The heater would not provide hot air. I pushed in on the switch and the heat would work as long as I held the switch pushed in (not designed to be pushed - rotary selector). Eventually, even pressing the switch in would not work. I went on line and found a discussion blog that discussed my exact issue. I followed the recommendation and pulled the face cover off, removed the control panel and discovered exactly what had been described - a broken single strand wire that ran to the back of the switch. I attempted to make the repair using a multi-strand wire as recommended because the dealer repair option was $1,000. The heater appears to work -slightly, but now I have no ac. I think the circuit board was damaged by the soldering iron heat. Because we live in the seattle area, this causes issues with the window defogger as well as having no ac.

- Bonney Lake, WA, USA

Failure of 55904-48210 HVAC controller on a 2002 Toyota Highlander. The failure of this part cause the heating and cooling control dial to become inoperative. The vehicle could only blow cold air causing my windshield to fog over. This resulted in my being unable safely operate the vehicle.

- Saint Louis, MO, USA

Please include and consider this complaint in your upcoming meeting.re: Design defect  heated air from venting system Toyota Highlander I am an owner of the 2002 model. The air from the air venting system is always heated. Recently, the local dealer confirmed my findings. The air exiting from the venting system is unnecessarily heated for an added 6 to 9 degrees. The cabin is 6- 9 degrees hotter than the outside. This is a design defect. Their explanation is that the air vent duct pulls air through next to the engine. And in the process heated the vented air.I was told to use the air conditioning system to solve this problem.however, I am puzzled by this design deficiency. Due to this design defect, I am wasting ac and fuel efficiency. Please help me look into this problem. F. fung san francisco, California.

- Sf, CA, USA