SEAT HEATER SYSTEM OPERATION CHECK


  1. CHECK SEAT HEATER (for Front)


    1. Turn the power switch on (IG).

    2. Press the "Seat/Steering" switch on the multi-display sub menu screen.

    3. Check that seat heater operation switches in order from AUTO → HI → MID → LO → OFF and that the AUTO indicator light and level indicator light turn on/off with each press of the seat heater switch on the [Setting] screen.

    4. Check that the seat surface heat changes according to the level indicator light illumination condition when the seat heater switch is operated.

    5. Check that the level indicator light switches from HI → MID → LO and that the seat surface heat changes according to the air conditioning temperature setting when the seat heater switch is operated with the seat heat set to AUTO.

      Tech Tips


      • The seat heater operates when set to heating, and the seat blower operates when set to cooling.

      • Ther surface warmth of the seat changes even accodding to the outside temperature. Therefore, check with the outside temperature at a constant temperature.

  2. CHECK SEAT HEATER (for Rear) (w/ Rear Seat Heater)


    1. Turn the power switch on (IG).

    2. Press the "Left Seat" or "Right Seat" switch on the rear power seat switch (rear multi operation panel).

    3. Check that seat heater operation switches in order from AUTO → HI → MID → LO → OFF and that the AUTO indicator light and level indicator light turn on/off with each press of the seat heater switch.

    4. Check that the seat surface heat changes according to the level indicator light illumination condition when the seat heater switch is operated.

    5. Check that the level indicator light switches from HI → MID → LO and that the seat surface heat changes according to the air conditioning temperature setting when the seat heater switch is operated with the seat heat set to AUTO.

      Tech Tips


      • The seat heater operates when set to heating, and the seat blower operates when set to cooling.

      • Ther surface warmth of the seat changes even accodding to the outside temperature. Therefore, check with the outside temperature at a constant temperature.

  3. CHECK LEXUS CLIMATE CONCIERGE


    1. LEXUS climate concierge control function:


      1. Set the vehicle to the following conditions.

      2. Press the "Concierge" switch on the multi-display sub menu screen.

      3. Check that the seat heater (seat air conditioning) and steering wheel heater link with the air conditioning system and operate accordingly when the concierge switch on the "Concierge" screen is pressed.

      4. Check that the seat heater (seat air conditioning) turns off when the front passenger seat becomes unoccupied.

      5. When the following conditions are met, check that the LEXUS climate concierge function turns off.


        • Concierge switch on the "Concierge" screen is off

        • Operate the air conditioning, seat heater, comfortable air seat or steering wheel heater system manually.