Customtronix ICOS GMAX 3G conversion converts all the new GM cars with HMI 3.7 and 3.8 units (IOU) from 2022 and up manufactured by Harman Becker to EU standard. This product covers the Google Automotive version of GMs navigation system.
Supported languages for speech, voice and menus are English, Spanish, French, Italian, Dutch, German, Polish, Portuguese, Turkish, Russian, Romanian, Czech, Hungarian, Swedish, Finnish and Norwegian.
The radio will also be converted to support European style FM-frequencies. The HMI unit needs to be shipped to us in Sweden for conversion. (See photos)
The Google Automotive navigation relies on internet connectivity via your smart phone to continously download content for you. Please make sure to have your smart phone paired with your vehicle when using the navigation function to make everything run smoothly.
Please check this YouTube clip for more information: https://youtu.be/2M-YApUc0K4
Compatible vehicle brands; model year 2022 - up:
Important points about the conversion:
When ordering make sure to leave following info about your GM car.
We do not have access to GM's VIN number system and need it in clear text.
|Type of Technology||
HMI 2016-19 GM