Northeast4050

Thanks, I'll look into it and suggest the dealer do the same.

All recalls done thus far...maybe something else will come out that will be the magical fix. Thanks for the suggestion, I appreciate it.

Good advice...I'm on #2 now and am good friends with a service manager at another and have been running it all through him too...he's thinking they need to send an engineer from GM to look into it. Giving the current dealer a chance to see what they come up with...I'm done with the "We reset everything it should be good now" answers.

Sorry in advance for the long winded post here, I am looking for help...and lots of it. I've got a 2019 AT4 with the 6.2l and it has been nothing but problems since I purchased it. It started early on in its life with the speedo having a mind of its own bouncing up and down when on cruise control but the truck wasn't actually changing speeds. The check engine light came on and it was brought to the dealer - cleared codes and couldn't replicate it and sent me on my way. Months later more issues - this time my low fuel light came on (had a full tank) followed by the service electronic stability control warning, a warning telling me steering assist was reduced and to drive with care along with the traction control off light and the check engine light. Brought it in to be checked and dealer said there were no codes and they could not duplicate the issue and sent me on my way. For whatever reason they wouldn't tell me why the check engine light was on. Less than two weeks later the transmission stopped shifting properly - 60mph and felt like the e brake was on, revving very high...check engine light came back on and had it towed back to the dealer. This time they found codes....A LOT OF CODES...they said a number of the modules were not talking to the ECM. They reset all of them, test drove it and said it was fine. The next morning they fired it up and it duplicated...the check engine light was back on with a number of different modules not communicating with the ECM. They were completely unsure what to do and called GM's tech line and they provided them an update for the ECM saying they didn't think it would fix it but it was worth a shot. They kept the truck a few more days, couldn't duplicate it again and returned it to me. Two weeks later (November 28) driving up the highway and the fuel light error comes back on along with all the steering and traction warnings. This time I also got trailer connection errors (but I wasn't towing a trailer). The check engine light came on but when I got to my destination all the lights turned off and it seemed ok again. Fast forward to today and as you may have guessed, driving up the highway and more issues. This time it was everything at once...every light I've seen and haven't seen on the dash, traction and steering warnings, reduced power, throttle wouldn't work...I limped it to the side of the highway and it died. Wouldn't start but everything electrically seemed to have power. Had it towed back to the dealer...and there it sits. I've attached a photo of today...it shows some of the lights that were on but not all...it kept resetting itself and new lights came on and off, it was very strange. Has anyone seen ANY of these similar issues and had any success working through them? I know its a lot...it really sucks. The first new truck in my life...my dream truck and it's been nothing but a problem. 16,000 miles, only 93 octane fuel as recommended...and I baby this thing. Thanks in advance...

Hey, I wish i did but I've got nothing. I submitted an idea to Leer through their website but haven't heard anything...

Here is it! Let me know if it works or not... 2019_06_02_16_47_02.pdf

I ordered the hypertech Speedometer Calibrators Inline - Part #730129 after installed my 35's...speedo was off by quite a bit at higher speeds and with a new truck i wanted it spot on. The calibrator was very easy to program and install and after checking with two difference GPS devices and a radar it is now spot on. Highly recommended.

Sorry been super busy. Trying to get it done for you asap.

Are you still looking for the instructions? I can provide if so...installed this past weekend, pretty straight forward

Keep us posted, this is super interesting and promising...I'd love to add it to my At4 with technology package

I can't say based on experience but I would be shocked if you couldn't just swap them...but I'm just basing that off previous generations of gm trucks not anything I've seen done as of yet

Yea I recognize the weight and really wanted the 285 70 18's for their 34" size and 59lbs but they were crazy expensive and the 285 75's were misordered by someone so the price was too good to pass up. Not to mention I had a set of tire chains from my Duramax that conveniently fit the 285 75's...it all worked out for me!

Did you get it alligned after the motofab lift? If not have you noticed your tires wearing unevenly?

Yes, 6.2L with off road performance package

Anyone have any thoughts or solutions on how to keep the factory rear HD camera (integrated into the third brake light and plays through the rear view mirror)working after adding a truck cap? Is there a wiring harness that can be added with an accessory camera? I ordered a cap then realized this will be a problem. Not a deal breaker, I need to keep my things dry but the camera is a pretty cool feature. Thanks in advance!