Some 2016-2018 Explorer vehicles equipped with automatic temperature control and premium AM/FM/CD may exhibit a broken or missing temperature control switch. The driver and passenger switches are now available separately from the control head. Replacement of the control head assembly is not necessary. The switches are driver and passenger specific and must be installed in the correct location with the red heat indicator facing up. HB5Z-19986-AA - Drivers Side Switch, HB5Z-19986-BA - Passengers Side Switch