warning light Lexus ES350 2016 s / Service Manual

4798-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
8
When trouble arises
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■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 tu rn 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 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 warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
P. 440
■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
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.

4808-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
WA R N I N G
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehi-
cle 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 pressure
immediately.
●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, change it
with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the 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.

4818-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
8
When trouble arises
WA R N I N G
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la bel (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should stop and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency
and tire tread life, and ma y affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is the driver’s resp onsibility to maintain correct tire pressure,
even if under-inflation has no t reached the level to trigger illumination of the TPMS low
tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one minu te and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning syst em) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressure warning system) to continue to function
properly.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

482
ES350_OM_OM33B64U_(U)8-2. Steps to take in an emergency
If a warning message is displayed
Master warning light
The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.
Multi-information display
If any of the warning messages are show n again after the following actions have
been performed, contact your Lexus dealer.
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 your Lexus dealer immediately.
The multi-information display shows warnings of system malfunctions, incor-
rectly performed operations, and messages that indicate a need for mainte-
nance. When a message is shown, perform the correction procedure
appropriate to the message.
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Messages and warnings
System
warning light
Wa r n i n g b u z z e r*Wa r n i n g
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 not
performed
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

4838-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
8
When trouble arises
*: A buzzer sounds the first time a message is shown on the multi-information display.
■If “Maintenance Required Soon” is shown (U.S.A. only)
Indicates that all maintenance according to the driven distance on the maintenance
schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been reset.
If necessary, perform maintenance.
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement” for the maintenance interval applicable to your vehicle.
■If “Maintenance Required Visit Your Dealer” is shown (U.S.A. only)
Indicates that all maintenance is required to correspond to the driven distance on the
maintenance schedule
*.
Comes on approximately 5000 miles (80 00 km) after the message has been reset.
(The indicator will not work properly unless the message has been reset.)
Perform the necessary maintenance. Please reset the message after the maintenance is
performed ( P. 4 1 5 )
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement” for
the maintenance interval applicable to your vehicle.
■If “Oil Maintenance Required Soon” is shown
Indicates that the engine oil is scheduled to be changed. (The indicator will not work
properly unless the oil maintenance data has been reset.)
Check the engine oil, and change if necessar y. After changing the engine oil, the oil
change system should be reset. ( P. 4 2 9 )
■If “Oil Maintenance Required Visit Your Dealer” is shown
Indicates that the engine oil should be changed. (After the engine oil is changed and the
oil maintenance data has been reset.)
Check and change the engine oil, and oil filt er by your Lexus dealer. After changing the
engine oil, the oil change system should be reset. ( P. 4 2 9 )
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 an
operation correctly
System
warning
lightWa r n i n g b u z z e r*Wa r n i n g

4848-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
■If “Power Turned Off to Save Battery” is shown
Power was turned off due to the automatic power off function.
Next time when starting the engine, increase the engine speed slightly and maintain that
level for approximately 5 minutes to recharge the battery.
■When a message that indicates the need for the shift lever operation is shown
To prevent the shift lever from being operated incorrectly or the vehicle from moving
unexpectedly, a message that requires shifting the shift lever may be shown on the multi-
information display. In that case, follow the instruction of the message and shift the shift
lever.
■If “Visit Your Dealer” is shown
The system or part shown on the multi-info rmation display is malfunctioning. Have the
vehicle inspected by your Lexus dealer immediately.
■If “See Owner’s Manual” is shown
●If the following message is shown, fo llowing the instructions, accordingly.
• “Engine Coolant Temp High” ( P. 5 0 5 )
●If the following message is show n, there may be a malfunction.
Immediately have the vehicle inspected by your Lexus dealer.
• “Check Access System with Elec. Key”
●If the following messages are sh own, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact your Lexus dealer. Continuing
to drive the vehicle may be dangerous.
• “Braking Power Low Stop in a Safe Place”
• “Charging System Malfunction”
• “Oil Pressure Low Stop in a Safe Place”
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.

4948-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY” on the
tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire. ( P. 5 1 8 )
■When using the compact spare tire
As the compact spare tire is not equipped wi th a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare ti re will not be indicated by the tire pressure
warning system. Also, if you replace the compact spare tire after the tire pressure warn-
ing light comes on, th e light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire compared to when
driving with standard tires.
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle. Perform the follow-
ing steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehicle.
Fit tire chains to the front tires.
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3

558What to do if... (Troubleshooting)
ES350_OM_OM33B64U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 4 7 7 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 6 0 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 4 76 , 4 8 2 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 6 7 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 4 8 2 )
●When a warning light turns on or a warning message is displayed, refer to
P. 4 76 , 4 8 2 .
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
( P. 4 8 5 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(P. 5 0 8 )
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

560Alphabetical index
ES350_OM_OM33B64U_(U)
Alphabetical index
A/CAir conditioning filter........................449
Automatic air conditioning system ..................................................364
Micro dust and pollen filter ....................................................... 369
ABS (Anti-lock Brake System)
Function ................................................. 255
Warning light ....................................... 476
Air conditioning filter .......................... 449
Air conditioning system Air conditioning filter........................449
Automatic air conditioning system ..................................................364
Micro dust and pollen filter ....................................................... 369 Airbags
Airbag operating conditions ............ 41
Airbag precautions for your child ........................................37
Airbag warning light ........................ 476
Correct driving posture .................... 28
Curtain shield airbag operating conditions ......................... 41
Curtain shield airbag precautions ...........................................37
Front passenger occupant classification system......................... 44
General airbag precautions ............37
Locations of airbags............................ 35
Modification and disposal of airbags............................................... 40
Side airbag operating conditions ............................................... 41
Side airbag precautions .....................37
Side and curtain shield airbags operating conditions ......................... 41
Side and curtain shield airbags precautions ..........................37
SRS airbags ............................................. 35
Alarm ............................................................ 67 Warning buzzer................................. 476
Anchor brackets...................................... 55
Antennas (smart access system with push-button start) ..................... 106
Anti-lock Brake System (ABS) Function .................................................. 255
Warning light ....................................... 476
Approach warning (dynamic radar cruise control).......................... 212
Armrest .................................................... 386
A

561Alphabetical index
ES350_OM_OM33B64U_(U)
Armrest door ......................................... 389
Assist grip ................................................ 390
Audio input...............................................274
Audio system
*....................................... 266
Audio input............................................ 274
AUX port............................................... 274
Bluetooth
® audio .............................. 323
CD player ..............................................299
iPod .......................................................... 306
MP3/WMA disc ...............................299
Optimal use ......................................... 285
Portable music player ....................... 314
Radio ........................................................ 292
Setup menu ........................................... 276
Steering wheel audio switches ............................................... 273
USB memory ........................................ 310
Automatic air conditioning system .................................................... 364
Automatic headlight leveling system ......................................................163
Automatic High Beam .........................164
Automatic light control system ....................................................... 161
Automatic transmission .......................156 If the shift lever cannot be shifted from P ........... 498
AUX port
*...............................................274
Auxiliary box ........................................... 381 Back-up lights
Replacing light bulbs ....................... 463
Wattage .................................................520
Battery ...................................................... 433 If the battery is discharged ..................................... 501
Preparing and checking before winter.................................................... 260
Bluetooth
®*
Audio system .........................................315
Hands-free system (for cellular phone) ....................... 325
Brake Fluid .......................................................... 432
Parking brake ....................................... 160
Warning light ....................................... 476
Brake assist ............................................. 255
Break-in tips ............................................. 139
Brightness control Instrument panel light control ........ 75
BSM (Blind Spot Monitor) ................ 247
Care Aluminum wheels ..............................409
Exterior .................................................. 408
Interior .........................................................411
Seat belts.................................................. 412
Cargo capacity ....................................... 148
Cargo hooks .......................................... 382
CD player
*............................................. 299
Chains ......................................................... 261
B
C
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.