A few weeks ago my wife messed with the ac as it was too cold for her. Ever since, I have to turn on the AC every time the truck is turned on. The dampers are all messed up as well. The passenger side vents blow fine but the drivers side air only comes out the defroster vents and occasionally the foot vents. Sometimes on the passenger side side as well. Any suggestions on where to start before taking the dash apart?
2011 lx570 dampers
- Thread starter bomberopm
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There are many threads on here about the issue. The first thing most members suggest is to disconnect the battery negative for a few minutes to see if that resets. There a service bulletin about it for later models, but the idea of using Techstream at a dealer to reprogram the HVAC motors (servos) will likely fix it. Don’t take the dash apart, since the history you noted doesn’t seem to indicate a part failure, but rather a software error. Run a search on Mud to find lots more info.
Have you verified the recirc flap works as intended? Don’t try to manipulate it by hand! Use the recirc button only.
- Thread starter
- #4
Thanks!
- Thread starter
- #5
I’ve tapped the recirc button many times since this all started. Nothing changes.
Have you done that with the filter access door open to see whether the recirc door is actually moving? If it doesn’t move that’s a good place to start.