I know you guys are always trying to keep up but man killing me.

OK maybe we can get a list of what people are running and the parameters used to get the speedo correct?
(this would be most appreciated by all if people would be willing to help)

Rim Size / Tire Size / Brand = setting that equaled ...

Ok so I have to keep adjusting the number in a trial or error sequence. This is crazy for a $500 device. Is there a quicker way to do this besides it having to update the tune everytime? Its hot in Texas and waiting 5 min in the heat each time I want to change this is getting old. Been at this for a ...

mikel wrote:OK, much as I suspected, this is actually a 2016 model, and this has been an issue with all 16 GM trucks, we are still looking into it.

Ok I have to chuckle a little here because my thread shows 2016 Silverado.

mikel wrote:post the VIN please.

3GCUKREC1GG223611
running 295/70r18 Toyo Open Country MT on a 6" Procomp Lift

use the height in inches option to make fine adjustments ot the setting to dial in the speedo.

Thanks

I stated I have already measured the side wall od to be 32.5". I have entered a range from 30 all way to 46 with no change. Very frustrating that this worked just fine on my last vehicle and ...

Not sure why this forum is even here because it is not monitored.

Ok so I figured out what I did wrong .. when I updated my Trinity I had to update the downloader. Well lets just say I forgot to change my tuner type before updating :crashing: .

So new problem ... I have played around with the tire sizes but can not seem to get my speed updated. I am 4-5 miles off ...

I had my Trinity on my 2007 Silverado 5.3. I returned it back to Stock Backup and did an update (for the first time). I could not find 2016 Chevrolet/GM but saw in a thread to use 2015 so thats what I did.

I plugged it in to the port and agreed. I popped up "Current Calibration Not Supported ...