2015 Lexus ES300h check engine light

ES350_300h_OM_OM33B99U_(U)
2114-2. Driving procedures
4
Driving
NOTICE
■To prevent 12-volt battery discharge
●Do not leave the “START STOP ENGINE” switch in ACCESSORY or IGNI-
TION ON mode for long periods of time without the engine running.
●If “POWER ON” is displayed on the multi-information display, the “START STOP
ENGINE” switch is not off. Exit the vehicle after turning the “START STOP
ENGINE” switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the
engine is stopped in another shift lever position, the “START STOP ENGINE”
switch will not be turned off but instea d be turned to ACCESSORY mode. If the
vehicle is left in ACCESSORY mode, 12-volt battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle
checked by your Lexus dealer immediately.
■Symptoms indicating a malfunction with the “START STOP ENGINE” switch
If the “START STOP ENGINE” switch seem s to be operating somewhat differently
than usual, such as the switch sticking slightly, there may be a malfunction. Contact
your Lexus dealer immediately.

230
ES350_300h_OM_OM33B99U_(U)
4-2. Driving procedures
Turn signal lever
Right turn
Lane change to the right (move
the lever partway and then
release it)
The right hand signals will flash 3
times.
Lane change to the left (move the
lever partway and then release it)
The left hand signals will flash 3 times.
Left turn
■Turn signals can be operated when
The “START STOP ENGINE” <“POWER”> switch is in IGNITION ON
mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or re ar turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
■To discontinue flashing of the tu rn signals during a lane change
Operate the lever in the opposite direction.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(  P. 7 3 0 )
Operating instructions
1
2
3
4

ES350_300h_OM_OM33B99U_(U)
2474-3. Operating the lights and wipers
4
Driving
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to AUTO position while the “START STOP ENGINE”
<“POWER”> switch is in IGNITION ON mode, the wipers will operate once
to show that AUTO mode is activated.
●When the sensor sensitivity ring is turned toward high while in AUTO mode, the
wipers will operate once to indicate that the sensor sensitivity is enhanced.
●If the temperature of the raindrop sensor is 185°F (85°C) or higher, or -22°F
(-30°C) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than AUTO mode.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.
CAUTION
■Caution regarding the use of windshield wipers in AUTO mode (vehicles with
rain-sensing windshield wipers)
The windshield wipers may operate unexpect edly if the sensor is touched or the
windshield is subject to vibration in AUTO mode. Take care that your fingers or
anything else do not become ca ught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm.
The fluid may freeze on the windshield and cause low visibility. This may lead to an
accident, resulting in death or serious injury.

521
ES350_300h_OM_OM33B99U_(U)
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior................. 522
Cleaning and protecting the vehicle interior .................. 526
7-2. Maintenance Maintenance requirements............................. 529
General maintena nce .............. 532
Emission inspection and maintenance (I/M)
programs .................................... 536
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................ 537
Hood ................................................ 541
Positioning a floor jack ............. 542
Engine compartment ............... 545
12-volt battery (hybrid vehicles) ...................... 562
Tires .................................................. 566
Tire inflation pressure ................577
Wheels .......................................... 580
Air conditioning filter ...............582
Electronic key battery ..............584
Checking and replacing fuses ..............................................586
Light bulbs.....................................598

ES350_300h_OM_OM33B99U_(U)
5697-3. Do-it-yourself maintenance
7
Maintenance and care
◆Registering ID codes
The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Lexus dealer.
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits , cracks deep enough to expose the fabric,
and bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or loca-
tion of a cut or other damage
If you are not sure, consul t with your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the
tire pressure warning system will not work properly. After driving for about 20 min-
utes, the tire pressure warning light blinks for 1 minute and stays on to indicate a sys-
tem malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has sel-
dom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.
■When rotating the tires
Make sure that the “START STOP ENGINE” <“POWER”> switch is off. If the tires are
rotated while the “START STOP ENGINE” <“POWER”> switch is in IGNITION ON
mode, the tire position in formation will not be updated.
If this accidentally occurs, either turn the “START STOP ENGINE” <“POWER”>
switch to off and then to IGNITION ON mode, or initialize the system after
checking that the tire pressure is properly adjusted.

6328-2. Steps to take in an emergency
ES350_300h_OM_OM33B99U_(U)
■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
Vehicles with a compact spare tire: The compact spare tire is not equipped with a tire
pressure warning valve and transmitter. 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.
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
inflation pressure of the spare tire is low. 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. 5 7 1
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when
the “START STOP ENGINE” <“POWER”> switch is turned to IGNITION ON
mode, have it checked by your Lexus dealer.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■Warning buzzer
In some cases, the buzzer may not be he ard because of noisy place or an audio
sound.

6478-2. Steps to take in an emergency
ES350_300h_OM_OM33B99U_(U)
8
When trouble arises
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the hybrid
system has overheatedThis message may be
displayed when driving
under severe operating
conditions. (For exam-
ple, when driving up a
long steep hill.)
Stop and check.
( P. 6 9 1 )
Indicates that remaining
fuel is approximately 2.6
gal. (9.7 L, 2.1 Imp.gal.) or
less
Refuel the vehicle.
Indicates that the “START
STOP ENGINE”
<“POWER”> switch is
turned off or turned to
ACCESSORY mode and
the driver’s door is
opened while the lights
are turned on
Tu r n t h e l i g h t s o f f .
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P
Shift the shift position to P.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
(Hybrid vehicles)
(Flashes)
(Flashes)
(Hybrid vehicles)

6528-2. Steps to take in an emergency
ES350_300h_OM_OM33B99U_(U)
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Have the malfunction repaired immediately.
Interior buzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
The electronic key
is not detected
when an attempt is
made to start the
engine tem>.Start the
engine
system>
with the
electronic
key present.
Once3
times
The electronic key
was carried out-
side the vehicle and
a door other than
the driver’s door
was opened and
closed while the
“START STOP
ENGINE”
<“POWER”> switch
was in a mode
other than off.
Bring the
electronic
key back
into the
vehicle.
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was in
P and the “START
STOP ENGINE”
<“POWER”> switch
was not turned off.Tu r n t h e
“START
STOP
ENGINE”
<“POWER”>
switch off or
bring the
electronic
key back
into the
vehicle.
(Flashes)
(Flashes)