Yes, have camper already. Yes, that is the dry weight. Towed it already with the 2018 ZR2 diesel we had for 2 days, that the dealer let us take home & tow with. It towed it with no drama at all. I was impressed. Thought it would be constantly upshifting & downshifting, like most modern gas auto's do while towing. Not the case at all. It shifted great. Only 2 areas where I didn't like what it was doing: in the city @ 30 mph in D, & @ 55 mph on secondary roads in D (both while towing). Both of those situations caused the 2018 (used w/3000 miles) to lug a little bit. Both situations were easily remedied by either putting it in L & limiting the gear to 3 or 4 @ 30 mph, or using L & limiting the gear to 5 @ 55 mph. Using t/h mode worked also @ 55 mph. I found that using the t/h mode did reduce the mpg towing, to around 12-13. While just leaving it in D netted 15-16 mpg towing. We put 200 miles on the test truck that day, just towing our camper. Up & down the steepest hills we have around us & on the Thruway @ 65 mph. I suspect lower gears (higher numerically) 4.10's maybe, would eliminate this issue but at the cost of mpg.
I have not towed with our 2019 yet but suspect it will be pretty similar, maybe better. I loved our/my "Holy Grail" truck when everything worked right, but hated it when it didn't. 2008 Dodge Power Wagon w/G-56 manual shift. towed our camper like it wasn't even there but needed LOTS of work. We are retired now & repair & maintenance cost MUCH more for that truck vs the Coloraaaado. Old truck got 6-10 mpg, empty or towing 10,500 lbs, didn't matter. The ZR2 is getting around 23-24 mpg empty & hopefully 15-16 towing. thats like a 140% increase in mpg, lol. The thing that is the hardest for me to deal with right now is simply the size difference. But I am adjusting. Love the truck so far. Love the ride. Hitting large potholes would throw my last truck into the other lane. This one just takes the hits so much better. I suppose $6000 in shocks would make the old PW take the hits better too though, lol.