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REV. 3/18/2021 INSTAXDIS-GMLN31

STEERING WHEEL CONTROL SETTINGS 

(CONT)

Dual assignment instructions (long button press)

The AXDIS-GMLN31 has the capability to assign (2) functions to a single button, except Volume-
Up and Volume-Down. Follow the steps below to program the button(s) to your liking.

Note:

  

Seek-Up and Seek-Down come pre-programmed as Preset-Up and Preset-Down 

for a long button press.

1.

  Turn on the ignition but do not start the vehicle.

2.

  Press and hold down the steering wheel control button that you want to assign a long press 

function to for about (10) seconds, or until the L.E.D. flashes rapidly. At this point release the 
button; the L.E.D. will then go solid.

3.

  Press and release the Volume-Up button the number of times corresponding to the new button 

number selected. Refer to the Dual Assignment Legend. The L.E.D. will flash rapidly while the 
Volume-Up button is being pressed, and then go back to a solid L.E.D. once released. Go to the 
next step once the Volume-Up button has been pressed the desired number of times.

Caution:

 

If more than (10) seconds elapses between pressing the Volume-Up button, this 

procedure will abort, and the L.E.D. will go out.

4.

  To store the long press button in memory, press the button that you assigned a long press 

button to (the button held down in Step 2). The L.E.D. will now go off indicating the new 
information has been stored.

Note:

  

These steps must be repeated for each button you would like to assign a dual 

purpose feature to. To reset a button back to its default state, repeat Step 1, and then 

press the Volume-Down button. The L.E.D. will go out, and the long press mapping for 

that button will be erased.

Dual assignment legend

1.  Not allowed
2.  Not allowed
3.  Seek-Up/Next
4.  Seek-Down/Prev
5.  Mode/Source

6.  ATT/Mute
7.  Preset-Up
8.  Preset-Down
9.  Power
10.  Band

11.  Play/Enter
12.  PTT
13.  On-Hook
14.  Off-Hook

15.  Fan-Up *
16.  Fan-Down *
17.  Temp-Up *
18.  Temp-Down *

* Not applicable in this application

Summary of Contents for AXDIS-GMLN31

Page 1: ... A P retained accessory power Provides NAV outputs parking brake reverse speed sense Retains audio controls on the steering wheel Non amplified models only Rearview camera retention Retains balance and fade Micro B USB updatable AXDIS GMLN31 interface AXDIS GMLN31 harness 16 pin harness with stripped leads Female 3 5mm connector with stripped leads TOOLS REQUIRED Wire cutter Crimp tool Solder gun ...

Page 2: ...onnect the Light Green wire to the parking brake wire Tape off and disregard the following 5 wires they will not be used in this application Blue White Green Green Black Purple and Purple Black From the AXDIS GMLN31 harness to the aftermarket radio Connect the Black wire to the ground wire Connect the Yellow wire to the battery wire Connect the Green wire to the left rear positive speaker output C...

Page 3: ...must be updated to rev 2 1 4 or higher software Universal 2 or 3 wire radio Connect the steering wheel control wire referred to as Key A or SWC 1 to the Brown wire of the connector Then connect the remaining steering wheel control wire referred to as Key B or SWC 2 to the Brown White wire of the connector If the radio comes with a third wire for ground disregard this wire Note After the interface ...

Page 4: ...many Red flashes there are This will help in troubleshooting if need be Refer to the L E D feedback section for more information After a couple seconds the L E D will turn on solid Red while the interface auto detects the vehicle The radio will shut off at this point This process should take 5 to 30 seconds Once the vehicle has been auto detected by the interface the L E D will turn on solid Green...

Page 5: ...es Alpine 8 flashes Visteon 9 flashes Valor 10 flashes Clarion Type 2 11 flashes Metra OE 12 flashes Eclipse Type 2 13 flashes LG 14 flashes Parrot 15 flashes XITE 16 flashes Philips 17 flashes TBD 18 flashes JBL Continued on the next page Changing radio type If the LED flashes do not match the radio you have connected you must manually program the AXDIS GMLN31 to tell it what radio it is connecte...

Page 6: ...D will then go out The Volume Up button has now been programmed 4 Follow the list in the Button Assignment Legend to reference the order in which the steering wheel control buttons need to be programmed Note If the next function on the list is not on the steering wheel press the Volume Up button for 1 second until the L E D comes on and then release the Volume Up button This will tell the AXDIS GM...

Page 7: ...e Up button is being pressed and then go back to a solid L E D once released Go to the next step once the Volume Up button has been pressed the desired number of times Caution If more than 10 seconds elapses between pressing the Volume Up button this procedure will abort and the L E D will go out 4 To store the long press button in memory press the button that you assigned a long press button to t...

Page 8: ...ds MECP certified technicians Having difficulties We re here to help Contact our Tech Support line at 386 257 1187 Or via email at techsupport metra autosound com Tech Support Hours Eastern Standard Time Monday Friday 9 00 AM 7 00 PM Saturday 10 00 AM 7 00 PM Sunday 10 00 AM 4 00 PM TROUBLESHOOTING Resetting the AXDIS GMLN31 1 The Blue reset button is located inside the interface between the two c...

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