We purchased an 1172 new built in Sept. 2021. We found that some items are 2023 so we know ours was one of the last built. I've answered what we experienced below, hope it helps. Remember that some items are not Lance.
1)Valve for black water tank, the bottom needed to be opened
Ours leaked so we bought an additional clear valve to assure it stayed sealed.
2) front cover of the awing flew of in strong winds, still waiting for the replacement
Ours did this on the initial drive home. Lance sent us a set and the awning folks sent us a set. Both blamed each other. The same thing happened on our Class C we had.
3) Leaking water heater
No issues
4) Batteries
No issues and a dealer problem not Lance
Not to talk about this topic.
1) Bathroom closes shut dependent on temperature and humidity in Camper
Ours wouldn't stay shut, we were able to make an easy adjustment.
2) Shelf in cabinet is too short and fall down until I replaced it
No issues
3) Position LED lights in the back half are not working anymore
No issues
4) multiple part like the jacks and other metal pieces are starting to rust.
No issues
OUR ISSUES
Our Dometic Refrigerator stopped working twice. We have a level inside the fridge to make sure we camp with it level. Dometic is Norcold and after a few weeks they sent the dealer in Houston the coolant part which the dealer miss wired. We took it to a shop in Round Rock where they found it miss wired and I'm not sure what else but they corrected it and installed the fans we purchased. Norcold told us in our hot climate we need air movement behind it. We bought two sets of fans, one for the bottom inlet and one for the top. Our freezer set on 7 runs at -4 degrees and the fridge at 34 degrees. The Round Rock dealer had never used the fans we purchased but will from now own. We researched and bought them on google. They are Beech Lane and fit inside the Dometic outer doors. Anyone can install these but since it was at the shop we had them do it. The bottom fan brings air in and the top fan moves it out. We still have the one that was installed in the TC. Each set has two 5 1/2" ball bearing fans on it and are quiet.
We had a small seal inside above the refrigerator that came off and isn't needed. The curved wood above the dinette wasn't nailed in and had a 1/4 inch gap. We know ours was built in the third quarter of 2021 and worse yet, built in californication. The government there is part of the issue. We scheduled a tour and weren't able to go because of covid. We wonder how a beautiful state could elect so many idiots.