change key battery HUMMER H3 2010 Owners Manual

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)

9-36 Driving and Operating
To prevent gear damage, this
system also prevents cranking if
the engine is already running.
Engine cranking can be stopped
by turning the ignition switch to
ACC/ACCESSORY or
LOCK/OFF.
Notice: Cranking the engine for
long periods of time, by returning
the key to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start
after 5‐10 seconds, especially
in very cold weather (below 0°F
or−18°C), it could be flooded
with too much gasoline. Push
the accelerator pedal all the way
to the floor and holding it there
as you hold the key in START
for a maximum of 15 seconds. Wait at least 15 seconds
between each try, to allow the
cranking motor to cool. When
the engine starts, let go of the
key and accelerator. If the
vehicle starts briefly but then
stops again, repeat the
procedure. This clears the extra
gasoline from the engine. Do not
race the engine immediately
after starting it. Operate the
engine and transmission gently
until the oil warms up and
lubricates all moving parts.
Notice: The engine is designed to
work with the electronics in the
vehicle. If you add electrical
parts or accessories, you could
change the way the engine
operates. Before adding electrical
equipment, check with your
dealer. If you do not, the engine
might not perform properly. Any
resulting damage would not be
covered by the vehicle warranty.Engine Coolant Heater
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below −18°C (0°F). Vehicles
with an engine coolant heater
should be plugged in at least
four hours before starting. An
internal thermostat in the plug-end
of the cord may exist which will
prevent engine coolant heater
operation at temperatures
above −18°C (0° F).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap
the electrical cord. The cord
is located in the engine
compartment behind the
underhood fuse block on the
driver side of the vehicle.