engine LEXUS RX200T 2017 Owners Manual

3484-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
Press the Stop & Start cancel switch to
disable the Stop & Start system.
The Stop & Start cancel indicator will
come on. Pressing the switch again will enable theStop & Start system and the Stop & Start
cancel indicator will turn off.
■Automatic reactivation of the Stop & Start system
Even if the Stop & Start system is disabled by the Stop & Start cancel switch, it
will be automatically enabled when the engine switch is turned off, and then to
the engine started.
■If the Stop & Start cancel switch is pressed
●When the engine is stopped by the St op & Start system, pressing the Stop
& Start cancel switch will restart the engine.
●With the Stop & Start system disabl ed, pressing the Stop & Start cancel
switch will enable the system but no t stop the engine. From the next time
the vehicle is stopped (after the Stop & Start system has been enabled), the
engine will be stopped.
If the engine is stopped by the Stop & Start system when the vehicle is on an
incline, brake force is temporarily maintained to prevent rolling backwards until
the engine is restarted and drive force is generated. When drive force is gener-
ated, the maintained brake force is automatically canceled.
●This function operates on flat surfaces as well as steep inclines.
●Sound may be generated from the brak es, but this is not a malfunction.
●Brake pedal response may change and vibration may occur, but these are not
malfunctions.
Disabling the Stop & Start system
Hill-start assist control

3494-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Operating conditions
●The Stop & Start system is operational when all of the following conditions are met:
• The brake pedal is being depressed firmly. (Except when the vehicle comes to a controlled stop while driving with the dyna mic radar cruise control with full-speed
range in vehicle-to-vehicle distance control mode [if equipped])
• The shift lever is in D or M.
• is off.
• The driver's seat belt is fastened.
• The engine is adequately warmed up.
• The driver's door is closed.
• The accelerator pedal is not being depressed.
• The outside temperature is -5°C (23°F) or higher.
• The hood is closed.
●In the following situations the engine may not be stopped by the Stop & Start system.
This is not a malfunction of the Stop & Start system.
• The air conditioning system is being used when the ambient temperature is high or
low.
• The battery is not sufficiently charged, such as if the vehicle has been parked for a long time and the battery charge has decreased, the electric load is large, the bat-
tery temperature is excessively low or the battery has deteriorated, or is undergoing
a periodic recharge.
• The brake booster vacuum is low.
• The vehicle is stoppe d on a steep incline.
• The steering wheel is being operated.
• Due to traffic or other circumstances the vehicle is being stopped repeatedly.
• The vehicle is being driven in a high altitude area.
• Engine coolant temperature or transmissi on fluid temperature is extremely low or
high.
• The battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and reconnected.
• For a while after the battery replacement.
●In the following situations, the engine will re start automatically if the engine is stopped
by the Stop & Start system. (To enable stoppi ng of the engine by the Stop & Start sys-
tem, drive the vehicle.)
• The air conditioning system is turned on.
• is turned on.
• The steering wheel is operated.
• The shift lever is shifted to a position other than D or M.
• The driver's seat belt is unfastened.
• The driver's door is opened.
• The accelerator pedal is depressed.
• The Stop & Start cancel switch is pressed.
• The vehicle starts to roll on an incline.

3504-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
●In the following situations, the engine may restart automatically if the engine is stopped
by the Stop & Start system. (To enable stoppi ng of the engine by the Stop & Start sys-
tem, drive the vehicle.)
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.
■Hood
●If the hood is opened while the engine is stopped by the Stop & Start system, the engine
will stall and will not be able to be restarte d by the automatic engine start function. In
this case, restart the engine using the normal engine starting procedure. (P. 246)
●If the hood is closed after the engine is st arted with the hood open, the Stop & Start sys-
tem will not operate. Close the hood, turn the engine switch off, wait 30 seconds or
more, and then start the engine.
■When to use the Stop & Start system
●When the system cannot operate, is cancele d, or is malfunctioning, warning messages
and a warning buzzer are used to inform the driver. ( P. 352)
●If the engine switch is pressed when the en gine is stopped by the Stop & Start system,
the engine will stall and will not be able to be restarted by the automatic engine start
function. In this case, restart the engine using the normal engine starting procedure.
(  P. 246)
●When the engine is restarted by the Stop & Start system, the power outlets may be
temporarily unusable, but this is not a malfunction.
●Installation and remova l of electrical components and wireless devices may affect the
Stop & Start system. Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional for details.
■If the windshield is fogged up while the engine is stopped by the Stop & Start system
Turn on. ( P. 542)
If the windshield fogs up frequently, press the Stop & Start cancel switch to disable the
system.
■If an odor comes from the air conditioning system while the engine is stopped by the
Stop & Start system
Press the Stop & Start cancel switch to deactivate the Stop & Start system.

3514-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Air conditioning system while the engine is stopped by the Stop & Start system
●If the air conditioning system is being used in automatic mode, the fan speed may be reduced or the fan may be stopped while the engine is stopped by the Stop & Start sys-
tem in order to reduce changes in the cabin temperature.
●To ensure air conditioning system performanc e when the vehicle is stopped, disable the Stop & Start system by pressing the Stop & Start cancel switch.
■Changing the idling stop time with the air conditioning system on
The length of time the Stop & Start system will operate when the air conditioning system
is on can be changed on the ( P. 109) or (P. 110). (The length of time the Stop
& Start system will operate when the air condit ioning system is off cannot be changed.)
■The Stop & Start system protection function
●When an excessively loud sound is being projected by the audio system, the audio sys- tem may be automatically cut off in order to reduce battery consumption. If this occurs,
turn the engine switch off, wait for 3 seconds or longer and then turn it to ACCES- SORY mode or IGNITION ON mode to re-enable the audio system.
●The audio system may not be activated when the battery terminals are disconnected
and then reconnected. If this occurs, turn the engine switch off and then repeat the fol- lowing operation twice to activate the audio system normally.
• Turn the engine switch to IGNITION ON mode and then to OFF.
■Replacing the battery
 P. 717
■Displaying the Stop & Start system status
 P. 109

3524-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■Multi-information display messages
If the following situations, and a message may be displayed on the multi-information
display.
●When the engine cannot be stopped by the Stop & Start system
MessageDetails
“Depress Brake
Firmly to Activate”
The brake pedal is not depressed enough.
If the brake pedal is depressed further, the system
will operate.
“For Climate Control”
• The air conditioning system is being used when the ambient temperature is high or low.
If the difference between the set temperature and
cabin temperature is small, the system will be
enabled.
• is ON.
“Battery Charging”
• The battery charge amount may be low. Engine stop is temporarily prohibited to prioritize
charging of the battery, but if the engine is operated
for a short while, engine stop is allowed.
• A refresh charge may be occurring, such as when the battery is undergoing a periodic recharge, for a
while after the battery terminals have been discon-
nected and reconnected, for a while after the bat-
tery has been replaced, etc.
After a refresh charge of approximately 5 to 60 min-
utes completes, the system can be operated.
• If the message is displayed continuously (more than 60 minutes), the battery may be deteriorated. Con-
tact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional for
details.
“For Brake System”
• The vehicle is being driven in a high altitude area.
• The brake booster vacuum is low. When the brake booster vacuum reaches a prede-
termined level, the system will be enabled.
“Steering Wheel
Turned”
The steering wheel has been operated.
“Driver Seat Belt
Unbuckled”
The driver seat belt is not fastened.
“Stop & Start Unavail-
able”
• The Stop & Start system is temporarily disabled. Operate the engine for a short while.
• The engine may have been started with the hood open.
Close the hood, turn the engine switch off, wait for
30 seconds or more, and then start the engine.

3534-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
●When the engine automatically restarts while stopped by the Stop & Start system
■If “Stop & Start System Malfunction Visit Your Dealer” is displayed on the multi-infor-
mation display
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■If the Stop & Start cancel indicator continues to flash
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
“System Temperature
Low”
The battery may be cold. Operate the engine for a short while allows the sys-
tem to recover due to the temperature increase in
the engine compartment.
“System Temperature
High”
The battery may be extremely hot. If the engine compartment is allowed to cool suffi-
ciently, the system will recover.
“Non-Dedicated Bat-
tery”
A non-dedicated battery for the Stop & Start system
may have been installed. The Stop & Start system does not operate. Have the
vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped pro-
fessional.
MessageDetails
MessageDetails
“For Climate Control”
• The air conditioning system has been turned on or is being used.
• has been turned on.
“For Brake System”
The brake pedal has been depressed further or
pumped. The system will be enabled after the engine runs and
the brake booster vacuum reaches a predetermined
level.
“Battery Charging”
The battery charge may have become low. The engine is restarted to prioritize battery charging.
Operating the engine for a short while allows the
system to recover.
“Steering Wheel
Turned”
The steering wheel was operated.
“Driver Seat Belt
Unbuckled”
The driver seat belt has been unfastened.

3544-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
WARNING
■When the Stop & Start system is operating
●Depress the brake pedal and apply the parking brake when necessary while the engine is stopped by the Stop & Start system (while the Stop & Start indicator is on).
(Except when the brake hold system is operating or when the vehicle comes to a con- trolled stop while driving with the dynamic radar cruise control with full-speed range in vehicle-to-vehicle distan ce control mode [if equipped])
●Do not allow anyone to leave the vehicle while the engine is stopped by the Stop & Start system (while the Stop & Start indicator is on).An accident may occur due to the automatic engine start function.
●Ensure that the engine is not stopped by the Stop & Start system while the vehicle is ina poorly ventilated area. The engine may restart due to the automatic engine startfunction, causing exhaust gases to collect and enter the vehicle, possibly resulting in
death or a serious health hazard.
NOTICE
■To ensure the system operates correctly
If any of the following situations occur, the Stop & Start system may not operate cor- rectly. Have your vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
●While the driver's seat belt is fastened, the driver's and front passenger's seat belt reminder light flashes.
●Even though the driver's seat belt is not fastened, the driver's and front passenger'sseat belt reminder light does not illuminate.
●Even though the driver's door is closed, the open door warning is displayed on the
multi-information display or the interior lig ht is illuminated when door linked illumina- tion is enabled ( P. 553).
●Even though the driver's door is open, the open door warning is not displayed on the
multi-information display or the interior light does not illuminate when door linked illumination is enabled ( P. 553).

3694-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
• Immediately after the RCTA function is turned on • Immediately after the engine is started with the RCTA function on
●Instances of the RCTA function unnecessarily detecting a vehicle and/or object mayincrease in the following situations:
• 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 ofthe vehicle, is short
• When backing out of a shallow angle park- ing spot
• When the sensors cannot detect a vehicle due to obstructions
• When the parking space faces a street and
vehicles are being driven on the street

3764-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
You can change the buzzer sounds volume and the screen operating conditions
when the engine switch is in IGNITION ON mode.
Press the “MENU” button on the Le xus Display Audio controller/Remote
Touch, and then select on the screen.
Select “Vehicle”, and then select “LEXUS park assist” on the screen.
Select the desired item.
The buzzer sounds volume can be adjusted.
On or off can be selected for Le xus parking assist-sensor display.
Both the front or rear ce nter sensors display and tone indication can be set.
Setting up Lexus parking assist-sensor
1
2
3
Lexus Display Audio screenNavigation system screen
1
2
3

3774-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■The Lexus parking assist-sensor can be operated when
●Front corner sensors:
• The engine switch is in IGNITION ON mode. • The shift lever is in other than P.
• The vehicle speed is less than about 10 km/h (6 mph). (At any speed when the shift lever is in R)
●Front center sensors:
• The engine switch is in IGNITION ON mode. • The shift lever is in other than P or R.
• The vehicle speed is less than about 10 km/h (6 mph).
●Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode. • The shift lever is in R.
■Lexus parking assist-sensor display
●Vehicles with a Lexus Display Audio system : When an obstacle is detected while the Lexus parking assist monitor is in use, the warning indicator will appear in the upperpart of the screen even if the display setting has been set to off.
●Vehicles with a navigation system: If the Lexu s parking assist-sensor display is set to on, detected objects will also be displayed on the panoramic view monitor. For details, refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.
■Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s bumper.
●Certain vehicle conditions and the surrounding environment may affect the ability of a
sensor to correctly detect an obstacle. Particular instances where this may occur are listed below.
• There is dirt, snow or ice on the sensor . (Wiping the sensors will resolve this prob-
lem.) • The sensor is frozen. (Thawing the area will resolve this problem.) In especially cold weather, if a sensor is frozen the screen may show an abnormal
display, or obstacles may not be detected. • The sensor is covered in any way.• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass. • The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines, airbrakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity. • The sensor is coated with a sheet of spray or heavy rain. • The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed. • The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb. • In harsh sunlight or intense cold weather.• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor. • A non-genuine Lexus suspension (low ered suspension etc.) is installed. • People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of their shape, signs and other objects may be judged by a sensor to be closer than they are.