cruise control HUMMER H3 2008 Owners Manual

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers........................................3-10
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-11
Cruise Control..............................................3-11
Exterior Lamps.............................................3-15
Headlamps on Reminder................................3-16
Daytime Running Lamps (DRL).......................3-17
Automatic Headlamp System..........................3-17
Off-Road Lamps...........................................3-18
Fog Lamps..................................................3-19
Instrument Panel Brightness...........................3-19
Dome Lamp.................................................3-19
Dome Lamp Override....................................3-20
Exit Lighting.................................................3-20
Reading Lamps............................................3-20Electric Power Management...........................3-20
Battery Run-Down Protection..........................3-20
Accessory Power Outlet(s).............................3-21
Ashtray(s) and Cigarette Lighter......................3-22
Climate Controls............................................3-22
Climate Control System.................................3-22
Outlet Adjustment.........................................3-24
Warning Lights, Gages, and Indicators............3-25
Instrument Panel Cluster................................3-26
Speedometer and Odometer..........................
.3-27
Trip Odometer..............................................3-27
Tachometer.................................................3-27
Safety Belt Reminders...................................3-28
Airbag Readiness Light..................................3-29
Passenger Airbag Status Indicator...................3-30
Charging System Light..................................3-32
Up-Shift Light...............................................3-32
Brake System Warning Light..........................3-33
Antilock Brake System Warning Light...............3-34
Traction Off Light..........................................3-34
StabiliTrak
®Not Ready Light..........................3-34
Engine Coolant Temperature Gage..................3-35
Tire Pressure Light.......................................3-35
Section 3 Instrument Panel
3-1

Malfunction Indicator Lamp.............................3-36
Oil Pressure Light.........................................3-38
Security Light...............................................3-39
Cruise Control Light......................................3-39
Highbeam On Light.......................................3-39
Fuel Gage...................................................3-40
Driver Information Center (DIC).......................3-40
DIC Operation and Displays...........................3-40
DIC Warnings and Messages.........................3-43Audio System(s).............................................3-48
Setting the Time...........................................3-48
Radio(s)......................................................3-49
XM Radio Messages.....................................3-60
Navigation/Radio System...............................3-61
Theft-Deterrent Feature..................................3-61
Radio Reception...........................................3-61
Fixed Mast Antenna......................................3-62
XM™ Satellite Radio Antenna System.............3-62
Section 3 Instrument Panel
3-2

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-24.
B. Turn Signal/Multifunction Lever. SeeTurn Signal/
Multifunction Lever on page 3-7. Windshield
Washer/Wiper. SeeWindshield Wipers on page 3-10
andWindshield Washer on page 3-10. Cruise
Controls. SeeCruise Control on page 3-11.
C. Horn. SeeHorn on page 3-6.
D. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-26.
E. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
F. All-Wheel Drive, Passenger Air Bag Status Indicator,
Locking Rear Axle, and Traction Control System/
StabiliTrak
®Buttons. SeeFull-Time Four-Wheel
Drive on page 2-27,Passenger Airbag Status
Indicator on page 3-30,Locking Rear Axle on
page 4-6,Traction Control System (TCS) on
page 4-5andStabiliTrak
®System on page 4-7.
G. Exterior Lamps Control, Dome Override Button,
Instrument Panel Brightness Control, Fog Lamp
Button, and OnStar
®Button. SeeExterior Lamps on
page 3-15,Dome Lamp Override on page 3-20,
Instrument Panel Brightness on page 3-19,
Fog Lamps on page 3-19, andOnStar
®System on
page 2-48.H. Parking Brake Release. SeeParking Brake on
page 2-32.
I. Audio System. SeeAudio System(s) on page 3-48.
J. Climate Control System. SeeClimate Control
System on page 3-22.
K. Rear Washer/Wiper Control. SeeRear Window
Wiper/Washer on page 3-11.
L. Off-Road Lamps Buttons. SeeOff-Road Lamps on
page 3-18.
M. Shift Lever. SeeAutomatic Transmission Operation
on page 2-23orManual Transmission Operation
on page 2-26.
N. Accessory Power Outlets. SeeAccessory Power
Outlet(s) on page 3-21.
O. Glove Box. SeeGlove Box on page 2-56.
3-5

Tilt Wheel
A tilt wheel allows the steering wheel to be adjusted
before driving. It can be raised to allow more room for
the driver to enter and exit the vehicle.
The tilt lever is located on the left side of the steering
column, under the turn signal lever.
To tilt, hold the steering wheel and pull the tilt lever
toward you. Move the wheel to a comfortable level, then
release the tilt lever to lock the wheel in place.
Do not adjust the steering wheel while driving.
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals. SeeTurn
Signal/Multifunction Lever on page 3-7.
53Headlamp High/Low-Beam Changer. See
Headlamp High/Low-Beam Changer on page 3-9.
Flash-to-Pass. SeeFlash-to-Pass on page 3-9.
NWindshield Wipers. SeeWindshield Wipers on
page 3-10.
LWindshield Washer. SeeWindshield Washer
on page 3-10.
JCruise Control. SeeCruise Control on
page 3-11.
3-7

Rear Window Wiper/Washer
This knob is located on the
instrument panel below the
climate controls.
Z(Rear Wiper):Turn the knob to 1 for a slower
wiping speed or to 2 for a faster wiping speed.
0 (Off):Turn the knob to 0 for off.
=(Washer Fluid):To wash and wipe the window,
press the button within the knob with this symbol.
The rear window washer uses the same uid bottle as
the windshield washer. However, the rear window
washer will run out of uid before the windshield washer.
If the windshield can be washed, but not the rear
windows, check the uid level.
Cruise Control
With cruise control, you can maintain a speed of about
25 mph (40 km/h) or more without keeping your foot
on the accelerator. This can really help on long
trips. Cruise control does not work at speeds below
about 25 mph (40 km/h).
9(Off):This position
turns the system off.
R(On):This position activates the system.
+ (Resume/Accelerate):Move the lever to this symbol
to make the vehicle accelerate or resume to a
previously set speed.
rT(Set):Press this button to set the speed.
3-11

Cruise control will not work if your parking brake is set,
or if the master cylinder brake uid level is low.
If you apply your brakes, the cruise control shuts off.
{CAUTION:
Cruise control can be dangerous where you
cannot drive safely at a steady speed. So, do
not use your cruise control on winding roads
or in heavy traffic.
Cruise control can be dangerous on slippery
roads. On such roads, fast changes in tire
traction can cause excessive wheel slip, and
you could lose control. Do not use cruise
control on slippery roads.
The cruise control disengages, if the vehicle has the
Traction Control System (TCS) and it begins to
limit wheel spin. SeeTraction Control System (TCS) on
page 4-5. When road conditions allow you to safely
use it again, you can turn cruise control back on.
Setting Cruise Control
{CAUTION:
If you leave your cruise control on when you
are not using cruise, you might hit a button
and go into cruise when you do not want to.
You could be startled and even lose control.
Keep the cruise control switch off until you
want to use cruise control.
1. Move the cruise control switch to on.
2. Get up to the speed desired.
3. Press in the set button at the end of the lever and
release it.
4. Take your foot off the accelerator pedal.
The cruise symbol on the
instrument panel comes on
when the cruise control
is engaged.
3-12

Resuming a Set Speed
Suppose you set your cruise control at a desired speed
and then you apply the brake or step on the clutch.
This, of course, disengages the cruise control. But you
do not need to reset it.
Once you are going about 25 mph (40 km/h) or more,
you can move the cruise control switch briey from on to
resume/accelerate.
The vehicle will go back to the chosen speed and
stays there.
If you hold the switch at resume/accelerate the vehicle
will keep going faster until you release the switch or
apply the brake. Do not hold the switch at resume/
accelerate, unless you want the vehicle to go faster.
Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed:
Use the accelerator pedal to get to the higher
speed. Press the set button at the end of the lever,
then release the button and the accelerator
pedal. You will now cruise at the higher speed.
If the accelerator pedal is held longer than
60 seconds, cruise control will turn off.
Move the cruise switch from on to resume/
accelerate. Hold it there until you get up to the
speed you want, and then release the switch.
To increase your speed in very small amounts,
move the switch briey to resume/accelerate. Each
time you do this, your vehicle goes about 1 mph
(1.6 km/h) faster.
3-13

Reducing Speed While Using Cruise
Control

Press and hold the set button until you reach the
desired lower speed, then release it.
To slow down in very small amounts, briey press
the set button. Each time you do this, you will go
about 1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase your speed.
When you take your foot off the pedal, your vehicle
slows down to the cruise control speed you set earlier.
Using Cruise Control on Hills
How well your cruise control works on hills depends
upon your speed, load, and the steepness of the hills.
When going up steep hills, you might want to step on the
accelerator pedal to maintain the vehicle speed.When going downhill, you might have to brake or shift
to a lower gear to keep the vehicle speed down. Of
course, applying the brake turns off the cruise control.
Many drivers nd this to be too much trouble and do not
use cruise control on steep hills.
Ending Cruise Control
To turn off the cruise control, do one of the following:
Step lightly on the brake pedal.
Move the cruise control switch to off.
Lightly tap or press the clutch, if you have a manual
transmission.
Erasing Speed Memory
When you turn off the cruise control or the ignition, the
cruise control set speed memory is erased.
3-14

Security Light
For information regarding
this light and the vehicle’s
security system, see
Content Theft-Deterrent on
page 2-14.
Cruise Control Light
This light comes on
whenever you set the
cruise control.
The light goes out when the cruise control is turned off.
SeeCruise Control on page 3-11for more information.
Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-9
for more information.
3-39

ABS can change the brake pressure faster than any
driver could. The computer is programmed to make the
most of available tire and road conditions. This can
help you steer around the obstacle while braking hard.
As you brake, the computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
Remember: ABS does not change the time you need to
get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle
in front of you, you will not have time to apply the brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal down
rmly and let antilock work for you. You might feel the
brakes vibrate or notice some noise, but this is normal.
Braking in Emergencies
With ABS, you can steer and brake at the same time.
In many emergencies, steering can help you more
than even the very best braking.
Traction Control System (TCS)
Your vehicle has a Traction Control System (TCS) that
limits wheel spin. This is especially useful in slippery road
conditions. The system operates only if it senses that any
of the wheels are spinning or beginning to lose traction.
When this happens, the system applies the brakes to limit
wheel spin and also reduces engine power. You may feel
or hear the system working, but this is normal.
The Traction Control System may operate on dry roads
under some conditions. When this happens, you may
notice a reduction in acceleration or a pumping sound.
This is normal and doesn’t mean there’s a problem with
your vehicle. Examples of these conditions include hard
acceleration in a turn, an abrupt upshift or downshift of
the transmission or driving on rough roads.
If your vehicle is in cruise control when the TCS begins
to limit wheel spin, the cruise control will automatically
disengage. When road conditions allow you to safely
use it again, you may re-engage the cruise control.
SeeCruise Control on page 3-11.
If your vehicle has a Driver information Center (DIC),
a TRACTION FAULT message will appear when a
Traction Control System or Anti-Lock Brake System
problem has been detected and the vehicle needs
service. SeeDIC Warnings and Messages on page 3-43
for more information.
4-5