ECO mode HUMMER H3 2008 User Guide

Playing the Radio
P
(Power/Volume):Press to turn the system on
and off.
Turn clockwise or counterclockwise to increase or to
decrease the volume.
DISP (Display):Press to switch the display between
the radio station frequency and the time. When the
ignition is turned off, press to display the time.
For XM™ (if equipped), press the DISP button while in
XM™ mode to retrieve four different categories of
information related to the current song or channel: Artist,
Song Title, Category or PTY (program type), Channel
Number/Channel Name.
To change the default on the display, press the DISP
button until you see the desired display, then hold
this knob for two seconds. The radio produces one beep
and the selected display becomes the default.
AUTO VOL (Automatic Volume):With automatic
volume, the audio system adjusts automatically to make
up for road and wind noise as you drive.
Set the volume at the desired level. Press to select
LOW, MEDIUM, or HIGH. Each higher setting allows for
more volume compensation at faster vehicle speeds.
Then as you drive, automatic volume increases
the volume, as necessary, to overcome noise at anyspeed. The volume level should always sound the same
to you as you drive. NONE displays if the radio cannot
determine the vehicle speed. To turn automatic
volume off, press until AVOL OFF displays.
Finding a Station
BAND:Press to switch between FM1, FM2, AM, or
XM1 or XM2 (if equipped). The selection displays.
e(Tune):Turn to select radio stations.
tSEEKu:Press and release the arrows to go to
the next or to the previous station and stay there.
To scan stations, press and hold either arrow for more
than two seconds. SCN or SCAN displays and the
radio produces one beep. The radio goes to a station,
plays for a few seconds, then goes to the next
station. Press either arrow again or one of the
pushbuttons to stop scanning presets.
To scan preset stations, press and hold either arrow for
more than four seconds. PSC or PSCN displays and
the radio produces two beeps. The radio goes to
a preset station, plays for a few seconds, then goes to
the next preset station. Press either arrow again or
one of the pushbuttons to stop scanning presets.
The radio only seeks and scans stations with a strong
signal that are in the selected band.
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Finding a Category (CAT) Station
(XM™ Satellite Radio Service Only)
To select and nd a desired category perform the
following:
1. Press the CAT button to activate program type
select mode. A category displays.
2. Press the CAT button to select a category.
For the Radio with Six-Disc CD Player, turn the
eknob to select a category.
3. Once the desired category is displayed, press either
SEEK arrow to select and to take you to the
categories rst station.
4. To go to another station within that category and
the category is displayed, press the CAT button
once. If the category is not displayed, press the CAT
button twice to display the category and then to
go to another station.
For the Radio with Six-Disc CD Player, press
either SEEK arrow to go to another station within
that category and the category is displayed.
5. Press CAT to exit program type select mode.
If CAT times out and is no longer on the display, go
back to Step 1.If the radio cannot nd the desired program type, NONE
or NOT FOUND displays and the radio returns to the
last station you were listening to.
BAND (Alternate Frequency) (Radio with Single
CD):Alternate frequency allows the radio to switch
to a stronger station with the same category. To
turn alternate frequency on, press and hold BAND for
two seconds. AF ON displays. The radio can switch
to stations with a stronger frequency.
To turn alternate frequency off, press and hold BAND
again for two seconds. AF OFF displays. The radio does
not switch to other stations.
This function does not apply for XM™ Satellite Radio
Service.
Radio Messages
CAL ERR (Calibration Error):The audio system has
been calibrated for your vehicle from the factory. If
CAL ERR displays it means that the radio has not been
congured properly for your vehicle and it must be
returned to your dealer/retailer for service.
LOC (Locked):This message is displayed when the
THEFTLOCK
®system has locked up. Take your vehicle
to your dealer/retailer for service.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer/retailer.
3-53

To scan all loaded CDs, press and hold either arrow for
more than four seconds until CD SCAN displays and
a beep sounds. Use this feature to listen to 10 seconds
of the rst track of each loaded CD. Press either
arrow again, to stop scanning.
DISP (Display):Press to see how long the current
track has been playing. The elapsed time of the track
displays. To change the default on the display, track or
elapsed time, press until you see the desired display,
then hold for two seconds. The radio produces one beep
and the selected display becomes the default.
BAND:Press to listen to the radio when a CD is
playing. The inactive CD(s) remains inside the radio for
future listening.
B(CD):Press to play a CD while listening to the
radio. The CD symbol displays when a CD is loaded.
AUTO EQ (Automatic Equalization):Press to
select an equalization setting while playing a CD. The
equalization is set when a CD is played. See “AUTO
EQ” listed previously for more information. If you select
an EQ setting for your CD, it is activated each time
you play a CD.
Using Song List Mode (Radio with
Six-Disc CD Player)
R
(Song List):The six-disc CD changer has a
feature called song list. This feature is capable of saving
20 track selections.
To save tracks into the song list feature, perform the
following steps:
1. Turn the CD player on and load it with at least one
CD. See “LOAD CD” listed previously in this section
for more information.
2. Check to see that the CD changer is not in song list
mode. S-LIST should not display. If S-LIST is
present, press the
Rbutton to turn it off.
3. Select the desired CD by pressing the numbered
pushbutton and then use the right
uSEEK arrow
to locate the track to be saved. The track begins
to play.
4. Press and hold the
Rbutton to save the track
into memory. When this button is pressed,
one beep sounds. After two seconds of continuously
pressing this button, two beeps sounds to conrm
the track has been saved.
5. Repeat Steps 3 and 4 for saving other selections.
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S-LIST FULL displays if you try to save more than
20 selections.
To play the song list, press the
Rbutton. One beep
sounds and S-LIST displays. The recorded tracks begins
to play in the order they were saved.
Seek through the song list by using the SEEK arrows.
Seeking past the last saved track returns to the rst
saved track.
To delete tracks from the song list, perform the
following steps:
1. Turn the CD player on.
2. Press the
Rbutton to turn song list on. S-LIST
displays.
3. Press either SEEK arrow to select the desired track
to be deleted.
4. Press and hold the
Rbutton for two seconds.
When this button is pressed, one beep sounds.
After two seconds of continuously pressing
this button, two beeps sound to conrm that the
track has been deleted.
After a track has been deleted, the remaining tracks are
moved up the list. When another track is added to
the song list, the track is added to the end of the list.To delete the entire song list, perform the
following steps:
1. Turn the CD player on.
2. Press the
Rbutton to turn song list on. S-LIST
displays.
3. Press and hold the
Rbutton for more than
four seconds. One beep sounds, followed by
two beeps after two seconds, and a nal beep
sounds after four seconds. S-LIST EMPTY displays
indicating the song list has been deleted.
If a CD is ejected, and the song list contains saved
tracks from that CD, those tracks are automatically
deleted from the song list. Any tracks saved to the
song list again are added to the bottom of the list.
To end song list mode, press the
Rbutton. One beep
sounds and S-LIST is removed from the display.
3-59

To lock the rear axle, do the following:
1. Place the transfer case in the 4LO Lock mode. This
is the only mode which will allow the rear axle to
lock. SeeFull-Time Four-Wheel Drive on page 2-27
for more information regarding the transfer case
and 4LO Lock mode.
2. Press the button with the vehicle stopped or moving
less than 2 mph (3 km/h).
You must wait for the light in the button to stop ashing
and remain illuminated before the rear axle is locked.
Notice:If you try to lock the rear axle while your
vehicle is stuck and the tires are spinning, you
could damage your vehicle’s drivetrain. The repairs
would not be covered by your warranty. Always lock
the rear axle before attempting situations and/or
navigating terrain which could possibly cause the
vehicle to become stuck.
The locking rear axle will be disengaged when the
wheel speed is greater than 20 mph (32 km/h), if the
vehicle’s battery is low and/or the transfer case is
shifted out of 4LO Lock mode.
Notice:If you lock the rear axle while driving on
pavement, you could damage your vehicle’s
drivetrain. The repairs would not be covered by
your warranty. Do not use the locking rear axle
on pavement. If you need four-wheel drive when
traveling on pavement, use only 4HI.StabiliTrak®System
Your vehicle has a vehicle stability enhancement
system called StabiliTrak®. It is an advanced computer
controlled system that assists you with directional
control of the vehicle in difficult driving conditions.
StabiliTrak
®activates when the computer senses a
discrepancy between your intended path and the
direction the vehicle is actually traveling. StabiliTrak
®
selectively applies braking pressure at any one of
the vehicle’s brakes to assist the driver with keeping
the vehicle on the intended path.
When you rst start your vehicle and begin to drive
away, the system performs several diagnostic checks to
insure there are no problems. You may hear or feel
the system working. This is normal and does not mean
there is a problem with your vehicle.
If there is a problem detected with StabiliTrak
®,a
SERVICE STAB SYS message will be displayed on the
Driver Information Center (DIC). SeeDIC Warnings
and Messages on page 3-43for more information. When
this message is displayed, the system is not operational.
Adjust your driving accordingly.
4-7

StabiliTrak®comes on automatically whenever you
start your vehicle. However, when the transfer case is
placed in Four-Wheel-Low Lock mode, StabiliTrak
®
is automatically disabled. SeeFull-Time Four-Wheel
Drive on page 2-27for more information. To help assist
you with directional control of the vehicle, you should
always leave the system on. You can turn StabiliTrak
®
off if you ever need to using the TC (traction control)
on/off button. If you press and hold the TC button for
ve seconds, the StabiliTrak
®system and the traction
control system will turn off. When this is done, the
STAB SYS OFF message will be displayed on the DIC.
Press the TC button again to turn StabiliTrak
®back
on. SeeTraction Control System (TCS) on page 4-5.
If your vehicle is in cruise control when the StabiliTrak
®
activates, the cruise control will automatically
disengage. When road conditions allow you to safely
use it again, you may reengage the cruise control.
SeeCruise Control on page 3-11for more information.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer
but it will take much more effort.
Steering Tips
It is important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned
on the news happen on curves. Here is why:
Experienced driver or beginner, each of us is subject
to the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when you
turn the front wheels. If there is no traction, inertia will
keep the vehicle going in the same direction. If you
have ever tried to steer a vehicle on wet ice, you will
understand this.
The traction you can get in a curve depends on the
condition of the tires and the road surface, the angle at
which the curve is banked, and your speed. While you
are in a curve, speed is the one factor you can control.
Suppose you are steering through a sharp curve.
Then you suddenly accelerate. Both control
systems — steering and acceleration — have to do their
work where the tires meet the road. Adding the sudden
acceleration can demand too much of those places.
You can lose control. SeeTraction Control System (TCS)
on page 4-5andStabiliTrak
®System on page 4-7.
What should you do if this ever happens? Ease up on
the accelerator pedal, steer the vehicle the way you
want it to go, and slow down.
4-8

GVWR:Gross Vehicle Weight Rating. See
Loading Your Vehicle on page 4-42.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on
page 4-42.
GAWR RR
:Gross Axle Weight Rating for the rear
axle. SeeLoading Your Vehicle on page 4-42.
Intended Outboard Sidewall
:The side of
an asymmetrical tire, that must always face
outward when mounted on a vehicle.
Kilopascal (kPa)
:The metric unit for air pressure.
Light Truck (LT-Metric) Tire
:A tire used on
light duty trucks and some multipurpose passenger
vehicles.
Load Index
:An assigned number ranging
from 1 to 279 that corresponds to the load carrying
capacity of a tire.
Maximum Ination Pressure
:The maximum air
pressure to which a cold tire can be inated.
The maximum air pressure is molded onto the
sidewall.
Maximum Load Rating
:The load rating for a tire
at the maximum permissible ination pressure
for that tire.Maximum Loaded Vehicle Weight
:The sum of
curb weight, accessory weight, vehicle capacity
weight, and production options weight.
Normal Occupant Weight
:The number of
occupants a vehicle is designed to seat multiplied
by 150 lbs (68 kg). SeeLoading Your Vehicle
on page 4-42.
Occupant Distribution
:Designated seating
positions.
Outward Facing Sidewall
:The side of an
asymmetrical tire that has a particular side that
faces outward when mounted on a vehicle.
The side of the tire that contains a whitewall, bears
white lettering, or bears manufacturer, brand,
and/or model name molding that is higher
or deeper than the same moldings on the other
sidewall of the tire.
Passenger (P-Metric) Tire
:A tire used on
passenger cars and some light duty trucks and
multipurpose vehicles.
Recommended Ination Pressure
:Vehicle
manufacturer’s recommended tire ination
pressure as shown on the tire placard. See
Inflation - Tire Pressure on page 5-62andLoading
Your Vehicle on page 4-42.
5-60

Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc. on the
World Wide Web at: www.helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example,
your vehicle uses computer modules to monitor and
control engine and transmission performance, to monitor
the conditions for airbag deployment and deploy
airbags in a crash and, if so equipped, to provide
antilock braking to help the driver control the vehicle.
These modules may store data to help your
dealer/retailer technician service your vehicle. Some
modules may also store data about how you operate the
vehicle, such as rate of fuel consumption or average
speed. These modules may also retain the owner’s
personal preferences, such as radio pre-sets, seat
positions, and temperature settings.
7-16