I have a 2015 THOR Hurricane motor home and I had the Trimark lock. It broke twice. The first time, I climbed through the emergency window and remove the 4 bolts on the inside cover. Then I was able to take a flat head screwdriver and move the latch back so it would disengage and door could open. I called Trimark and complained about the latch they used. Half of it was plastic and the connecting other half was metal. The latch snapped at the connection plastic/metal connection point. Trimark was less than sympathetic. They told me that we shut the door too hard. But, she could sell me a new complete lock for $250. But, they were out of stock and it should be available in 2 to 3 weeks. I was 1000 miles from home. Luckily, I found one locally and got it installed.
The second time the Trimark lock broke, my wife was inside and I knew the problem. So, I walk her through the process of removing the screws and we opened the door. I again, called Trimark and told them the problem. And again, they were less than sympathetic. But this time, they told me that they fixed the plastic to metal latch problem with a total metal latch. I ask if I could get the new total metal latch only. I have 2 complete locks that would work fine if I had the new total metal latch. No! they could not send me or sell me the latch only. But; you guessed it, they could sell me the new lock for $250. I again was 1000 miles from home, so I bought a lock locally.
When I got home, I called Trimark again and complained. But this time, they told me that the lock was under warranty and they would send me "free of charge"' a new lock with the improved total metal latch.
I seen this same Trimark lock problem posted several times. I did not get a recall letter, but I hear there may be one out there.
So, if you have a Trimark lock, I would encourage you to call Trimark and give them the number on the back of the lock. If it is the old style, get it replaced. It is no fun trying to fix it when you are on the road.