Recirculated/Fresh Air Modes Switch without User Input [12/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.

If recirculation/fresh mode changes unintentionally and without permission, the following causes are possible.

Symptom	Factor
Recirculation/fresh mode changes without permission Recirculation/fresh mode light blinks	Customize setting* Change in ambient air temperature Decrease in refrigerant pressure Air conditioning pressure sensor circuit malfunction Engine coolant temperature (high)

*: except USA and Canada