warning lights LEXUS RX300H 2017 Owner's Manual

5398-2. Steps to take in an emergency
8
When trouble arises
RC300h_EE(OM24740E)
Automatic headlight leveling system warning light Indicates a malfunction in the au tomatic headlight leveling system
 Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professionalimmediately.
Open door warning light (warning buzzer)*1
Indicates that a door or the trunk is not fully closed
 Check that both side doors and the trunk are closed.
Low fuel level warning light Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp.gal.) or less
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)*2
Warns the driver and/or front passe nger to fasten their seat belts  Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat belt also needs to be fastened to make the warning light(warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*2
Warns the rear passengers to fasten their seat belts  Fasten the seat belt.
Master warning light A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc- tion. P. 542
Tire pressure warning light
When the light comes on: Low tire inflation pressure such as• Natural causes ( P. 540)
• Flat tire ( P. 563)  Adjust the tire inflation pressure to the specified level. The light will turn off after a few minutes. If the warning light
does not turn off after a few minutes, perform initialization ( P. 487). If the light does not turn off after performing initialization,have the system checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pressure warning system  Have the system checked by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
Warning lightWarning light/Details/Actions

5418-2. Steps to take in an emergency
8
When trouble arises
RC300h_EE(OM24740E)
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the power switch is turned to ON mode, have it checked by any authorized Lexus dealer or
repairer, or another duly qua lified and equipped professional.
■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 could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy. If the steering wheel becomes heavier than us ual when operating, hold firmly and oper- ate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressureimmediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, repair the flat tire by using emergency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning system may not operate properly.

5508-2. Steps to take in an emergency
RC300h_EE(OM24740E)
Indicates that the Pop Up Hood system has operated A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Indicates a malfunction in the Pop Up Hood system A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
(If equipped)
Indicates that the LDA (Lane Departure Alert) systemcannot be used because the vehicle speed is lower than
approximately 50 km/h (32 mph)  Drive the vehicle at 50 km/h (32 mph) or higher.
Indicates that the hybrid system was stopped while driv- ingA buzzer also sounds.
 Operate the steering wheel with more force than usual.
Indicates that the power switch is turned off or turned toACCESSORY mode and the driver’s door is opened
while the lights are turned on A buzzer also sounds. Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the power switch off, and the driver’s door open)A buzzer also sounds.
 Close the moon roof.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5548-2. Steps to take in an emergency
RC300h_EE(OM24740E)
Indicates that the engine oil is scheduled to be changed.
(The indicator will not work properly unless the message has been reset.) Check the engine oil, and change if necessary.
After changing the engine oil, the message should be reset.
Indicates that the engine oil should be changed. (Afterthe engine oil is changed and the message has been
reset.)  Check and change the engine oil, and oil filter by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional. After changing the engine oil, the message should bereset.
(If equipped)
Indicates that the Automatic High Beam switch ispressed while the headlights are in low beam.
 Turn the high beam on and press the Automatic High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)system was turned off, the pre-crash brake system oper-
ation is stopped Operation of the pre-crash brake assist is alsostopped.
 Turn the VSC on. (P. 307)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is not currently functional because the grille cover or the sen- sor is dirty
 Check the grille cover and the sensor and clean them if they are dirty.
Warning messageDetails/Actions
(Flashes)

626Alphabetical index
RC300h_EE(OM24740E)
Seat heater precautions ................. 444
Trunk precautions ............................. 153
Cleaning ....................................... 460, 464
Aluminum wheels ................................461
Exterior................................................... 460
Interior ..................................................... 464
Seat belts................................................465
Clock ......................................................... 456
Coat hooks ..............................................458
Condenser ............................................ 480
Console box ...........................................450
Cooling system ...................................... 478
Engine overheating ..........................587
Hybrid system overheating ..........587
Cruise control
Cruise control ..................................... 253
Dynamic radar cruise control ..... 257
Cup holders ............................................. 451
Current fuel consumption.................. 124
Curtain shield airbags ........................... 43
Customizable features ...................... 608
DAB (Digital Audio Broadcast) ..... 369
Daytime running light system ......... 233
Defogger
Outside rear view mirrors ............ 438
Rear window........................................ 438
Windshield ........................................... 438
Differential............................................... 603
Digital Audio Broadcast (DAB) ..... 369
Dimensions ............................................. 596
Display
Drive information................................. 124
Dynamic radar cruise control ......257
LDA (Lane Departure Alert) ....... 274
Multi-information display................... 121
Warning message ............................ 542
Distance ..................................................... 124
Do-it-yourself maintenance ............. 469
Door courtesy lights
Location ................................................. 446
Door lock
Doors......................................................... 144
Smart entry & start system ............. 155
Wireless remote control ................. 138
Doors...........................................................144
Automatic door locking and
unlocking system ............................. 147
Door lock ................................................ 144
Open door warning buzzer .......... 145
Open door warning light .............. 539
Outside rear view mirrors .............. 193
Side windows ........................................ 196
Drive info 1/Drive info 2 ......................126
Drive information ................................... 124
Resetting .................................................. 124
D

628Alphabetical index
RC300h_EE(OM24740E)
If your vehicle has to be
stopped in an emergency..........529
If your vehicle needs to
be towed............................................ 530
If your vehicle overheats ................587
Energy monitor....................................... 129
Engine....................................................... 598
ACCESSORY mode .......................216
Compartment...................................... 473
Engine switch.........................................215
Hood .......................................................... 471
How to start the hybrid system.....215
Identification number ....................... 597
If the hybrid system will not
start ........................................................ 576
Ignition switch (power switch) ......215
Overheating .........................................587
Power switch .........................................215
Engine coolant ....................................... 478
Capacity .................................................. 601
Checking ............................................ 478
Preparing and checking
before winter .................................... 337
Engine coolant temperature
gauge.........................................................115
Engine oil.................................................. 474
Capacity ................................................ 599
Checking ............................................... 474
Preparing and checking
before winter .................................... 337
Engine oil maintenance data............ 476
Engine switch .......................................... 215
EPS (Electric Power Steering)........304
Warning light ...................................... 538
EV drive mode ....................................... 220
EV indicator ............................................. 126
First-aid kit storage belt ..................... 452
Flat tire
Vehicles with emergency
tire puncture repair kit ................. 563
Floor mats ................................................... 34
Fluid
Brake ....................................................... 603
Hybrid transmission ......................... 602
Washer...................................................480
Fog lights .................................................. 239
Replacing light bulbs ....................... 525
Switch ...................................................... 239
Follow me home system .................... 233
Footwell light .......................................... 446
Wattage .................................................605
Front fog lights ....................................... 239
Replacing light bulbs ....................... 525
Switch ...................................................... 239
Front personal lights............................ 448
Front position lights ............................. 232
Light switch............................................232
Replacing light bulbs ....................... 525
Front seats .................................................178
Adjustment ............................................. 178
Cleaning ................................................ 464
Correct driving posture.................... 36
Driving position memory ................ 183
Head restraints .....................................186
Jam protection function ................... 179
Seat heaters.......................................... 445
Seat position memory .......................183
Seat ventilators ................................... 445
Front turn signal lights ........................ 229
Replacing light bulbs ...........520, 525
Turn signal lever..................................229
F

629Alphabetical index
RC300h_EE(OM24740E)
Wattage................................................. 605
Fuel ............................................................. 249
Capacity ................................................ 598
Fuel gauge................................................ 115
Information ........................................... 606
Refueling ................................................ 249
Type .............................................598, 606
Warning light .......................................539
Fuel consumption
Average fuel economy ..................... 124
Current fuel consumption............... 124
Fuel filler door ........................................ 249
If the fuel filler door
cannot be opened ...........................251
Refueling ................................................ 249
Fuel gauge .................................................. 115
Fuses ........................................................... 514
Gauges ........................................................ 115
Glove box................................................ 450
Glove box light ...................................... 450
Hands-free system
(for cellular phone) ........................... 397
Head restraints ....................................... 186
Headlight cleaner................................... 241
Headlights ............................................... 232
Automatic High Beam
system.................................................. 235
Follow me home system................ 233
Light switch............................................232
Replacing light bulbs ....................... 525
Heaters
Air conditioning system ..................432
Heated steering wheel ................... 444
Outside rear view mirrors ............ 438
Seat heaters.......................................... 445
High-voltage components .................. 89
Hill-start assist control ........................ 304
Hood ............................................................ 471
Open ......................................................... 471
Pop Up Hood ........................................ 56
Hooks
Cargo hooks ....................................... 452
Coat hooks........................................... 458
Retaining hooks (floor mat) .............34
Horn ............................................................ 190
Hybrid battery (traction battery) ...... 89
Hybrid battery (traction battery)
air vents .................................................... 90
Hybrid system ........................................... 85
Emergency shut off system ............. 90
G
H

630Alphabetical index
RC300h_EE(OM24740E)
Energy monitor/
consumption screen.......................129
EV drive mode ................................... 220
High voltage components ...............89
Hybrid System Indicator ................... 119
Hybrid system precautions..............89
Hybrid vehicle driving tips ............ 334
If the hybrid system
will not start ....................................... 576
Overheating .........................................587
Power (ignition) switch .....................215
Starting the hybrid system...............215
Hybrid System Indicator .......................119
Hybrid transmission ............................. 222
If the shift lever cannot be
shifted from P ....................................227
Paddle shift switches ............ 224, 225
S mode .................................................... 225
Identification
Engine ..................................................... 597
Vehicle.................................................... 597
Ignition switch (power switch) ..........215
Illuminated entry system .....................447
Immobilizer system ................................. 95
Indicators .................................................... 112
Initialization
Maintenance ........................................ 476
Meter ......................................................... 126
Moon roof ............................................... 201
Multi-information display................. 126
Power windows ................................... 197
Tire pressure warning
system.................................................. 487
Initiators (tire pressure warning
system)................................................... 497
Inside rear view mirror .......................... 191
Instrument panel light control ............ 118
Interior lights............................................447
Intrusion sensor and tilt sensor ........ 105
ISOFIX rigid anchors .............................75
I

631Alphabetical index
RC300h_EE(OM24740E)
Jack
Positioning the jack........................... 472
Vehicle-equipped jack ...................499
Jack handle .............................................. 499
Jam protection function
Front seats ............................................... 179
Moon roof .............................................. 201
Power window ......................................197
Keyless entry
Smart entry & start
system ......................................... 144, 150
Wireless remote control ....... 144, 150
Keys ............................................................. 138
Battery-Saving Function ..................157
Electronic key ....................................... 138
If the electronic key does not
operate properly ............................578
Key number plate ............................... 138
Keyless entry ............................... 144, 150
Mechanical key.....................................139
Power switch .........................................215
Replacing the battery.......................... 511
Warning buzzer ...................................145
Wireless remote control ................. 138
Knee airbags.............................................. 43
Lane Departure Alert (LDA) .......... 273
Language
(multi-information display) .............. 126
LDA (Lane Departure Alert) .......... 273
Lever
Auxiliary catch lever........................... 471
Hood lock release lever .................. 471
Shift lever ................................................ 222
Tilt and telescopic steering
lock release lever .............................189
Turn signal lever..................................229
Wiper lever ............................................ 241
Lexus Display Audio controller...... 346
Lexus Display Audio system............ 344
Lexus parking assist monitor ........... 286
Lexus parking assist-sensor ............. 279
License plate lights .............................. 232
Light switch............................................232
Replacing light bulbs ....................... 525
Light bulbs
Replacing............................................... 520
Wattage .................................................605
Lights
Automatic High Beam
system.................................................. 235
Fog light switch................................... 239
Follow me home system................ 233
Headlight switch .................................232
Illuminated entry system .................447
Interior lights .........................................447
Interior lights list ................................. 446
Personal lights..................................... 448
Replacing light bulbs ....................... 520
Trunk light ............................................... 152
Turn signal lever..................................229
J
K
L

632Alphabetical index
RC300h_EE(OM24740E)
Vanity lights ..........................................455
Wattage................................................. 605
Lock steering column ...........................217
Low profile tire ...................................... 488
Luggage security system ......................151
Maintenance Do-it-yourself maintenance .........469
Maintenance data............................. 596
Maintenance requirements .......... 467
Maintenance system ............................ 126
Malfunction indicator lamp .............. 537
Master warning light ...........................539
Meter Changing the display...........................117
Indicators ...................................................112
Instrument panel li ght control......... 118
Meters ........................................................ 115
Multi-information display ...................121
Operating the meter control switches................................................. 123
Settings......................................................126
Warning lights .......................................... 111
Warning message............................. 542
MirrorLink ........................................... 424
Mirrors Inside rear view mirror....................... 191
Outside rear view mirror defoggers...........................................438
Outside rear view mirrors...............193
Vanity mirrors......................................455
MMS (Multimedia messaging service) ..................................................405
Moon roof ............................................... 200 Door lock linked moon roof
operation.............................................. 201
Jam protection function ................... 201
Operation ............................................. 200
MP3 disc.................................................... 371
Multi-information display ..................... 121
Audio system-linked............................ 121
Drive information................................. 124
Dynamic radar cruise control ..................................................257
Energy monitor .................................... 130
LDA (Lane Departure Alert) ....... 274
Navigation system-linked ................. 121
Settings ..................................................... 126
switch settings .............................. 126
Switching the display ......................... 123
Warning message ............................ 542
M