2023 SR5 TRD offroad. As my post title says; when I try to back my trailer up my sloped driveway, I he truck will not accelerate and gives me a warning stating: Reduced acceleration- obstruction detected. When this happens, the truck will not put enough power out to back the trailer up my driveway, I will put thegas pedal to the floor, and it will not increase the RPMs. To state the obvious, there is no obstruction, it's my trailer that is attached to the truck. The only way I can get around this is to put the truck in 4 low. It's not a big deal, just super frustrating. Has anyone else had this issue? Does anyone have a simple work around for this? Edit: it's not the brakes, it is the truck that is limiting the acceleration. I know all about trailer brakes. The problem has nothing to do with the trailer itself, other than the fact that the radar is sensing it as an obstruction. I will try it in tow/haul mode next time, I feel like that should take care of the problem