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Hummer H1 (2006+). Manual - part 354

12-92

Electrical System

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Raise the window.

Remove the door trim panel.

Remove the vapor barrier (Figure 12-63).

Detach the door harness connector from the door actuator.

Remove the actuator attaching screws.

Remove the actuator from the door and disconnect the actuator rod from the clips and actuator.

Installation

NOTE: The color coding on actuator rod is positioned away from the actuator during installation. The actuator rods are color
coded as follows: left front, red; right front, green; left rear, yellow; and right rear, blue.

Connect the clip and actuator rod to the lock lever (Figure 12-63).

Install the opposite clip on the actuator and connect the rod to the actuator.

Secure the actuator with the mounting screws.

Connect the harness wires to the actuator.

NOTE: The vapor barrier must be completely sealed at all edges to prevent water entry into the interior of the vehicle.

Install the vapor barrier.

Install the door trim panel.

Figure 12-63: Door Lock Actuator Removal

Remote Entry Receiver Replacement

Removal

Remove the glove box to gain access to receiver (Section 10).

Disconnect the two receiver harness connectors from the receiver (Figure 12-64).

Remove the receiver from the two velcro strips.

Installation

Install the receiver on the two velcro strips.

Connect the receiver harness connectors to the receiver.

Program the receiver to accept the remotes.

LOCK

LEVER

ACTUATOR

HARNESS

CONNECTOR

CLIP

ACTUATOR

ROD

CLIP

DOOR

HARNESS

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Electrical System 12-93

Check the remote entry system for proper operation.

Install the glove box (Section 10).

Figure 12-64: Remote Entry Receiver

KEYLESS ENTRY SYSTEM OPERATING INSTRUCTIONS (FIGURE 12-65)

Figure 12-65: 3-Button Transmitter and 4-Button Transmitter

Remote Entry Transmitters Operation

There are three basic functions to the standard 3 button transmitter: lock the doors and arm the theft deterrent system, unlock the
doors and disarm the theft deterrent system, and activate the panic alarm. If a replacement transmitter is ordered it will contain a
forth button for activation of a garage door opener. The 4 button transmitters function the same as the three button transmitter. The
forth button is inactive unless a receiver is installed in the garage door opener.

REMOTE ENTRY MODULE

CROSS BODY HARNESS

ENGINE COVER

CONSOLE

CONNECTOR

REMOTE ENTRY

KEY FABS

LOCK BUTTON

UNLOCK BUTTON

PANIC BUTTON

LOCK BUTTON

PANIC BUTTON

GARAGE DOOR

OPERATION

UNLOCK BUTTON

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Electrical System

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Locking the Doors

To lock the vehicle doors, press the lock button on the remote transmitter once. A red L.E.D. on the remote transmitter will illuminate
while the button is depressed, indicating that the remote transmitter is functioning. The vehicle parking lights will flash once, and the horn
will beep softly to confirm that the command was recieved.The theft deterrent system arms at this time. The theft deterrent system will
beep the horn and flash the lights if any door is opened before disarming with the remote transmitter by unlocking the doors .

Unlocking the Doors

When approaching the vehicle press the unlock button on the remote transmitter once. This will unlock the drivers door. The vehi-
cle lights will flash 2 times, and the horn will beep twice softly to confirm that the command was received. The interior lights will
turn on and remain activated for approximately 30 seconds, and the theft deterrent system will disarm. To unlock the remaining
doors, press the unlock button on the remote transmitter a second time.

Panic Activation

The panic feature can be used to activate the vehicle audio and visual theft deterrent features to draw attention to yourself during an
emergency situation. Simply press and hold the PANIC button for 3 seconds. This will cause the vehicle horn and lights to pulse on
and off for approximately 30 seconds. To deactivate the panic feature before the time period expires, press and release the panic
button.

Optional Garage Door Accessory Package

The Garage Door Accessory Package provides the owner with the ability to operate their existing garage door opener with the same
keyless entry remote transmitter used to open and lock your HUMMER H1. This system includes two 4-button remote transmitters
and a garage door receiver that must be installed in your existing garage door system. The package must be purchased from a
HUMMER dealership and the remote transmitters programmed to the HUMMER H1. Installation of the garage door receiver is the
responsibility of the HUMMER H1 Owner.

Synchronizing the Remote Transmitters

If the keyless entry remote transmitter is operated 50 times or more outside the range of the vehicle, the remote transmitter codes
will not match the code that the receiver expects. If the remote transmitter does not activate the lock system, and the batteries are
not dead, the remote transmitter may need to be synchronized with the receiver. Stand close to the vehicle and press the lock button
twice within one second. If there is no response, try pressing the button twice faster, then slower. If there is still no response, the
system must be checked.

Battery Replacement

It is suggested that the batteries in your remote transmitters be replaced every 12 months to maintain optimum performance.
Should the remote transmitter range begin to decrease or the red L.E.D. on the remote transmitter stop functioning, the battery will
need to be replaced.To replace the batteries:

Remove the phillips screw from the back of the transmitter

Carefully pry the top of the transmitter away from the bottom.

Remove the old battery making note of battery polarity.

Replace the old battery with a new GP27A type.

Assemble the remote transmitter.

PROGRAMMING NEW OR REPLACEMENT REMOTE TRANSMITTERS

Programming The Keyless Entry Remote Transmitters

You should have access to all keyless entry remote transmitters that will ultimately operate the unit, even if they are currently pro-
grammed to do so.

Each keyless entry receiver module will learn and store up to four different remote transmitter codes. When a fifth remote transmit-
ters programmed, the first remote transmitter that was originally programmed to the unit will be bumped out of the system mem-
ory.

To start programming, make sure that the Theft Deterrent System is disarmed, either by using a remote transmitter that is cur-
rently programmed, or by using the The Deterrent System Override procedure explained in the operating instructions.

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Electrical System 12-95

Gain access to the programming push-button switch located on the keyless entry control module, which is mounted under the
glove box of the vehicle.

Turn the ignition key to the ON position.

Within 15 seconds, press and release the programming switch 3 times. The vehicle horn will sound one time indicating that the
system is in program mode

Press and hold the LOCK button on the remote transmitter until the vehicle horn sounds one long chirp.

Repeat step 5 for all the remote transmitters that you wish to program (up to four).

Turn the ignition key to the OFF position, or wait 15 seconds, and the system will automatically terminate the programming
mode. This is indicated by a 3 chirp signal from the vehicle horn.

Remote Transmitter Programming Hints

1. If you wait more than 15 seconds between steps In the programming mode, the system will automatically terminate the program-
ming mode. This is indicated by the 3 chirp signal from the vehicles horn. Simply start over to complete programming of all remote
transmitters,

2 Test all programmed remote transmitters to be sure that all buttons are operating, Remember the system will not remotely lock
the doors while the ignition key is in the ON position.

Keyless Entry Remote Transmitter Troubleshooting

If the customer's complaint indicates a gradual decrease in range of the remote transmitter, or intermittent operation of the
remote transmitter, the battery may need replacement. The red Light Emitting Diode on the keyless entry remote transmitter
should illuminate brightly when a remote transmitter button is pressed.

The remote transmitter may operate when the battery voltage drops below 4.0V DC, however range and reliability will be
sacrificed at this level. When this same battery is measured under load, the voltage will drop close to or below the 3.0 VDC
level. Battery replacement is usually recommended when the voltage drops to or below 5.0 VDC with no load.

If the battery voltage is at an acceptable level, but the remote transmitter will not activate the system, it may need to be
synchronized. To re-synchronize the remote transmitter to the receiver, stand close to the vehicle and press and release the
LOCK button 2 times within one second. The vehicle's horn should chirp one time indicating that you have locked the doors
and armed the system. If re-synchronizing does not work on your first attempt, try again slower, then again faster.

FEATURES OF THE KEYLESS ENTRY AND THEFT DETERRENT SYSTEM

Anti Lockout Feature

When the doors are locked using the lock switch on the door panel, and the ignition key is in the ignition switch lock cylinder and
a front door is opened, the driver’s door will immediately unlock. This prevents accidentally locking the keys in the vehicle.

Horn Chirp

This feature chirps the horn when the doors are locked and unlocked. The 1 chirp (LOCK) and 2 chirp (UNLOCK) are only active in the
security mode. When the unit is in the keyless mode, only the parking light flasher will indicate lock and unlock.

In the security mode, the arm and disarm chirps can be turned on and off To disable the horn chirp:

Press and release the unlock button on the remote transmitter button once.

Open the drivers door and leave it open.

Turn the ignition “ON” then “OFF” 5 times in 5 seconds. Do not start the vehicle.

When the key is turned on for the fifth time, the horn will chirp twice to indicate that the feature has been disabled.

Turn the ignition off and test the system with the remote transmitter

To activate the horn chirp, repeat the procedure.

Selectable Features

Some of the features of the keyless entry and theft deterrent system can be tailored to the needs of the owner.The following is a list
of alterable features included in the HUMMER H1 remote entry system

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