2021 Grand Design Reflection

We have taken two trips with trailer and (Tow vehicle - 2021 Ram 2500). First trip in April 2021 of about 150 miles round trip no problems were encountered. Second trip in May 2021 with a round trip of 380 miles we had repeated instances of "Check Trailer Brake Wiring" and "trailer disconnected" appear on dash. These warnings would disappear after a few moments. When safe to do so after first instance (and the warning was off) I pulled off the road and checked connection and trailer brakes by engaging the emergency trailer brake switch and trying to pull away. It appeared that the trailer brakes held. This cycle continued for trip to and from RV park. This month, I made an appointment at the RV Dealer, hooked up the trailer, checked operation of turn signals and brake lights and checked that the trailer brakes would engage. They did. When pulling out of storage lot, the warnings appeared, I tried to engage the trailer brake emergency brake while the warning was still on the dash and found No trailer brakes. I proceeded to drive to the RV dealer and the warning disappeared and brakes seemed to function. While I believe the truck brakes will stop the trailer at slow speeds, I am worried about the situation at highway speeds. Trailer is at the dealer waiting in a repair queue. I had telephoned the Grand Design RV customer service line and was told they weren't aware of a problem. However, a friend with the same year and model trailer but a different tow vehicle has encountered the same brake warning issue.

The electric brakes on our brand new 2021 Grand Design Reflection 303RLS periodically go out. We get a warning through the brake controller that the trailer is disconnected or to "check trailer brake wiring." The warning will go away and the electric brakes will work again, only to have the problem return with the complete loss of trailer brakes. This problem occurred on our very first outing with the new 5th wheel trailer. We have contacted Grand Design customer service through telephone and email, but have received no response. We have scheduled a service appointment to have this issue investigated, but the service department at General RV in Huntley, IL has pushed out our appointment several weeks as they are quite busy. Having no brakes on a 5th wheel trailer that weighs close to 12,000 lbs. loaded is obviously quite concerning to us.

2021 GRAND DESIGN REFLECTION 29RS. CONSUMER WRITES IN REGARDS TO ISSUES WITH VEHICLES MANUAL. *LD THE CONSUMER STATED THE OWNER'S MANUAL NEEDS TO BE REVISED IN REFERENCE TO CHANGING THE VEHICLE'S TIRES. THE CONSUMER BELIEVED THE INFORMATION DID NOT REFLECT WHAT ACTIONS IT ACTUALLY WOULD TAKE TO CHANGE A TIRE ON THE VEHICLE. *JS