Recirculated/Fresh Air Modes Switch without User Input [11/2021 - ]: Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. 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