User Manual

GMOS-LAN-10

Installing the GMOS-LAN-10

Initializing the GMOS-LAN-10

With the key in the off position:

• Connect the 16-pin harness with stripped leads, and the GMOS-LAN-10

harness, into the interface.

• Connect the GMOS-LAN-10 harness to the wiring harness in the vehicle.

Note: If using the ASWC-1, connect it after you initialize and test the GMOS-

LAN-10, with the key in the off position.

Attention! If the interface loses power for any reason, the following steps will need

to be performed again. Also, if installing an ASWC-1 connect it after you initialize

and test the interface/radio, with the key in the off position.

• Turn the key (or push-to-start button) to the ignition position and wait until the

radio comes on.

Note: If the radio does not come on within 60 seconds, turn the key to the

off position, disconnect the interface, check all connections, reconnect the

interface, and then try again.

• Turn the key to the off position, and then to the accessory position. Test all

functions of the installation for proper operation, before reassembling the dash.

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.

• If the vehicle does not come equipped with steering wheel controls, locate the

Black/Yellow wire on the GMOS-LAN-10 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.

Adjusting the GMOS-LAN-10