2009 HUMMER H2 roof

AM
The range for most AM stations is greater than for FM,
especially at night. The longer range can cause station
frequencies to interfere with each other. For better radio
reception, most AM radio stations boost the power levels
during the day, and then reduce these levels during the
night. Static can also occur when things like storms and
power lines interfere with radio reception. When this
happens, try reducing the treble on the radio.
FM Stereo
FM signals only reach about 10 to 40 miles
(16 to 65 km). Although the radio has a built-in electronic
circuit that automatically works to reduce interference,
some static can occur, especially around tall buildings
or hills, causing the sound to fade in and out.
XM™ Satellite Radio Service
XM Satellite Radio Service gives digital radio reception
from coast-to-coast in the 48 contiguous United States,
and in Canada. Just as with FM, tall buildings or hills can
interfere with satellite radio signals, causing the sound to
fade in and out. In addition, traveling or standing under
heavy foliage, bridges, garages, or tunnels may cause
loss of the XM signal for a period of time.
Cellular Phone Usage
Cellular phone usage may cause interference with the
vehicle’s radio. This interference may occur when making
or receiving phone calls, charging the phone’s battery,
or simply having the phone on. This interference causes
an increased level of static while listening to the radio.
If static is received while listening to the radio, unplug
the cellular phone and turn it off.
Fixed Mast Antenna
The xed mast antenna can withstand most car washes
without being damaged as long as it is securely attached
to the base. If the mast becomes slightly bent, straighten
it out by hand. If the mast is badly bent, replace it.
Occasionally check to make sure the antenna is
tightened to its base. If tightening is required, tighten
by hand until fully seated plus one quarter turn.
XM™ Satellite Radio Antenna
System
The XM Satellite Radio antenna is located on the roof of
the vehicle. Keep the antenna clear of obstructions for
clear radio reception.
If the vehicle has a sunroof, the performance of the XM
system may be affected if the sunroof is open.
3-130

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.There are some important things to remember about
how to load your vehicle.
The heaviest things should be on the oor, forward
of the rear axle. Put heavier items as far forward
as you can.
Be sure the load is properly secured, so things are
not tossed around.
You will nd other important information underLoading
the Vehicle on page 4-44andTires on page 5-57.
4-16

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
the Vehicle.................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuel E85 (85% Ethanol)..................................5-7
Fuels in Foreign Countries...............................5-8
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-11
Hood Release..............................................5-12
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-15
Engine Oil Life System..................................5-18
Engine Air Cleaner/Filter................................5-20
Automatic Transmission Fluid.........................5-23
Cooling System............................................5-27
Engine Coolant.............................................5-31
Engine Overheating.......................................5-33Overheated Engine Protection
Operating Mode.........................................5-35
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37
Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Rear Axle.......................................................5-47
Four-Wheel Drive............................................5-48
Front Axle......................................................5-49
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps..................................................5-51
Front Turn Signal and Parking Lamps..............5-52
Daytime Running Lamps (DRL).......................5-52
Roof Marker Lamps......................................5-53
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-54
Replacement Bulbs.......................................5-55
Windshield Wiper Blade Replacement..............5-56
Tires..............................................................5-57
Tire Sidewall Labeling...................................5-58
Tire Terminology and Denitions.....................5-60
Ination - Tire Pressure.................................5-63
Tire Pressure Monitor System.........................5-64
Section 5 Service and Appearance Care
5-1

Roof Marker Lamps
Corner Roof Marker Lamps
To replace one of these bulbs:
1. Remove the screw and lift off the lens.
2. Turn the bulb socket counterclockwise pull it out of
the lamp assembly.
3. Pull the old bulb straight out of the bulb socket.
4. Push the new bulb straight into the bulb socket until
it connects.5. Turn the bulb socket clockwise into the lamp
assembly until it locks into place.
6. Place the side of the lens with the slotted end into
the notch rst and then tighten the screw.Center Roof Marker Lamps
To replace one of these bulbs:
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. Pull the old bulb straight out of the bulb socket.
4. Push the new bulb straight into the bulb socket until
it connects.
5. Place the slotted end of the lamp in place on one
side and push the other end of the lamp down until
it locks in place.
5-53

The vehicle may have a taillamp in the bumper.
To replace it:
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
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/retailer.
5-55

Fuses Usage
9 Left Low-Beam Headlamp
10 Engine Control Module (Battery)
11Fuel Injectors, Ignition Coils
(Right Side)
12Transmission Control Module
(Battery)
13 Vehicle Back-up Lamps
14 Right Low-Beam Headlamp
15 Air Conditioning Compressor
16 Oxygen Sensors
17 Transmission Controls (Ignition)
18 Fuel Pump
19 Rear Washer
20Fuel Injectors, Ignition Coils
(Left Side)
21 Trailer Park Lamps
22 Left Park Lamps
23 Right Park Lamps
24 Horn
25 Right Side High-Beam Headlamp
26 Daytime Running Lamps (DRL)
27 Left High-Beam Headlamp
28 SunroofFuses Usage
29Key Ignition System, Theft Deterrent
System
30 Windshield Wiper
31 SEO B2 Uptter Usage (Battery)
32Electrically Controlled Air
Suspension
33 Climate Controls (Battery)
34 Airbag System (Ignition)
35 Amplier
36 Audio System
37Miscellaneous (Ignition), Cruise
Control, Rear Vision Camera
38 Airbag System (Battery)
39 Instrument Panel Cluster
40 Run, Accessory
41 Auxiliary Climate Control (Ignition)
42 Rear Defogger
43 SEO B1 Uptter Usage (Battery)
44Cigarette Lighter, Auxiliary Power
Outlet
45 Special Equipment Option (SEO)
46 Climate Controls (Ignition)
47 Engine Control Module (Ignition)
5-115

Audio System (cont.)
Rear Seat Audio (RSA)...............................3-127
Setting the Clock.........................................3-73
Theft-Deterrent Feature...............................3-128
XM™ Satellite Radio Antenna System...........3-130
Audio System(s).............................................3-75
Automatic Headlamp System............................3-17
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-32
B
Battery..........................................................5-41
Electric Power Management..........................3-19
Run-Down Protection...................................3-19
Bluetooth
®....................................................3-107
Brake
Emergencies................................................ 4-6
Brake Fluid....................................................5-38
Brakes..........................................................5-38
System Warning Light..................................3-37
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-6
Break-In, New Vehicle.....................................2-27
Bucket Seats, Rear.........................................1-13Bulb Replacement...........................................5-50
Daytime Running Lamp................................5-52
Front Turn Signal and Parking Lamps.............5-52
Halogen Bulbs............................................5-50
Headlamps.................................................5-51
Replacement Bulbs......................................5-55
Roof Marker Lamps.....................................5-53
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-54
Buying New Tires...........................................5-72
C
Calibration.....................................................3-54
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-117
Carbon Monoxide...................2-14, 2-16, 2-45, 4-37
Care of
Safety Belts..............................................5-105
Cargo Area, All-Weather..................................2-66
Cargo Tie Downs............................................2-66
CD, MP3 ...............................................3-94, 3-99
Center Console Storage Area...........................2-65
2

Fuel (cont.)
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-8
Gage .........................................................3-45
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-46
Fuses
Center Instrument Panel Fuse Block.............5-112
Fuses and Circuit Breakers.........................5-110
Instrument Panel Fuse Block.......................5-111
Underhood Fuse Block...............................5-113
Windshield Wiper.......................................5-110
G
Gage
Engine Coolant Temperature.........................3-39
Fuel..........................................................3-45
Oil Pressure...............................................3-42
Speedometer..............................................3-31
Tachometer.................................................3-31
Voltmeter Gage...........................................3-36
Garage Door Opener.......................................2-57
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-64
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamps....................................................5-51
Bulb Replacement.......................................5-50
Daytime Running Lamp........................3-16, 5-52
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-9
Front Turn Signal and Parking Lamps.............5-52
Halogen Bulbs............................................5-50
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Roof Marker Lamps.....................................5-53
Heated Seats................................................... 1-6
Heated Steering Wheel..................................... 3-7
Heater
Engine Coolant...........................................2-31
Heater...........................................................3-22
Highbeam On Light.........................................3-44
Highway Hypnosis...........................................4-35
Hill and Mountain Roads..................................4-36
Hood
Checking Things Under................................5-11
Release.....................................................5-12
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-25
6