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Toyota Repair/AC temp control knob


I have a 2005 Toyota Highlander which has 170k miles.  For the last couple of years, the knob that is supposed to change the temperature for the AC does not work.  If you keep turning it to the left or right, it will eventually change but lately, it is not changing at all.  Any help/guidance you could offer would be greatly appreciated.  I took it to the Toyota dealer and was told the whole panel behind the control knobs needs to be replaced which is about $600.  Is that true or do you know of any other options?


Hello, have you checked that control knob ids not loose, if it feels loose pull it off and tighten the mounting nut, the nut completes a ground circuit, if loose for too long the bad ground can burn out the control panel assembly, so if tightening it doesn't work then the panel needs to be replaced.

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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