LEXUS GS 300, GS 350 (2019 year). Manual — part 18
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4-5. Using the driving support systems
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Automatic cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following situations.
●
Actual vehicle speed falls more than approximately 10 mph (16 km/h) below the preset
vehicle speed.
At this time, the memorized set speed is not retained.
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Actual vehicle speed is below approximately 25 mph (40 km/h).
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VSC is activated.
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TRAC is activated for a period of time.
●
When the VSC or TRAC system is turned off by pressing the VSC OFF switch.
■
If the warning message for the cruise control is shown on the multi-information display
Press the “ON/OFF” button once to deactivate the system, and then press the button
again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately after
being activated, there may be a malfunction in the cruise control system. Have the vehi-
cle inspected by your Lexus dealer.
WARNING
■
To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON/OFF” button when not in use.
■
Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in death or
serious injury.
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In heavy traffic
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On roads with sharp bends
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On winding roads
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On slippery roads, such as those covered with rain, ice or snow
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On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
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During emergency towing
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Driving mode select switch
GS350/GS300 (vehicles without Adaptive Variable Suspension system)
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the “ECO” indicator comes on in the multi-information display.
Sport mode
Assists acceleration response by controlling the transmission, engine and
steering. Suitable for when precise handling is desirable, for example when
driving on mountain roads.
When not in sport mode and the driving mode select switch is turned to the right, the
“SPORT” indicator comes on in the multi-information display.
The driving modes can be selected to suit driving condition.
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4-5. Using the driving support systems
GS350/GS300 (vehicles with Adaptive Variable Suspension system)
Normal mode/Customized mode
Normal mode and customized mode are selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “Customize” or “CUSTOMIZE” indicator will be illumi-
nated.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
• Normal mode
For normal driving.
• Customized mode
Allows you to drive with the power train, chassis and air conditioning sys-
tem functions set to your preferred settings.
Customized mode settings can only be changed on the drive mode cus-
tomization display of the Remote Touch screen. (
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the “ECO” or “ECO MODE” indicator comes on in the multi-information display.
Except
F SPORT models F SPORT models
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Sport mode
• SPORT S mode
Assists acceleration response by controlling the transmission and engine.
When not in SPORT S mode and the driving mode select switch is turned to the
right, the “SPORT S” indicator comes on in the multi-information display.
• SPORT S+ mode
Helps to ensure steering performance and driving stability by simultane-
ously controlling the steering and suspension in addition to the transmis-
sion and engine. Suitable for sporty driving.
When in SPORT S mode and the driving mode select switch is turned to the right,
the “SPORT S+” indicator comes on in the multi-information display.
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4-5. Using the driving support systems
GS F
Normal mode/Customized mode
Normal mode and customized mode are selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “CUSTOMIZE” indicator will be illuminated.
Press the switch to change the driving mode to normal mode when Eco drive mode or
sport mode is selected. The normal mode indicator comes on in the meter.
• Normal mode
For normal driving.
• Customized mode
Allows you to drive with the power train, chassis and air conditioning sys-
tem functions set to your preferred settings.
Customized mode settings can only be changed on the drive mode cus-
tomization display of the Remote Touch screen. (
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode, if the driving mode select switch is turned to the left, the
Eco drive mode indicator comes on in the meter.
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Sport mode
• SPORT S mode
Assists acceleration response by controlling the transmission and engine.
When not in SPORT S mode, if the driving mode select switch is turned to the
right, the “SPORT S” indicator comes on in the meter.
• SPORT S+ mode
Provides earlier downshift timing than SPORT S mode in order to maintain
a high engine speed and provides faster gear changes. This mode also
changes the steering feel, suspension control and VDIM control, making it
suitable for powerful sporty driving.
When in SPORT S mode, if the driving mode select switch is turned to the right,
the “SPORT S+” indicator comes on in the meter.
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Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-
tioning system to enhance fuel efficiency. To improve air conditioning performance, per-
form the following operations:
●
Turn off eco air conditioning mode (
●
Adjust the fan speed (
●
Turn off Eco drive mode
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Automatic operation of the seat heater during Eco drive mode
Eco drive mode controls the heating operation and fan speed of the air conditioning sys-
tem to enhance fuel efficiency. If the driving mode select switch is switched to Eco drive
mode in cold temperatures, the seat heater will be automatically operated to assist heat-
ing performance.
■
Automatic deactivation of sport mode and customized mode
If the engine switch is turned off after driving in sport mode or customized mode, the
drive mode will be changed to normal mode.
■
Driving mode pop-up display (12.3-inch display only)
When the driving mode is changed, the selected driving mode will be temporarily dis-
played on the side display. (
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4-5. Using the driving support systems
BSM (Blind Spot Monitor)
The Blind Spot Monitor is a system that has 2 functions;
●
The Blind Spot Monitor function
Assists the driver in making the decision when changing lanes
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The Rear Cross Traffic Alert function
Assists the driver when backing up
These functions use same sensors.
Switching the BSM function
The Blind Spot Monitor function and Rear Cross Traffic Alert function can be
switched on and off using the multi-information display. (
P. 287)
When switched on, the BSM indicator illuminates on the meter and the buzzer
sounds.
Outside rear view mirror indicators
Blind Spot Monitor function:
When a vehicle is detected in the blind spot, the outside rear view mirror indicator
comes on while the turn signal lever is not operated. If the turn signal lever is operated
toward the detected side, the outside rear view mirror indicator flashes.
Rear Cross Traffic Alert function:
When a vehicle approaching from the right or left rear of the vehicle is detected, the
outside rear view mirror indicators flash.
Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function only)
When a vehicle approaching from the right or left rear of the vehicle is detected, a
buzzer sounds from behind the rear seat.
: If equipped
Summary of the Blind Spot Monitor
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The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■
Rear Cross Traffic Alert buzzer hearing
Rear Cross 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: (
●
There is a malfunction with the sensors
●
The sensors have become dirty
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The outside temperature is extremely high or low
●
The sensor voltage has become abnormal
■
Switching the Blind Spot Monitor function and Rear Cross Traffic Alert function on and
off
Settings can be changed from
on the multi-information display (
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
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
For vehicles sold in Canada
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4-5. Using the driving support systems
WARNING
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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 area is
subject to a strong impact, always have the area inspected by your Lexus dealer.
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Do not disassemble the sensor.
●
Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.
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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.
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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 11.5 ft. (3.5 m) from
the side of the vehicle
The first 1.6 ft. (0.5 m) from the side of
the vehicle is not in the detection area
Approximately 9.8 ft. (3 m) from the
rear bumper
Approximately 3.3 ft. (1 m) forward
of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor function detection areas
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WARNING
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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 the blind spot. Do not overly rely on the Blind Spot Monitor
function. The function cannot judge if it is safe to change lanes, therefore over reliance
could cause an accident resulting in death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
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4-5. Using the driving support systems
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The Blind Spot Monitor function is operational when
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The BSM function is turned on.
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Vehicle speed is greater than approximately 10 mph (16 km/h).
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The Blind Spot Monitor function will detect a vehicle when
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A vehicle in an adjacent lane overtakes your vehicle.
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Another vehicle enters the detection area when it changes lanes.
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Conditions under which the Blind Spot Monitor function will not detect a vehicle
The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
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Small motorcycles, bicycles, pedestrians etc.
*
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Vehicles traveling in the opposite direction
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Guardrails, walls, signs, parked vehicles and similar stationary objects
*
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Following vehicles that are in the same lane
*
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Vehicles driving 2 lanes across from your vehicle
*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■
Conditions under which the Blind Spot Monitor function may not function correctly
●
The Blind Spot Monitor function may not detect vehicles correctly in the following con-
ditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and the vehicle
that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection
area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip in the road
etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from
your vehicle
• When the vehicle that enters the detection area is traveling at about the same speed
as your vehicle
• When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Directly after the BSM function is turned on
●
Instances of the Blind Spot Monitor function unnecessarily detecting a vehicle and/or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall etc.
• When there is only a short distance between your vehicle and a following vehicle
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your vehi-
cle enters the detection area
• When items such as a bicycle carrier are installed on the rear of the vehicle
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The Rear Cross Traffic Alert functions when your vehicle is in reverse. It can
detect other vehicles approaching from the right or left rear of the vehicle. It uses
radar sensors to alert the driver of the other vehicle’s existence through flashing
the outside rear view mirror indicators and sounding a buzzer.
The Rear Cross 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 Cross Traffic Alert function is only an assist and is not a replacement for care-
ful driving. The driver must be careful when backing up, even when using the Rear
Cross 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 not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
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4-5. Using the driving support systems
The areas that vehicles can be detected in are outlined below.
To give the driver a more consistent time to react, the buzzer can alert for faster
vehicles from farther away.
Example:
■
The Rear Cross Traffic Alert function is operational when
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The BSM function is turned on.
●
The shift lever is in R.
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Vehicle speed is less than approximately 5 mph (8 km/h).
●
Approaching vehicle speed is between approximately 5 mph (8 km/h) and 18 mph
(28 km/h).
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Conditions under which the Rear Cross Traffic Alert function will not detect a vehicle
The Rear Cross Traffic Alert function is not designed to detect the following types of
vehicles and/or objects.
●
Small motorcycles, bicycles, pedestrians etc.
*
●
Vehicles approaching from directly behind
●
Guardrails, walls, signs, parked vehicles and similar stationary objects
*
●
Vehicles moving away from your vehicle
●
Vehicles approaching from the parking spaces next to your vehicle
*
●
Vehicles backing up in the parking space next to your vehicle
*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
The Rear Cross Traffic Alert function detection areas
Approaching vehicle
Speed
Approximate
alert distance
Fast
18 mph (28 km/h)
65 ft. (20 m)
Slow
5 mph (8 km/h)
18 ft. (5.5 m)
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Conditions under which the Rear Cross Traffic Alert function may not function cor-
rectly
The Rear Cross Traffic Alert function may not detect vehicles correctly in the following
conditions:
●
During bad weather such as heavy rain, fog, snow etc.
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When ice or mud etc. is attached to the rear bumper
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When multiple vehicles approach continuously
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Shallow angle parking
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When a vehicle is approaching at high speed
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When parking on a steep incline, such as hills, a dip in the road etc.
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Directly after the BSM function is turned on
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When items such as a bicycle carrier are installed on the rear of the vehicle
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Directly after the engine is started with the BSM function is turned on
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When the sensors cannot detect vehicles
because of obstacles
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4-5. Using the driving support systems
TVD (Torque Vectoring Differential) (GS F)
With the engine switch in IGNITION
ON mode, pressing the TVD switch
changes the TVD control mode.
The current TVD control mode will be
displayed on the meters.
STANDARD mode
This is the default mode and provides
an optimum balance of driving agility
and stability.
SLALOM mode
This mode emphasizes enhanced
steering response.
TRACK mode
This mode emphasizes stability for
high speed sporty driving.
The multi-information display shows the distribution of driving force between the
right and left rear wheels. (
The TVD system distributes driving force (torque) between the right and left
rear wheels automatically. This system contributes to enhanced steering
response while cornering and increased traction when exiting a corner, pro-
viding an agile driving experience.
Changing TVD control modes
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TVD control status on the multi-information display
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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 system, a warning message will be displayed on
the multi-information display (
P. 444) 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 excessively high due to driving for a long time
under extremely high load conditions, a warning message will be displayed on the multi-
information display. (
WARNING
■
Cautions regarding the use of the system
The driver is solely responsible for safe driving. Do not overly rely on the TVD system.
Always drive safely, taking care to observe your surroundings.
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