Adjusting the GMOS-LAN-09
AX-LCD adjustment
• Press and hold the "Return/ESC" button on
the LCD screen for 5 seconds until "Select
Interface" comes up.
• Select "Connection Type", and then press "Enter"
• Scroll up or down to "Gateway", and then
press "Enter"
• Once done, press the "Return/ESC" button
two times to get back to the main menu.
Chime Volume Adjustment
• With the vehicle on, turn it off and leave the
key in the ignition. Open the driver's door;
chimes will be heard.
• Wait 10 seconds, and then with a small
flat-blade screwdriver, turn the potentiometer
clockwise to raise the chime level;
counterclockwise to lower the chime level.
Note: The potentiometer is located on
the side of the interface where the 16-pin
harness with stripped leads is connected to.
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Installation instructions for GMOS-LAN-09
Chime Volume Adjustment (continued)
• When the chime level is at a desired level,
remove the key from the ignition. This will
lock the chime volume at its current level.
OnStar Level Adjustment
• Press the OnStar button to activate it.
• While OnStar is speaking, press the VOLUME
UP or VOLUME DOWN buttons on the steering
wheel to raise or lower the OnStar level.
OnStar Level Adjustment
• If the vehicle does not come equipped with
steering wheel controls, find the Black/
Yellow wire on the 22-pin harness.
• While OnStar is speaking, tap the Black/
Yellow wire to ground. Once the OnStar level
is set, it will stay at that level until the Black/
Yellow wire is tapped to ground again.
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IMPORTANT
If you are having difficulties with the
installation of this product, please call our
Tech Support line at 1-800-253-TECH.
Before doing so, look over the instructions a
second time, and make sure the installation
was performed exactly as the instructions
are stated. Please have the vehicle apart
and ready to perform troubleshooting steps
before calling.
K
NOWLEDGE IS
Enhance your installation and fabrication skills by
enrolling in the most recognized and respected
mobile electronics school in our industry.
Log onto www.installerinstitute.com or call
800-354-6782 for more information and take steps
toward a better tomorrow.
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certified technicians
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OWER