The U-Haul trailer we rented turned out to have defective brake lights and turn signals, and NO BRAKE PADS in the surge brakes. We discovered the lights first, and stopped along our route at a U-Haul provider to ask for help.
They said they didn't have anyone around who could fix that. We discovered the lack of brake pads when the metal-on-metal grinding made it nearly impossible to move the trailer. We waited in 95 degree heat for endless hours, and the "fix" was to back off the wheel a bit so it would grind less, but no pads were installed. We were just advised to drive carefully.
When we finally limped it to our destination and turned it in, the receiving office had absolutely no interest in the safety issues with the trailer. They will clearly rent it immediately to the next unfortunate person in line. They offered us a "VIP" certificate for $40 toward a future rental: obviously no such rental will be occurring.
UNSAFE. Don't use their equipment.
Review about: Uhaul Trailer Rental.