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GS450h_U (OM30D01U)
4-5. Using the driving support systems
■Lane departure warning function
●When the vehicle speed is approximately 30 mph (48 km/h) or
more
●When the lane width is more than approximately 9.1 ft. (2.8 m)
●When driving on a straight road or through a curve with a radius of
more than approximately 394 ft. (120 m)
■Lane keeping assist function
●When the vehicle speed is between approximately 45 and 112 mph
(72 and 180 km/h)
●When the vehicle-to-vehicle distance mode of the radar cruise
control is on, and the set vehicle speed is approximately 45 mph (72
km/h) or more (the function will not operate when the radar cruise
control is in set speed mode)
●When the lane width is between approximately 9.1 and 13.1 ft.
(2.8 and 4.0 m)
●When driving on a straight road or through a curve with a radius of
more than approximately 755 ft. (230 m)
Operating conditions for each function
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2754-5. Using the driving support systems
4
Driving
■Screen description
The rear view monitor system screen will be displayed if the shift lever is
shifted to R while the power switch is in ON mode.Vehicle width extension guide line
The line indicates a guide path when the vehicle is being backed straight up.
The displayed width is wider than the actual vehicle width.
Vehicle center guide lines
These lines indicate the estimated vehicle center on the ground.
Distance guide line
The line shows points approximately 1.5 ft. (0.5 m) (red) from the center of the
edge of the bumper.
Distance guide line
The line shows distance behind the vehicle, a point approximately 3 ft. (1 m)
(blue) from the edge of the bumper.
Intuitive parking assist display (if equipped)
If an obstacle is detected while the Intuitive parking assist-sensor is on, a dis-
play is shown in the top right corner of the screen.
Using the rear view monitor system
1
2
3
4
5
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2774-5. Using the driving support systems
4
Driving
■Rear view monitor system camera
The camera for the rear view
monitor system is located above
the license plate.
●Using the camera
If the camera lens becomes dirty, it cannot transmit a clear image. If
water droplets, snow or mud adhere to the lens, rinse with water and
wipe with a soft cloth. If the lens is extremely dirty, wash it with a mild
cleanser and rinse.
■Differences between the screen and the actual road
The distance guide lines and the vehicle width extension guide lines
may not actually be parallel with the dividing lines of the parking space,
even when they appear to be so. Be sure to check visually.
The distances between the vehicle width extension guide lines and the
left and right dividing lines of the parking space may not be equal, even
when they appear to be so. Be sure to check visually.
The distance guide lines give a distance guide for flat road surfaces. In
any of the following situations, there is a margin of error between the
fixation guide lines on the screen and the actual distance/course on the
road.
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4-5. Using the driving support systems
■Vehicle width extension guide lines
Visually check the surroundings and
the area behind the vehicle. In the
case shown below, the truck appears
to be outside of the vehicle width
extension guide lines and the vehicle
does not look as if it hits the truck.
However, the rear body of the truck
may actually cross over the vehicle
width extension guide lines. In reality if
you back up as guided by the vehicle
width extension guide lines, the vehi-
cle may hit the truck.
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4-5. Using the driving support systems
CAUTION
■When using the rear view monitor system screen
●The position of the fixation guide lines displayed on the screen may change in
accordance with the number of passengers, the amount of cargo etc. Be sure to
check behind and all around the vehicle direct visually and with mirror before
proceeding.
●The vehicle width extension guide lines are wider than the actual width of the
vehicle. When backing up, be sure to check behind and all around the vehicle
direct visually and with mirror before proceeding.
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GS450h_U (OM30D01U)
6-3. Do-it-yourself maintenance
Wheels
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width and
inset
*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Use only Lexus wheel nuts and wrenches designed for use with your
aluminum wheels.
●When rotating, repairing or changing your tires, check that the wheel
nuts are still tight after driving 1000 miles (1600 km).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or
rubber hammer when balancing your wheels.
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause a loss of han-
dling control.
Wheel selection
Aluminum wheel precautions
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GS450h_U (OM30D01U)
8-1. Specifications
Maintenance data (fuel, oil level, etc.)
*: Unladen vehicle
Dimensions and weight
Overall length190.7 in. (4845 mm)
Overall width72.4 in. (1840 mm)
Overall height*57.3 in. (1455 mm)
Wheelbase112.2 in. (2850 mm)
Tread*Front62.0 in. (1575 mm)
Rear62.6 in. (1590 mm)
Vehicle capacity weight
(Occupants + luggage)825 lb. (370 kg)
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8-1. Specifications
■Typical tire size information
The illustration indicates typical
tire size.Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index
(2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
■Tire dimensionsSection width
Tire height
Wheel diameter
Tire s ize
1
2
3
4
5
6
7
1
2
3
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