roof HUMMER H2 2007 User Guide

The exterior lamp control has four positions:
O(Off):Turn the knob to this position to turn off
all exterior lamps including the DRL. This
control will spring back to AUTO when released.
AUTO (Automatic):Turn the control to this
position to put the system into automatic headlamp
mode. AUTO mode, if enabled, will turn the
exterior lamps, including your DRL, on and off
automatically depending on how much light
is available outside the vehicle.
Your automatic lights may be disabled even if the
control is in the AUTO position.
To enable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from the parking
lamp position to AUTO.
Turn the headlamp control from the headlamp
position to AUTO.
Turn your engine off and then on again with
the headlamp control in AUTO.To disable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from AUTO to the
parking lamp position.
Turn the headlamp control from AUTO to the
headlamp position.
;(Parking Lamps):Turn the control to this
position to turn on the parking lamps, together with
the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Roof Marker Lamps
Instrument Panel Lights
187

To turn off the DRL lamps, turn the exterior lamps
control to the OFF position and then release.
For vehicles rst sold in Canada, the transaxle
must be in the PARK (P) position, before the
DRL lamps can be turned off.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
Automatic Headlamp System
When it is dark enough outside and the headlamp
switch is in AUTO, your automatic headlamp
system will turn on your headlamps at the normal
brightness along with other lamps such as the
taillamps, sidemarker, parking lamps, roof marker
lamps, and the instrument panel lights. The radio
lights will also be dim.
To turn off the automatic headlamp system, turn the
exterior lamps switch to the off position and then
release. For vehicles rst sold in Canada, the
transaxle must be in the PARK (P) position, before
the automatic headlamp system can be turned off.
Your vehicle has a light sensor located on the top
of the instrument panel. Be sure it is not
covered, or the system will be on whenever the
ignition is on.The system may also turn on your headlamps
when driving through a parking garage, heavy
overcast weather, or a tunnel. This is normal.
There is a delay in the transition between the
daytime and nighttime operation of the Daytime
Running Lamps (DRL) and the automatic headlamp
systems so that driving under bridges or bright
overhead street lights does not affect the system.
The DRL and automatic headlamp system will only
be affected when the light sensor sees a change in
lighting lasting longer than the delay.
If you start your vehicle in a dark garage, the
automatic headlamp system will come on
immediately. Once you leave the garage, it will
take approximately one minute for the automatic
headlamp system to change to DRL if it is
light outside. During that delay, your instrument
panel cluster may not be as bright as usual. Make
sure your instrument panel brightness control is
in the full bright position. SeeInstrument
Panel Brightness on page 191.
189

Off-Road Lamps
Notice:If you drive your vehicle through an
automatic car wash that does not have enough
clearance for any roof-mounted accessories
(such as off-road lamps or a roof basket)
on your vehicle, you can damage your vehicle.
To avoid damaging your vehicle in a car
wash, remove any roof-mounted accessories if
you can, and do not use an automatic car
wash while roof-mounted accessories are on
your vehicle. SeeWashing Your Vehicle
on page 495for more information.
The off-road lamps, if equipped, provide auxiliary
lighting when your vehicle is used off road.
These lamps are not intended to be used in
conjunction with, or in place of, existing vehicle
lighting. The lamps are not to be used on
any public street or highway and are to be covered
when not in use. Check your state and local
laws before installing or using any auxiliary
lighting. In some states it may be necessary to
remove the roof lamps when operating the vehicle
on the highway.The button for the off-road lamps is located in the
overhead console.
To use the lamps, be sure the engine is running.
Remove the covers from the lamps and press
the button to turn them on. Press the button again
to turn them off. An indicator light will glow near
the button when the lamps are on.
Notice:Turning on the off-road lamps before
removing the lamp covers could damage
the off-road lamps and the covers. Always
return the lamps to the upright position
and remove the covers before turning on the
off-road lamps.
The off-road lamps will remain on even after the
ignition is turned off. The off-road lamps button
must be pressed to turn them off.
Loading objects onto the off-road light bar may
cause damage to the light bar or off road lamps.
Repairs would not be covered by your warranty.
Do not load objects on the off-road light bar.
190

Care of the CD and DVD Player
The use of CD or DVD lens cleaners for CDs or
DVDs are not advised, due to the risk of
contaminating the lens of the CD optics with
lubricants internal to the CD or DVD mechanism.
Fixed Mast Antenna
The xed mast antenna can withstand most car
washes without being damaged. If the mast should
ever become slightly bent, straighten it out by
hand. If the mast is badly bent, replace it.
Check occasionally to make sure the mast is still
tightened.
XM™ Satellite Radio
Antenna System
The XM™ Satellite Radio antenna is located on
the roof of your vehicle. Keep this antenna clear of
snow and ice build up for clear radio reception.
If your vehicle has a sunroof, the performance of
the XM™ system may be affected if the sunroof
is open.Loading items onto the roof of your vehicle can
interfere with the performance of the XM™ system.
Make sure the XM™ Satellite Radio antenna is
not obstructed.
Chime Level Adjustment
The radio is used to adjust the vehicle’s chime
level. To change the volume level of the chime,
press and hold pushbutton 6 with the ignition
on and the radio power off. The volume level will
change from the normal level to loud, and
LOUD CHIME will appear on the radio display.
To change back to the default or normal setting,
press and hold pushbutton 6 again. The volume
level will change from the loud level to normal,
and NORMAL CHIME will appear on the
radio display. Removing the radio and not
replacing it with a factory radio or chime module
will disable vehicle chimes.
300

Before You Go Off-Roading
There are some things to do before you go out.
For example, be sure to have all necessary
maintenance and service work done. Check to
make sure all underbody shields are properly
attached. Remove any removable side steps.
SeeAssist Steps on page 338. Make sure any
equipment you may need — rst aid kit, cell phone,
ashlight, etc. — is securely stored in the vehicle.
Be sure you read all the information about your
four-wheel-drive vehicle in this manual. Is there
enough fuel? Is the spare tire fully inated? Are the
uid levels up where they should be? What are the
local laws that apply to off-roading where you will be
driving? If you do not know, you should check with
law enforcement people in the area. Will you be on
someone’s private land? If so, be sure to get the
necessary permission.
Loading Your Vehicle for Off-Road
Driving
{CAUTION:
Cargo on the load oor piled higher
than the seatbacks can be thrown
forward during a sudden stop. You or
your passengers could be injured.
Keep cargo below the top of the
seatbacks.
Unsecured cargo on the load oor can
be tossed about when driving over
rough terrain. You or your passengers
can be struck by ying objects.
Secure the cargo properly.
Heavy loads on the roof raise the
vehicle’s center of gravity, making it
more likely to roll over. You can be
seriously or fatally injured if the
vehicle rolls over. Put heavy loads
inside the cargo area, not on the roof.
Keep cargo in the cargo area as far
forward and low as possible.
318

Service........................................................ 392
Accessories and Modications................... 392
California Proposition 65 Warning.............. 393
Doing Your Own Service Work.................. 393
Adding Equipment to the Outside of
Your Vehicle.......................................... 394
Fuel............................................................. 394
Gasoline Octane........................................ 394
Gasoline Specications.............................. 394
California Fuel........................................... 395
Additives................................................... 395
Fuels in Foreign Countries........................ 396
Filling the Tank......................................... 397
Filling a Portable Fuel Container............... 399
Checking Things Under the Hood.............. 400
Hood Release........................................... 400
Engine Compartment Overview.................. 402
Engine Oil................................................. 404
Engine Oil Life System.............................. 407
Engine Air Cleaner/Filter............................ 409
Automatic Transmission Fluid.................... 412
Engine Coolant.......................................... 415Coolant Surge Tank Pressure Cap............ 418
Engine Overheating................................... 418
Overheated Engine Protection
Operating Mode..................................... 420
Cooling System......................................... 420
Power Steering Fluid ................................. 425
Windshield Washer Fluid........................... 426
Brakes...................................................... 427
Battery...................................................... 431
Jump Starting............................................ 432
Rear Axle.................................................... 437
Four-Wheel Drive........................................ 438
Front Axle................................................... 440
Bulb Replacement....................................... 441
Halogen Bulbs........................................... 441
Headlamps................................................ 441
Front Turn Signal and Parking Lamps.......... 442
Daytime Running Lamps (DRL)................. 443
Roof Marker Lamps................................... 443
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps...................................... 444
Replacement Bulbs................................... 446
Section 5 Service and Appearance Care
389

Daytime Running Lamps (DRL)
To replace a daytime running lamp bulb, do the
following:
1. Locate the lamp
assembly behind the
front bumper. It is
easiest to come
in from the side of
the vehicle
through the wheel
opening.
2. Turn the bulb socket counterclockwise and
remove it from the lamp housing.
3. Remove the bulb from the bulb socket.
4. Install the new bulb into the bulb socket.
5. Reinstall the bulb socket into the lamp housing
and turn it clockwise until it locks.
Roof Marker Lamps
Corner Roof Marker Lamps
To replace one of these bulbs, do the following:
1. Remove the screw and lift off the lens.
2. Turn the bulb socket counterclockwise to
remove it.
3. Remove the bulb.
4. Install a new bulb into the socket.
5. Reinstall the socket into the lens and turn it
clockwise to lock it into place.
6. Hook the side of the lens with the hook end into
the notch rst and then tighten the screw.
443

Center Roof Marker Lamps
To replace one of these bulbs, do the following:
1. Push in on the notch with a at tool and pull
the lamp out.
2. Turn the bulb socket counterclockwise and
remove it from the lamp housing.
3. Remove the bulb from the bulb socket.
4. Install a new bulb into the bulb socket.
5. Place the hook end of the lamp in place on
one side and push the other end of the lamp
down until it locks in place.
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
A. Stoplamp/Taillamp
B. Turn Signal Lamp
C. Back-Up Lamp
To replace one of these bulbs, do the following:
1. Open the liftgate or tailgate. SeeLiftgate
(SUV) on page 104orTailgate/Spare Tire
Carrier on page 108for more information.
444

Your vehicle may have a taillamp in the bumper.
To replace it, do the following:
1. Locate the affected
taillamp which is
behind and
under the bumper.
2. Turn the bulb socket counterclockwise and
remove it from the lamp housing.
3. Remove the bulb from the bulb socket.
4. Install the new bulb into the bulb socket.
5. Reinstall the bulb socket into the lamp housing
and turn it clockwise to lock it.Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3156K
Daytime Running Lamp (DRL) 4114K LCP
Front Turn Signal and
Parking Lamp4157K or 3157KX
Low-Beam and High-Beam
Headlamps9007
Rear Taillamp and Stoplamp 3057K
Rear Taillamp in Bumper 3057K
Rear Turn Signal Lamp 3156K
Roof Marker Lamp Center 168
Roof Marker Lamp Corner 194
For replacement bulbs not listed here, contact
your dealer.
446

GM-approved cleaning products can be obtained
from your dealer. SeeVehicle Care/Appearance
Materials on page 501. Do not use cleaning agents
that are petroleum based, or that contain acid or
abrasives. All cleaning agents should be ushed
promptly and not allowed to dry on the surface, or
they could stain. Dry the nish with a soft, clean
chamois or an all-cotton towel to avoid surface
scratches and water spotting.
High pressure car washes may cause water to
enter the vehicle.
The overall height, width, and underbody
clearances of the HUMMER H2 are similar to
current General Motors’ full-size light duty trucks.
This means a HUMMER H2 should t in a
standard car wash. But, if your vehicle has added
accessories like roof-mounted lamps or a roof
basket, it might not t properly in a standard
car wash.Notice:Certain add-on accessories can
change the dimensions of your vehicle.
If you’ve added items to the outside of your
vehicle, it might not t properly in a standard
car wash. Your vehicle and the car wash could
be damaged. To help prevent damage, know
how accessories have changed the dimensions
of your vehicle and check with the car wash
manager before entering a car wash.
Notice:If you drive your vehicle through an
automatic car wash that does not have enough
clearance for any roof-mounted accessories
(such as off-road lamps or a roof basket)
on your vehicle, you can damage your vehicle.
To avoid damaging your vehicle in a car
wash, remove any roof-mounted accessories if
you can, and do not use an automatic car
wash while roof-mounted accessories are on
your vehicle. SeePower Winch Platform
on page 361andOff-Road Lamps on page 190
for more information.
Also seeLuggage Carrier on page 160for more
information.
496