2007 HUMMER H2 tow

4mQ(Four-Wheel-High Lock):Use this
mode when you need extra traction in most
off-road situations such as sand, mud, snow, or
level, rocky trails.
4
nQ(Four-Wheel-Low Lock):This mode
delivers extra torque to all four wheels and is used
for extreme off-road conditions. You might
choose Four-Wheel-Low Lock if you are driving
off-road in deep sand, mud, or snow and climbing
or descending steep hills.
When in this mode you can also choose to lock
the rear axle for additional traction in extreme
off-road situations. SeeLocking Rear Axle
on page 311.
Notice:Operating your vehicle in
Four-Wheel-Low Lock above 50 mph (80 km/h)
for any extended period of time could cause
damage to the transfer case. Do not operate
your vehicle in Four-Wheel-Low Lock above
50 mph (80 km/h) for extended periods.
{CAUTION:
Shifting the transfer case to NEUTRAL
can cause your vehicle to roll even if the
transmission is in PARK (P). You or
someone else could be seriously injured.
Be sure to set the parking brake before
placing the transfer case in NEUTRAL.
SeeParking Brake on page 133.
N (NEUTRAL):Shift the vehicle’s transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 369or
Towing Your Vehicle on page 369for more
information.
129

Parking Brake
To set the parking brake, hold the regular brake
pedal down with your right foot. Push down
the parking brake pedal with your left foot.
A chime will activate and the warning light will
ash when the parking brake is applied and
the vehicle is moving at least 3 mph (5 km/h) for
at least three seconds.To release the parking brake, hold the regular
brake pedal down. Pull the bottom edge of
the lever, located above the parking brake pedal,
with the parking brake symbol, to release the
parking brake.
If the ignition is on when the parking brake is
released, the brake system warning light will
go off.
Notice:Driving with the parking brake on can
overheat the brake system and cause
premature wear or damage to brake system
parts. Verify that the parking brake is fully
released and the brake warning light is
off before driving.
If you are towing a trailer and are parking on any
hill, seeTowing a Trailer on page 374.
133

Shifting Into Park (P)
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. If you have left
the engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level ground,
use the steps that follow. If you are
pulling a trailer, seeTowing a Trailer on
page 374.
1. Hold the brake pedal down with your right foot
and set the parking brake.
2. Move the shift lever into PARK (P) by pressing
and holding the button on the end of the shift
lever and moving the lever forward as far
as it will go.3. Turn the ignition key to LOCK.
4. Remove the key and take it with you. If you
can leave your vehicle with the ignition key in
your hand, your vehicle is in PARK (P).Leaving Your Vehicle With the Engine
Running
{CAUTION:
It can be dangerous to leave your vehicle
with the engine running. Your vehicle
could move suddenly if the shift lever is
not fully in PARK (P) with the parking
brake rmly set. And, if you leave the
vehicle with the engine running, it could
overheat and even catch re. You or
others could be injured. Do not leave your
vehicle with the engine running.
134

If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P)
and the parking brake is rmly set before
you leave it. After you move the shift lever into
PARK (P), hold the regular brake pedal down.
Then, see if you can move the shift lever away
from PARK (P) without rst pulling it toward you.
If you can, it means that the shift lever was
not fully locked into PARK (P).
Torque Lock
If you are parking on a hill and you do not shift your
vehicle into PARK (P) properly, the weight of the
vehicle may put too much force on the parking pawl
in the transmission. You may nd it difficult to pull
the shift lever out of PARK (P). This is called torque
lock. To prevent torque lock, set the parking brake
and then shift into PARK (P) properly before you
leave the driver’s seat. To nd out how, see
Shifting Into Park (P) on page 134.When you are ready to drive, move the shift
lever out of PARK (P) before you release the
parking brake.
If torque lock does occur, you may need to have
another vehicle push yours a little uphill to
take some of the pressure from the parking pawl
in the transmission, so you can pull the shift
lever out of PARK (P).
Shifting Out of Park (P)
Your vehicle has an automatic transmission shift
lock control system. You have to fully apply
the regular brakes rst and then press the shift
lever button before you can shift from PARK (P)
when the ignition is in RUN. SeeAutomatic
Transmission Operation on page 124.
135

{CAUTION:
Full-time four-wheel drive vehicles with
the transfer case in NEUTRAL will allow
the vehicle to roll, even if your shift lever
is in PARK (P). So, be sure the transfer
case is in a drive gear — not in NEUTRAL.
Always set your parking brake.
Follow the proper steps to be sure your vehicle
will not move. SeeShifting Into Park (P) on
page 134.
If you are pulling a trailer, seeTowing a Trailer on
page 374.
Mirrors
Automatic Dimming Rearview
Mirror with Compass and
Temperature Display
If your vehicle is equipped with an automatic
mirror, it will, when on, automatically dim to the
proper level to minimize glare from lights behind
you after dark.
The mirror also includes a display in the upper
right corner of the mirror face. The compass
reading and the outside temperature will both
appear in the display at the same time. The dual
display can be turned on or off by briey
pressing the compass/temperature button.
O:This is the button for the automatic dimming
and compass/temperature functions.
Your vehicle may also have a Rear Vision
Camera. SeeRear Vision Camera on page 192
for more information.
139

Compass Variance
The mirror is set in zone eight upon leaving the
factory. It will be necessary to adjust the compass
to compensate for compass variance if you live
outside zone eight. Under certain circumstances,
as during a long distance cross-country trip, it
will be necessary to adjust for compass variance.
Compass variance is the difference between
earth’s magnetic north and true geographic north.
If not adjusted to account for compass variance,
your compass could give false readings.
To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold the compass/temperature
button for ve seconds until a zone number
appears in the display.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or
similar material dampened with glass cleaner.
Do not spray glass cleaner directly on the mirror
as that may cause the liquid cleaner to enter
the mirror housing.
141

Traction Off Light...................................... 212
Engine Coolant Temperature Gage............ 213
Transmission Temperature Gage............... 213
Malfunction Indicator Lamp........................ 215
Oil Pressure Gage..................................... 218
Security Light............................................ 219
Cruise Control Light.................................. 220
Highbeam On Light................................... 220
Tow/Haul Mode Light................................ 220
Fuel Gage................................................. 221
Low Fuel Warning Light............................ 221
Driver Information Center (DIC).................. 222
DIC Operation and Displays...................... 222
DIC Warnings and Messages.................... 226
DIC Vehicle Customization........................ 234Audio System(s)......................................... 241
Setting the Time........................................ 243
Radio with Cassette and CD..................... 243
Radio with Six-Disc CD............................. 256
XM Radio Messages................................. 269
Navigation/Radio System........................... 271
Rear Seat Entertainment System............... 271
Rear Seat Audio (RSA)............................. 294
Theft-Deterrent Feature............................. 295
Audio Steering Wheel Controls.................. 296
Radio Reception........................................ 297
Care of the Cassette Tape Player............. 297
Care of Your CDs and DVDs.................... 299
Care of the CD and DVD Player............... 300
Fixed Mast Antenna.................................. 300
XM™ Satellite Radio Antenna System....... 300
Chime Level Adjustment............................ 300
Section 3 Instrument Panel
172

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 203.
B. Exterior Lamps Control. SeeExterior Lamps on
page 186.
C. Heated Windshield Washer Control
(If Equipped). SeeWindshield Washer on
page 181.
D. OnStar
®and Radio Steering Wheel Buttons.
SeeOnStar®System on page 144and
Audio Steering Wheel Controls on page 296.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 205.
F. Locking Rear Axle and Full-Time Four-Wheel
Drive Buttons. SeeLocking Rear Axle on
page 311andFull-Time Four-Wheel Drive on
page 128.
G. Audio System. SeeAudio System(s) on
page 241.
H. Airbag Switch. SeeAirbag Off Switch on
page 84.
I. Glove Box. SeeGlove Box on page 160.J. Midgate Glass Up/Down Switch (SUT).
SeeMidgate
®(SUT) on page 105. Rear
Wiper/Washer Switch (SUV). SeeRear Window
Wiper/Washer (SUV) on page 182.
K. Dome Override Button. SeeDome Lamp
Override on page 191.
L. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 178.
M. Tilt Lever. SeeTilt Wheel on page 177.
N. Driver Information Center (DIC) Buttons. See
Driver Information Center (DIC) on page 222.
O. Parking Brake Release. SeeParking Brake
on page 133.
P. Traction Control Button. SeeTraction Control
System (TCS) on page 309.
Q. Tow/Haul Selector Button. See “Tow/Haul
Mode” underTowing a Trailer on page 374.
R. Ride Height Selector Button (If Equipped). See
Selectable Extended Rear Ride Height on
page 371.
175