2017 LEXUS RX200T warning

3014-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
◆Pre-crash warning
When the system determines that
the possibility of a frontal collision is
high, a buzzer will sound and a warn-
ing message will be displayed on the
multi-information display to urge the
driver to take evasive action.
◆Pre-crash brake assist
When the system determines that the possi bility of a frontal collision is high,
the system applies greater braking force in relation to how strongly the brake
pedal is depressed.
◆Pre-crash braking*3
When the system determines that the possi bility of a frontal collision is high,
the system warns the driver. If the system determines that the possibility of a
frontal collision is extremely high, the brakes are automatically applied to help
avoid the collision or reduce the collision speed.
*3: Depending on the region in which the vehi cle was sold, the pre-crash braking function
may not be available.
◆Suspension control (if equipped)
When the system determines that the possi bility of a frontal collision is high,
the Adaptive Variable Suspension System ( P. 423) will control the damping
force of the shock absorbers to help ma intain an appropriate vehicle posture.

3024-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
WARNING
■Limitations of the pre-crash safety system
●The driver is solely responsible for safe driving. Always drive safely, taking care to observe your surroundings.
Do not use the pre-crash safety system instead of normal braking operations under any circumstances. This system will not pr event collisions or lessen collision damage or injury in every situation. Do not overly rely on this system. Failure to do so may lead
to an accident, resulting in death or serious injury.
●Although this system is designed to help avoid a collision or help reduce the impact of the collision, its effectiveness may change according to various conditions, therefore
the system may not always be able to achieve the same level of performance. Read the following conditions carefully. Do not overly rely on this system and always drive carefully.
• Conditions under which the system may oper ate even if there is no possibility of a collision: P. 307 • Conditions under which the system may not operate properly: P. 310
●Do not attempt to test the operation of the pre-crash safety system yourself, as the system may not operate properly, possibly leading to an accident.
■Pre-crash braking*3
●When the pre-crash braking function is operating, a large amount of braking forcewill be applied.
●If the vehicle is stopped by the operation of the pre-crash braking function, the pre- crash braking function operation will be canceled after approximately 2 seconds. Depress the brake pedal as necessary.
●The pre-crash braking function may not operate if certain operations are performedby the driver. If the accelerator pedal is being depressed strongly or the steering wheel is being turned, the system may determine that the driver is taking evasive
action and possibly prevent the pre-crash braking function from operating.
●In some situations, while the pre-crash brakin g function is operating, operation of the function may be canceled if the accelerator pedal is depressed strongly or the steer-
ing wheel is turned and the system determines that the driver is taking evasive action.
●If the brake pedal is being depressed, the system may determine that the driver is tak- ing evasive action and possibly delay the operation timing of the pre-crash braking
function.
*3: Depending on the region in which the vehicle was sold, the pre-crash braking func-
tion may not be available.

3034-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
WARNING
■When to disable the pre-crash safety system
In the following situations, disable the syst em, as it may not operate properly, possibly leading to an accident resulting in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another vehicle
●When transporting the vehicle via truck, boat, train or similar means of transportation
●When the vehicle is raised on a lift with th e engine running and the tires are allowed to rotate freely
●When inspecting the vehicle using a drum tester such as a chassis dynamometer or
speedometer tester, or when using an on vehicle wheel balancer
●When a strong impact is applied to the fron t bumper or front grille, due to an accident or other reasons
●If the vehicle cannot be driven in a stable manner, such as when the vehicle has beenin an accident or is malfunctioning
●When the vehicle is driven in a sporty manner or off-road
●When the tires are not properly inflated
●When the tires are very worn
●When tires of a size other than specified are installed
●When tire chains are installed
●When a compact spare tire or an emergency tire puncture repair kit is used
●If equipment (snow plow, etc.) that may obstruct the radar sensor or camera sensor is
temporarily installed to the vehicle

3044-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■Enabling/disabling the pre-crash safety system
The pre-crash safety system can be enabled/disabled on ( P. 110) of the
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-crash warning timing
The pre-crash warning timing can be changed on (P. 110) of the 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-crash safety system
1
2
3

3054-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Operational conditions
Availability of the pedestrian detection func tion and pre-crash braking function depend on the region in which the vehicle was sold.
Read the following for details:
Region A (The pedestrian detection function and pre-crash braking function are available)
The pre-crash safety system is enabled and th e system determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 10 and 180 km/h (7 and 110 mph). (For detecting a pedestrian, vehicle speed is between approximately 10 and 80 km/h [7and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph). (For detecting a pedestrian, vehicle speed is between approximately 30 and 80 km/h
[19 and 50 mph].) • The relative speed between your vehicle and the vehicle or pedestrian ahead isapproximately 30 km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 10 and 180 km/h (7 and 110 mph). (For
detecting a pedestrian, vehicle speed is between approximately 10 and 80 km/h [7 and 50 mph].)• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 10 km/h (7 mph) or more. The system may not operate in the following situations:
●If a battery terminal has been 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-cras h warning function will be operational)
●If the PCS warning light is flashing or illuminated
RegionsFunction availability
Region AThe pedestrian detection function and pre-crash braking func- tion are available
Region BThe pedestrian detection function is not available and the pre-crash braking function is available
Region CThe pedestrian detection function and pre-crash braking func-
tion are not available

3064-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
Region B (The pedestrian detection function is not available and the pre-crash braking functionis available)
The pre-crash safety system is enabled and th e system determines that the possibility of a frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph). • The relative speed between your vehicle and the vehicle ahead is approximately 10
km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph). • The relative speed between your vehicle and the vehicle ahead is approximately 30km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately 10 km/h (7 mph) or more.The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle hasnot been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-cras h warning function will be operational)
●If the PCS warning light is flashing or illuminated
Region C
(The pedestrian detection function and pre-crash braking function are not available)
The pre-crash safety system is enabled and th e system determines that the possibility of a
frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110 mph). • The relative speed between your vehicle and the vehicle ahead is approximately 10km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110 mph).
• The relative speed between your vehicle and the vehicle ahead is approximately 30 km/h (19 mph) or more.The system may not operate in the following situations:
●If a battery terminal has been disconnected and reconnected and then the vehicle hasnot been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-cras h warning function will be operational)
●If the PCS warning light is flashing or illuminated

3124-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
●Some pedestrians such as the following may not be detected by the radar sensor and
camera sensor, preventing the system from operating properly*4:
• Pedestrians shorter than approximately 1 m (3 .2 ft.) or taller than approximately 2 m (6.5 ft.)
• Pedestrians wearing oversized clothing (a rain coat, long skirt, etc.), making their sil- houette obscure• Pedestrians who are carrying large baggage, holding an umbrella, etc., hiding part
of their body • Pedestrians who are bending forward or squatting• Pedestrians who are pushing a stroller , wheelchair, bicycle or other vehicle
• Groups of pedestrians which are close together • Pedestrians who are wearing white and look extremely bright• Pedestrians in the dark, such as at night or while in a tunnel
• Pedestrians whose clothing appears to be nearly the same color or brightness as their surroundings• Pedestrians near walls, fences, guardrails, or large objects
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.) on the road • Pedestrians who are walking fast• Pedestrians who are changing speed abruptly
• Pedestrians running out from behi nd a vehicle or a large object • Pedestrians who are extremely close to the side of the vehicle (outside rear viewmirror, etc.)
*4: Depending on the region in which the vehicle was sold, the pedestrian detection
function may not be available.
■If the PCS warning light flashes and a warning message is displayed on the multi-infor- mation display
The pre-crash safety system may be temporar ily unavailable or there may be a malfunc-
tion 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. • When the part of the windshield in front of the camera sensor is fogged up or cov-
ered with condensation or ice (Defogging the windshield: P. 542) • If the camera sensor is obstructed, such as when the hood is open or a sticker isattached to the windshield near the camera sensor
●If the PCS warning light continues to flash or the warning message does not disappear,the system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qua lified and equipped professional immediately.
■If VSC is disabled
●If VSC is disabled (P. 425), the pre-crash brake assist and pre-crash braking func-
tions are also disabled.
●The PCS warning light will tu rn on and “VSC Turned Off Pre-Crash Brake System Unavailable” will be displayed on the multi-information display.

3144-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
◆Lane departure alert function
When the system determines that
the vehicle might depart from its
lane, a warning is displayed on the
multi-information display, and either
the warning buzzer sounds or the
steering wheel vibrates to alert the
driver.
When the warning buzzer sounds or the steering wheel vibrates, checkthe surrounding road situation and
carefully operate the steering wheel to move the vehicle back to the cen-ter within the white (yellow) lines.
Functions included in LKA system