ESP Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H (OM30E26U) Owner's Guide

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4-5. Using the driving support systems
Driving assist systems
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while dri ving on a slippery road surface
◆Brake assist
Generates an increased level of br aking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces
◆Enhanced VSC (Enhanced Vehicle Sta bility Control) (if equipped)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road
surfaces by controllin g steering performance.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
◆VGRS (Variable Gear Ratio Steering) (if equipped)
Adjusts the front wheel turning angl e in accordance with the vehicle
speed and steering wheel movement
To help enhance driving safety an d performance, the following systems
operate automatically in response to various driving situations. Be
aware, however, that these systems are supplementary and should not
be relied upon too heavily when operating the vehicle.

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◆DRS (Dynamic Rear Steering) (if equipped)
Contributes to the turning characteristics and responsiveness of the
vehicle by slightly adjusting the rear wheel angle of the vehicle in accor-
dance with steering wheel movement
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
◆AVS (Adaptive Variable Suspension system)
By independently controlling the damping force of the shock absorbers
for each of the 4 wheel s according to the road and driving conditions,
this system helps riding comfort with superior steering stability, and
helps good vehicle posture
When SPORT S+ mode is selected by the driving mode select switch,
the damping force is suitable for sporty driving ( P. 2 8 1 )
◆LDH (Lexus Dynamic Handlin g system) (if equipped)
Provides independent control of the VGRS, DRS and EPS. Contributes
to turning characteristics at low speeds, responsiveness at medium
speeds and safety at high speeds by controlling the steering angle of
the front and rear wheels in accorda nce with the steering wheel opera-
tion and vehicle speed
◆VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC and
EPS, VGRS (if equipped) and DRS (if equipped) systems
Helps to maintain vehicle stability when swerving on slippery road sur-
faces by controlling the brakes, hybr id system output, steering assist,
and steering ratio
◆PCS (Pre-Collision System) (if equipped)
 P. 2 9 1

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■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheat-
ing when there is frequent steering input over an extended period of time. The steer-
ing wheel may feel heavy as a result.
* Should this occur, refrain from excessive
steering input or stop the vehicle and tu rn the hybrid system off. The EPS system
should return to normal within 10 minutes.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a warning
message will be shown on the multi-information display.
CAUTION
■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 condi-
tions
The ABS is not designed to shorten the ve hicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situa-
tions:
●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
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery
road surfaces, even if the TRAC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■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 TRAC/VSC systems are turned off
Be especially careful and drive at a spee d appropriate to the road conditions. As
these are the systems to help ensure vehicle stability and driving force, do not turn
the TRAC/VSC systems off unless necessary.

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◆Suspension control
When the system determines that there is a high possibility of a frontal
collision, the operation of AVS ( P. 285) optimally controls the damp-
ing force of the shock absorber.
◆Steering control (if equipped)
Vehicles with VGRS
There is a high possibility of collisi on and if the steering wheel is oper-
ated, the steering gear ratio is chan ged by VGRS to help improve the
response to steering input.
Vehicles with LDH
There is a high possibility of collisi on and if the steering wheel is oper-
ated, the steering angles of the fr ont and rear wheels and the heaviness
of the steering wheel are controlled by LDH, thus heightening respon-
siveness in response to the steering operation.
◆Driver monitor system (if equipped)
When the system determines that there is a possibility of a collision, and
either the driver is not facing forwar d or the driver’s eyes are closed,
PCS warnings are given in advance to warn the driver. If the system
determines that the conditions to operate pre-collision alert braking
have been met even when the possib ility of a collision increases further,
pre-collision alert braking will operate.

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■Automatic cancelation of the pre-collision system
When a malfunction occurs due to sensor contamination, etc. that results in the sen-
sors being unable to detect obstacles, the pre-collision system will be automatically
disabled. In this case, the system will not activate even if there is a collision possibility.
■When there is a malfunction in the system, or if the system is temporarily unusable
“PCS” warning light will flash and warning messages will be displayed.
(  P. 505, 515)
■Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly ap proved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
Radiofrequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an uncon-
trolled environment.
This equipment should be in stalled and operated with minimum distance of 20 cm
between the radiator (a ntenna) and your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
For vehicles sold in Canada
This device complies with Industry Cana da licence-exempt RSS standards. Opera-
tion is subject to the following two conditions: (1) this device may not cause interfer-
ence, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.

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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: ( P. 5 1 9 , 5 2 7 )
●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
■Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A.
FCC ID: OAYSRR2A
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interferen ce received, including interference that
may cause undesired operation.
FCC Warning
Changes or modifications not expressly ap proved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
Applicable law: Canada 310
This device complies with Industry Cana da licence-exempt RSS standard(s). Oper-
ation is subject to the following two conditio ns: (1) this device may not cause interfer-
ence, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.
Frequency bands: 24.05 - 24.25GHz
Output power: less than 20 milliwatts

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CAUTION
■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 sur-
rounding area is subject to a strong im pact, always have the area inspected by
your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.
●Do not modify the sensor or surrounding area on the bumper.
●Do not paint the sensor or surrounding area on the bumper.
One Blind Spot Monitor sensor is installed
inside the left and righ t side of the vehicle
rear bumper respectively. Observe the fol-
lowing 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 out-
side rear view mirror (the blind spot), and advises the driver of the vehi-
cle’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) for-
ward of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor fu nction detection areas
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2
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CAUTION
■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 blin d 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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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 exist-
ence through flashing the outside rear view mirror indicators and sound-
ing a buzzer.
The Rear Cross Traffic Alert function
Approaching vehicles Detection areas
CAUTION
■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
careful driving. The driver must be care ful 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 vehi-
cles 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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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
●The BSM main switch is set to on.
●The shift lever is in R.
●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).
The Rear Cross Traffic Alert function detection areas
Approaching vehicleSpeedApproximate alert distance
Fas t18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)
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