
2614-4. Refueling
4
Driving
RX350_U_OM48E90U After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door. When you lock the doors, the fuel filler
door will lock also. ■
Fuel filler door lock condition
The fuel filler door may not be locked even wh en the vehicle’s doors are locked in the fol-
lowing conditions: ●
When operating the door lock button inside the vehicle ●
When the automatic door locking system is operated ( P. 1 2 7 )●
When the fuel filler door is closed after the vehicle’s doors are lockedClosing the fuel tank cap 1
2
WA R N I N G ■
When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing
so may cause a fire or other incident whic h may result in death or serious injury.

266 4-5. Using the driving support systems
RX350_U_OM48E90U WA R N I N G ■
To avoid malfunction of the camera sensor
Observe the following precautions.
Otherwise, the camera sensor may not operat e properly, possibly leading to an acci-
dent resulting in death or serious injury. ●
Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets, snow, etc.,
clear the windshield.
• If a glass coating agent is applied to the windshield, it will still be necessary to use
the windshield wipers to remove water drop lets from the area of the windshield in
front of the camera sensor.
• If the inner side of the windshield where th e camera sensor is installed is dirty, con-
tact your Lexus dealer.
●
If the part of the windshield in front of th e camera sensor is fogged up or covered with
condensation or ice, use the windshield defogger to remove the fog, condensation or
ice. ( P. 500)●
If water droplets cannot be properly remove d from the area of the windshield in front
of the camera sensor by the windshield wipers, replace the wiper insert or wiper
blade.
• To replace the wiper insert: P. 6 0 1
• If the 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 re placed, 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 windshield , do not allow glass cleaner to contact the
lens. Also, do not touch the lens.
If the lens is dirty or damage d, contact your Lexus dealer.●
Do not install an antenna or attach stickers
(including transparent stickers) or other items
to the area of the windshield in front of the
camera sensor (shaded area in the illustra-
tion).

2674-5. Using the driving support systems
4
Driving
RX350_U_OM48E90U WA R N I N G ●
Do not subject the camera sensor to a strong impact. ●
Do not change the installation position or di rection of the camera sensor or remove it.●
Do not disassemble the camera sensor. ●
Do not install an electronic de vice or device that emits strong electric waves near the
camera sensor. ●
Do not modify any components of the vehicle around the camera sensor (inside rear
view mirror, sun visors, etc.) or ceiling. ●
Do not attach any accessories that may obst ruct 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 sensor. ●
Do not modify the headlights or other lights.

274 4-5. Using the driving support systems
RX350_U_OM48E90U ■
Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on ( P. 9 6 ) o f t h e
multi-information display. The system is automatically enabled each time the engine switch is turned to IGNI-
TION ON mode.
If the system is disabled, the PCS
warning light will turn on and a mes-
sage will be displayed on the multi-
information display. ■
Changing the pre-col lision warning timing
The pre-collision warning timing can be changed on ( P. 9 6 ) o f t h e
multi-information display. The operation timing setting is retained when the engine switch is turned off.
Far The warning will begin to operate
earlier than with the default timing.
Middle This is the default setting.
Near The warning will begin to operate
later than with the default timing.Changing settings of the pre-collision system
1
2
3

2754-5. Using the driving support systems
4
Driving
RX350_U_OM48E90U ■
Operational conditions
Availability of the pedestrian detection function and pre-collision braking function
depend on the region in which the vehicle was sold.
Read the following for details:
Region A
(The pedestrian detection fu nction and pre-collision braking function are available)
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operationa l at the following speeds:●
Pre-collision warning:
• Vehicle speed is approximately 7 mph (1 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 7 and 50 mph [10 and 80 km/h].)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more. ●
Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (3 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 19 and 50 mph [30 and 80 km/h].)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more. ●
Pre-collision braking:
• Vehicle speed is approximately 7 mph (1 0 km/h) or more. (For detecting a pedes-
trian, vehicle speed is between approxim ately 7 and 50 mph [10 and 80 km/h].)
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations: ●
If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time ●
If the shift lever is in R ●
If VSC is disabled (only the pre-collision warning function will be operational) ●
If the PCS warning light is flashing or illuminated Regions Function availability
Region A The pedestrian detection function and pre-collision braking
function are available
Region B The pedestrian detection function is not available and the pre-
collision braking function is available
Region C The pedestrian detection function and pre-collision braking
function are not available

276 4-5. Using the driving support systems
RX350_U_OM48E90U
Region B
(The pedestrian detection fu nction is not available and the pre-collision braking func-
tion is available)
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operationa l at the following speeds:●
Pre-collision warning:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more. ●
Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (30 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more. ●
Pre-collision braking:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations: ●
If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time ●
If the shift lever is in R ●
If VSC is disabled (only the pre-collision warning function will be operational) ●
If the PCS warning light is flashing or illuminated
Region C
(The pedestrian detection function and pr e-collision braking function are not avail-
able)
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operationa l at the following speeds:●
Pre-collision warning:
• Vehicle speed is approximately 10 mph (15 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more. ●
Pre-collision brake assist:
• Vehicle speed is approximately 19 mph (30 km/h) or more.
• The relative speed between your vehicl e and the vehicle or pedestrian ahead is
approximately 19 mph (30 km/h) or more.
The system may not operate in the following situations: ●
If a battery terminal has be en disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time ●
If the shift lever is in R ●
If VSC is disabled (only the pre-collision warning function will be operational) ●
If the PCS warning light is flashing or illuminated

280 4-5. Using the driving support systems
RX350_U_OM48E90U ■
Situations in which the system may not operate properly ●
In some situations such as the following, a vehicle may not be de tected 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 bicycle
• When approaching the side of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If the sun or other light is shin ing 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, accelera-
tion or deceleration)
• When suddenly cutting behind a preceding vehicle
• When driving in inclement 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 surrounding 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• If a preceding vehicle has a low rear end,
such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance
• When a vehicle ahead is not directly in front
of your vehicle

282 4-5. Using the driving support systems
RX350_U_OM48E90U ■
If the PCS warning light flashes and a warnin g message is displayed on the multi-infor-
mation display
The pre-collision system may be temporarily unavailable or there may be a malfunction
in the system. ●
In the following situations, the warning light will turn off, the message will disappear and
the system will become operational when normal operating conditions return:
• When the radar sensor or camera sensor or the area around either sensor is hot,
such as in the sun
• When the radar sensor or camera sensor or the area around either sensor is cold,
such as in an extremely cold environment
• When the radar sensor or front grille embl em is dirty or covered with snow, etc.
• If the camera sensor is obst ructed, such as when the h ood is open or a sticker is
attached to the windshield near the camera sensor ●
If the PCS warning light continues to flash or the warning messag e does not disappear,
the system may be malfunctioning. Have the vehicle inspected by your Lexus dealer
immediately. ■
If VSC is disabled ●
If VSC is disabled ( P. 377), the pre-collision brake assist and pre-collision braking
functions are also disabled. ●
The PCS warning light will turn on and “VSC Turned Off Pre-Collision Brake System
Unavailable” will be displayed on the multi-information display.