lots of error messages caused crash

[Andy Kifer]

I was hunting in the cold and snow in Utah. I tried to back up on a hill put in reverse tires spun loud pop and grind and loud spinning noise. All 4 wheel drive lights went off had no 4 wheel drive. put in drive, loud pop grinding noise loud spinning noise, and transmission  would no longer engage. Slid down hill over small embankment stuck. transmission  would not engage no 4 wheel drive lights  Error message included service transmission, transmission Service   ESC reduced engine power, brakes, trailer. and others. A hunter offered to pull me out put in neutral. After pulling me about a bit transmission came back. I drove it a bit 4 wheel drive came back. I turned it off and back on all Error messages were gone and truck ran fine. I took to the shop and there are no codes in the history so dealership and Chevy will not look for anything that caused the problem.  They say sorry no codes no help. IS there no history on the computers also can someone tell me what to tell the dealership that could tell Chevy what could have caused the problems. I am scared to death now to take it back into the mountains. 

[Eds240z06]

Do have Onstar? They would’ve received the error messages. Don’t know how this would help the dealership but at least it’s proof something happened. 

[BIGDOGx]

On 12/17/2019 at 10:23 AM, Andy Kifer said:

I was hunting in the cold and snow in Utah. I tried to back up on a hill put in reverse tires spun loud pop and grind and loud spinning noise. All 4 wheel drive lights went off had no 4 wheel drive. put in drive, loud pop grinding noise loud spinning noise, and transmission  would no longer engage. Slid down hill over small embankment stuck. transmission  would not engage no 4 wheel drive lights  Error message included service transmission, transmission Service   ESC reduced engine power, brakes, trailer. and others. A hunter offered to pull me out put in neutral. After pulling me about a bit transmission came back. I drove it a bit 4 wheel drive came back. I turned it off and back on all Error messages were gone and truck ran fine. I took to the shop and there are no codes in the history so dealership and Chevy will not look for anything that caused the problem.  They say sorry no codes no help. IS there no history on the computers also can someone tell me what to tell the dealership that could tell Chevy what could have caused the problems. I am scared to death now to take it back into the mountains. 

Is this a 4 banger silverado? Sounds kind of like the problems some were getting with a problematic harness?