Troubleshooting Guide

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

If the MIT unit is still not working properly after following the below troubleshooting, the unit is malfunctioning and should be repaired or replaced.

Unit not Working

Verify the MIT is powered on correctly as indicated by the green Power LED.
If Power LED is not illuminated, verify USB power source is working properly.
If USB power adapter is being used to power the MIT, check and, if necessary, replace the fuse in adapter.

Problem with Aux/Line-In Test

Verify Aux/Line- In test cable is inserted properly into the vehicle audio input jack. Verify the MIT is in Aux/Line-In mode as indicated by the red AUX LED.
Verify the vehicle audio system is in Auxiliary or Line-in mode. Verify the vehicle audio system volume is turned up and not in mute mode.

Problem with USB Test

Verify MIT is in USB mode as indicated by the red USB LED. Verify the vehicle audio system is in USB mode.
Verify the vehicle audio system volume is turned up and not in mute mode.

Problem with Bluetooth Pairing

Delete previous devices stored in the device list of the radio and the pair the MIT
Remove USB cable, and then reconnect to reset the MIT. Carefully follow the bonding instructions for the correct Passkey procedure.

Problem with Bluetooth Test Call Audio

Verify the MIT is paired with the vehicle. This is indicated by the quick flashing Bluetooth LED.
Audio system should have indicated the MIT is bonded.