Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: System Description

SYSTEM DESCRIPTION

GENERAL

(a) The seat blower has 3 levels of volume, controlled by operating the refreshing seat switch.

(b) Whether the blower is on or off can be determined by checking if the refreshing seat switch indicator light is on or off.

(c) The blowers of both seats are controlled by the air conditioning amplifier assembly.

(d) Set the refreshing seat switch to AUTO and the seat heater and seat blower operate automatically according to the target outlet air temperature of the air conditioning system.

HINT:

  • In AUTO mode, the target seat heater temperature and seat blower volume are controlled according to the target outlet air temperature of the air conditioning system.
  • When the target outlet air temperature and the set temperature of the air conditioning system are the same, the seat heater and seat blower will stop operating. When the target outlet air temperature and set temperature of the air conditioning system are no longer the same, the operation of the seat heater or seat blower will resume.
    System Diagram
    SYSTEM DIAGRAM ...

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE SEAT HEATER SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function can be cu ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Freeze Frame Data
    FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever a DTC is detected, the multiplex network door ECU stores the current vehicle state as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the foll ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Can Communication System: Restraints Occupant Classification System Module Communication Stop Mode
    DESCRIPTION Detection Item Symptom Trouble Area Restraints Occupant Classification System Module Communication Stop Mode Either condition is met: "Occupant Detection" is not displayed on the CAN Bus Check screen of the Techstream. Click here Communication system DTCs (DTCs tha ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0103