warning lights LEXUS RX200T 2017 Owner's Manual

6427-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement. ( P. 643)
●If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you us e genuine Lexus products designed for this vehicle. Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions. Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that indicated, or use any otherobject in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as soon as possible.

6537-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
■LED lights
The headlight low beams, headlight high beams, front turn signal lights (vehicles with tri- ple-beam headlights), front position lights and daytime running lights, front fog lights, cornering lights (if equipped), rear fog lights, rear turn signal light (vehicles with triple-
beam headlights), side turn signal lights, st op/tail lights, rear side marker lights, high mounted stoplight, license plate lights, and outer foot lights consist of a number of LEDs.If any of the LEDs has burned out, take your vehicle to any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional to have the light replaced.
■Condensation build-up on the inside of a lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional for more info rmation in the following situations:
●Large drops of water have built up on the inside of a lens.
●Water has built up inside a headlight.
■When replacing light bulbs
 P. 642
WARNING
■To prevent injury
Before performing any light bulb replacement procedure, be sure to turn the engine switch off. Failure to do so may result in burns from hot components or a part of your body may get caught on an operating co mponent, possibly causing serious injury.
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid- able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb. Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or wate r entering the headlight unit. This may damage the head- lights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble the light bulbs, connectors, electric circuits
or component parts. Doing so may result in death or serious injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.

6668-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light Indicates that:
• The brake fluid level is low; or • The brake system is malfunctioning Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped professional. Continuing to drive the vehicle maybe dangerous.
Brake system warning light
Indicates a malfunction in the electric parking brake  Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional
immediately.
(If equipped)
Charging system warning light Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact any authorized Lexus dealer or repairer, or another duly qualifiedand equipped professional. Continuing to drive the vehicle may
be dangerous.
Malfunction indicator lamp Indicates a malfunction in:• The electronic engine control system;
• The electronic throttle control system; or • The electronic automatic transmission control system Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional immediately.

6718-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
■When a tire is replaced with a spare tire
Vehicles with a compact spare tire: The comp act spare tire is not equipped with a tire pressure warning valve and transmitter. If a ti re goes flat, the tire pressure warning light
will not turn off even though th e flat tire has been replaced with the spare tire. Replace the spare tire with the repaired tire and adjust the tire inflation pressure. The tire pressurewarning light will go off after a few minutes.
Vehicles with a full-size spare tire: The spare tire is also equipped with a tire pressure warning valve and transmitter. The tire pressure warning light will turn on if the tire infla- tion pressure of the spare tire is low. If a ti re goes flat, the tire pressure warning light will
not turn off even though the flat tire has been replaced with the spare tire. Replace the spare tire with the repaired tire and adjust the tire inflation pressure. The tire pressure warning light will go off after a few minutes.
■Conditions that the tire pressure warning system may not function properly
 P. 618
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio sound.
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional. The vehicle will become extremely unstable during braking, and the ABS system may fail, which couldcause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
When the light comes on yellow, the assist to the power steering is restricted. When the light comes on red, the assist to the power steering is lost and handling operations of
the steering wheel become extremely heavy. When steering wheel operations are heavier than usual, grip the steering wheel firmly and operate it using more force than usual.

6748-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
The warning lights and warning buzzers operate as follows depending on the
content of the message. If a message in dicates the need for inspection by a
dealer, have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional immediately.
*: A buzzer sounds the first time a message is shown on the multi-information display.
Messages and warnings
System
warning lightWarning buzzer*Warning
Comes on  Sounds
Indicates an important situation, such as when a system related to driving is
malfunctioning or that danger may result if the correction procedure is notperformed
Comes on or flashesSounds
Indicates an important situation, such
as when the systems shown on the multi-information display may be mal-functioning
FlashesSounds
Indicates a situation, such as when
damage to the vehicle or danger may result
Comes
onDoes not sound
Indicates a condition, such as malfunc- tion of electrical components, their
condition, or indicates the need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an
operation has been performed incor- rectly, or indicates how to perform anoperation correctly

6788-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sep- arate system warning light will come on al ong with a message shown on the multi-infor- mation display.
●“Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( P. 667)
●“Charging System Malfunction See Owner’s Manual” (F SPORT models):
The charging system warning light comes on. ( P. 666)
■Warning buzzer
 P. 671
NOTICE
■“High Power Consumption Partial Limit On AC/Heater Operation” is frequently
shown
There is a possible malfunction relating to the charging system or the battery may be deteriorating. Have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Vehicles with a Heated Windshield Defroste r: This message will be displayed when the Heated Windshield Defroster is oper ating. This is not a malfunction.

760Alphabetical index
RX350/RX200t_EE_OM48F32E
Back door
Back door................................................146
Power back door.................................. 151
Touchless power back door......... 153
Wireless remote control ................... 151
Back-up lights
Replacing light bulbs........................ 643
Wattage..................................................738
Battery
Battery checking ................................607
If the battery is discharged .............. 714
Preparing and checking
before winter .................................... 429
Warning light .......................................666
Blind Spot Monitor (BSM) ................355
Blind Spot Monitor function...........361
Rear Crossing Traffic
Alert function ....................................365
Bluetooth®............................................... 513
Audio system ...................................... 490
Hands-free system
(for cellular phone)........................ 492
Boost gauge ............................................. 107
Bottle holders .........................................560
Brake
Brake Hold ........................................... 263
Fluid .......................................................... 736
Parking brake ......................................259
Warning light .......................................666
Brake assist.............................................. 422
Brake Hold .............................................. 263
Warning light....................................... 667
Break-in tips............................................ 228
Brightness control
Instrument panel light control ........ 98
BSM (Blind Spot Monitor) ............... 355
Blind Spot Monitor function .......... 361
Rear Crossing Traffic
Alert function.................................... 365
Card key ....................................................134
Care
Aluminum wheels..............................585
Exterior ................................................... 584
Interior.....................................................589
Seat belts ...............................................590
Self-restoring coat ............................ 584
Cargo hooks .......................................... 562
Cargo net hooks................................... 562
CD player ................................................ 466
Chains ....................................................... 430
Child restraint system............................ 54
Child seats definition .......................... 54
Child seats installation ...............62, 69
Installing a CRS to the
passenger seat ................................... 59
Installing CRS with ISOFIX
rigid anchors ........................................ 74
Installing CRS with seat belts ......... 66
Installing CRS with top strap ...........75
B
C

761Alphabetical index
RX350/RX200t_EE_OM48F32E
Child safety................................................. 54
Airbag precautions .............................. 43
Back door precautions .................... 148
Battery precautions ................. 610, 717
Child restraint system......................... 54
How your child should wear
the seat belt .......................................... 37
Installing child restraints .................... 54
Moon roof precautions .................... 217
Panoramic moon roof
precautions.......................................... 221
Power back door precautions....... 161
Power window lock switch............ 210
Power window precautions ........... 213
Rear door child-protectors ............143
Removed key battery
precautions........................................639
Seat belt precautions .......................... 39
Seat heater precautions .................549
Child-protectors .................................... 143
Cleaning .......................................584, 589
Aluminum wheels ............................. 585
Exterior................................................... 584
Interior .................................................... 589
Seat belts............................................... 590
Clock ................................................ 96, 568
Coat hooks .............................................. 577
Condenser .............................................. 607
Console box ........................................... 557
Consumption screen ................. 105, 128
Coolant
Capacity..................................................734
Checking ...............................................605
Preparing and checking
before winter.................................... 429
Cooling system ..................................... 605
Engine overheating ............................ 718
Cornering lights .................................... 266
Cruise control
Cruise control ....................................... 341
Dynamic radar cruise control
with full-speed range ................... 329
Cup holders ............................................558
Curtain shield airbags ............................. 41
Customizable features....................... 740
Customized mode ................................. 417
Daytime running light system ...........267
Defogger
Outside rear view mirrors ............ 542
Rear window........................................ 542
Windshield ........................................... 542
Differential............................................... 736
Dimensions ..............................................726
Display
Dynamic radar cruise control
with full-speed range ................... 329
LKA (Lane-Keeping Assist) .......... 319
Multi-information display................ 100
Warning messages .......................... 673
D

763Alphabetical index
RX350/RX200t_EE_OM48F32E
Engine
ACCESSORY mode ..................... 247
Compartment..................................... 599
Engine switch....................................... 246
Hood ........................................................ 597
How to start the engine .................. 246
Identification number ....................... 728
If your vehicle has to be
stopped in an emergency.......... 657
Ignition switch (engine switch) ... 246
Overheating ...........................................718
Engine coolant
Capacity ................................................. 734
Checking .............................................. 605
Preparing and checking
before winter .................................... 429
Engine coolant temperature
gauge......................................................... 96
Engine immobilizer system...................77
Engine oil
Capacity ................................................. 729
Checking ................................................ 601
Preparing and checking
before winter .................................... 429
Engine oil pressure gauge ................. 107
Engine oil temperature gauge ......... 107
Engine switch ......................................... 246
EPS
(Electronic Power Steering)......... 423
Warning light ....................................... 667
ERA-GLONASS ........................ 46, 578
Flat tire ........................................... 679, 693
Floor mats ................................................... 32
Fluid
Automatic transmission.................. 735
Brake ....................................................... 736
Washer.......................................................611
Fog lights
Replacing light bulbs ....................... 643
Switch ...................................................... 278
Follow me home system .................... 266
Front fog lights
Replacing light bulbs ...................... 643
Switch ...................................................... 278
Front passenger footwell hooks ..... 575
Front passenger’s seat belt
reminder light ..................................... 669
Front position lights
Light switch........................................... 265
Replacing light bulbs ....................... 643
Front seat heaters................................. 550
Front seats
Adjustment .............................................185
Cleaning ................................................589
Correct driving posture.....................34
Driving position memory ................ 195
Head restraints ................................... 200
Power easy access system............. 195
Seat heaters..........................................550
Seat position memory .......................195
F

765Alphabetical index
RX350/RX200t_EE_OM48F32E
Hill-start assist control ........................ 422
Hood .......................................................... 597
Hooks
Cargo hooks........................................ 562
Cargo net hooks................................562
Front passenger footwell
hooks ....................................................575
Grocery bag hooks .........................563
Retaining hooks (floor mat)............. 32
Horn ........................................................... 202
HUD (Head-up display) ......................122
ICS
(Intelligent Clearance Sonar) .... 380
Indicator ................................................... 92
Warning light ..................................... 668
Warning messages .............. 384, 391
Identification
Engine...................................................... 728
Vehicle .....................................................727
Ignition switch (engine switch) ........ 246
Illuminated entry system ....................555
Immobilizer system ..................................77
Indicators.....................................................90
Initialization
Engine oil maintenance data ...... 604
Items to initialize ................................. 752
Power back door................................ 159
Tire pressure warning system ...... 616
Inside rear view mirror ....................... 204
Instrument panel light control ............ 98
Intelligent Clearance Sonar
(ICS) ......................................................380
Indicator .....................................................92
Warning light ..................................... 668
Warning messages .............. 384, 391
Interior lights........................................... 552
Switch ...................................................... 553
Wattage ................................................. 738
Intrusion sensor ........................................ 85
ISOFIX rigid anchors ............................ 69
Jack
Positioning a floor jack ...................598
Vehicle-equipped jack...... 680, 695
Jack handle ................................. 680, 695
Jam protection function
Electronic sunshade........................... 219
Moon roof ............................................... 215
Panoramic moon roof ...................... 219
Power back door opener
and closer ............................................159
Power windows ..................................... 211
I
J