light Lexus ES350 2017 Owner's Manuals

ES350_OM_OM33C68U_(U)
4697-3. Do-it-yourself maintenance
7
Maintenance and care
Remove the light bulb.
When installing, reverse the steps listed.
■Back-up lightsOpen the trunk lid.
For the left side (vehicles with
power trunk opener and closer
only): Pry out each side of the
trunk closer switch in turn by
inserting a screwdriver into the
base.
To prevent damage, cover the tip of
the screwdriver with a rag.
Remove the clips on whichever
side you are replacing and open
the cover of the trunk lid.
Turn the bulb base counterclock-
wise.
When installing, pass the wire around
the connector rib and make sure that
it does not rest on top of the connec-
tor rib.
3
4
1
2
3
Connector rib
4

470
ES350_OM_OM33C68U_(U)7-3. Do-it-yourself maintenance
Remove the light bulb.
When installing, reverse the steps listed.
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlight low beams
●Headlight high beams (LED type)
●Parking lights/daytime running lights
●Side turn signal lights
●Fog lights
●Stop/tail lights
●High mounted stoplight
●License plate lights
●Outer foot lights
●Rear side marker lights
■LED lights
The headlight low beams, headlight high beams (LED type), parking lights/daytime run-
ning lights, fog lights, side turn signal lights,
stop/tail lights, rear side marker lights, high
mounted stoplight and license plate lights consis t of a number of LEDs. If any of the LEDs
burn out, take your vehicle to your Lexus dealer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for more information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs
→ P. 4 6 0
5
6

ES350_OM_OM33C68U_(U)
4717-3. Do-it-yourself maintenance
7
Maintenance and care
WA R N I N G
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the
lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.

473
ES350_OM_OM33C68U_(U)
8When trouble arises
8-1. Essential informationEmergency 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

474
ES350_OM_OM33C68U_(U)8-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch once
again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating, the
battery may discharge.
The emergency flashers are used to warn other drivers when the vehicle has
to be stopped in the road due to a breakdown, etc.

482
ES350_OM_OM33C68U_(U)8-2. Steps to take in an emergency
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, but 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.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer) 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.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
→ Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pr etensioner system
→ Have the vehicle inspected by your Lexus dealer immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
•The ABS; or
• The brake assist system
→ Have the vehicle inspected by your Lexus dealer immediately.

4838-2. Steps to take in an emergency
ES350_OM_OM33C68U_(U)
8
When trouble arises
Electric power steering system warning light (warning buzzer) Indicates a malfunction in the EPS (Electric Power Steering) sys-
tem
→ Have the vehicle inspected by your Lexus dealer immediately.
(If equipped)
PCS (Pre-Collision System) warning light
●When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision System)
→Have the vehicle inspected by your Lexus dealer immediately.
●When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Collision System) is temporarily
unavailable, possibly due to either of the following:
• An area around the radar sensor or camera sensor being dirty
or covered with condensation, ice, stickers, etc.
→ Clear the dirt, condensation, ice, stickers, etc. ( →P. 1 8 2 )
• Radar sensor or camera sensor operational conditions (such as temperature etc.) being not met
→ Driving is possible in this case. The PCS (Pre-Collision Sys-
tem) will be enabled if the operational conditions (such as
temperature etc.) are met again.
●When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS (Pre-
Collision System) is disabled or both are disabled.
→ To enable the PCS (Pre-Collision System), enable both the
VSC system and PCS (Pre-Collision System). ( →P. 2 6 0 )
Slip indicator light
Indicates a malfunction in:
• The VSC system;
•The TRAC system; or
• The hill-start assist control system
→ Have the vehicle inspected by your Lexus dealer immediately.
The light will flash when the VSC or TRAC is operating.
Low fuel level warning light
Indicates that remaining fuel is approximately 2.6 gal. (9.7 L, 2.1
Imp.gal.) or less
→ Refuel the vehicle.
Seat belt reminder light (warning buzzer)*
Warns the driver and/or front passenger 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.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→ P. 4 8 8
Warning lightWarning light/Details/Actions

4848-2. Steps to take in an emergency
ES350_OM_OM33C68U_(U)
*: Driver’s and front passenger’s seat belt warning buzzer:The driver’s seat belt warning buzzer sounds to alert 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 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.
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 be lt 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.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact sensors (front), side impact sensors (rear),
driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occupant
classification system (ECU and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF”
indicator light, front passenger’s seat belt buckle switch, seat belt pretensioner assem-
blies, airbags, inte rconnecting wiring and power sources. ( →P. 3 6 )
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (→ P. 4 8 5 )
•Flat tire ( →P. 4 9 1 )
→ Adjust the tire inflation pressure 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 ( →P. 4 8 5 )
→ Have the system checked by your Lexus dealer.
(Flashes)
(If equipped)
“A F S O F F ” i n d i c a t o r Indicates a malfunction in the adaptive front-lighting system
→ Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions

4858-2. Steps to take in an emergency
ES350_OM_OM33C68U_(U)
8
When trouble arises
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound.
■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 several 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 turn 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. 4 4 6
■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
engine switch is turned to IGNITION ON mode, 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.

4868-2. Steps to take in an emergency
ES350_OM_OM33C68U_(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 usual 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.