TSB: SERVICE ACTION: DRIVER?S SIDE HVAC TEMPERATURE OPTIMIZATION (SA274) - This bulletin provides information related to the Heating Ventilation and Air Conditioning (HVAC) system on some 2017MY Sorento vehicles equipped with Dual Air Temperature Control (DATC) produced from August 1, 2016 to December 18, 2016, which may experience poor heater performance on the driver?s side due to a binding mix door. Follow the procedure below to repair and/or prevent the door from binding.
