Page 732 of 908
732
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
■Front side marker lightsPartly remove the fender liner.
Perform the procedure for “Front turn signal lights” from step 1 to 2.
( P. 730)
Turn the bulb base counter-
clockwise.
Remove the code from clip.
Remove the light bulb.
1
2
3
4
Page 734 of 908
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ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
■Rear turn signal lightsOpen the trunk lid and remove
the cover.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
When installing, reverse the steps listed.
1
2
3
4
Page 735 of 908
ES350 300h_OM_OM33A01U_(U)
7356-3. Do-it-yourself maintenance
6
Maintenance and care
■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 counter-
clockwise.
When installing, pass the wire
around the connector rib and make
sure that it does not rest on top of
the connector rib.
Remove the light bulb.
When installing, reverse the steps listed.
1
2
3
Connector rib
4
5
6
Page 736 of 908

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ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your
Lexus dealer.
●Headlight low beams (discharge bulbs)
●Parking lights and daytime running lights
●Side turn signal lights
●Stop/tail lights
●Tail lights
●Rear side marker lights
●High mounted stoplight
●License plate lights
●Outer foot lights
■Discharge headlights (if equipped)
If voltage to the discharge bulbs is insufficient, the bulbs may not come on, or may go
out temporarily. The discharge bulbs will come on when normal power is restored.
■LED lights
The lights other than the headlights, fog lights, front turn signal lights, front side
marker lights, rear turn signal lights, back-u p lights and outer foot lights each consist
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
Contact your Lexus dealer for more information in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●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. 7 2 3
Page 737 of 908

ES350 300h_OM_OM33A01U_(U)
7376-3. Do-it-yourself maintenance
6
Maintenance and care
CAUTION
■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. Hold the bulb by
the plastic or metal portion.
If the bulb is scratched or drop ped, 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 en tering the headlight unit. This may damage
the headlights or cause condensati on to build up on the lens.
■Discharge headlights (if equipped)
●Contact your Lexus dealer before replacing the discharge he adlights (including
light bulbs).
●Do not touch the discharge headlight’s high voltage socket when the headlights
are turned on.
An extremely high voltage of 25000 V will be discharged and could result in
death or serious injury by electric shock.
●Do not attempt to take apart or repair the headlight bulbs, connectors, power
supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.
■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.
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ES350 300h_OM_OM33A01U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers................... 740
If your vehicle has to be stopped in an emergency ...... 741 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................. 743
If you think something is wrong ................. 749
Fuel pump shut off system (gasoline vehicles) .................. 750
If a warning light turns on or a warning buzzer sounds ....... 751
If a warning message is displayed .................................. 761
If you have a flat tire................... 784
If the engine will not start (gasoline vehicles) ...................797
If the hybrid system will not start (hybrid vehicles) ............ 799
If the shift lever cannot be shifted from P ...................... 801
If the electronic key does not operate properly .....................802
If the 12-volt battery is discharged (gasoline
vehicles) ..................................... 805
If the 12-volt battery is discharged (hybrid
vehicles) ..................................... 809
If your vehicle overheats (gasoline vehicles) ................... 813
If your vehicle overheats (hybrid vehicles) ....................... 816
If the vehicle becomes stuck .............................................820
Page 740 of 908
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ES350 300h_OM_OM33A01U_(U)
7-1. 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
Gasoline vehicles: If the emergency flashers are used for a long time while the
engine is not operating, the 12-volt battery may discharge.
Hybrid vehicles: If the emergency flashers are used for a long time while the hybrid
system is not operating (while the “READY” indicator is not illuminated), the 12-volt
battery may discharge.
The emergency flashers are used to warn other drivers when the vehi-
cle has to be stopped in the road due to a breakdown, etc.
Ty p e AType B
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ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Brake system warning buzzer (hybrid vehicles): When there is a possible problem that could affect braking performance, the
warning light will come on an d a warning buzzer will sound.
Parking brake engaged warning buzzer:
P. 76 8
■Brake system warning light operation (hybrid vehicles)
Although depressing the brake pedal repeatedly may cause the red brake system
warning light to turn on and the buzzer to sound, this does not indicate a malfunction.
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 necessarily indicate a malfunction in the system. However, if this
continues to occur, have the vehicle inspected by your Lexus dealer.
Stop the vehicle immediately. Cont inuing to drive the vehicle may
be dangerous.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*
•Low brake fluid
• Malfunction in the brake booster system
This light also comes on when the parking brake is not released.
If the light turns off after the parking brake is fully released the
system is operating normally.