check engine light Lexus ES300h 2013 User Guide

649
ES350 300h_OM_OM33A01U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior.................650
Cleaning and protecting the vehicle interior .................. 654
6-2. Maintenance Maintenance requirements............................. 657
General maintenance ..............660
Emission inspection and maintenance (I/M)
programs .................................... 664
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 665
Hood ............................................... 669
Positioning a floor jack ............. 670
Engine compartment ................673
12-volt battery (hybrid vehicles) ......................690
Tires.................................................. 694
Tire inflation pressure ............... 703
Wheels ........................................... 706
Air conditioning filter ............... 708
Electronic key battery ............... 710
Checking and replacing fuses................................................712
Light bulbs......................................724

ES350 300h_OM_OM33A01U_(U)
6976-3. Do-it-yourself maintenance
6
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, consult 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 information 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.

7557-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
*1: Open door warning buzzer:→ P. 76 6
*2: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is
not fastened. Once the “START STOP ENGINE” <“POWER”> 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 30 seconds, the buzzer will sound intermittently for 10 sec-
onds. Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt 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 30 seconds,
the buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 20 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such
as • Natural causes ( →P. 7 5 7 )
• Flat tire ( →P. 7 8 4 )
Adjust the tire inflation pressure
(including the full-size spare
tire) to the specified level.
The light will turn off after a
few minutes. In case the light
does not turn off even if the
tire inflation pressure is
adjusted, have the system
checked by your Lexus
dealer.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pressure
warning system
Have the system checked by
your Lexus dealer.
Warning lightWarning light/DetailsCorrection procedure

7577-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
■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. 6 9 9
■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 heard because of noisy place or an audio
sound.

7727-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
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. 8 1 6 )
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
Turn the lights off.
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.
Warning messageDetailsCorrection procedure
(If equipped)
(Hybrid vehicles)
(Flashes)
(Flashes)
(Hybrid vehicles)

7777-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Have the malfunction repaired immediately.
InteriorbuzzerExterior
buzzerWarning messageDetailsCorrection procedure
Once
The electronic key
is not detected
when an attempt is
made to start the
engine tem>.Start the
engine with
the elec-
tronic 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)

886What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(→
P. 7 5 4 )
●The parking brake indicator is on
Is the parking brake released? (→ P. 222)
Depending on the situation, othe r types of warning buzzer may
also sound. ( →P. 751, 761)
●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( →P. 8 4 )
To stop the alarm, turn the “START STOP ENGINE” <“POWER”>
switch to IGNITION ON mode or start the engine system>.
●Is the electronic key left inside the vehicle or the moon roof
opened?
Check the message on the multi-information display.
(→ P. 76 1 )
A warning buzzer sounds during driving
An alarm is activated
and the horn sounds
A warning buzzer sounds wh en leaving the vehicle

892Alphabetical index
ES350 300h_OM_OM33A01U_(U)
Emergency, in case ofIf the 12-volt battery is
discharged ........................... 805, 809
If the electronic key
does not operate properly ....... 802
If the engine will not start................ 797
If the hybrid system will not start ................................................799
If the shift lever cannot be shifted from P .............801
If the warning buzzer sounds................................................... 751
If the warning light turns on............ 751
If the warning message is displayed ..........................................761
If you have a flat tire ..........................784
If you think something is wrong...............................................749
If your vehicle becomes stuck ..................................................... 820
If your vehicle has to be stopped in an emergency ............741
If your vehicle needs to be towed ....................................... 743
If your vehicle overheats ...... 813, 816
Emergency flashers ............................. 740
Energy monitor ........................................ 110 Engine
Accessory mode ................................ 198
Compartment ..................................... 673
Engine switch ............................197, 204
Hood........................................................669
How to start the engine.................... 197
How to start the hybrid system .................................................. 204
Identification number ....................... 826
If the engine will not start ............... 797
Ignition switch (“POWER” switch).................................................. 204
Ignition switch (“START STOP ENGINE” switch) ........................... 197
Overheating................................813, 816
“Power” switch. ................................... 204
“START STOP ENGINE” switch ..................................................... 197
Engine compartment cover..............675
Engine coolant Capacity .................................................. 831
Checking ................................................ 681
Preparing and checking before winter .................................... 326
Engine coolant temperature gauge .........................................................93
Engine immobilizer system ................. 80
Engine oil Capacity ................................................. 829
Checking ............................................... 676
Oil level warning message ........... 769
Oil pressure warning message........................... 762
Preparing and checking
before winter .................................... 326