2017 LEXUS RX200T brake

3974-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Re-enabling the Rear Crossing Traffic Auto Brake function
To re-enable the Rear Crossing Traffic Auto Brake function when it is disabled during
operation of the Rear Crossing Traffic Auto Brake function, either enable the system
again ( P. 383), or turn the engine switch o ff and then back to IGNITION ON mode.
Additionally, if there is no longer a vehicle ap proaching from the right or left at the rear of
the vehicle, or if the traveling direction of the vehicle changes (such as changing from
moving forward to backing up or from backing up to moving forward), the system will be
re-enabled automatically.
■Conditions under which the Rear Crossing Traffic Auto Brake function will not detect a
vehicle
The Rear Crossing Traffic Auto Brake function is not designed to detect the following
types of vehicles and/or objects.
●Vehicles approaching from directly behind
●Vehicles backing up in a parking space next to your vehicle
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
*
: Depending on the conditions, detection of a vehicle and/or object may occur.
■RCTA function buzzer
Regardless of whether the RCTA function is enabled or not ( P. 357), if the Rear Cross-
ing Traffic Auto Brake function is enabled an d brake control is performed, a buzzer will
sound to notify the driver.
●Vehicles that the sensors cannot detect due to
obstructions
●Vehicles which suddenly accelerate or
decelerate near your vehicle

3984-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■Situations in which the system may operate even though there is no possibility of a colli-
sion
In some situations such as the following, th e Rear Crossing Traffic Auto Brake function
may operate even though there is no possibility of a collision.
• When the parking space faces a street and vehicles are being driven on the street
• When a detected vehicle turns while approaching the vehicle
• When a vehicle passes by the side of your vehicle
• When the distance between your vehicle and metal objects, such as a guardrail, wall,
sign, or parked vehicle, which may reflect
electrical waves toward the rear of the vehi-
cle, is short

3994-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Situations in which the Rear Crossing Traffic Auto Brake function may not operate properly
In some situations such as the following , this function may not operate properly.
●Objects and vehicles which the radar sensors are not designed to detect
• Stationary objects • Vehicles which are moving away from your vehicle
• Pedestrians, motorcycles, bicycles, etc.*• Objects which are extremely close to a radar sensor • Vehicles which are approaching from the right or left at the rear of the vehicle at a
traveling speed of less than approximately 8 km/h (5 mph) • Vehicles which are approaching from the right or left at the rear of the vehicle at a traveling speed of more than a pproximately 24 km/h (15 mph)
*: Depending on conditions, detection of a vehicle and/or object may occur.
●Situations in which the radar sensors may not be able to detect an object
• When a sensor or the area around a sensor is extremely hot or cold • If the rear bumper is covered with ice, snow, dirt, etc.
• If heavy rain or water strikes the vehicle • When the detection area of a radar sensor is obstructed by an adjacent vehicle• If the vehicle is significantly tilted
• If towing eyelets are installed • If the suspension has been modified or ti res of a size other than specified are installed
• If the front of the vehicle is raised or lowered due to the carried load • If a sticker or an electronic component, such as a backlit license plate (especially flu-orescent type), fog lights, a fender pole or wireless antenna is installed near a radar
sensor • If the orientation of a radar sensor has been changed due to a collision or other
impact or removal and installation • When multiple vehicles are approaching wi th only a small gap between each vehicle • When a vehicle is approaching at high speed
●Situations in which the radar sensor may not detect a vehicle
• When a vehicle approaches from the right or left at the rear of the vehicle while youare turning while backing up
• When turning while backing up
• When backing out of a shallow angle park-
ing spot

4154-5. Using the driving support systems
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Driving
RX350/RX200t_EE_OM48F32E
WARNING
■When using the Lexus parking assist monitor system
The parking assist monitor is a supplemental device intended to assist the driver when backing up. When backing up, be sure to check visually behind and all around the vehi-
cle before proceeding.
Observe the following precautions to avoid an accident that could result in death or serious injuries.
●Never depend on the parking assist monitor entirely when backing up. The imageand the position of the guide lines displayed on the screen may differ from the actualstate.
Use caution, just as you would when backing up any vehicle.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●If you seem likely to hit nearby vehicles , obstacles, people or mount the shoulder,
depress the brake pedal to stop the vehicle.
●The instructions given are only guidelines. When and how much to turn the steering wheel will vary according to traffic condi-
tions, road surface conditions, vehicle condition, etc. when parking. It is necessary to be fully aware of this before using the parking assist system.
●When parking, be sure to check that th e parking space will accommodate your vehi-
cle before maneuvering into it.
●Do not use the parking assist monitor in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or emergency tires • When the back door is not closed completely• On roads that are not flat or straight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. Theimage could distort when the vehicle is moving, or you may become unable to see the
image on the screen. Be sure to check direct visually and with the mirrors all around the vehicle before proceeding.
●If the tire sizes are changed, the position of the guide lines displayed on the screen
may change.
●The camera uses a special lens. The distances between objects and pedestrians that appear in the image displayed on the screen will differ from the actual distances.
( P. 409)
●Estimated course line display mode: If the steering wheel is straight and the vehicle width guide lines and the estimated course lin es are not in alignment, have the vehicle
inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

4214-5. Using the driving support systems
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Driving
RX350/RX200t_EE_OM48F32E
Press the switch.
The torque of the engine is distributed to the rear wheels to the maximum extent pos-
sible in accordance with driving conditions.
Pressing the switch again cancels all-wheel drive lock mode and returns the Dynamic Torque Control AWD system to normal mode. ( P. 423)
■All-wheel drive lock mode can be operated when
The engine switch is in IGNITION ON mode.
■Automatic release for the all-wheel drive lock mode
●All-wheel drive lock mode is canceled when the brakes are applied to ensure the ABS and VSC systems operate effectively.
●All-wheel drive lock mode is canceled when the vehicle speed exceeds 40 km/h(25 mph).
All-wheel drive lock switch (AWD models)
All-wheel drive lock mode can be used when a large amount of drive power
needs to be applied to all the wheels, such as when the vehicle gets stuck in
mud and you need to free it.
RX350RX200t

4224-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the
brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces.
◆VSC + (Vehicle Stability Control +)
Provides cooperative control of the ABS, TRC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road sur-
faces by controlling steering performance.
◆Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake pressure
for individual wheels and reducing driving torque when trailer sway is
detected.
◆TRC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when starting on an
uphill
Driving assist systems
To help enhance driving safety and performance, the following systems oper-
ate automatically in response to various driving situations. Be aware, however,
that these systems are suppl ementary and should not be relied upon too heav-
ily when operating the vehicle.

4234-5. Using the driving support systems
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Driving
RX350/RX200t_EE_OM48F32E
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn the
steering wheel
◆Dynamic Torque Control AWD system (AWD models)
Automatically switches from front-wheel drive to all-wheel drive (AWD)
according to the driving conditions, helping to ensure reliable handling and
stability. Examples of conditions where the system will switch to AWD are
when cornering, going uphill, starting off or accelerating, and when the road
surface is slippery due to snow, rain, etc.
◆Adaptive Variable Suspension System (if equipped)
Controls the damping force of the shock absorber of each wheel according to
the road and driving conditions, helping achieve a comfortable ride, excellent
driveability and a high level of stability.
If SPORT S+ mode is selected using the driving mode select switch, the
damping force will become more suitable for sporty driving. ( P. 418)
◆VDIM (Vehicle Dynamics Integrated Management) (if equipped)
Provides integrated control of the ABS, brake assist, TRC, VSC, hill-start
assist control and EPS systems
Helps to maintain vehicle stability when swerving on slippery road surfaces by
controlling the brakes and engine output
◆Emergency brake signal
When the brakes are applie d suddenly, the stop lights automatically flash to
alert the vehicle behind.

4254-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Turning off both TRC and VSC systems
To turn the TRC and VSC systems off, pr ess and hold for more than 3 seconds
while the vehicle is stopped.
The VSC OFF indicator light will come on an d the “Traction Control Turned Off” will be
shown on the multi-information display.
*
Press again to turn the systems back on.
*: On vehicles with PCS (Pre-Crash Safety system), pre-crash brake assist and pre-
crash braking will also be disabled. ( P. 312)
■When the message is displayed on the mult i-information display showing that TRC has
been disabled even if the VSC OFF switch has not been pressed
TRC cannot be operated. Contact any authoriz ed Lexus dealer or repairer, or another
duly qualified and equipped professional.
■Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will operate:
●The shift lever is in a position other than P or N (when starting off forward/backward on
an upward incline).
●The vehicle is stopped
●The accelerator pedal is not depressed
●The parking brake is not engaged
■Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
●The shift lever is shifted to P or N
●The accelerator pedal is depressed
●The parking brake is engaged
●Approximately 2 seconds elapse after the brake pedal is released
■Sounds and vibrations caused by the ABS, brake assist, TRC, VSC and hill-start assist
control systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is st arted or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these sys-
tems.
●Any of the following conditions may occu r when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slig htly after the ABS is activated.
• The brake pedal may move down slig htly after the ABS is activated.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.