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Posted

2015 GMC Yukon Denali, trying to flat tow for the first time and followed the instructions in the manual to shift transfer case into neutral, then it says to disconnect battery for towing.

Then upon reconnecting the battery the transfer case wont come out of neutral and it says service 4wd.

I've read this is a common problem and there was a software update that GM has to fix this?

I've also heard you can get it out by going through the procedure slowly with 30 seconds between each step, but that didn't work

Does anyone know any other way to get this transfer case out of neutral until I am able to get the software update?

 

Thanks.

Posted

Problem solved, I found this PDF on the IRV2 forums.  to get it out of neutral and to prevent it from getting stuck again by doing a few additional steps.

No software update required as long as you follow these steps.

Dinghy towing.pdf

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