I got about another 55k more than you on my srt6 so maybe I can shed some light. The RCM box has had a history of broken solder joints, however beyond that, some of the relay contacts may tend to burn up which can trigger some of the issues you are seeing. New units can be found online for around 200.00, scrap yards might get them to you for as little as 50.00 since they don't really know what they are.

At 110k you should be considering a few things: a complete suck out and flush of the coolant system including running some cleaner through there and adding in some water pump lubricant, and check the pulleys and belts for wear and proper tension.

The light bulb that has been the most problematic for me over the years is the rear license plate bulbs due to the fact that the panel that holds the wing routes water down to a set of holes next to the sockets. If someone has installed HID or low impedance bulbs in the headlights that too can trigger the dash light.