Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Toyota for this TSB. Call your local Toyota dealer's service department & ask for a copy of TSB# T-SB-0048-16.
TSB: SOME 2015 MODEL YEAR HIGHLANDER AND HIGHLANDER HV VEHICLES EQUIPPED WITH DUAL FRONT AIR CONDITIONING SYSTEMS MAY EXHIBIT AN INTERMITTENT BUZZING NOISE CONDITION COMING FROM THE CENTER OF THE INSTRUMENT PANEL DURING HVAC OPERATION. THE NOISE OCCURS DURING THE OPERATION OF THE LH AND RH AIR MIX SERVO MOTORS. THE REPAIR PROCEDURE IN THIS BULLETIN HAS BEEN DEVELOPED TO ADDRESS THIS CONDITION.
