Can i tow a 2011 GMC sierra 1500 behind a motor home?

There are three possible ways to flat tow this vehicle without destroying your transmission:

• If it has a manual transmission (which I'm not sure if they were available on GM pickups for that MY), put it into neutral. This will not work with an automatic transmission.
• If it is a four wheel drive and has a transfer case with a neutral option (manual transfer cases and the four button electronic transfer cases do; three button electronic transfer cases do not), put that in the neutral position.
• If neither of those conditions are applicable to your vehicle, you'll have to remove the driveshaft.