I had the same issue with my 2012. Turns out it was updating it but still saying update failed
Use gps and see where your speedo is setting. I bet its the same issue. Mine is within 2mph of my gps even after saying update failed. It was 7 off with 35s compared to stock

So am i one of the only few that can't change tire size? Just says tire size change failed

Fails to change tire size every time.. TM noticeably different, driving in slap shift mode the tranny shifts within milliseconds of me slapping it over.. Over all happy. Getting it to change my tire size and read what's causing my ESC light to be on would be major +'s

Your tools just in diablos demo mode. Plig into pc for power, tuning, scroll to restore original

My truck just says tune not written. Also wont change tire size

CLEARED MY ERROR CODE! That alone was worth the tuner.. damn dealership was gonna make me wait till next week to get me in to just hook up a reader? lol

Said my voltage was to low to tune. It is like 20 here and a few inches of snow so I'm letting the truck warm up now!

I don't have facebook.. haha I'll just watch the forums and look for where to sign up for the email.

Thanks!

When the 2012 update is actually available how will they go about advertising and where would be the first place to look?
This will keep me from refreshing a couple different forums every 4 hours throughout the day.

Sorry if that's a stupid question, I'm just new to diablo.

blahh I heard end of the week and was seriously hopeful for a release on my birthday. TODAY...At least an end to the wait is near and diablo has been helpful. I'm sure most their reps had nightmares of angry 2012 owners saying when when when...lol

Back to the 2012 hemi. No disrespect to either. But if I wanted to read about other cars I'd go to other forums. If I wanted to watch people bash each other I'd make a facebook account and stir trouble up on there. Just makes more garbage to read through to find what we need.

Already have my ...

Really appreciate it! I'll be checking this all day! Feels like christmas when I was a little kid. lol