warning Lexus GS350 2017 Owner's Manual

3644-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
■The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■Rear Crossing Traffic Alert buzzer hearing
Rear Crossing Traffic Alert function may be difficult to hear over loud noises such as high
audio volume.
■When there is a malfunction in the Blind Spot Monitor
If a system malfunction is detected due to any of the following reasons, warning mes-
sages will be displayed: ( P. 524)
●There is a malfunction with the sensors
●The sensors have become dirty
●The outside temperature is extremely high or low
●The sensor voltage has become abnormal
■Switching the Blind Spot Monitor function and Rear Crossing Traffic Alert function on
and off
Settings can be changed from on the multi-information display (P. 121, 129).
Press or on the meter control switch and select “BSM”.
Each time on the meter control switch is pressed, the function switches between
“On” and “Off”.
■Certification for the Blind Spot Monitor
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4-5. Using the driving support systems
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Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
For vehicles sold in Ukraine
WARNING
■Handling the radar sensor
●Keep the sensor and its surrounding area on the bumper clean at all times .
●Do not subject the sensor or surrounding area on the bumper to a strong impact. If
the sensor moves even slightly off position, the system may malfunction and vehicles
that enter the detection area may not be detected. If the sensor or surrounding ar ea is
subject to a strong impact, always have the area inspected by any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surr ounding area on the
bumper.
●Do not modify the sensor or surrounding area on the bumper.
●Do not paint the rear bumper any color other than an official Lexus color.
One Blind Spot Monitor sensor is installed
inside the left and right side of the vehicle rear
bumper respectively. Observe the following to
ensure the Blind Spot Monitor can function
correctly.

3684-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
The Blind Spot Monitor function uses radar sensors to detect vehicles that are
traveling in an adjacent lane in the area that is not reflected in the outside rear
view mirror (the blind spot), and advises the driver of the vehicle’s existence via
the outside rear view mirror indicator.
The areas that vehicles can be detected in are outlined below.
The range of the detection area
extends to:
Approximately 3.5 m (11.5 ft.) from
the side of the vehicle
The first 0.5 m (1.6 ft.) from the side of
the vehicle is not in the detection area
Approximately 3 m (9.8 ft.) from the
rear bumper
Approximately 1 m (3.3 ft.) forward
of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor function detection areas
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2
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WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Blind Spot Monitor function is a supplementary function which alerts the driver
that a vehicle is present in th e blind spot. Do not overly rely on the Blind Spot Monitor
function. The function cannot judge if it is sa fe to change lanes, therefore over reliance
could cause an accident resulting in death or serious injury.
According to conditions, the system may no t function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.

3704-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
The Rear Crossing Traffic Alert functions when your vehicle is in reverse. It can
detect other vehicles approaching from the ri ght or left rear of the vehicle. It uses
radar sensors to alert the driver of the other vehicle’s existence through flashin g
the outside rear view mirror in dicators and sounding a buzzer.
The Rear Crossing Traffic Alert function
Approaching vehicles Detection areas
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Rear Crossing Traffic Alert function is only an assist and is not a replacement for
careful driving. The driver must be careful when backing up, even when using the Rear
Crossing Traffic Alert function. The driver’s own visual confirmation of behind you and
your vehicle is necessary and be sure there are no pedestrians, other vehicles etc.
before backing up. Failure to do so could cause death or serious injury.
According to conditions, the system may no t function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
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3744-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
■Automatic cancelation of the selected TVD control mode
SLALOM and TRACK mode are canceled when the engine switch is turned off. When
the engine switch is turned to IGNITION ON mode, the TVD system will be in STAN-
DARD mode.
■Automatic disabling of the TVD system
If a malfunction is detected in the TVD sy stem, a warning message will be displayed on
the multi-information display ( P. 524) and the TVD system will be disabled automati-
cally. If the system is disabled, driving force will not be distributed by the TVD but through
normal differential operation.
■To protect the system
If the TVD fluid temperature becomes excessi vely high due to driving for a long time
under extremely high load conditions, a warning message will be displayed on the multi-
information display. ( P. 524)
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driv ing. Do not overly rely on the TVD system.
Always drive safely, taking care to observe your surroundings.

3784-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
■Turning off both TRC and VSC systems
GS350/GS200t
To turn the TRC and VSC systems off, press 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.
GS F
To turn the TRC and VSC systems off, press and hold for more than 3 seconds.
The “TRC OFF” indicator light and the VSC OFF indi cator light will come on.*
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. The PCS (Pre-Crash Safety system) warning light
will come on and a message will be disp layed on the multi-information display.
(  P. 524)
■Expert mode (GS F)
When expert mode is selected, it is possible to drive in a more sporty manner than other
drive modes. Expert mode disables the TRC and VSC systems but the engine and
brakes may be controlled depending on the vehicle behavior.
■When the message is displayed on the mult i-information display showing that TRC has
been disabled even if has not been pressed (GS350/GS200t)
TRC and hill-start assist control cannot be operated. Contact any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
To select expert mode, press when in
SPORT S+ mode.
The “EXPERT” indicator will come on together
with the TRC OFF and VSC OFF indicators.
To cancel expert mode, press or use the
driving mode select swit
ch to select a driving
mode other than SPORT S+ mode.

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4-5. Using the driving support systems
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Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
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 operat ing 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 may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC 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 the hill-start assist co ntrol. The 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.

3824-5. Using the driving support systems
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Expert mode precautions (GS F)
●Do not use on public roads.
●Use only when the road conditions and safety of the surrounding area can be
ensured.
●Proper use of expert mode re quires a professional level of driving skill. When using
expert mode, always check the road conditions and surrounding area and drive more
carefully than usual.
■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 tires 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 retailer or Lexus authorized repairer, or any reliable
repairer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may cause a system to malfunction.

387
4-6. Driving tips
4
Driving
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the
snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains (GS350/GS200t with front and rear tires of the same size)
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit spec ified for the tire chains being used, or 50
km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steerin g, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is main-
tained.
●Do not use LKA (Lane-Keeping Assist) system. (if equipped)
●Do not use LDA (Lane Departure Alert with steering control) system. (if equipped)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow ti res from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of the
tire pressure warning va lves and transmitters.
■Fitting tire chains (GS350/GS200t with front and rear tires of the same size)
The tire pressure warning valves and transmitters may not function correctly when tire
chains are fitted.
■When standing the windshield wipers up
Raise the wipers in line with the windshield. ( P. 386)
Failure to do so may result in damage to the wipers and/or the hood.

3925-1. Remote Touch screen
GS350_200t_GS F_OM_OM30F83E_(EE)
■Screen display during low temperatures
When the ambient temperature is extremely low, screen response may be delayed even
if the Remote Touch is operated.
WARNING
■When using the Remote Touch
●Do not allow fingers, fingernails or hair to become caught in the Remote Touch as this
may cause an injury.
●Be careful when selecting the Remote Touch in extreme temperatures as it may
become very hot or cold due to the temperature inside the vehicle.
NOTICE
■To prevent damage to the Remote Touch
●Do not allow the Remote Touch to come into contact with food, liquid, stickers or lit
cigarettes as doing so may cause it to change color, emit a strange odor or stop func-
tioning.
●Do not subject the Remote Touch to excessive pressure or strong impact as the knob
may bend or break off.
●Do not allow coins, contact lenses or other such items to become caught in the
Remote Touch as this may cause it to stop functioning.
●Items of clothing may rip if they be come caught on the Remote Touch knob.
●If your hand or any object is on the Re mote Touch knob when the engine switch is
turned to ACCESSORY mode, the Remote Touch knob may not operate properly.