
1774-3. Operating the lights and wipers
4
Driving
out using the headlights is detected.
●House lights, street lights, traffic signals, 
and illuminated billboards or signs may 
cause the high beam to switch to the low 
beams, or the low beams to remain on.
●The following factors may affect the 
amount of time taken to turn the high 
beam on or off:
• The brightness of headlights, fog lights,  and tail lights of vehicles ahead
• The movement and direction of vehicles  ahead
• When a vehicle ahead only has opera-
tional lights on one side
• When a vehicle ahead is a two-wheeled  vehicle
• The condition of the road (gradient,  curve, condition of the road surface etc.)
• The number of passengers and amount of 
luggage
●The high beam may be turned on or off 
when the driver does not expect it.
●Bicycles or similar objects may not be 
detected.
●In the situations show n below, the system 
may not be able to accurately detect sur-
rounding brightness levels. This may 
cause the low beams to remain on or the 
high beams to cause problems for pedes-
trians, vehicles ahead or other parties. In 
these cases, manually switch between the 
high and low beams.
• In bad weather (rain, snow, fog, sand- storms etc.)
• The windshield is obscured by fog, mist,  ice, dirt etc.
• The windshield is  cracked or damaged.
• The camera sensor is deformed or dirty.
• Surrounding brightness levels are equal  to those of headlights, tail lights or fog 
lights.
• Vehicles ahead have headlights or tail  lights that are either switched off, dirty, 
changing color, or have improperly 
adjusted aim.
• When driving through an area of inter- mittently changing brightness and dark-
ness.
• When frequently and repeatedly driving  ascending/descending roads, or roads 
with rough, bumpy or uneven surfaces 
(such as stone-paved roads, gravel tracks  etc.).
• When frequently and repeatedly taking  curves or driving on a winding road.
• There is a highly re flective object ahead 
of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or 
dirty.
• The vehicle is listing or titling, due to a flat  tire, a trailer being towed etc.
• The driver believes that the high beam  may be causing problems or distress to 
other drivers or pedestrians nearby.
■Temporarily lowering  sensor sensitivity
The sensitivity of the sensor can be tempo-
rarily lowered.
1 Turn the engine switch 
off while the following conditions are 
met.
• The headlight swit ch is in   or  .
• The headlight switch lever is in high beam  position.
• Automatic High Be am switch is on.
2 Turn the engine switch 
to IGNITION ON mode 
3 Within 30 seconds after  2, repeat pull-
ing the headlight switch lever to the 
original position then pushing it to the 
high beam position quickly 10 times, 
then leave the lever in high beam posi-
tion.
4 If the sensitivity is changed, the Auto-
matic High Beam indicator turns on and 
off 3 times.
Automatic High Beam (headlights) may 
turn on even the vehicle is stopped.
■Switching to low beam
Pull the lever to the original position.
The Automatic High Beam indicator will 
turn off.
Push the lever away from you to activate 
the Automatic High Beam system again.
Turning the high beam on/off 
manually 

1884-5. Using the driving support systems
WARNING
●If the part of the windshield in front of 
the camera sensor is fogged up or 
covered with condensation or ice, use 
the windshield defogger to remove the 
fog, condensation or ice. (P.249)
●If water droplets cannot be properly 
removed from the area of the wind-
shield in front of the camera sensor by 
the windshield wipers, replace the 
wiper insert or wiper blade. 
If the wiper inserts or wiper blades 
need to be replaced, contact your 
Lexus dealer.
●Do not attach window tinting to the 
windshield.
●Replace the windshield  if it is damaged 
or cracked. 
If the windshield needs to be replaced, 
contact your Lexus dealer.
●Do not get the camera sensor wet.
●Do not allow bright lights to shine into 
the camera sensor.
●Do not dirty or damage the camera 
sensor. 
When cleaning the inside of the wind-
shield, do not allow glass cleaner to 
contact the lens. Also, do not touch the 
lens. 
If the lens is dirty or damaged, contact 
your Lexus dealer.
●Do not subject the camera sensor to a 
strong impact.
●Do not change the installation position 
or direction of the camera sensor or 
remove it.
●Do not disassemble  the camera sen-
sor.
●Do not modify any components of the 
vehicle around the camera sensor 
(inside rear view mirror, etc.) or ceiling.
●Do not attach any accessories that 
may obstruct the camera sensor to the 
hood, front grille or front bumper. 
Contact your Lexus dealer for details.
●If a surfboard or other long object is to 
be mounted on the roof, make sure 
that it will not obstruct the camera sen-
sor.
●Do not modify the headlights or other 
lights. 

1944-5. Using the driving support systems
road or a wall that may be mistaken for a 
vehicle or pedestrian
• When driving near an  object that reflects 
radio waves, such as a large truck or 
guardrail
• When driving near a TV tower, broad-
casting station, electric power plant, or 
other location where  strong radio waves 
or electrical noise may be present
■Situations in which the system may not 
operate properly
●In some situations such as the following, a 
vehicle may not be detected by the radar 
sensor and camera sensor, preventing 
the system from operating properly:
• If an oncoming vehicle is approaching  your vehicle
• If a vehicle ahead is a motorcycle or bicy-
cle
• When approaching the side or front of a  vehicle
• If a preceding vehicle has a small rear  end, such as an unloaded truck
• If a preceding vehicle has a low rear end, 
such as a low bed trailer
• If a vehicle ahead is carrying a load which  protrudes past its rear bumper
• If a vehicle ahead has extremely high  ground clearance
• If a vehicle ahead is irregularly shaped,  such as a tractor or side car
• If the sun or other light is shining directly 
on a vehicle ahead
• If a vehicle cuts in front of your vehicle or  emerges from beside a vehicle
• If a vehicle ahead makes an abrupt  maneuver (such as sudden swerving, 
acceleration or deceleration)
• When suddenly cutting behind a preced- ing vehicle
• When a vehicle ahead is not directly in  front of your vehicle
• When driving in incl ement weather such 
as heavy rain, fog, snow or a sandstorm
• When the vehicle is hit by water, snow, 
dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When driving in a place where the sur- rounding brightness changes suddenly, 
such as at the entrance or exit of a tunnel
• When a very bright light, such as the sun 
or the headlights of oncoming traffic, 
shines directly into the camera sensor
• When the surrounding area is dim, such 
as at dawn or dusk, or while at night or in 
a tunnel
• After the engine 
started the vehicle has not been driven 
for a certain amount of time
• While making a left/r ight turn and for a 
few seconds after making a left/right turn
• While driving on a curve and for a few  seconds after driving on a curve
• If your vehicle is skidding
• If the front of the vehicle is raised or low- ered
• If the wheels are misaligned
• If a wiper blade is blocking the camera  sensor 

1984-5. Using the driving support systems
Press the LKA switch to turn the LKA 
system on.
The LKA indicator illuminates and a mes-
sage is displayed on the multi-information 
display.
Press the LKA switch again to turn the 
LKA system off.
When the LKA system is turned on or off, 
operation of the LKA system continues in 
the same condition the next time the 
engine 
WARNING
■Before using LKA system
Do not rely solely upon the LKA system. 
The LKA system does not automatically 
drive the vehicle or reduce the amount of 
attention that must be paid to the area in 
front of the vehicle. The driver must 
always assume full responsibility for driv-
ing safely by paying careful attention to 
the surrounding conditions and operat-
ing the steering wheel to correct the path 
of the vehicle. Also, the driver must take 
adequate breaks when fatigued, such as 
from driving for a long period of time.
Failure to perform appropriate driving 
operations and pay careful attention may 
lead to an accident,  resulting in death or 
serious injury.
■To avoid operating LKA system by 
mistake
When not using the LKA system, use the 
LKA switch to turn the system off.
■Situations unsuitable for LKA system
Do not use the LKA system in the follow-
ing situations. 
The system may not operate properly 
and lead to an accident, resulting in 
death or serious injury.
●A spare tire, tire chains, etc. are 
equipped.
●When the tires have been excessively 
worn, or when the tire inflation pres-
sure is low.
●Tires which differ by structure, manu-
facturer, brand or tread pattern are 
used.
●Objects or patterns  that could be mis-
taken for white (yellow) lines are pres-
ent on the side of th e road (guardrails, 
curbs, reflective poles, etc.).
●Vehicle is driven on a snow-covered 
road.
●White (yellow) lines are difficult to see 
due to rain, snow, fog, dust, etc.
●Asphalt repair marks, white (yellow) 
line marks, etc. are present due to road 
repair.
●Vehicle is driven in  a temporary lane or 
restricted lane due to construction 
work.
●Vehicle is driven on a road surface 
which is slippery due to rainy weather, 
fallen snow, freezing, etc.
●Vehicle is driven in traffic lanes other 
than on highways and freeways.
●Vehicle is driven in a construction 
zone.
■Preventing LKA system malfunctions 
and operations performed by mistake
●Do not modify the headlights or place 
stickers, etc. on the surface of the 
lights.
●Do not modify the suspension etc. If 
the suspension etc. needs to be 
replaced, contact your Lexus dealer.
●Do not install or place anything on the 
hood or grille. Also, do not install a 
grille guard (bull bars, kangaroo bar, 
etc.).
●If your windshield  needs repairs, con-
tact your Lexus dealer.
Turning LKA system on 

2014-5. Using the driving support systems
4
Driving
If the driver continues to keep their hands 
off of the steering wheel, a buzzer sounds 
and a warning message and the symbol 
shown in the illustrat ion are displayed on 
the multi-information display. This warning 
also operates in the same way when the 
driver continuously operates the steering 
wheel only a small amount. Always keep 
your hands on the steering wheel when 
using this system, rega rdless of warnings.
Depending on the vehicle and road condi-
tions, the warning may not operate.
■Vehicle sway warning function
When the system determines that the vehi-
cle is swaying while the vehicle sway warn-
ing function is operating, a buzzer sounds 
and a warning message urging the driver to 
rest and the symbol shown in the illustration 
are simultaneously displayed on the multi-
information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.
■White (yellow) lines ar e only on one side 
of road
The LKA system will not operate for the 
side on which white (yellow) lines could not 
be recognized.
■Conditions in whic h functions may not 
operate properly
In the following situations, the camera sen-
sor may not detect white (yellow) lines and 
various functions may not operate normally.
●There are shadows on the road that run 
parallel with, or cover, the white (yellow) 
lines.
●The vehicle is driven in an area without 
white (yellow) lines, su ch as in front of a 
tollgate or checkpoint,  or at an intersec-
tion, etc.
●The white (yellow) lines are cracked, 
“Botts’ dots”, “Raised pavement marker” 
or stones are present.
●The white (yellow) lines cannot be seen 
or are difficult to see due to sand, etc.
●The vehicle is driven on a road surface 
that is wet due to rain, puddles, etc.
●The traffic lines are yellow (which may be 
more difficult to reco gnize than lines that 
are white).
●The white (yellow) lines cross over a curb, 
etc.
●The vehicle is driven on a bright surface, 
such as concrete.
●The vehicle is driven on a surface that is 
bright due to reflected light, etc.
●The vehicle is driven in an area where the 
brightness changes sudd enly, such as at 
the entrances and exits of tunnels, etc.
●Light from the headlights of an oncoming 
vehicle, the sun, etc. enters the camera.
●The vehicle is driven where the road 
diverges, merges, etc.
●The vehicle is driven on a slope.
●The vehicle is driven  on a road which tilts 
left or right, or a winding road.
●The vehicle is driven on an unpaved or 
rough road.
●The vehicle is driven around a sharp 
curve.
●The traffic lane is excessively narrow or 
wide.
●The vehicle is extremely tilted due to car-
rying heavy luggage or having improper 
tire pressure.
●The distance to the preceding vehicle is 
extremely short.
●The vehicle is moving up and down a 
large amount due to road conditions  

2856-2. Maintenance
6
Maintenance and care
Radiator/con-
denser
The radiator and con-
denser should be free 
from foreign objects. 
( P.297)
Washer fluid
Is there sufficient 
washer fluid? 
( P.298)
Trunk
ItemsCheck points
12-volt battery
Check the battery fluid 
level and connections. 
( P.299)
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 

3246-3. 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. 

3517-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause 
of the problem:
The electronic key may not be func-
tioning properly. ( P.356)
 There may not be sufficient fuel in 
the vehicle’s tank.
Refuel the vehicle. ( P.182)
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures. 
( P.146)
 There may be a malfunction in the 
engine immobilizer system. 
( P.69)
 There may be a malfunction in the 
shift control system.
* ( P.149)
 There may be a malfunction in the 
steering lock system.
*: It may not be possible to shift the shift 
position other than P.
One of the following may be the cause 
of the problem:
 The 12-volt battery may be dis-
charged. ( P.357)
 The 12-volt battery terminal con-
nections may be lo ose or corroded. 
( P.301)
The engine starting system may be 
malfunctioning due to an electrical 
problem such as electronic key battery 
depletion or a blown fuse. However, an 
interim measure is available to start the 
engine.
One of the following may be the cause 
of the problem:
 One or both of the 12-volt battery 
terminals may be disconnected. 
( P.301)
 The 12-volt battery may be dis-
charged. ( P.357)
 There may be a malfunction in the 
steering lock system.
If the engine will not start 
(LC500)
If the engine will not start even 
though correct starting procedures 
are being followed ( P.146), con-
sider each of the following points:
The engine will not start even 
though the starter motor oper-
ates normally.
The starter motor turns over 
slowly, the interior lights and 
headlights are dim, or the horn 
does not sound or sounds at a low 
volume.
The starter motor does not turn 
over
The starter motor does not turn 
over, the interior lights and head-
lights do not turn on, or the horn 
does not sound.