Hello I have a 2017 gmc sierra denali 2500 wondering how to adjust mileage on it, I have the digimaster 3.
Yanhua digimaster3 can support your model, you need to disassemble the chip of the instrument, find the chip of 25020 or 95020 to adjust the mileage.
25020 where to find that at inside the instrumental cluster?
Select the model on the digimaster3 device to enter the prompt picture. After you disassemble the instrument, find the corresponding position according to the prompt picture.
Please look at the following image, the plugs with red circle is needed to use.
Both adapters can be used, you can choose one of them