Heated steering wheel and seat heaters heat the side grips of the steering wheel and seats, respectively. Seat ventilators maintain good ventilation using a fan built into the seats.
WARNING
NOTICE
Heated steering wheel
Turns the heated steering wheel on/off
The indicator light comes on when the heated steering wheel is operating.

■ Operation condition The heated steering wheel can be used when the power switch is in ON mode.
■ Timer The heated steering wheel will automatically turn off after about 30 minutes.
Front seat heaters
When any switch is pressed, the system is set to automatic mode and the "AUTO" indicator (green) lights up.
Each time the switch is pressed, the operation condition changes as follows.
Hi (3 segments lit) → Mid (2 segments lit) → Lo (1 segment lit) → Off
The level indicator (amber) lights up during operation.

■ Operation condition The front seat heaters can be used when the power switch is in ON mode.
■ When the air conditioning system is operating in S-FLOW mode If a passenger is not detected in the front passenger seat, the seat heater of the front passenger's seat will be turned off if on.
■ Customization Some functions can be customized.
Rear seat heaters
Each time the switch is pressed, the operation condition changes as follows.
Hi (3 segments lit) → Mid (2 segments lit) → Lo (1 segment lit) → Off
The level indicator (amber) lights up during operation.

■ Operation condition The rear seat heaters can be used when the power switch is in ON mode.
Seat ventilators
When any switch is pressed, the system is set to automatic mode and the "AUTO" indicator (green) lights up.
Each time the switch is pressed, the operation condition changes as follows.
Hi (3 segments lit) → Mid (2 segments lit) → Lo (1 segment lit) → Off
The level indicator (green) lights up during operation.

■ Operation condition The seat ventilators can be used when the power switch is in ON mode.
■ When the air conditioning system is operating in S-FLOW mode If a passenger is not detected in the front passenger seat, the seat heater of the front passenger's seat will be turned off if on.
■ Customization Some functions can be customized.
Rear automatic air
conditioning system (RX450hL)
Using the interior lightsLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Navigation System: Voice Recognition Microphone Disconnected (B1579)
DESCRIPTION The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines. This DTC is stored when a microphone connection detection signal line is disconnected. DTC No. Detection Item DTC Detection Condition ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen. HINT: The main body ECU (multiplex network body ECU) controls the items for the following systems that are customi ...