RX350/270_EE
9
∗: If equipped
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
Tires
●Rotation
●Replacement
●Inflation pressure
P. 483
P. 572
P. 617
Tail lights P. 217
Rear turn signal lights P. 193
Back door opener
button
P. 60
Rear window wiper P. 227
Rear fog lights P. 222
Side doors P. 56Back door P. 60
Fuel filler door P. 110
Rear window defogger* P. 321
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452
RX350/270_EE
4-1. Maintenance and care
Cleaning and protecting the vehicle exterior
■Automatic car washes
●Before washing the vehicle:
•Fold the mirrors.
• Turn off the power back door system (if equipped).
●Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.
●In certain automatic car washes, the rear spoiler may interfere with machine
operation. This may prevent the vehicle from being cleaned properly or result in
damage to the rear spoiler.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the
windows and the air suspension unit (if equipped).
●Before using the car wash, check that the fuel filler door on your vehicle is
closed properly.
Perform the following to protect the vehicle and maintain it in prime condi-
tion:
●Working from top to bottom, liberally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
●For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.
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495
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Tire inflation pressure
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1.5 km or 1 mile, you will get an accurate cold tire inflation pressure
reading.
●Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressure
that is even just a few pounds off can degrade ride and handling.
●Do not reduce tire inflation pressure after driving. It is normal for tire inflation
pressure to be higher after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
Make sure to maintain proper tire inflation pressure. Tire inflation pressure
should be checked at least once per month. However, Lexus recommends
that tire inflation pressure be checked once every two weeks.
(→P. 6 1 7 )
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513
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
7ECU-IG1 NO. 110 A
Multiplex communication system,
steering sensor, shift lock control sys-
tem, tilt and telescopic steering, auto-
matic transmission system, power
back door, pre-crash safety system,
vehicle stability control system, tire
pressure warning system
8S/ROOF30 AMoon roof
9FUEL OPN7. 5 AFuel filler door opener
10PSB30 APre-crash seat belt
11TI & TE30 ATilt and telescopic steering system
12DR LOCK10 ADR LOCK
13FR FOG7. 5 AFront fog lights
14P- S E AT L H30 APower seat (left-side)
154WD7. 5 AAW D s y s t e m
16INVERTER20 A
17RR FOG7. 5 ARear fog lights
18D/L ALT B25 A
Multiplex communication system,
power door lock system, power back
door
19EPS10 AElectric power steering system
20ECU-IG1 NO. 210 ALexus parking assist-sensor, AWD
system, pre-crash seat belt
FuseAmpereCircuit
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548
5-2. Steps to take in an emergency
RX350/270_EE
■If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately.
The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Front passenger detection sensor, passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning
buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).
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648
Alphabetical index
RX350/270_EE
Warning lights
Anti-lock brake system...................544
Automatic headlight leveling
system .................................................. 220
Brake assist system...........................544
Brake system ...........................543, 544
Charging system ...............................543
Electric power steering ..................544
Electronic engine control
system ..................................................544
Low fuel level .......................................546
Low tire pressure...............................546
Malfunction indicator lamp ...........544
Master warning light ........................546
Open door............................................546
Pre-crash safety system .................544
Pretensioners....................................... 544
Seat belt reminder light...................546
SRS airbags .......................................... 544
Tire pressure ........................................546Warning messages
Adaptive front lighting system .... 554
Anti-lock brake
system.................................................. 554
Automatic transmission fluid ....... 557
AWD system.............. 553, 554, 557
Brake lamp system ........................... 554
Brake system ....................................... 552
Dynamic radar cruise
control system .....................554, 557
Electric power steering .................. 554
Electronically modulated air
suspension ........................................ 554
Engine oil level.................................... 557
Engine oil pressure........................... 553
Engine overheat................................. 557
Headlight leveling ............................. 554
Hood ....................................................... 557
Lexus parking assist-
sensor ......................................554, 557
Light reminder .................................... 557
Low fuel .................................................. 557
Moon roof ............................................. 557
Open door ........................................... 557
Parking brake ...................................... 557
Pre-crash safety
system......................................554, 557
Smart entry & start system ........... 563
SRS airbags .......................................... 554
Steering lock ........................................ 554
Washer fluid......................................... 557
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651
What to do if...
RX350/270_EE
A warning light or indicator
light comes onP. 5 4 3If a warning light turns on or a warning
buzzer sounds...
■Warning lights
P. 5 4 4P. 5 4 6
P. 5 4 3P. 5 4 6
P. 5 4 6P. 5 4 6
P. 5 4 4P. 5 4 4
P. 5 4 6P. 5 4 4
P. 5 4 4P. 5 4 6
P. 5 4 4P. 5 4 4
P. 5 4 3
*: The light flashes to indicate a malfunction.
ABS warning lightDriver’s seat belt reminder
light (on the instrument
panel)
Brake system warning lightFront passenger’s seat belt
reminder light (on the
center panel)
Low fuel level warning lightMaster warning light
SRS warning lightElectric power steering
system warning
light
Open door warning lightPre-crash safety system
warning light*
Malfunction indicator lampTire pressure warning light
“AFS OFF” indicator*Slip indicator
Charging system warning
light
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652
RX350/270_EE
GAS STATION INFORMATION
Auxiliary catch lever
P. 4 6 5Fuel filler door
P. 110Back door opener
P. 6 0
Hood lock release lever
P. 4 6 5Fuel filler door opener
P. 1 1 0Tire inflation pressure
P. 6 1 7
Fuel tank capacity
(Reference)72 L (19.0 gal., 15.8 Imp. gal.)
Fuel type
EU area:
Unleaded gasoline conforming to European
standard EN228 only
Except EU area:
Unleaded gasoline only P. 609
Cold tire inflation
pressureP. 6 1 7
Engine oil capacity
(Drain and refill
reference)P. 6 1 0
Engine oil type“Toyota Genuine Motor Oil” or equivalent P. 610
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