2018 Lexus ES350 check engine

TABLE OF CONTENTS6
ES350_OM_OM06134U_(U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ..................412
Cleaning and protecting the vehicle interior....................415
7-2. Maintenance Maintenance requirements ............................. 418
General mainte nance................421
Emission inspection and maintenance (I/M)
programs.................................... 424
7-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 425
Hood ................................................427
Positioning a floor jack ............ 428
Engine compartment ............... 429
Tires ................................................. 440
Tire inflation pressure .............. 450
Wheels ........................................... 453
Air conditioning filter ............... 455
Electronic key battery.............. 457
Checking and replacing fuses.............................................. 459
Light bulbs .................................... 462 8-1. Essential information
Emergency flashers ...................474
If your vehicle has to be stopped in an emergency ... 475
8-2. Steps to take in an emergency If your vehicle needs to be towed ............................... 476
If you think something is wrong................480
Fuel pump shut off system....... 481
If a warning light turns on or a warning buzzer sounds .... 482
If a warning message is displayed ................................488
If you have a flat tire ....................491
If the engine will not start ........ 502
If the electronic key does not operate properly..................... 504
If the battery is discharged..... 506
If your vehicle overheats.......... 510
If the vehicle becomes stuck ...............................................513
7Maintenance and care8When trouble arises

8
ES350_OM_OM06134U_(U)
For your information
The Owner’s Manual provides instructions on the proper operation of this vehicle. The
driver should read the Owner’s Manual prior to driving the vehicle. Failure to follow the
instructions in the Owner’s Manual could lead to an accident, resulting in death or seri-
ous injury.
Please note that this manual applies to all models and explains all equipment, including
options. Therefore, you may find some expl anations for equipment not installed on your
vehicle.
All specifications provided in this manual are current at the time of printing. However,
because of the Lexus policy of continual pr oduct improvement, we reserve the right to
make changes at any time without notice.
Depending on specifications, th e vehicle shown in the illustrations may differ from your
vehicle in terms of color and equipment.
Approximately five hours after the engine is turned off, you may hear sound coming from
under the vehicle for several minutes. This is the sound of a fuel evaporation leakage
check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are cur-
rently available in the market. You should kn ow that Toyota does not warrant these prod-
ucts and is not responsible fo r their performance, repair, or replacement, or for any
damage they may cause to, or adverse effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification with
non-genuine Lexus products could affect its performance, safety or durability, and may
even violate governmental regulations. In addition, damage or performance problems
resulting from the modification may not be covered under warranty.
The installation of a mobile two-way radio system in your vehicle could affect electronic
systems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Dynamic radar cruise control system
●Cruise control system
●Anti-lock brake system
●SRS airbag system
●Seat belt pretensioner system
●Lexus Safety System+
Be sure to check with your Lexus dealer for precautionary measures or special instruc-
tions regarding installation of a mobile two-way radio system.
Main Owner’s Manual
Noise from under vehicle after turning off the engine
Accessories, spare parts and modification of your Lexus
Installation of a mobile two-way radio system

15Pictorial index
ES350_OM_OM06134U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 262
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . . P. 371
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 413
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 177
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 177
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 440
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 522
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 26 2
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 440
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 427
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 427
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 510
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 488
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 165
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 165
Fog lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 163
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 165
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 165
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 159
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 165
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 462, Watts: P. 524)
*: If equipped
8
9
10
11
12
13
14
15

271-1. For safe use
ES350_OM_OM06134U_(U)
1
For safety and security
WARNING
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the ped-
als while driving. An unexpectedly high spee d may result or it may become difficult to
stop the vehicle. This could lead to an ac cident, resulting in death or serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seating position.
●Always install the floor mat securely using the retain ing hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bottom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided retain-
ing hooks (clips). Be especially careful to per-
form this check after cleaning the floor.
●With the engine stopped and the shift lever in
P, fully depress each pedal to the floor to
make sure it does not interfere with the floor
mat.

641-1. For safe use
ES350_OM_OM06134U_(U)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open the
windows and have the vehicle inspected at your Lexus dealer as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the
engine.
●Do not leave the vehicle with the engine running for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and ensure
that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it is snowing.
If snowbanks build up around the vehicle while the engine is running, exhaust gases
may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused
by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle
inspected and repaired by your Lexus dealer.

ES350_OM_OM06134U_(U)
732. Instrument cluster
2
Instrument cluster
Warning lights inform the driver of malfunctions in the indicated vehicle’s sys-
tems.
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to indicate that a system check is being performed. They will turn off after the engine is
on, or after a few seconds. There may be a ma lfunction in a system if a light does not
come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes or illuminate s to indicate a malfunction.
*3: The light flashes to indicate a malfunction.
Warning lights
*1
(U.S.A.)
Brake system warning light
(→ P. 482)*1Electric power steering
system warning light
(→ P. 483)
*1
(Canada)
Brake system warning light
(→ P. 482)*1Slip indicator light
(→ P. 483)
*1
(U.S.A.)
Malfunction indicator lamp
(→ P. 482)Low fuel level warning light
(→ P. 483)
*1
(Canada)
Malfunction indicator lamp
(→ P. 482)Seat belt reminder light
(→ P. 483)
*1SRS warning light
(→ P. 482)*1Master warning light
(→ P. 483)
*1
(U.S.A.)
ABS warning light
(→ P. 482)*1Tire pressure warning light
(→ P. 484)
*1
(Canada)
ABS warning light
(→ P. 482)
*1, 3
(if equipped)
“AFS OFF” indicator
(→ P. 484)
*1, 2
(if equipped)
PCS warning light
(→ P. 483)

ES350_OM_OM06134U_(U)
752. Instrument cluster
2
Instrument cluster
*1: These lights turn on when the engine switch is turned to IGNITION ON mode toindicate that a system check is being performed. They will turn off after the engine is
on, or after a few seconds. There may be a ma lfunction in a system if a light does not
come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light turns on when the system is turned off.
*4: In order to confirm operation, the BSM outside rear view mirror indicators illuminate
in the following situations:
• When the engine switch is turned to IGNITION ON mode while the BSM main switch is set to ON.
• When the BSM main switch is set to ON while the engine switch is in IGNITION
ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators will
turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not turn off,
there may be a malfunction with the system. If this occurs, have the vehicle inspected
by your Lexus dealer.
*5: This light illuminates on the outside rear view mirrors.
*6: This light illuminates on the center panel.
*7: When the outside temperature is approximately 37 °F (3 °C) or lower, the indicator
will flash for approximately 10 seconds, then stay on.
WARNING
■If a safety system warnin g light does not come on
Should a safety system light such as the ABS and SRS warning light not come on when
you start the engine, this could mean that these systems are not available to help pro-
tect you in an accident, which could result in death or serious injury. Have the vehicle
inspected by your Lexus dealer immediately if this occurs.

ES350_OM_OM06134U_(U)
792. Instrument cluster
2
Instrument cluster
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indicates
the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the red
zone (H); or “Engine Coolant Temp High” is shown on the multi-information display.
In this case, immediately stop the vehicle in a safe place, and check the engine after it
has cooled completely. ( →P. 510)