2017 LEXUS RC200T brake sensor

3584-5. Using the driving support systems
RC200t_RC F_EE(OM24728E)
■The pre-crash safety system is operational when
The pre-crash safety system is enable d and the following conditions are met:
●Pre-crash warning:
• Vehicle speed is greater than about 15 km/h (10 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 15 km/h (10 mph).
●Pre-crash brake assist:
• The VSC system is not disabled. • Vehicle speed is greater than about 30 km/h (19 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 30 km/h (19 mph).• The brake pedal is depressed.
●Pre-crash braking:
• The VSC system is not disabled.
• Vehicle speed is greater than about 15 km/h (10 mph). • The speed at which your vehicle is approaching the obstacle or the vehicle runningahead of you is greater than about 15 km/h (10 mph).
●Suspension control:
• Vehicle speed is greater than about 5 km/h (4 mph).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 30 km/h (19 mph).
■Conditions that may trigger the system even if there is no danger of a collision
In any of the following situations where the frontal area of the radar sensor is interrupted, the radar sensor may detect possibility of a frontal collision and the system may be acti- vated.
●When passing by an oncoming vehicle in a curve or a turn to the right or the left
●When rapidly approaching an obstacle ahead (e.g. preceding vehicle, toll gate barrier, etc.)
●When there is a structural object (billboard, low ceiling, fluorescent light, etc.) above the uphill road ahead
●When driving on a narrow road or throug h under a low overhead structure (bridge,
tunnel, fly-under, etc.)
●When driving on an uneven road surface
●When there is a metal object, bump, or protrusion on the road surface
●When vehicle’s front part is raised or lowered depending on loading conditions
●When the direction of radar sensor is misaligned by strong impact applied on an area
around the radar sensor, etc.
●When there is an obstacle (guard rail, etc.) by the roadside at the entrance to a curve
●When the front of your vehicle is pointing upwards (caused by putting a heavy load in
the trunk etc.)
When the system is activated in the situations described above, there is also a possibility that the brakes may be applied with a force greater than normal.

3624-5. Using the driving support systems
RC200t_RC F_EE(OM24728E)
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 in stead of normal braking operations under any circumstances. This system will not pr event collisions or lessen damage or inju- ries in all cases. Do not overly rely on this system. Failure to do so may cause an acci-
dent, resulting in death or serious injury.
●This system has been designed to help avoid and reduce the impact of collisions. However, the system operates differently depending on the situation ( P. 358,
358). As a result, the same level of perf ormance may not be expected in all cases. Also, the pre-crash safety brakes may not oper ate if the driver is depressing the brake pedal or turning the steering wheel, as th e system will determine such conditions as
collision avoidance operations.
●As the pre-crash safety system is designed to assist the driver in safe driving, it may operate under sporty driving conditions, which may cause an accident. For this rea-
son under sporty driving conditions, it is recommended that this system be disabled by using the PCS OFF switch.
■Handling the radar sensor
Observe the following to ensure the pre-crash safety system can function effectively. Otherwise, the system may not function correctly and could result in an accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or damage them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off po sition, the system may become inaccurate or malfunction. If the sensor or surrounding area is subject to a strong impact, alwayshave the area inspected and adjusted by an y authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.
●If the radar sensor needs to be replaced, contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

6028-2. Steps to take in an emergency
RC200t_RC F_EE(OM24728E)
RC200t only
Indicates an engine malfunction A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified andequipped professional.
Indicates a malfunction in:• The SRS airbag system; or
• The seat belt pretensioner system A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Indicates a malfunction in:•The ABS; or
• The brake assist system A buzzer also sounds. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Indicates that the engine coolant temperature is too highA buzzer also sounds. P. 659
(If equipped)
Indicates that the radar sensor is dirty or covered with ice
A buzzer also sounds.  Clean the sensor.
Warning messageDetails/Actions

6118-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.  Turn the high beam on and press the Automatic High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)system was turned off, the pre-crash brake system oper-ation is stopped
Operation of the pre-crash brake assist is also stopped. Turn the VSC on. (P. 352)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is not currently functional because the grille cover or the sen-
sor is dirty  Check the grille cover and the sensor and clean
them if they are dirty.
Indicates that operation of large electricity consuming
systems such as the air conditioning system are sus- pended Stop using unnecessary electric components to
reduce electricity consumpt ion. Wait a while until the electric power supply is restored.
Warning messageDetails/Actions
(Flashes)

6328-2. Steps to take in an emergency
RC200t_RC F_EE(OM24728E)
WARNING
■When using the spare tire
●Remember that the spare tire provided is specifically designed for use with your vehi- cle. Do not use your spare tire on another vehicle.
●Do not use more than one spare tires simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steerin g, sudden braking and shifting operations
that cause sudden engine braking.
■When the spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
■Speed limit when using the spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a spare tire is installed on the vehicle.
The spare tire is not designed for driving at high speeds. Failure to observe this precau- tion may lead to an accident cau sing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage location to reduce the possibility of personal injury during a collision or sudden brak- ing.
NOTICE
■Driving with tire chains and the spare tire
Do not fit tire chains to the spare tire. Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans- mitter, contact any authorized Lexus dealer or repairer, or another duly qualified andequipped professional as the tire pressure warning valve and transmitter may be dam-
aged if not handled correctly.
• ABS & Brake assist
•VSC •TRC• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)• PCS (if equipped)
•EPS • Adaptive Variable Suspension System (if equipped)
• LDA (Lane departure alert)
(if equipped) • VDIM (Vehicle Dynamics IntegratedManagement)
• Tire pressure warning system • Lexus parking assist monitor (if equipped)
• Lexus parking assist-sensor (if equipped)• Navigation system (if equipped)

702What to do if... (Troubleshooting)
RC200t_RC F_EE(OM24728E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 227)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 250)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 593)
●The parking brake indicator is on
Is the parking brake released? ( P. 261)
Depending on the situation, other types of warning buzzer may also sound.
( P. 591, 597)

●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. ( P. 103)
Do one of the following to deactivate or stop the alarm:
• Unlock the doors or open the trunk using the entry function or wireless
remote control.
• Start the engine.
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th e horn sounds (if equipped)

715Alphabetical index
RC200t_RC F_EE(OM24728E)
Navigation system*
Odometer......................................... 118, 124
Oil
Differential oil .......................................678
Engine oil .................................................671
Opener
Hood ......................................................... 518
Trunk ..........................................................170
Outer foot lights .................................... 492
Outside rear view mirrors ................ 224
Adjusting and folding....................... 224
BSM (Blind Sport Monitor)..........364
Linked mirror function
when reversing................................ 225
Mirror position memory...................214
Outside rear view mirror
defoggers ..........................................484
Outside temperature ...................118, 124
Overheating ...........................................659
Paddle shift switches ................255, 256
Parking assist sensors......................... 320
Parking brake...........................................261
PCS
(Pre-Crash Safety system)............ 356
PCS OFF switch................................ 357
Warning light....................................... 592
Personal lights........................................ 494
Pollen removal mode.......................... 484
Pop-up display.............................. 136, 148
Pop Up Hood............................................ 62
Power outlet ............................................ 501
Power steering (Electric power
steering system)................................. 349
Warning light....................................... 592
Power windows ......................................227
Door lock linked window
operation.............................................229
Jam protection function ................. 228
Operation .............................................. 227
Window lock switch ......................... 227
Pre-Crash Safety system (PCS) .... 356
PCS OFF switch................................ 357
Warning light....................................... 592
N
O
P
*: For vehicles with a navigation or multimedia system, refer to the
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

719Alphabetical index
RC200t_RC F_EE(OM24728E)
Stop & start system ..............................285
Idling stop time....................................290
Replacing battery............................... 657
Stop lights
Emergency brake signal ............... 350
Replacing light bulbs........................ 577
Storage feature...................................... 495
Stuck
If the vehicle becomes stuck ........664
Sun shade ................................................. 232
Sun visors ................................................ 500
Switches
Active rear wing switch .................. 379
ASC (Active Sound Control)
switch.................................................... 262
Audio remote control
switches...............................................396
Automatic High Beam switch ..... 267
BSM (Blind spot monitor)
switch.................................................... 364
Cruise control switch ..........294, 298
Door lock switches ............................ 166
Driving mode select switch ..........345
Driving position memory
switches................................................. 214
Dynamic radar cruise control
switch....................................................298
Emergency flashers switch.......... 580
Engine switch ....................................... 247
Fog light switch..................................... 271
Heated steering wheel switch .... 490
Ignition switch ...................................... 247
LDA (Lane Departure
Alert) switch ...................................... 315
Lexus parking assist-sensor
switch ..................................................... 321
Light switch........................................... 264
Meter control switches..................... 140
Moon roof switches ........................... 231
Outside rear view mirror
switches ...............................................224
Paddle shift switches............ 255, 256
PCS OFF switch................................ 357
Power door lock switch................... 166
Power window switches................. 227
Rear window and outside rear
view mirror defoggers
switch ................................................... 484
Seat heater switches .......................... 491
Seat ventilator switches.................... 491
Snow mode switch ........................... 254
Stop & Start cancel switch............ 285
Talk switch............................................. 454
Telephone switches ......................... 454