stop start LEXUS RX200T 2017 Repair Manual

4274-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
WARNING
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road surfaces, even if the TRC/VSC system is operating. Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill-start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may not operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist co ntrol is not intended to hold the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist con-trol to hold the vehicle on an incline, as doing so may lead to an accident.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these are the systems to help ensure vehicle stability and driving force, do not turn the TRC/
VSC systems off unless necessary. Trailer Sway Control is part of the VSC syst em and will not operate if VSC turned off or experiences a malfunction.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load capacity. In addition, make sure that the tire s are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRC and VSC systems will not function correctly if different tires are installed on the vehicle.
Contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional for further information when replacing tires or wheels.

5125-11. Bluetooth®
RX350/RX200t_EE_OM48F32E
In other situations
Even though all conceivable measures have been taken, the symptom status does not change.
The cellular phone is not close enough to this system. Bring the cellular phone closer to this system.
The cellular phone is the most likely cause of the symptom.
 Turn the cellular phone off, remove and reinstall the battery pack, and then restart the cellular phone. Enable the cellular phone’s Bluetooth® connection.
 Stop the cellular phone’s security software and close all applications.  Before using an application installed on the cellular phone, carefully check its source and how its operation might affect this system.

5456-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX200t_EE_OM48F32E
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic ke y and turning the engine switch to IGNI- TION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat- ically be registered to the electronic key that was used to unlock the vehicle.
●The system may not operate correctly if more than one electronic key is in the vicinity or
if the smart entry & start system is used to unlock a passenger door.
●The doors that can recall the air conditioni ng setting when unlocked using the smart entry & start system can be changed.* For details, contact any authorized Lexus dealer
or repairer, or another duly qu alified and equipped professional.
*: The doors that can recall the driving position memory are changed at the same time.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions. Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately after the “AUTO” button is pressed or “AUTO” is selected.
■Operation of S-FLOW mode
In automatic mode, S-FLOW mode will be turned off if a rear door has been opened and
closed. To activate S-FLOW mode again, press .
■Automatic mode for air intake control (if equipped)
In automatic mode, the system detects exhaust gas and other pollutants and automati-
cally switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic mode on will activate the dehumidification function.
■Fogging up of the windows
●The windows will easily fog up when the humidi ty in the vehicle is high. Selecting “A/C” will dehumidify the air from the outlets and defog the windshield effectively.
●If you turn “A/C” off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.

5696-5. Using the other interior features
6
Interior features
RX350/RX200t_EE_OM48F32E
■Name for all parts
Power supply switch
Operation indicator light
Charge area
■Using the wireless charger
Press the power supply switch of
the wireless charger.
Pressing the switch again turns the wireless charger off.
When turned on, the operation indi-
cator light (green) comes on.
When the engine switch is turned off, the on/off state of the wireless char-
ger will be memorized.
Place a portable device on the
charging area with its charging
surface facing down.
While charging, the operation indi- cator light (orange) will be illumi-
nated.
If charging does not begin, move the portable device as close to the cen-
ter of the charging area as possible.
When charging is complete, the operatio n indicator light (green) will illuminate.
●Recharging function
• If a certain amount of time has elapsed since charging completed and
the portable device has not been moved, the wireless charger will
restart charging.
• If the portable device is moved within the charging area, charging will
stop temporarily then restart.
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5756-5. Using the other interior features
6
Interior features
RX350/RX200t_EE_OM48F32E
●The power outlets can be used when the engine switch is in ACCESSORY or IGNI- TION ON mode.
●RX200t: When the engine restarts after having been stopped by the Stop & Start sys-
tem, the power outlets may be temporarily unusable, but this is not a malfunction.
Use the front passenger footwell hooks
to help support and prevent objects
placed on the floor, such as a grocery
bag, from overturning.
●The shape of the console box rim allows power cables to be passed through when the consolebox lid is closed.
NOTICE
●To avoid damaging the power outlets, install the cap or close the lid when the power
outlets is not in use. Foreign objects or liquids that enter th e power outlets may cause a short circuit.
●To prevent battery discharge, do not use the power outlets longer than necessary
when the engine is off.
Front passenger footwell hooks
NOTICE
To prevent the hooks from being damaged, do not hang anything from a hook or apply excessive force to it.

655
8When trouble arises
RX350/RX200t_EE_OM48F32E
8-1. Essential information
Emergency flashers ..................656
If your vehicle has
to be stopped
in an emergency ...................... 657
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed................................658
If you think something
is wrong....................................... 664
Fuel pump shut off system ...... 665
If a warning light turns
on or a warning buzzer
sounds.......................................... 666
If a warning message
is displayed ................................ 673
If you have a flat tire
(vehicles with
a spare tire)................................ 679
If you have a flat tire
(vehicles without
a spare tire)................................ 693
If the engine will not start ........708
If the electronic key does
not operate properly ...............710
If the vehicle battery
is discharged............................... 714
If your vehicle overheats .......... 718
If the vehicle becomes
stuck ............................................. 722

6638-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
WARNING
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive stress on the towing eyelets, cables or ch ains. The towing eyelets, cables or chains
may become damaged, broken debris ma y hit people, and cause serious damage.
●Do not turn the engine switch off. There is a possibility that the steering wheel is locked and cannot be operated.
■Installing towing eyelets to the vehicle
Make sure that towing eyelets is installed securely. If not securely installed, towing ey elets may come loose during towing.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type truck
●Do not tow the vehicle from the rear when the engine switch is off. The steering lock mechanism is not strong enough to hold the front wheels straight.
●When raising the vehicle, ensure adequate ground clearance for towing at the oppo-
site end of the raised vehicle. Without adequate clearance, the vehicle could be dam- aged while being towed.
■To prevent body damage to the vehi cle towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent damage to the vehicle during emergency towing
Do not secure cables or chains to the suspension components.
■When towing a vehicle equipped with the Stop & Start system (RX200t)
When it is necessary to tow the vehicle with all 4 wheels contacting the ground, per- form the following procedure before towing the vehicle to protect the system.
Turn the engine switch off once, and then start the engine. If the engine does not start, turn the engine switch to IGNITION ON mode.

6658-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
Follow the procedure below to restart the engine after the system is activated.
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag
inflates upon collisio n, the fuel pump shut off system stops the supply of fuel to
the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle. If you find that fuel has leaked onto the ground, the fuel system has been damaged and
is in need of repair. Do not restart the engine.
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6698-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
*: Seat belt warning buzzer: The seat belt warning buzzer sounds to al ert the driver, front passenger and rear pas-
sengers (if equipped) that his or her seat belt is not fastened. The buzzer sounds for
30 seconds after the vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat
belt is still unfastened, the buzzer will sound in a different tone for 90 more seconds.
(Flashes)
(If equipped)
Stop & Start cancel indicator Indicates a malfunction in the Stop & Start system
(The Stop & Start cancel indicator will come on when the system is
canceled: P. 348)
 Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Low fuel level warning light Indicates that remaining fuel is approximately 10.8 L (2.8 gal.,
2.3 Imp. gal.) or less
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*
Warns the driver and/or front passe nger to fasten their seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
(If equipped)
Rear passengers’ seat belt reminder light (warning buzzer)*
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Tire pressure warning light
Indicates the following:
• Low tire pressure due to flat tire;
• Low tire pressure due to natural causes; or
• The tire pressure warning system is malfunctioning
 Immediately stop the vehicle in a safe place.
Handling method ( P. 670)
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc-
tion.
 P. 673
Warning lightWarning light/Details/Actions

6758-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
●If the following messages are shown, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional. Con-
tinuing to drive the vehicle may be dangerous.
• “Braking Power Low Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
• “Charging System Malfunction See Owner’s Manual”
●If the following message is shown, there may be a malfunction.
Immediately have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
• “Smart Entry & Start System Malfunction See Owner’s Manual”
●If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
shown, following the instructions, accordingly. ( P. 718)
●If “Transmission Fluid Temp High See Owner’s Manual” is shown, the auto-
matic transmission fluid temperature may be too high.
Immediately stop the vehicle in a safe place, shift the shift lever to P with the
engine running and wait until the message is cleared.
If the message is not cleared, contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
If a message instructing to refer to the Owner’s Manual is displayed