2008 HUMMER H2 cruise control

Driver Shift Control (DSC)
Your vehicle has a Driver
Shift Control (DSC).
The DSC controls the
vehicle’s transmission
and vehicle speed while
driving down hill or towing
a trailer by allowing you
to select a desired range
of gears.
To use this feature:
1. Move the shift lever to the MANUAL MODE (M).
This will force a downshift from the current gear,
for gears 3 through 6.
2. Press the (+) plus or (−) minus button on the left
side of the steering wheel, to select the desired
range of gears for your current driving conditions.When in the MANUAL MODE (M) a number will display
next to the M, indicating the maximum available
gear. The DIC display will show the message MANUAL
SHIFT on the rst line and the maximum available
gear will be displayed on the second line. SeeDriver
Information Center (DIC) on page 3-49andDIC
Operation and Displays (Using DIC Buttons) on
page 3-49orDIC Operation and Displays (Using Trip
Odometer Reset Stem) on page 3-54for more
information. The number displayed in the DIC is the
highest gear available. The transmission will be limited
to the gear selected and lower gears. Shifting will
occur normally while driving, however the cluster will
continue to display the maximum available gear.
Higher gears will not be available unless the selection
is changed to include higher gears using the (+) plus
button.
Grade Braking is not available when the Driver Shift
Control is active. SeeTow/Haul Mode on page 2-36and
Towing a Trailer on page 4-55for more information.
While using the DSC, cruise control and the tow/haul
mode can be used.
2-35

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-11
Cruise Control..............................................3-12
Exterior Lamps.............................................3-15
Headlamps on Reminder................................3-17
Daytime Running Lamps (DRL).......................3-17
Automatic Headlamp System..........................3-18
Instrument Panel Brightness...........................3-18
Dome Lamps...............................................3-19
Dome Lamp Override....................................3-19
Entry/Exit Lighting.........................................3-19
Reading Lamps............................................3-19
Battery Run-Down Protection..........................3-19
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Analog Clock...............................................3-21Climate Controls............................................3-22
Dual Automatic Climate Control System...........3-22
Outlet Adjustment.........................................3-29
Rear Air Conditioning and Heating System
and Electronic Climate Controls...................3-29
Warning Lights, Gages, and Indicators............3-31
Instrument Panel Cluster................................3-32
Speedometer and Odometer...........................3-33
Trip Odometer
..............................................3-33
Tachometer.................................................3-33
Safety Belt Reminders...................................3-33
Airbag Readiness Light..................................3-34
Airbag Off Light............................................3-35
Charging System Light..................................3-37
Voltmeter Gage............................................3-37
Brake System Warning Light..........................3-38
Antilock Brake System Warning Light...............3-39
StabiliTrak
®Indicator Light..............................3-40
Engine Coolant Temperature Gage..................3-40
Tire Pressure Light.......................................3-41
Malfunction Indicator Lamp.............................3-42
Oil Pressure Gage........................................3-45
Oil Pressure Light.........................................3-46
Security Light...............................................3-46
Cruise Control Light......................................3-46
Section 3 Instrument Panel
3-1

The main components of the instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-29.
B. Midgate Window Switch (SUT). SeePower Windows
on page 2-20. Rear Wiper/Washer Switch (SUV).
SeeRear Window Wiper/Washer on page 3-11.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-32.
E. Audio Steering Wheel Buttons. SeeAudio Steering
Wheel Controls on page 3-116.
F. Driver Information Center (DIC) Buttons. SeeDriver
Information Center (DIC) on page 3-49.
G. Analog Clock.Analog Clock on page 3-21.
H. Airbag Switch. SeeAirbag Off Switch on page 1-72.
I. Global Window Switch. SeePower Windows
on page 2-20.
J. Exterior Lamps Control. SeeExterior Lamps
on page 3-15.
K. Dome Lamp Override Button. SeeDome Lamp
Override on page 3-19Instrument Panel Brightness
Control. SeeInstrument Panel Brightness on
page 3-18. Heated Windshield Washer Control
(If Equipped). SeeWindshield Washer on page 3-10.L. Cruise Control Buttons. SeeCruise Control
on page 3-12.
M. Tilt Lever. SeeTilt Wheel on page 3-6.
N. Horn. SeeHorn on page 3-6.
O. Full-Time Four-Wheel Drive Buttons. SeeFull-Time
Four-Wheel Drive on page 2-36.
P. Locking Rear Axle. SeeLocking Rear Axle on
page 4-6. Tow/Haul Selector Button. SeeTow/Haul
Mode on page 2-36. Traction Control (TCS) Button.
SeeTraction Control System (TCS) on page 4-5.
Ride Height Selector Button (If Equipped). See
Selectable Extended Rear Ride Height on page 4-53.
Q. Shift Lever. SeeAutomatic Transmission Operation
on page 2-32.
R. Accessory Power Outlet. SeeAccessory Power
Outlet(s) on page 3-20.
S. Climate Control System. SeeDual Automatic
Climate Control System on page 3-22.
T. Audio System. SeeAudio System(s) on page 3-72.
U. Glove Box. SeeGlove Box on page 2-64.
3-5

Cruise Control
{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.
With cruise control, a speed of about 25 mph (40 km/h)
or more can be maintained 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).
When you apply your brakes, cruise control is turned off.If your vehicle has the StabiliTrak
®system or Traction
Control system (TCS) and begins to limit wheel spin
while you are using cruise control, the cruise control will
automatically disengage. SeeStabiliTrak
®System on
page 4-7orTraction Control System (TCS) on page 4-5.
When road conditions allow you to safely use it again,
you can turn the cruise control back on.
The cruise control buttons
are located on the left side
of the steering wheel.
T(On/Off):This button can both activate and turn
off the system. The indicator light on the button turns
on when cruise control is on and turns off when
cruise control is off.
3-12

+ RES (Resume/Accelerate):Press this button to
make the vehicle accelerate or resume to a previously
set speed.
SET−(Set/Coast):Press this button to set the speed
or make the vehicle decelerate.
[(Cancel):Press this button to cancel cruise control
without erasing the set speed from memory.
Setting Cruise Control
Cruise control will not work if your parking brake is set
or if the master cylinder brake uid level is low.
The cruise control light on the instrument panel cluster
will come on after the cruise control has been set to
the desired speed.
{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. Press the cruise control On/Off button.
2. Get up to the desired speed.
3. Press the SET−button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
3-13

Resuming a Set Speed
Suppose you set your cruise control at a desired
speed and then you apply the brake. This shuts off
the cruise control. But you do not need to reset it.
Once you are driving about 25 mph (40 km/h) or
more, press the +RES button on the steering wheel.
The vehicle will return to the previously set speed
and stay there.
Increasing Speed While Using
Cruise Control
To increase the cruise speed while using cruise control:
Press and hold the +RES button on the steering
wheel until the desired speed is reached, then
release it.
To increase vehicle speed in small increments,
press the +RES button. Each time this is done,
the vehicle will go about 1 mph (1.6 km/h) faster.
Reducing Speed While Using
Cruise Control
To reduce the vehicle’s speed while using
cruise control:
Press and hold the SET– button on the
steering wheel until the desired lower
speed is reached, then release it.
To slow down in very small amounts,
press the SET– button on the steering
wheel briey. Each time this is done, the
vehicle will go about 1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase the vehicle’s
speed. When you take your foot off the pedal,
the vehicle will slow down to the previously set
cruise speed.
3-14

Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon the vehicle’s speed, load, and the steepness
of the hills. When going up steep hills, you might
have to step on the accelerator pedal to maintain the
vehicle’s speed. When going downhill, you might have
to brake or shift to a lower gear to keep the vehicle’s
speed down. When the brakes are applied the cruise
control turns off. Many drivers nd this to be too much
trouble and do not use cruise control on steep hills.
Ending Cruise Control
There are three ways to end cruise control:
Step lightly on the brake pedal.
Press the[button on the steering wheel.
Press theTbutton on the steering wheel.
Erasing Speed Memory
The cruise control set speed memory is erased when
the cruise control or the ignition is turned off.
Exterior Lamps
The exterior lamps
control is located on
the instrument panel
to the left of the
steering wheel.
It controls the following systems:
Headlamps
Taillamps
Parking Lamps
License Plate Lamps
Instrument Panel Lights
3-15

Oil Pressure Light
{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.
This light will come on
briey when you start your
engine. If it does not,
have your vehicle serviced.
When the light comes on and stays on, it means that
oil is not owing through your engine properly. You could
be low on oil and you might have some other system
problem.
Security Light
For information regarding
this light and the vehicle’s
security system, see
Content Theft-Deterrent
on page 2-24.
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 3-12for more information.
3-46