2009 Lexus GS350 steering

181
2-4. Using other driving systems
2
When driving
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Intuitive parking assist∗
∗: If equipped
Intuitive parking assist uses sensors in the front and rear of the vehicle to
detect the distance between the vehicle and any obstacles, and informs the
driver of this distance using the mult i-information display, the touch screen,
and warning beeps.
The system may be used at speeds less than about 6 mph (10 km/h).
■ Sensor types
Dual sensors
There are 4 sensors installed in the front bumper, two in the center section
to detect obstacles directly ahead, an d one in each corner of the bumper,
to detect obstacles in those areas.
The dual sensors detect obstacles ahead of the vehicle, and judge whether
avoidance maneuvers are necessary (whether the obstacle will come
within 0.8 ft. [25 cm] of the vehicl e), according to the distance between
the obstacle and the vehicle, and the steering wheel position. The screen
display and beeps will change accordingly.
Rear corner sensors
These sensors detect obstacles around the rear corners of the vehicle.
Back sensors
These sensors detect obstacles behind the vehicle.
GS_U_G.book Page 181 Monday, April 27, 2009 10:50 AM

183
2-4. Using other driving systems
2
When driving
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Multi-information display and touch screenIf the sensors detect an obstacle, it is displayed on the multi-information
display in the instrument cluster.
You can change the cond itions under which informa tion is displayed on
the touch screen. ( →P. 190)
Multi-information display
Dual sensor detection
Steering guide symbol
Rear corner sensor detection
Back sensor detection
Touch screen Dual sensor detection
Steering guide symbol
Rear corner sensor detection
Back sensor detection
If the intuitive parking assist is
operated while the rear view moni-
tor is showing, the intuitive parking
assist will be shown in the upper
right corner of the screen.
(→P. 1 8 6 )

GS_U_G.book Page 183 Monday, April 27, 2009 10:50 AM

186
2-4. Using other driving systems
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Touch screen (insert display)Dual sensor (corner) detection
Rear corner sensor detection
Back sensor detection
The tire display and the steering
guide symbol will not be displayed.
■ Dual sensor
Approximate distance
to obstacleWith beeps
(danger of collision)No beeps
(no danger of collision)
3.0 ft. (100 cm) to 1.5 ft.
(50 cm)
(blinking slowly)(continuous)
1.5 ft. (50 cm) to 1.1 ft.
(37.5 cm)
(blinking)(continuous)
1.1 ft. (37.5 cm) to 0.8 ft.
(25 cm)
(blinking rapidly)(continuous)
Less than 0.8 ft. (25
cm)
(continuous)

GS_U_G.book Page 186 Monday, April 27, 2009 10:50 AM

188
2-4. Using other driving systems
GS_G_U (OM30B43U)
April 27, 2009 10:48 am

Steering guide symbolDisplays the steering mane uvers required to avoid an obstacle. Move the
steering wheel in the direction shown by the arrow.
The steering guide symbol only
shows the maneuvers necessary to
avoid an obstacle.
When using the system, always
check your surroundings for
safety.
Beeps and obstacle distance
A beep sounds when an obstacle with which there is a danger of collision
is detected. As the vehicle moves closer to the obstacle, the interval of
the beep becomes shorter.
● When the following obstacle distances are reached, the beep changes
from intermittent to continuous:
• If the distance to the obstacle detected by the dual sensors or rear corner
sensors is less than 0.8 ft. (25 cm).
• If the distance to the obstacle detected by the back sensors is less than 1.1 ft. (35 cm).
●If obstacles are detected by the dual sensors in 2 places at once, or if
both rear corner sensors detect obst acles at the same time, the system
will sound a warning beep for the closer of the 2 obstacles.
GS_U_G.book Page 188 Monday, April 27, 2009 10:50 AM

194
2-4. Using other driving systems
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■CertificationFor vehicles sold in the U.S.A.
For vehicles sold in Canada
CAUTION
■While driving
To reduce the chance of injury in the even t of an accident or sudden stop, keep the
switch box closed.
■When using the intuitive parking assist
Observe the following precautions.
●The back sensors and rear corner sensors do not judge whether there is danger
of a collision, nor whether the obstacle can be avoided using the steering wheel.
When reversing, always check your surroundings and behind the vehicle for
safety.
●The steering guide symbol (arrow) is an approximate guide regarding obstacles.
It is not driving instructions. When movi ng forward or reversing, always check
your surroundings for safety and drive carefully.
●Do not install accessories within the sensors’ detection areas, as this may cause
the intuitive parking assist to function inco rrectly, possibly leading to an accident.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following 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.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.
GS_U_G.book Page 194 Monday, April 27, 2009 10:50 AM

195
2-4. Using other driving systems
2
When driving
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
NOTICE
■When using the intuitive parking assist
In the following situations, the system may not function correctly due to a sensor
malfunction etc. Have the vehicle checked by your Lexus dealer.
●A beep does not sound when you turn the main switch on.
●The intuitive parking assist operation display flashes, and a beep sound when no
obstacle has been detected.
●If the area around a sensor collides with something, or is subjected to strong
impact.
●If the bumper collides with something.
●If the display shows continuously without a beep.
■When changing tires
If you install tires of a size other than that recommended by the manufacturer, the
system will be unable to correctly detect steering wheel movement. Always use tire
sizes recommended by the manufacturer.
■When washing the vehicle
When washing the vehicle using high pressure cleaning equipment, do not spray
water directly on the sensors. Subjecting the sensors to high pressure impact may
cause a malfunction.
GS_U_G.book Page 195 Monday, April 27, 2009 10:50 AM

200
2-4. Using other driving systems
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Driving assist systems
To help enhance driving safety and 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.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
■Brake assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■Enhanced VSC (Enhanced Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces.
■ TRAC (Traction Control)
Helps to maintain drive power and prev ents the rear wheels from spinning
when starting the vehicle or accelerating on slippery roads.
■ Hill-start assist control
Helps prevent the vehicle from rolling backwards when starting on an
incline or slippery slope. It operates for approximately 5 seconds at maxi-
mum.
■ EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.
■Active stabilizer suspension system (if equipped)
Reduces sway when cornering accord ing to steering wheel movement
and the selected suspension damping mode, in order to maintain a stable
vehicle posture.
GS_U_G.book Page 200 Monday, April 27, 2009 10:50 AM

201
2-4. Using other driving systems
2
When driving
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
When the Enhanced VSC/TRAC/hill-start assist control systems are
operatingIf the vehicle is in danger of slip-
ping, rolling backwards when
starting on an incline, or if the rear
wheels (2WD models) or all
wheels (4WD models) spin, the
slip indicator light flashes to indi-
cate that the Enhanced VSC/
TRAC/hill-start assist control sys-
tems have been engaged.
A buzzer (intermittent) sounds to
indicate that Enhanced VSC is
operating.
The stop lights and high mounted
stoplight turn on when the hill-start
assist control system is operating.
GS460: The slip indicator lightflashes as well when
ABS is operating.
■PCS (Pre-Collision System) (if equipped)
→ P. 2 0 7
■VGRS (Variable Gear Ratio Steering) (GS460)
Adjusts the wheel turning angle in accordance with the vehicle speed and
steering wheel movement.
■VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, Enhanced VSC, TRAC, hill-start
assist control, VGRS (GS460) and EPS systems.
Helps to maintain vehicle stability when swerving on slippery road sur-
faces by controlling the brakes, engine output, and the movement of the
front wheels.
GS_U_G.book Page 201 Monday, April 27, 2009 10:50 AM