2013 2500 HD Denalli Truck

cornman you might look at your manual found out mine you put transfer case in neutral put in park turn key off pull key out and i can turn wheel and does not clock miles because the key is not on talked to a dealer they concured this as well worth looking at

Tow away! I tow a 13 Denali 3500 4x4, sb, srw all the time no problem. Put trans. and transfer case in neutral, key must be left in and switched to acc. for the steering wheel to turn, and yes the truck will log miles. Just make sure you have a good brakeing system on the truck!

ok i can get into neutral park key out still turn wheel but will it put miles on rig and does it matter how far i tow it ? called dealer as normal no one knows crap

http://www.gmc.com/content/dam/GMC/global/master/nscwebsite/en/home/Owners/Manuals/01_Images/13Sierra-Denali-Owners-Manual.pdf

Page 10-80
Flat towing:

If it's AWD, it's a hard "no".
2WD is also shown as a hard "no".
4WD seems to be OK since you can shift the transfer case into Neutral (10-81)

You can dolly a RWD or 4WD truck it seems.