mrwhaley12

My 2014 1500 LTZ crew cab started giving the "Service Trailer Brake System" message last summer while towing our camper during a heavy rain storm. Shortly after this message came in, I received a message saying the Braking System was Disabled. I figured it was our camper since it is 7 yrs old and didn't think much of it since it was our last camping trip of the yr and we were nearly home. In December I bought a new enclosed trailer and while towing the brand new trailer home the "Service Trailer Brake System" came on 3 times in 10 miles. I had the truck in for service and recall work in February before a long trip and had the dealer check it, the truck is still under it's Bumper To Bumper warranty with only 25000 miles. I was told there was no "Code" in my system so they wouldn't/didn't do anything more to fix it. A couple days later we headed out for our trip and the "Service Trailer Brake System" message chimed in 3 times in 2 minute with no trailer attached to the truck! I have put an additional 3000 miles (without towing) on the truck and the message has NOT returned since the beginning of our trip. The first time it happened conditions were very wet but both times since have been during dry weather. For me towing time is approaching and I need this fixed. Please offer any ideas I can forward to the Dealership. I have contact GM's Customer Service Team but have not heard anything in going on 2 weeks.