Update... took the truck in Wednesday and they replaced the MAF sensors. Drove it around for a bit and work like I just drove it off the lot. Today it started grade braking again... back to the shop I go...
Update for anyone with similar issues. We made it home safely but had a few more issues. I have resorted to turning off the grade braking manually by holding down the trailer button for a few seconds. I took it out of auto and stayed in 2wd mode, still turning like 4wd is engaged. Cruse control decided to automatically turn off on me randomly and also didn't work for 1/2 the trip. Thanks everybody for the replys. I did not reset the computer as I want all the info there when the dealer looks at it, i dont think they will see anything though as I'm not putting out a CEL. I will be calling my dealership tomorrow. I just cant believe at 30000 miles this truck that i baby is going to crap...
Thanks for the reply. I do notice that the truck drives better when I drive it mad. I'm going to take it to the shop when I get back home. Yesterday it acted just fine... it's really weird. How did you manage 27mpg?! At best I get 19 on our 5 hour trip each year.
So I am currently on vacation 300 miles from home. My truck is a 16 1500 Z71 and has about 33000 miles on it and all of the sudden driving on a flat surface grade braking will enable. The truck is also shifting randomly and violently. Sometimes when making turns in auto mode it will feel as though the 4wd system is engaged. Anyone else encounter these issues? Anyone might know what could wrong that I can fix real quick while I'm away?
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