
1774-5. Using the driving support systems
4
Driving
WARNING
●When tires of a size other than speci-
fied are installed.
●Vehicle is driven in traffic lanes other 
than that highways and freeways.
●During emergency towing
■Preventing LTA 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.
■Conditions in which functions may 
not operate properly
In the following situations, the functions 
may not operate properly and the vehicle 
may depart from its lane. Drive safely by 
always paying careful attention to your 
surroundings and operate the steering 
wheel to correct the path of the vehicle 
without relying solely on the functions.
●When the follow-up cruising display is 
displayed ( P.181) and the preceding 
vehicle changes lanes. (Your vehicle 
may follow the preceding vehicle and 
also change lanes.)
●When the follow-up cruising display is 
displayed ( P.181) and the preceding 
vehicle is swaying. (Your vehicle may 
sway accordingly and depart from the 
lane.)
●When the follow-up cruising display is 
displayed ( P.181) and the preceding 
vehicle departs from its lane. (Your 
vehicle may follow the preceding vehi-
cle and depart from the lane.)
●When the follow-up cruising display is 
displayed ( P.181) and the preceding 
vehicle is being driven extremely close 
to the left/right lane line. (Your vehicle 
may follow the preceding vehicle and 
depart from the lane.)
●Vehicle is being driven around a sharp 
curve.
●Objects or patterns that could be mis-
taken for white (yellow) lines are pres-
ent on the side of the road (guardrails, 
curbs, reflective  poles, etc.). 

2174-5. Using the driving support systems
4
Driving
• Pedestrians who are bending forward or squatting
• Pedestrians who are lying down
• Pedestrians who are running
• Pedestrians who suddenly enter the  detection area
• People riding a bicycle, skateboard, or 
other light vehicle
• Pedestrians wearing oversized clothing  such as a rain coat, long skirt, etc., making 
their silhouette obscure
• Pedestrians whose body is partially hid- den by an object, such as a cart or 
umbrella
• Pedestrians which are obscured by dark- ness, such as at night
●In some situations, such as the following, 
pedestrians may not be detected by the 
rear camera detection function, prevent-
ing the function from operating properly:
• When backing up in inclement weather  (rain, snow, fog, etc.)
• When the rear camera is obscured (dirt,  snow, ice, etc. are attached) or scratched
• When a very bright light, such as the sun, 
or the headlights of  another vehicle, 
shines directly into the rear camera
• When backing up in a place where the 
surrounding brightness changes sud-
denly, such as at the  entrance or exit of a 
garage or underground parking lot
• When backing up in a dim environment  such as during dusk or in an underground 
parking lot
●Even though there are no pedestrians in 
the detection area, some  objects, such as 
the following, may be detected, possibly 
causing the rear camera detection func-
tion to operate.
• Three dimensional objects, such as a  pole, traffic cone, fence, or parked vehi-
cle
• Moving objects, such as a car or motor- cycle
• Objects moving toward your vehicle 
when backing up, such as flags or pud-
dles (or airborne matter, such as smoke, 
steam, rain, or snow)
• Cobblestone or gravel roads, tram rails,  road repairs, white lines, pedestrian 
crossings or fallen leaves on the road
• Metal covers (gratings), such as those  used for drainage ditches • Objects reflected in a puddle or on a wet 
road surface
• The roadside or bumps on the road 
•Shadows on the road
●In some situations, such as the following, 
the rear camera detection function may 
operate even though there are no pedes-
trians in the detection area.
• When backing up toward the roadside or 
a bump on the road
• If the vehicle is signif icantly tilted, such as 
when carrying a heavy load
• When backing up toward an  incline/decline
• If the suspension has been modified or 
tires of a size othe r than specified are 
installed
• If the rear of the vehicle is raised or low-
ered due to the carried load
• If an electronic component, such as a  backlit license plate is installed near the 
rear camera
• If a bumper protector, such as an addi- tional trim strip, is installed to the rear 
bumper
• If the orientation of the rear camera has  been changed due to a collision or other 
impact, or removal and installation
• If a towing eyelet is in stalled to the rear of 
the vehicle
• When water is flowing over the rear cam-
era lens
• When the rear camera  is obscured (dirt, 
snow, ice, etc. are at tached) or scratched
• If there is a flashing light in the detection  area, such as the emergency flashers of 
another vehicle
●Situations in which the rear camera 
detection function may be difficult to 
notice
• The buzzer may be difficult to hear if the  surrounding area is noisy, the volume of 
the audio system volume is high, the air 
conditioning system is being used, etc.
• If the temperature in the cabin is 
extremely high or low, the Center Display 
may not operate correctly. 

2354-5. Using the driving support systems
4
Driving
garage or underground parking lot
• When backing up in a dim environment  such as during dusk or in an underground 
parking lot
●Even though there are no pedestrians in 
the detection area, some  objects, such as 
the following, may be detected, possibly 
causing the Parking Support Brake func-
tion (rear pedestri ans) to operate.
• Three dimensional objects, such as a  pole, traffic cone, fence, or parked vehi-
cle
• Moving objects, such as a car or motor- cycle
• Objects moving toward your vehicle 
when backing up, such as flags or pud-
dles (or airborne matter, such as smoke, 
steam, rain, or snow)
• Cobblestone or gravel roads, tram rails,  road repairs, white lines, pedestrian 
crossings or fallen leaves on the road
• Metal covers (gratings), such as those 
used for drainage ditches
• Objects reflected in a puddle or on a wet  road surface
• The roadside or bumps on the road 
•Shadows on the road
●In some situations, such as the following, 
the Parking Support Brake function (rear 
pedestrians) may operate even though 
there are no pedestrians in the detection 
area.
• When backing up toward the roadside or 
a bump on the road
• If the vehicle is significantly tilted, such as  when carrying a heavy load
• When backing up toward an  incline/decline
• If the suspension has been modified or 
tires of a size other than specified are 
installed
• If the rear of the vehicle is raised or low-
ered due to the carried load
• If an electronic component, such as a  backlit license  plate or rear fog light, is 
installed near the rear camera
• If a bumper protector, such as an addi- tional trim strip, is installed to the rear 
bumper
• If the orientation of the rear camera has  been changed due to a collision or other 
impact, or remova l and installation
• If a towing eyelet is installed to the rear of  the vehicle
• When water is flowing over the rear cam- era lens
• When the rear camera  is obscured (dirt, 
snow, ice, etc. are at tached) or scratched
• If there is a flashing light in the detection  area, such as the emergency flashers of 
another vehicle 

3026-1. Maintenance and care
WARNING
■Precaution regarding the rear 
bumper with Blind Spot Monitor (if 
equipped)
If the paint of the rear bumper is chipped 
or scratched, the  system may malfunc-
tion. If this occurs, consult your Lexus 
dealer.
NOTICE
■To prevent paint deterioration and 
corrosion on the body and compo-
nents (aluminum wheels etc.)
●Wash the vehicle immediately in the 
following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar, pollen or tree sap is present  on the paint surface
• If dead insects, insect droppings or  bird droppings are present on the 
paint surface
• After driving in an area contaminated  with soot, oily smoke, mine dust, iron 
powder or chemical substances
• If the vehicle becomes heavily soiled  with dust or mud
• If liquids such as benzene and gasoline  are spilled on the paint surface
●If the paint is chip ped or scratched, 
have it repaired immediately.
●To prevent the wheels from corroding, 
remove any dirt and store in a place 
with low humidity when storing the 
wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic 
substances or scrub with a hard brush. 
This may damage the surfaces of the 
lights.
●Do not apply wax to the surfaces of the 
lights.
Wax may cause damage to the lenses.
■When using an automatic car wash 
(vehicles with rain-sensing windshield 
wipers)
Set the wiper switch to the off position.
If the wiper switch is in “AUTO”, the wip-
ers may operate and the wiper blades 
may be damaged.
■When using a high-pressure car wash
●When washing the vehicle, do not let 
water of the high-p ressure washer hit 
directly or the vicinity of the camera. 
Due to the shock from the high-pres-
sure water, it is possible the device may 
not operate as normal.
●Do not bring the nozzle tip close to 
boots (rubber or resin manufactured 
cover), connectors or the following 
parts. The parts may be damaged if 
they come into contact with high-pres-
sure water.
• Traction related parts
• Steering parts
• Suspension parts
• Brake parts
●Keep the cleaning nozzle at least 11.9 
in. (30 cm) away from the vehicle 
body. Otherwise resin section, such as 
molding and bumpers, may be 
deformed and damaged. 
Also, do not continuously hold the 
nozzle in the same place.
●Do not wash the underside of the vehi-
cle using a high pressure car washer.