press the set/reset button briey while
TIMER is displayed.
To reset the timer to zero, press and hold the set/reset
button while TIMER is displayed.
Transmission Temperature
Press the trip/fuel button until TRANS TEMP displays.
This display shows the temperature of the automatic
transmission uid in either degrees Fahrenheit (°F) or
degrees Celsius (°C).
Instantaneous Economy and Active Fuel
Management™ Indicator
If your vehicle has this display, press the trip/fuel button
until INST ECONOMY V8 MODE displays. This
display shows the current fuel economy at a particular
moment and will change frequently as driving conditions
change. This display shows the instantaneous fuel
economy in miles per gallon (mpg) or liters per
100 kilometers (L/100 km). Unlike average economy,
this screen cannot be reset.
An Active Fuel Management™ indicator will display on
the right side of the DIC, while INST ECONOMY displays
on the left side. Active Fuel Management™ allows the
engine to operate on either four or eight cylinders,
depending on your driving demands. When Active Fuel
Management™ is active, V4 MODE will display on the
DIC. When Active Fuel Management™ is inactive,
V8 MODE will display. SeeActive Fuel Management™
on page 2-29for more information.
Blank Display
This display shows no information.
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If the tire pressure display shows dashes instead of a
value, there may be a problem with your vehicle. If this
consistently occurs, see your dealer/retailer for service.
Engine Hours
Press the vehicle information button until ENGINE
HOURS displays. This display shows the total number
of hours the engine has run.
Relearn Remote Key
This display allows you to match Remote Keyless
Entry (RKE) transmitters to your vehicle. To match
an RKE transmitter to your vehicle:
1. Press the vehicle information button until
PRESS
VTO RELEARN REMOTE KEY displays.
2. Press the set/reset button until REMOTE KEY
LEARNING ACTIVE is displayed.
3. Press and hold the lock and unlock buttons on
the rst transmitter at the same time for about
15 seconds.
On vehicles with memory recall seats, the
rst transmitter learned will match driver 1 and the
second will match driver 2.
A chime will sound indicating that the transmitter
is matched.4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of eight
transmitters matched to it.
5. To exit the programming mode, you must cycle
the key to LOCK/OFF.
Blank Display
This display shows no information.
DIC Operation and Displays
(Without DIC Buttons)
If your vehicle does not have DIC buttons, the
information below explains the operation of this system.
The DIC has different displays which can be accessed
by pressing the trip odometer reset stem located on the
instrument panel cluster. Pressing the trip odometer
reset stem will also turn off, or acknowledge, DIC
messages.
The DIC displays trip and vehicle system information,
and warning messages if a system problem is detected.
If your vehicle does not have DIC buttons, you can
use the trip odometer reset stem to view the following
displays: odometer, engine hours, trip odometer, oil life,
Remote Keyless Entry (RKE) transmitter programming,
and display language.
3-56

Oil Life
To access this display, the vehicle must be in PARK (P).
Press the trip odometer reset stem until OIL LIFE
REMAINING displays. This display shows an estimate
of the oil’s remaining useful life. If you see 99% OIL LIFE
REMAINING on the display, that means 99% of the
current oil life remains. The engine oil life system
will alert you to change the oil on a schedule consistent
with your driving conditions.
When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on the display.
See “CHANGE ENGINE OIL SOON” underDIC
Warnings and Messages on page 3-59. You should
change the oil as soon as you can. SeeEngine Oil on
page 5-17. In addition to the engine oil life system
monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. SeeScheduled Maintenance on page 6-4for
more information.
Remember, you must reset the OIL LIFE display
yourself after each oil change. It will not reset itself.
Also, be careful not to reset the OIL LIFE display
accidentally at any time other than when the oil has just
been changed. It cannot be reset accurately until the
next oil change. To reset the engine oil life system,
seeEngine Oil Life System on page 5-20.
Relearn Remote Key
To access this display, the vehicle must be in PARK (P).
This display allows you to match Remote Keyless
Entry (RKE) transmitters to your vehicle. To match an
RKE transmitter to your vehicle:
1. Press the trip odometer reset stem until RELEARN
REMOTE KEY displays.
2. Press and hold the trip odometer reset stem for
three seconds.
The message REMOTE KEY LEARNING ACTIVE
will display.
3. Press and hold the lock and unlock buttons on
the rst transmitter at the same time for about
15 seconds.
On vehicles with memory recall seats, the rst
transmitter learned will match driver 1 and
the second will match driver 2.
A chime will sound indicating that the transmitter
is matched.
4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of eight
transmitters matched to it.
5. To exit the programming mode, you must cycle
the key to LOCK/OFF.
3-58

Language
This display allows you to select the language in which
the DIC messages will appear. To select a language:
1. Press the trip odometer reset stem until
ODOMETER displays.
2. While in the ODOMETER display, press and hold
the trip odometer reset stem for three seconds until
the currently set language displays.
3. Continue to press and hold the trip odometer reset
stem to scroll through all of the available languages.
The available languages are ENGLISH (default),
FRANCAIS (French), ESPANOL (Spanish),
and NO CHANGE.
4. Once the desired language is displayed, release
the trip odometer reset stem to set your choice.
DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct
the condition. Multiple messages may appear one after
another.Some messages may not require immediate action, but
you can press any of the DIC buttons on the instrument
panel or the trip odometer reset stem on the instrument
panel cluster to acknowledge that you received the
messages and to clear them from the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These messages
require action before they can be cleared. You should
take any messages that appear on the display seriously
and remember that clearing the messages will only
make the messages disappear, not correct the problem.
The following are the possible messages that can be
displayed and some information about them.
If your vehicle is a Two-mode Hybrid, see the Two-mode
Hybrid manual for more information.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to be
changed. When you change the engine oil, be sure
to reset the CHANGE ENGINE OIL SOON message.
SeeEngine Oil Life System on page 5-20for information
on how to reset the message. SeeEngine Oil on
page 5-17andScheduled Maintenance on page 6-4for
more information.
3-59

CHECK TIRE PRESSURE
This message displays when the pressure in one or
more of the vehicle’s tires needs to be checked.
This message also displays LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate which
tire needs to be checked. You can receive more than
one tire pressure message at a time. To read the other
messages that may have been sent at the same
time, press the set/reset button or the trip odometer
reset stem. If a tire pressure message appears on the
DIC, stop as soon as you can. Have the tire pressures
checked and set to those shown on the Tire Loading
Information label. SeeTires on page 5-66,Loading the
Vehicle on page 4-35, andInflation - Tire Pressure
on page 5-74. The DIC also shows the tire pressure
values. See “DIC Operation and Displays (With
DIC Buttons)” earlier in this section. If the tire pressure
is low, the low tire pressure warning light comes on.
SeeTire Pressure Light on page 3-44.
DRIVER DOOR OPEN
This message displays and a chime sounds if the driver
door is not fully closed and the vehicle is in a drive
gear. 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.
ENGINE HOT A/C (Air Conditioning)
TURNED OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
SeeEngine Coolant Temperature Gage on page 3-43.
To avoid added strain on a hot engine, the air
conditioning compressor automatically turns off. When
the coolant temperature returns to normal, the air
conditioning compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your dealer/retailer as soon as possible
to avoid damage to the engine.
ENGINE OVERHEATED IDLE ENGINE
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. SeeEngine Overheating on page 5-34
for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle to
idle until it cools down. SeeEngine Coolant
Temperature Gage on page 3-43.
SeeOverheated Engine Protection Operating Mode on
page 5-36for information on driving to a safe place
in an emergency.
3-60

The DVD player is only compatible with DVDs of the
appropriate region code that is printed on the jacket of
most DVDs.
The DVD slot of the radio is compatible with most
audio CDs, CD-R, CD-RW, DVD-Video, DVD-Audio,
DVD-R/RW, DVD+R/RW media along with MP3
and WMA formats.
If an error message displays on the video screen or
the radio, see “DVD Display Error Messages” under,
Rear Seat Entertainment (RSE) System on page 3-105
and “DVD Radio Error Messages” in this section for
more information.
Playing a DVD
DVD/CD AUX (Auxiliary):Press this button to cycle
through DVD, CD, or Auxiliary when listening to the radio.
The DVD/CD text label and a message showing track or
chapter number displays when a disc is in either slot.
Press this button again and the system automatically
searches for an auxiliary input device, such as a portable
audio player. If a portable audio player is not connected,
“No Aux Input Device” displays. If a disc is in both the
DVD slot and the CD slot the DVD/CD AUX button cycles
between the two sources and does not indicate “No Aux
Input Device”. If a front auxiliary device is connected, the
DVD/CD AUX button cycles through all available options,
such as: DVD slot, CD slot, Front Auxiliary, and Rear
Auxiliary (if available). See “Using the Auxiliary InputJack(s)” later in this section, or “Audio/Video (A/V) Jacks”
under,Rear Seat Entertainment (RSE) System on
page 3-105for more information.
O(Power):Press to turn the radio on or off. Turn
clockwise or counterclockwise to increase or decrease
the volume. Press and hold for more than two seconds to
turn off the radio and Rear Seat Entertainment (RSE)
system, and to start the parental control feature. Parental
control prevents the rear seat occupant from operating
the Rear Seat Audio (RSA) system or remote control.
A lock symbol displays next to the clock display. The
parental control feature remains on until this knob is
pressed and held for more than two seconds again, or
until the driver turns the ignition off and exits the vehicle.
f(Tune):Turn to change tracks on a CD or DVD, to
manually tune a radio station, or to change clock or date
settings, while in the clock or date setting mode. See
the information given earlier in this section specic to the
radio, CD, and the DVD. Also, see “Setting the Clock”
in the index, for setting the clock and date.
©SEEK (Previous Track/Chapter):Press the left
arrow to return to the start of the current track or
chapter. Press the left arrow again to go to the previous
track or chapter. This button might not work when the
DVD is playing the copyright information or the previews.
3-90