crankman replied to 2018GmcSierra1500's topic in 2014-2018 Silverado & Sierra TroubleshootingDid you double check it wasn't in 4 hi ? Anything is possible just a shot.
crankman replied to zmnypit's topic in 2015-2019 Silverado & Sierra HD TroubleshootingGlad to hear you fixed that, I shared your pain for quite a white on my 2015 tried pretty much everything including what you did. I solved mine with a cord strain relief that hold the weight of the trailer cord up. It was only on my Big Tex trailer that threw the check trailer wiring code they used a heavy guage thick black cord and it would eventually works it way just enough loose on the interstate to throw that code.
Rotate the tires back to the front as before see if vibration goes away. Had the same thing on my 1500 and the second I rotated the fronts to the rear the vibration disappeared on mine. Then I knew for sure one of my rear tires needed balancing.
Got it . I would think the truck controls would default to original setting, that is only a guess. Storing your batteries in your garage is a good idea. Might want to treat your fuel if its going to be a long storage. Any chance you could go over there couple times a month and just pull it out and let it warm up to operating temps? That would ave you from having to pull the batteries and allow some of the fluids to circulate.
I dont have them on my 2015 gasser. I tow constantly during the week but didn't want the the big mirrors. Just a personal thing i guess I can see fine with regular mirrors and I kinda wanted a sleeker look. Not knocking people with the larger mirrors at all I just didn't care for them.
Give them a chance to fix it and drive her again. You sound as if you have been happy with the truck so far, let it get repaired and see how you feel later. I went thru a transfer case bearing replacement early on on my 2015. I was bummed for a bit but that was over 2 years ago and i pull trailers constantly and not a bit of trouble since.
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