2019ArkansasSierra

Well - that is the camera plug that comes with the truck (if it had the optional camera). The other end may just be the one under the bumper before it attaches to the combination plug on the truck itself. I’ll check. Mine didn’t have the “inside” trailer camera plug attached to the combination plug. It’s secured under the rear bumper - and you can see the empty space where it goes in the other pic I highlighted in red.

It did not work without the camper being hooked up as well. Not sure how the wiring goes - but I would think if you plugged one of the 7-pin test connectors up, and the camera it might work. I don’t have a test connector. POLLAK 12741EV 7-Way Circuit Tester

It wouldn’t let me set mine up without it being connected - but I will let you know tomorrow. I have set it all up, and will simply connect only the cam tomorrow and let you know.

Ok. It works. On mine - haven’t had him come over and hook up to it yet. I did install of cam on camper - followed instructions - and another person’s recommendation on connections. As I didn’t want to remove existing camera mount (mount only - no cam) which was wider and would have shown holes or had me patch and match - I mounted cam base above existing. Once it was centered and aligned - I temporarily ran cable to back of truck. Had truck off. Completely “dead”. No ticking, clicking or noises. Connected camper wiring. Connected camera to right side plug above camper plug. Started truck - set up camper profile to include tire pressure settings (had them already installed from my 19). Checked rear of trailer camera view from home screen and it worked. Still does not work from in the trailering app on truck. Can see the icon for both the cam on rear of trailer or one for inside trailer (which I don’t have). Push one for rear of trailer and is tells me to connect it. Oh well. I can see it fine from selecting cameras from the home screen. Maybe tomorrow I’ll have my buddy come over with his 2020 3/4 ton Denali with the technology package and give it a try. (I have not yet moved camper to test how long you’re able to view while I’m going down highway).

Ok - I didn’t do all that - but the truck did recognize something was hooked up. I tried to view and it only showed the view from the tailgate cam, not both. I still had the aux coiled up and it was resting on the tongue of the flatbed trailer. Had it not been nasty weather - I would have been more determined to get it going. Next “decent” day I’ll give it another shot. Thx for reply about your experience. Owners manual is less than helpful at this point.

Ok. No real news. Took cam - neither truck recognized it. It looks like it has to be set up on top of the trailer or camper. There are instructions to set it up in the center of the camper/trailer and to ensure the lens is angled at 35*. Makes sense since it’s supposed to “see through” the trailer. Tried connecting his trailer thinking it may need to see a trailer there with the light hookup and even created a profile for the trailer. Nope. Tried both cam inputs. Left and right. Nope. That I thought for sure would work because one was supposed to be inside the trailer. It was sleeting and freezing rain on us for the appx 45 minutes we were messing with it. I’ll just wait and install it on the camper and do it right. Once it’s hooked up and working - we will try his truck out on it. Sorry!

Well. I have the package and the camera on my 2020 NHT SLT. I have a buddy with a 2020 Denali 3/4-ton that has the connection as well - but since his has the 360* cameras, his didn’t come with the separate cam. I will go see him tomorrow and take my cam and we will just try it out.

I got my truck back Thursday afternoon. Friday morning - a new problem arose. “Learning remote - please wait”. After I had started it at the dealer (with remote) and driven home - and started it (without remote) on way to get gas. Started it once more after getting gas on way to work. Ready to leave work - won’t start with button on dash. Will with remote - but truck won’t recognize remote to let truck “energize” or whatever. Sent text to service advisor and salesman to get a wrecker, bring me a loaner and come get this POS. They did. Friday afternoon I traded that lemon back to them. Guess I should change my screen name to 2020ArkansasSierra now.

I took my truck into dealer for this exact issue. Sometimes it would go off 5 times in 10 seconds. Sometimes not 5 times in 5 days. Dealer got truck - said it was front passenger seatbelt pre-tensioner. They had to order and replace the whole seatbelt. Ok. Couple weeks waiting for it to arrive then get changed. Got that done. Happened again. Took it back to dealer - Dec 10th. I haven’t seen my truck since.