2019 Lexus ES350 warning lights

3487-2. Steps to take in an emergency
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
High coolant temperature warning light
* (warning buzzer)■
*: This light illuminates on the multi-information display.
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, bu t 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 your Lexus dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in:
 The electronically controlled brake system (if equipped); or
 The parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.377)

3517-2. Steps to take in an emergency
7
When trouble arises
■Low fuel level warning light
Driver’s and front passenger’s seat belt reminder light (warning buzzer)
*■
*: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to al ert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer sounds for
6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If
the seat belt is still unfastened after 24 seconds, the buzzer will sound intermittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for
90 more seconds.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger that his
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of 12
mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Th en, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 90 more seconds.
■Rear passengers’ seat belt r eminder lights (warning buzzer)*
*: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear passengers that his
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of 12
mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Th en, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 30 more seconds.
Warning lightDetails/Actions
Indicates that remaining fu el is approximately 2.4 gal. (9 L, 2.0 Imp.gal.)
or less
 Refuel the vehicle.
Warning lightDetails/Actions
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.
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.

3567-2. Steps to take in an emergency
If the tire pressure warning light blinks for
approximately 1 minute then stays on
There may be a malfunct ion in the tire pres-
sure warning system. Have the vehicle
inspected by your Lexus dealer immedi-
ately.
If the tire pressure warning light comes
on
1 After the temperature of the tires has
lowered sufficiently, check the inflation
pressure of each tire and adjust them to
the specified level.
2 If the warning light does not turn off
even after several minutes have
elapsed, check that the inflation pres-
sure of each tire is at the specified level
and perform initialization. ( P.321)
■The tire pressure warning light may
come on due to natural causes
The tire pressure wa rning light may come
on due to natural causes such as natural air
leaks and tire inflation pressure changes
caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with
a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warn-
ing 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 lig ht will go off after a
few minutes.
■Conditions that the tire pressure warn-
ing system may not function properly
 P.319
WARNING
■If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer.
The vehicle will become extremely
unstable during br aking, 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
When the light comes on yellow, the
assist to the power st eering 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.
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
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. Check and adjust the
tire inflation pre ssure immediately.
●If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is prob able that you have
a flat tire. Check the tire s. If a tire is flat,
change it with the spare tire and have
the flat tire repaired by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and brak-
ing.
If the vehicle tires deteriorate, you
could lose control of the steering
wheel or the brakes.

3697-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.373)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.161)
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
( P.137)
 There may be a malfunction in the
engine immobilizer system.
( P.54)
 There may be a malfunction in the
steering lock system.
One of the following may be the cause
of the problem:
 The battery may be discharged.
WARNING
■Speed limit when using the compact
spare tire
Do not drive at speeds in excess of 50
mph (80 km/h) when a compact spare
tire is installed on the vehicle.
The compact spare tire is not designed
for driving at high speeds. Failure to
observe this precaution may lead to an
accident causing deat h or serious injury.
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
■Be careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
■Driving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle body
and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
If the engine will not start
If the engine will not start even
though correct starting procedures
are being followed ( P.137), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.

429What to do if... (Troubleshooting)429Alphabetical index
Alphabetical index
A
A/C .....................................................................251Air conditioning filter ............................... 328
Automatic air conditioning system .....251
ABS (Anti-lock Brake System).............. 236 Function .......................................................... 236
Warning light .............................................. 350
ACA (Active Cornering Assist) ........... 236
Active Cornering Assist (ACA) ........... 236
Adaptive Front-lighting System (AFS) .152
Adaptive Variable Suspension System236
AFS (Adaptive Front-lighting System) .152
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ...................................... 349
Air conditioning filter ................................. 328
Air conditioning system ..............................251 Air conditioning filter ............................... 328
Automatic air conditioning system .....251
Alarm ................................................................... 56 Alarm .................................................................. 56
Warning buzzer .........................................348
Anchor brackets ...................................... 43, 51
Antennas (smart access system with push- button start) ................................................. 100
Anti-lock Brake System (ABS).............. 236 Function ..........................................................236
Warning light .............................................. 350
Approach warning........................................193
Armrest............................................................ 278
Assist grips ..................................................... 278
Audio system-linked display ...................... 75
Automatic headlight leveling system ..... 151
Automatic High Beam ................................153
Automatic light control system............... 150
Automatic transmission ............................... 141 Paddle shift switches ....................... 143, 144
S mode ..............................................................144
Auxiliary box...................................................267
Average fuel economy..................................73
Average vehicle speed .................................73
B
Back-up lights Replacing light bulbs ................................335
Battery Checking .........................................................314
If the battery is discharged .................... 374
Preparing and checking before winter..........................................................................240
Warning light ...............................................349
Blind Spot Monitor (BSM)......................... 197
Boost gauge.......................................................74
Brake Brake hold ...................................................... 148
Fluid.................................................................. 386
Parking brake ............................................... 146
Warning light .............................................. 348
Brake assist .................................................... 236
Break-in tips.....................................................129
Brightness control Instrument panel light control........ 66, 70
BSM (Blind Spot Monitor)......................... 197

431What to do if... (Troubleshooting)Alphabetical index431
Warning message.................................... 358
Distance until next engine oil change .. 65, 70
Do-it-yourself maintenance .................... 302
Door courtesy lights ................................... 262
Door lock Doors .................................................................. 89
Smart access system with push-button start ................................................................. 100
Wireless remote control........................... 87
Doors ................................................................... 89 Automatic door lock ing and unlocking
system ............................................................. 92
Door glasses ................................................... 118
Door lock.......................................................... 89
Open door warning buzzer .......... 90, 92
Outside rear view mirrors ....................... 115
Rear door child-protectors ..................... 92
Drive distance ...................................................73
Drive info 1/Drive info 2 ...............................73
Driver’s seat position memory ................ 108 Driving position memory ........................ 108
Memory recall function ........................... 109
Drive-start control ........................................129
Driving................................................................128 Break-in tips ................................................... 129
Correct driving posture .............................23
Driving Mode Select switch ................. 202
Procedures .....................................................128
Winter drive tips......................................... 240
Driving information display .........................73
Driving Mode Select switch.................... 202
Driving range ....................................................73
Driving support system information display ..............................................................................76
Dynamic radar cruise control with full- speed range..................................................187Warning message...................................... 195
E
Eco drive mode ............................................ 202
Eco Driving Indicator..................... 74, 75, 81 Eco Driving Indicator Light .........................74
EDR (Event data recorder) ............................7
Elapsed time ......................................................73
Electric Power Steering (EPS)
Function ..........................................................236
Warning light .............................................. 350
Electronic key .................................................. 86 Battery-saving function.............................. 101
If the electronic key does not operate properly ....................................................... 372
Replacing the battery .............................. 330
Electronic roof sunshade Jam protection function ............................124
Operation ........................................................123
Emergency, in case of If a warning buzzer sounds.................. 348
If a warning light turns on...................... 348
If a warning message is displayed .... 358
If the battery is discharged .................... 374
If the electronic key does not operate properly ....................................................... 372
If the engine will not start....................... 369
If the fuel filler do or cannot be opened
............................................................................371
If the vehicle is trapped in rising water ............................................................................341
If you have a flat tire ..................................362
If you lose your keys ...................................371
If you think something is wrong..........346
If your vehicle becomes stuck ............. 379
If your vehicle has to be stopped in an emergency ................................................ 340
If your vehicle needs to be towed .....343
If your vehicle overheats ........................ 377
Emergency flashers .................................... 340
Engine ................................................................ 137 ACCESSORY mode............................... 139
Compartment............................................... 310
Engine switch .................................................137
Fuel pump shut off system..................... 347
Hood ............................................................... 308
How to start the engine ............................137

432Alphabetical index
Identification number ...............................383
If the engine will not start .......................369
If your vehicle has to be stopped in an
emergency ................................................340
Ignition switch (engine switch) ............. 137
Overheating..................................................377
Tachometer .............................................64, 67
Engine coolant................................................312 Capacity ........................................................ 385
Checking ......................................................... 312
Preparing and checking before winter......................................................................... 240
Engine coolant temperature gauge 64, 67
Engine immobilizer system ........................ 54
Engine oil ......................................................... 310 Capacity .........................................................384
Checking ........................................................ 310
Preparing and checking before winter......................................................................... 240
Warning light ............................................... 349
Engine oil maintenance data ....................312
Engine switch ........................................ 137, 137 Auto power off function ................ 139, 139
Changing the engine switch modes139, 139
If your vehicle has to be stopped in an
emergency ................................... 340, 340
Starting the engine ............................ 137, 137
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 236
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 236
EPS (Electric Power Steering) .............. 236 Function .......................................................... 236
Warning light .............................................. 350
Event data recorder (EDR) ............................7
F
Flat tire ............................................................. 362 Tire pressure warning system ...............319
Floor mats ...........................................................22 Fluid
Automatic transmission ......................... 385
Brake ............................................................... 386
Washer ............................................................ 315
Footwell light ................................................. 262
Front passenger occupant classification system ...............................................................37
Front seats ........................................................107 Adjustment ..................................................... 107
Cleaning .........................................................299
Correct driving posture ............................ 23
Driving position memory ........................ 108
Head restraints................................................. 111
Memory recall function............................ 109
Power easy access system .................... 108
Seat heaters ................................................. 258
Seat position memory ..............................108
Seat ventilators ........................................... 258
Front side marker light ............................... 150 Light switch .................................................... 150
Front side marker lights Replacing light bulbs ................... 335, 335
Front turn signal lights .................................145
Replacing light bulbs ................... 335, 335
Turn signal lever .......................................... 145
Fuel ....................................................................... 161 Capacity ........................................................ 383
Fuel gauge ............................................... 64, 67
Fuel pump shut off system..................... 347
Information ................................................... 389
Refueling............................................................ 161
Type ................................................................. 383
Warning light ................................................ 351
Fuel consumption Average fuel economy .............................. 73
Current fuel consumption ........................ 73
Fuel filler door .................................................. 161 If the fuel filler do or cannot be opened
............................................................................371
Refueling............................................................ 161
Fuel gauge ................................................. 64, 67
Fuel pump shut off system........................ 347

433What to do if... (Troubleshooting)Alphabetical index433
Fuses ...................................................................331
G
Garage door opener ...................................281
Gauges ....................................................... 64, 67
Gear Position....................................................75
G-force................................................................75
Glove box ....................................................... 266
Glove box light ............................................. 266
Grocery bag hooks .................................... 268
H
Hands Free Power Trunk Lid .................... 96
Headlights ....................................................... 150Adaptive Front-lighting System (AFS)...........................................................................152
Automatic High Beam system..............153
Light switch .................................................... 150
Replacing light bulbs................................ 335
Headlights aim .............................................. 333
Head restraints ..................................................111
Head-up display.............................................. 78 Driving information display area........... 78
Driving support system display area ..80
Eco Driving Indicator ...................................81
HUD (Head-up display) switch............ 79
Navigation system-linked display ........ 78
Pop-up display...............................................80
Settings .............................................................. 79
Heated steering wheel .............................. 258
Heaters Air conditioning system............................251
Heated steering wheel............................258
Outside rear view mirrors .................... 252
Seat heaters ..................................................258
High mounted stoplight Replacing light bulbs................................ 335
Hill-start assist control ............................... 236
Hood .................................................................308 Open .............................................................. 308 Hooks
Cargo hooks............................................... 268
Coat hooks .................................................. 280
Grocery bag hooks................................. 268
Retaining hooks (floor mat) ..................... 22
Horn ..................................................................... 114
HUD (Head-up display) switch .................79
I
I/M test ............................................................305
Identification Engine............................................................. 383
Vehicle ............................................................382
Ignition switch (engine switch)................. 137 Auto power off function........................... 139
Changing the engine switch modes . 139
If your vehicle has to be stopped in an emergency ................................................ 340
Starting the engine ......................................137
Immobilizer system........................................ 54
Indicators ........................................................... 62
Initialization Items to initialize .......................................... 410
Maintenance........................................ 301, 312
Power windows ............................................. 118
Tire pressure warning system ...............321
Inside rear view mirror ................................. 114
Instrument panel light control ........... 66, 70
Interior lights.................................................. 262
Intuitive parking assist.................... 204, 205 Function ......................................................... 205
Warning message .................................... 208
J
JackPositioning a floor jack ........................... 308
Vehicle-equipped jack ...........................363
Jack handle .................................................... 363
Jam protection function Electronic roof sunshade .........................124
Moon roof ........................................................ 121