2010 HUMMER H3 AUX

1-16 In Brief
Power Outlets
The accessory power outlets can be
used to connect auxiliary electrical
equipment, such as a cellular
phone.
There are two accessory power
outlets located under the climate
control system. There is also
one accessory power outlet
located in the rear cargo area
(H3 model only).
To use the outlet, open the cover.
SeePower Outlets
on page 5‑5andCigarette Lighter on page 5‑5.
Sunroof
Sunroof
To open or close the sunroof, press
the front or rear of the switch.
For more information see Sunroof
on page 2‑17.
Performance and
Maintenance
Traction Control
System (TCS)
The traction control system limits
wheel spin. The system turns on
automatically every time the vehicle
is started.
.To turn off traction control,
press and release the
dbutton
located on the Instrument
panel.
dilluminates and the
appropriate DIC message
is displayed. See Vehicle
Messages on page 5‑21.
.Press the button again to turn
traction control back on.
For more information, see Traction
Control System (TCS)
on
page 9‑52.

Instruments and Controls 5-5
Power Outlets
The accessory power outlets can be
used to connect auxiliary electrical
equipment, such as a cellular
phone.
There are two accessory power
outlets located under the climate
control system. There is also one
accessory power outlet located in
the rear cargo area (H3 model only).
Pull down the small cover to access
the accessory power outlet.
Notice:Leaving electrical
equipment on for extended
periods will drain the battery.
Always unplug electrical
equipment when not in use
and do not plug in equipment
that exceeds the maximum
amperage rating of 20 amperes. Certain electrical accessories
may not be compatible with the
accessory power outlet and could
result in blown vehicle or adapter
fuses. If you experience a problem,
see your dealer for additional
information on accessory power
outlets.
Notice:
Adding any electrical
equipment to the vehicle
can damage it or keep other
components from working as
they should. The repairs would
not be covered by the vehicle
warranty. Do not use equipment
exceeding maximum amperage
rating of 20 amperes. Check
with your dealer before adding
electrical equipment.
When adding electrical equipment,
be sure to follow the proper
installation instructions included
with the equipment. Notice:
Improper use of the
power outlet can cause damage
not covered by the vehicle
warranty. Do not hang any type
of accessory or accessory
bracket from the plug because
the power outlets are designed
for accessory power plugs only.
Cigarette Lighter
For vehicles with a lighter, push the
lighter down and it will pop up when
it is ready to be used.
Notice: Holding a cigarette lighter
in while it is heating does not let
the lighter back away from the
heating element when it is hot.
Damage from overheating can
occur to the lighter or heating
element, or a fuse could be
blown. Do not hold a cigarette
lighter in while it is heating.

6-6 Lighting
Fog Lamps
The fog lamp button is located in the
exterior lamps control.
#(Fog Lamps):The headlamps
or parking lamps must be on for the
fog lamps to work. Press
#to turn
the fog lamps on or off. An indicator
light turns on when the fog lamps
are on.
Never use the fog lamps in the dark
without turning on the headlamps.
When the high-beam headlamps
are turned on, the fog lamps turn off
automatically. When the high-beam
headlamps are turned off, the fog
lamps come on again.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.
Off-Road Lamps
For vehicles with off-road lamps,
they provide auxiliary lighting when
the vehicle is used off road. These
lamps are not intended to be used
in place of existing vehicle lighting.
They 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 off-road lamps button is located
on the instrument panel below the
climate controls.
Remove the covers from the lamps
and press the button to turn them
on or off. An indicator light turns on
when the lamps are on.

Driving and Operating 9-81
Trailer Brake Control Wiring
Harness
The trailer brake control wiring
harness is located under the
instrument panel to the right of the
steering column. The wires are
taped to the harness that goes
to the courtesy light under the
instrument panel. The harness
has the following wires:
.Red Wire: AUX B+
.Black Wire: Ground
.Light Blue Wire: Brake Signal
.Dark Blue Wire: Trailer Brakes
Trailer Recommendations
Subtract the hitch loads from the
Cargo Weight Rating (CWR). CWR
is the maximum weight of the load
the vehicle can carry. It does not
include the weight of the people
inside, but you can figure about
68 kg (150 lbs) for each passenger.
The total cargo load must not be
more than the vehicles CWR.
Weigh the vehicle with the trailer
attached, so the GVWR or GAWR
are not exceeded. If using a
weight-distributing hitch, weigh the
vehicle without the spring bars in
place.
The best performance is obtained
by correctly spreading out the
weight of the load and choosing the
correct hitch and trailer brakes.
For more information seeTrailer
Towing on page 9‑74.
Conversions and
Add-Ons
Add-On Electrical
Equipment
Notice: Do not add anything
electrical to the vehicle unless
you check with your dealer first.
Some electrical equipment can
damage the vehicle and the
damage would not be covered
by the vehicle's warranty. Some
add-on electrical equipment can
keep other components from
working as they should.
Add-on equipment can drain the
vehicle battery, even if the vehicle is
not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see
Servicing the Airbag-Equipped
Vehicle
on page 3‑40and Adding
Equipment to the Airbag-Equipped
Vehicle on page 3‑40.

10-42 Vehicle Care
FuseUsage
39 Daytime Running
Lamps
40 Passenger Side
Headlamp
41 Driver Side
Headlamp
42 Trailer
Back-Up Lamp
43 Front Park Lamps
44 Air Injection Reactor
(AIR) Solenoid
45 Auxiliary Power 2/
Cigarette Lighter
46 Electronic Throttle
Control
47 Oxygen Sensor
48 Air Conditioning
Clutch
49 Rear Park Lamp
50 Stop Lamp Fuse
Usage
51 Auxiliary Power 1/
Cigarette Lighter
52 StabiliTrak
®,
Antilock Brake
System
53 Power Heated Seat,
Belt Switch
54 Fuel System Control
Module (FSCM)
55 Trailer Parking
Lamps
56 Front Turn Signal,
Hazard Signal,
Courtesy Mirror
57 Power Sunroof
58 Transfer Case
Control Module
Switch
59 Climate Controls
Control Head
60 Back‐Up Lamp
61 Power Seats Fuse Usage
62 Air Injection Reactor
(AIR) Pump
63 Passenger Side
Power Window
64 Antilock Brake
System,
StabiliTrak
®2
Solenoid
67 Antilock Brake
System,
StabiliTrak
®1 Motor
68 Driver Side Power
Window
82 Climate Control Fan
83 Electronic Brake
Controller
84 Trailer B+ Fuse
85 Starter
91 Generator Megafuse