While driving my vehicle in four-wheel-drive low, with no lockers engaged I noticed that the rear wheels at different times were dragging, I could also hear and feel the ABS module actuating. During these events I would have diminished breaking capabilities and no ABS warning lights. it was doing it under 5 miles an hour at first and then higher speeds. I got a service ABS, service traction control, service stability control, four-wheel-drive unavailable, service four-wheel-drive system Messages all of a sudden, and i disengaged the four-wheel-drive lover back to 2 Wheel Drive. At this point the brake pedal was hard and would not move, my back left wheel was completely locked. I shut the vehicle down waited a few minutes and restarted it, all of the lights were still active but I was able to move the vehicle. I began traveling forward and the rear wheels alternated locking up. I started backing up to move to a safe position, the brake pedal became hard and I was unable to stop causing my vehicle to collide with a wall, speed was below 5 miles an hour but still caused damage to my left rear quarter panel and fiberglass top. After we assessed the damage, I put the vehicle in 2 Wheel Dr., disconnected the battery for 30 minutes, and was able to drive the vehicle to a parking lot in 2 Wheel Dr. After this point and not having phone service, use a satellite communicator to call a local off-road recovery nonprofit that I volunteer for, they were able to assist in bringing a trai