2010 HUMMER H3 battery

In Brief 1-21
The vehicle must have a working
electrical system, including
adequate battery power, for the
OnStar equipment to operate. There
are other problems OnStar cannot
control that may prevent OnStar
from providing OnStar service at
any particular time or place. Some
examples are damage to important
parts of the vehicle in a crash, hills,
tall buildings, tunnels, weather or
wireless phone network congestion.Additional OnStar Controls
The vehicle may have a button,
located on the driver side of the
instrument panel near the headlamp
controls, that can be used to interact
with OnStar.
Use this button to dial numbers into
voicemail systems or to dial phone
number extensions. See the OnStar
Owner's Guide for more information.
Your Responsibility
Increase the volume of the radio if
the OnStar advisor cannot be heard.
If the light next to the OnStar
buttons is red, the system may
not be functioning properly.
Press
Qand request a vehicle
diagnostic. If the light appears clear
(no light is appearing), your OnStar
subscription has expired and all
services have been deactivated.
Press
Qto confirm that the OnStar
equipment is active.

Keys, Doors and Windows 2-3
If there is a decrease in the RKE
operating range:
.Check the distance.
The transmitter may be
too far from the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the transmitter's battery.
See“Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
The Remote Keyless Entry (RKE)
transmitter functions work up to 9 m
(30 feet) away from the vehicle.
There are other conditions which
can affect the performance of the
transmitter. See Remote Keyless
Entry (RKE) System on page 2‑2.
LOCK: Press to lock all the doors.
The parking lamps may flash and
the horn may chirp.
If a door is open or ajar when LOCK
is pressed, the doors lock, but the
theft-deterrent system does not arm
until the open door is closed.
Pressing LOCK may arm the
content theft-deterrent system.
See Anti-Theft Alarm System
on
page 2‑9for additional information. UNLOCK:
Press to unlock only the
driver's door. The interior lamps
come on, the parking lamps may
flash, and the horn may sound.
Press UNLOCK again within
three seconds to unlock all the
doors.
Pressing UNLOCK may disarm the
content theft-deterrent system.
See Anti-Theft Alarm System
on
page 2‑9for additional information.
Different feedback choices can be
programmed through the Driver
Information Center (DIC). See
“Remote Keyless Entry Feedback”
under Driver Information Center
(DIC) on page 5‑18.
L (Panic): Press to activate the
alarm. The horn sounds and the
headlamps and taillamps flash for
up to 30 seconds. To turn the alarm
off press Lagain, start the vehicle
or wait 30 seconds.

2-4 Keys, Doors and Windows
Programming Transmitters to
the Vehicle
Only RKE transmitters
programmed to this vehicle will
work. If a transmitter is lost or
stolen, a replacement can be
purchased and programmed through
your dealer. When the replacement
transmitter is programmed to this
vehicle, all remaining transmitters
must also be reprogrammed.
Any lost or stolen transmitters
will no longer work once the new
transmitter is programmed. Each
vehicle can have up to four
transmitters programmed to it.
Battery Replacement
The battery in the transmitter is
weak and should be changed if it
does not work at the normal range
in any location.
Notice:When replacing the
battery, do not touch any of the
circuitry on the transmitter. Static
from your body could damage the
transmitter. To replace the battery:
1. Separate the transmitter with a
flat, thin object inserted into the
notch on the side.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery. Replace with a CR2032 or equivalent
battery.
4. Snap the transmitter back together.
Door Locks
{WARNING
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. When a door is
locked, the handle will not
open it. The chance of being
thrown out of the vehicle in
a crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
(Continued)

Keys, Doors and Windows 2-9
To open the swing‐gate, use the
door handle to pull the swing-gate
rearward slightly so it opens
automatically.
Vehicle Security
Vehicle theft is big business,
especially in some cities. This
vehicle has theft-deterrent features,
however, they do not make it
impossible to steal.
Anti-Theft Alarm System
This vehicle has a content
theft-deterrent alarm system.
The security light is located on the
instrument panel cluster.
To arm the system:
1. Close all the doors.
2. Lock the doors with the RemoteKeyless Entry (RKE) transmitter.
The security light flashes. If the lock button on the RKE
transmitter is pressed, but a door is
open, the doors lock, the lights may
flash and the horn may sound.
Close the open door to arm the
system.
The alarm goes off if a locked door
is not opened using the RKE
transmitter, or by OnStar
®.
A pre-alarm sounds the horn at
reduced intensity for 10 seconds.
Then, the front turn signal lamps
flash for two minutes, and the horn
sounds for two minutes. The alarm
then turns off to save battery power.
Start the engine to turn off the
alarm.
The theft-deterrent system does
not activate if the doors are locked
with the key, the manual door lock,
or power door lock switch. The
system can only be activated using
the RKE transmitter, or by OnStar.
See the OnStar Owner's Guide for
additional information. The vehicle
can be started with the correct key if
the alarm has been set off.

3-40 Seats and Restraints
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are
parts of the airbag system in
several places around the vehicle.
Your dealer and the service manual
have information about servicing
the vehicle and the airbag system.
To purchase a service manual, see
Service Publications Ordering
Information on page 13‑12.
{WARNING
For up to 10 seconds after the
ignition is turned off and the
battery is disconnected, an airbag
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.(Continued)
WARNING (Continued)
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Q: Is there anything I might addto or change about the vehicle
that could keep the airbags
from working properly?
A: Yes. If you add things that
change the vehicle's frame,
bumper system, height, front
end or side sheet metal, they
may keep the airbag system
from working properly. Changing
or moving any parts of the front
seats, safety belts, the airbag
sensing and diagnostic module, steering wheel, instrument
panel, roof-rail airbag modules,
ceiling headliner or pillar garnish
trim, overhead console, front
sensors, side impact sensors,
rollover sensor module, or airbag
wiring can affect the operation of
the airbag system.
In addition, the vehicle has a
passenger sensing system
for the right front passenger
position, which includes sensors
that are part of the passenger
seat. The passenger sensing
system may not operate properly
if the original seat trim is
replaced with non-Hummer
covers, upholstery or trim,
or with Hummer covers,
upholstery or trim designed for
a different vehicle. Any object,
such as an aftermarket seat
heater or a comfort enhancing
pad or device, installed under or

Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Windshield Wiper/Washer . . . . . 5-2
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-3
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power Outlets . . . . . . . . . . . . . . . . . 5-5
Cigarette Lighter . . . . . . . . . . . . . . 5-5
Ashtrays . . . . . . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-6
Instrument Cluster . . . . . . . . . . . . 5-7
Speedometer . . . . . . . . . . . . . . . . . 5-8
Odometer . . . . . . . . . . . . . . . . . . . . . 5-8
Trip Odometer . . . . . . . . . . . . . . . . . 5-8 Tachometer . . . . . . . . . . . . . . . . . . . 5-8
Fuel Gauge . . . . . . . . . . . . . . . . . . . 5-8
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . . 5-9
Safety Belt Reminders . . . . . . . . 5-9
Airbag Readiness Light . . . . . . 5-10
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-11
Charging System Light . . . . . . . 5-11
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-12
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-14
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-15
Up-Shift Light . . . . . . . . . . . . . . . . 5-15
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-16
Tire Pressure Light . . . . . . . . . . 5-16
Engine Oil Pressure Light . . . . 5-17
Security Light . . . . . . . . . . . . . . . . 5-17
High-Beam on Light . . . . . . . . . 5-17
Cruise Control Light . . . . . . . . . 5-18
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-18
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-21
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-21
Brake System Messages . . . . 5-22
Door Ajar Messages . . . . . . . . . 5-22
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-23
Engine Oil Messages . . . . . . . . 5-23
Engine Power Messages . . . . 5-23
Fuel System Messages . . . . . . 5-24
Lamp Messages . . . . . . . . . . . . . 5-24
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-24
Service Vehicle Messages . . . 5-25
Tire Messages . . . . . . . . . . . . . . . 5-25
Transmission Messages . . . . . 5-25
Universal Remote System
Universal Remote System . . . 5-26
Universal Remote System Programming . . . . . . . . . . . . . . . 5-26
Universal Remote System Operation . . . . . . . . . . . . . . . . . . 5-30

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.

5-12 Instruments and Controls
It should go out once the engine
starts. If it stays on, or comes on
while driving, there could be a
problem with the charging system.
A charging system message in the
Driver Information Center (DIC)
may also appear. SeeBattery
Voltage and Charging Messages
on
page 5‑21for more information.
This light could indicate that there
are problems with a generator drive
belt, or that there is an electrical
problem. Have it checked right
away. If the vehicle must be driven a
short distance with the light on, turn
off all the accessories, such as the
radio and air conditioner.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures that emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light comes on when the
ignition is on, but the engine is not
running, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer.
If the check engine light comes on
and stays on, while the engine is
running, this indicates that there is
an OBD II problem and service is
required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the service technician in correctly
diagnosing any malfunction.Notice:
If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the vehicle's fuel economy might
not be as good, and the engine
might not run as smoothly. This
could lead to costly repairs that
might not be covered by the
vehicle warranty.
Notice: Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of
the original tires with other
than those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by
the vehicle warranty. This
could also result in a failure
to pass a required Emission
Inspection/Maintenance test.
See Accessories and
Modifications on page 10‑3.