Some 2017-2019 Toyota Tacoma trucks equipped with the BD20 differential (non-TRD) may exhibit a noise or vibration at the rear of the vehicle at low speeds or while braking. This condition may be caused by excessive clearance between the brake drum and axle drum flange.
Toyota Says Tundra May Have Trailering Issue
2018-2019 Toyota Tundra trucks equipped with a 5.7L engine and integrated trailer brake controllers may exhibit an intermittent “Trailer Disconnected” message in the combination meter while towing a trailer. The brake control relay with bracket should not be replaced as part of this bulletin. It will be necessary to reprogram the PCM with software version 14.00.019 or later using Techstream 2.0 or Techstream LITE.