Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Operation Check
OPERATION CHECK
CHECK FRONT SEAT HEATER
(a) Turn the engine switch on (IG).
(b) Turn the refreshing seat switch (for front side) (heater position) on and check that the indicator illuminates and the surface of the front seat warms up.
(c) Check that the front seat surface temperature changes according to the operation of the refreshing seat switch (for front side) (heater position) as follows: HI → MID → LO.
(d) Set the refreshing seat switch (for front side) to AUTO and check that 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.
CHECK REAR SEAT HEATER (w/ Rear Seat Heater)
(a) Turn the engine switch on (IG).
(b) Turn the refreshing seat switch (for rear side)*1 or rear seat heater switch*2 (heater position) on and check that the indicator illuminates and the surface of the front seat warms up.
- *1: w/o Rear No. 2 Seat
- *2: w/ Rear No. 2 Seat
(c) Check that the front seat surface temperature changes according to the operation of the refreshing seat switch (for rear side)*1 or rear seat heater switch*2 (heater position) as follows: HI → MID → LO.
- *1: w/o Rear No. 2 Seat
- *2: w/ Rear No. 2 Seat
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 ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
If the battery voltage is low, the seat heater system may not operate. When "Operation of Electrical Items Restricted." is displayed on the multi-information display ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Seat Heater System: Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be dis ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: Torque Sensor1 (C1511-C1514,C1517)
DESCRIPTION The torque sensor converts the rotational torque received from the steering wheel into electric signals and sends them to the power steering ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1511 ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Instrument cluster
- Operation of each component
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- Lexus Display Audio system
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- When trouble arises
- Vehicle specifications
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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