2010 Mercury Mariner drivetrain & axles problems

Tl* the contact owns a 2010 mercury mariner which was being towed by a 2004 fleetwood tioga montara. While driving approximately 60 MPH, the contact noticed smoke coming from the hood. The motor home was pulled over, the contact opened the hood, and noticed that the transmission overheated without warning. The manufacturer was made aware of the failure and stated that the failure was a known occurrence with the transmission at approximately 50,000 miles. The failure mileage was approximately 56,000.

When driving at a slow speed of 20-25 MPH, the vehicle stopped accelerating and bucked a little. The wrench (powertrain) signal light up on the dash, so I proceeded to pull over, put the car in park, and shut it off. After a few minutes I turned it on again and all seemed fine, though the car was now slow moving and less smooth through shifting. The same thing occurred 9 days later, with the vehicle responding even more slowly afterwards.