
2976-2. Maintenance
6
Maintenance and care
Radiator/con-
denser
The radiator and con-
denser should be free 
from foreign objects. 
( P.309)
Washer fluid
Is there sufficient 
washer fluid? 
( P.310)
Trunk
ItemsCheck points
12-volt battery
Check the battery fluid 
level and connections. 
( P.311)
Vehicle interior
ItemsCheck points
Accelerator 
pedal
• The accelerator 
pedal should move 
smoothly (without 
uneven pedal effort 
or catching).
Automatic trans-
mission “Park” 
mechanism 
(LC500)/Hybrid 
transmission 
“Park” mecha-
nism (LC500h)
•When parked on a slope and the shift 
position is in P, is the 
vehicle securely 
stopped?
ItemsCheck points
Brake pedal
•Does the brake pedal move 
smoothly?
•Does the brake  pedal have appro-
priate clearance 
from the floor?
•Does the brake  pedal have the cor-
rect amount of free 
play?
Brakes
•The vehicle should not pull to one side 
when the brakes are 
applied.
• The brakes should  work effectively.
• The brake pedal  should not feel 
spongy.
• The brake pedal  should not get too 
close to the floor 
when the brakes are 
applied.
Head restraints
•Do the head restraints move 
smoothly and lock 
securely?
Indicators/buzz-
ers•Do the indicators and buzzers function 
properly?
Lights
• Do all the lights come on?
• Are the headlights  aimed correctly?
ItemsCheck points 

3346-3. Do-it-yourself maintenance
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid,  make sure that the 
tab is installed securely.
●If the lights do not turn on even after the 
fuse has been replaced, a bulb may need 
replacement. ( P.336)
●If the replaced fuse blows again, have the 
vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting 
the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine 
Lexus products designed for this vehicle. 
Because certain bulbs are connected to cir-
cuits designed to prevent overload, non-
genuine parts or parts not designed for this 
vehicle may be unusable.
WARNING
■To prevent system breakdowns and 
vehicle fire
Observe the following precautions.
Failure to do so may cause damage to 
the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage 
rating than that indicated, or use any 
other object in place of a fuse.
A
B
●Always use a genuine Lexus fuse or 
equivalent.
Never replace a fuse  with a wire, even 
as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload 
determined and repaired by your Lexus 
dealer as soon as possible. 

3366-3. Do-it-yourself maintenance
■LED lights
The following lights 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.
●Headlights
●Parking lights and daytime running lights
●Front side marker lights
●Front turn signal lights
●Cornering lights
●Side turn signal lights
●Tail lights
●Stop lights
●Rear side marker lights
●Rear turn signal lights
●Back-up lights
●High mounted stoplight
●License plate lights
■Condensation build-up on the inside of 
the lens
Temporary condensation build-up on the 
inside of the headlight lens does not indi-
cate a malfunction. Contact your Lexus 
dealer for more information in the following 
situations:
●Large drops of water ha ve built up on the 
inside of the lens.
●Water has built up inside the headlight.
Light bulbs
If any lights burn out, have it 
replaced by your Lexus dealer.
WARNING
■Handling lights
Do not touch the lights while they are on 
or immediately after they have been 
turned off. Doing so may result in burns. 

3387-1. Essential information
7-1.Essential information
Press the switch to flash all of the turn 
signal lights.
To turn them off, press the switch once 
again.
■Emergency flashers
●LC500: If the emergency flashers are 
used for a long time while the engine is 
not running, the 12-volt battery may dis-
charge.
LC500h: If the emergency flashers are 
used for a long time while the hybrid sys-
tem is not operating (while the “READY” 
indicator is not illuminated), the 12-volt 
battery may discharge.
●If any of the SRS airbags deploy (inflate) 
or in the event of a strong rear impact, the 
emergency flashers will turn on automati-
cally. The emergency flashers will turn off 
automatically after operating for approxi-
mately 20 minutes. To manually turn the 
emergency flashers off, press the switch 
twice. (The emergency flashers may not 
turn on automatically depending on the 
force of the impact and conditions of the 
collision.)
1Steadily step on the brake pedal 
with both feet and firmly depress it.
Do not pump the brake pedal repeatedly 
as this will increase the effort required to 
slow the vehicle.
2Shift the shift position to N.
If the shift position is shifted to N
3 After slowing down, stop the vehi-
cle in a safe place by the road.
4 Stop the engine 
If the shift position cannot be shifted 
to N
3 Keep depressing the brake pedal 
with both feet to reduce vehicle 
speed as much as possible.
4 To stop the engine 
press and hold the engine switch 
Emergency flashers
The emergency flashers are used to 
warn other drivers when the vehicle 
has to be stopped in the road due to 
a breakdown, etc.
Operating instructions
If your vehicle has to be 
stopped in an emergency
Only in an emergency, such as if it 
becomes impossible to stop the 
vehicle in the normal way, stop the 
vehicle using the following proce-
dure:
Stopping the vehicle 

3477-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light (warning buzzer)
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light (warning buzzer)*
*: This light illuminates on the multi-information display.
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, bu t 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.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
This light also comes on when the pa rking brake is not released. If the 
light turns off after the parking brake is  fully released the system is oper-
ating normally.
 Immediately stop the vehicle in a  safe place and contact your Lexus 
dealer. Continuing to drive the vehicle may be dangerous.
 Indicates that the brake pads are worn out (only the right-side pads 
can be detected)
 Have the vehicle inspected by your Lexus dealer.
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a  safe place and contact your Lexus 
dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a  safe place and contact your Lexus 
dealer. 

3517-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warning buzzer)*
*: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to al ert the driver that his or her seat belt is not 
fastened. Once the engine switch 
tently for a certain period of time af ter the vehicle reaches a certain speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer  sounds to alert the front passenger that his 
or her seat belt is not fastened. If the seat  belt is unfastened, the buzzer sounds intermit-
tently for a certain period of time af ter the vehicle reaches a certain speed.
■Rear passengers’ seat belt reminder lights (warning buzzer*1)*2
*1: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat  belt warning buzzer sounds to alert the rear passenger that his or 
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in:
The electronically controlled brake system
 The regenerated braking system (LC500h)
 The parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that remaining  fuel is approximately 3.3 gal. [12.6 L, 2.8 
Imp.gal.] or less
 Refuel the vehicle.
Warning lightDetails/Actions
Warns the driver and/or front passe nger 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.
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt. 

3547-2. Steps to take in an emergency
■The tire pressure warning light may come on due to natural causes
The tire pressure warnin g light may come on due to natural  causes such as natural air leaks 
and tire inflation pressure chan ges caused by temperature. In this case, adjusting the tire 
inflation pressure will turn off the warning light (after a few minutes).
■Situations in which the tire pressure warning system may not function properly
 P.316
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning lig ht frequently comes on after blinking for 1 minute when the 
engine switch 
checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled. 
(Customizable features:  P.405)
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehicle 
will become extremely unstable during brakin g, 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
When the light comes on in yellow, the assist to the power steering is restricted. When the 
light comes on red, the assist  to the power steering is lost and handling operations of the 
steering wheel become extremely heavy. When steering wheel operations are heavier 
than usual, grip the steering  wheel firmly and operate it 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 vehi-
cle control and result in death or serious injury.
●Decelerate to the lowest appr opriate speed as soon as possible. Do not drive over 50 
mph (80 km/h).
●Check and adjust the tire in flation pressure immediately.
●If the tire pressure warning lig ht comes on even after tire inflation pressure adjustment, 
it is probable that you have  a flat tire. Have the flat tire replaced by the nearest Lexus 
dealer.
●Avoid abrupt maneuvering and braking. If th e 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. 

3577-2. Steps to take in an emergency
7
When trouble arises
The warning lights and warning buzzers operate as follows depending on the con-
tent of the message. If a message indicates  the need for inspection by a dealer, have 
the vehicle inspected by your Lexus dealer immediately.
*: A buzzer sounds the first time a message  is shown on the multi-information display.
■Warning messages
The warning messages explained below may differ from the actual messages according to 
operation conditions and  vehicle specifications.
■System warning lights
The master warning light does not come on or  flash in the following cases. Instead, a sepa-
rate system warning light will  come on along with a message or image shown on the multi-
information display.
●Malfunction in the ABS
The ABS warning light comes on. ( P.348)
●Malfunction in the charging system
The charging system warning light comes on. ( P.347)
●Malfunction in the brake system
The brake system warning light comes on. ( P.347)
Messages and warnings
System warn-
ing lightWarning 
buzzer
*Warning
Comes onComes onSoundsIndicates an important situation, such as 
when a system related  to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
Comes onSounds
Comes on or  flashesSounds
Indicates an important situation, such as 
when the systems shown on the multi-infor-
mation display may be malfunctioning
FlashesSoundsIndicates a situation, such as when damage 
to the vehicle or danger may result
Comes onDoes not soundIndicates a condition, such as malfunction of 
electrical components, their condition, or 
indicates the need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an oper-
ation has been performed incorrectly, or 
indicates how to perform an operation cor-
rectly