Casaubond

Hi ColinBarber, possibly a Lexus quirk. No other car brand that I have travelled on actually blows cold air when the cabin temperature reaches its set point in cold climate - The usual observed behaviour is to reduce the blow of hot air to a minimum to maintain the temperature. I am messing with the fans to find an optimal position setting. When I go for the next service with Lexus I will raise this issue with them

Thank you, wharfhouse. Your answer suggests my car has a problem, possibly a software problem, as it works very well with plenty of nice heat when it starts and until the cabin temperature reaches the set climate temperature on the auto setting. In my case, once the cabin temperature is reached, active cold air- from outside is pumped into the car through the static vents especially (the ones used for demystifying). It is not for a few minutes only, it is most of the time cold air, and the temperature in the car is not dropping overall but the blow of cold air in the face is soooo annoying. If I raise the temperature lets say from 20 to 21 the air becomes hot again - so the system does work , not sure why is set to blow cold air once it reaches the set temperature I hope it is a software issue rather than some expensive failure of a sensor or such

Hi, Lexux 300h IS owner here, and I was shocked to find out the same problem, The car is 69 reg 300h F , and the climate works perfectly for the first 30 minutes or so, then when the temperature in the cabin gets to the set degree lets say 21, the cold air start to be pumped through the vents. No other previous cars did that? has any solution been found? do I need to contact the dealer?