2015 Lexus IS250 Navigation Manual

288
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
1Shift the shift lever to the “R” position.
2Turn the steering wheel so that the esti-
mated course lines are within the park-
ing space, and back up slowly.
XParking space
Estimated course lines
3When the rear position of the vehicle
has entered the parking space, turn the
steering wheel so that the vehicle width
guide lines are within the left and right
dividing lines of the parking space.
XVehicle width guide line
4Once the vehicle width guide lines and
the parking space lines are parallel,
straighten the steering wheel and back
up slowly until the vehicle has complete-
ly entered the parking space.
5Stop the vehicle in an appropriate place,
and finish parking.
PARKING
When parking in a space which is in the
reverse direction to the space described
in the procedure below, the steering di-
rections will be reversed.

289
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
PERIPHERAL MONITORING SYSTEM
7
3. PARKING ASSIST GUIDE LINE DISPLAY MODE
SCREEN DESCRIPTION
No.DisplayFunction
Vehicle width guide line
Displays a guide path when the vehicle is being backed
straight up.
•The displayed width is wider than the actual vehicle
width.
Parking assist guide lines
Shows the path of the smallest turn possible behind the ve-
hicle.
•Shows the approximate position of the steering wheel
when parking.
Distance guide line
Shows distance behind the vehicle.
•Display points approximately 1.5 ft. (0.5 m) (red) from
the edge of the bumper.
Vehicle center guide lineThe line indicates the estimated vehicle center on the
ground.

290
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
1Shift the shift lever to the “R” position.
2Back up until the parking assist guide
line meets the edge of the left-hand di-
viding line of the parking space.
XParking assist guide line
Parking space dividing line
3Turn the steering wheel all the way to
the right, and back up slowly.
4Once the vehicle is parallel with the
parking space, straighten the steering
wheel and back up slowly until the vehi-
cle has completely entered the parking
space.
5Stop the vehicle in an appropriate place,
and finish parking.
PARKING
When parking in a space which is in the
reverse direction to the space described
in the procedure below, the steering di-
rections will be reversed.

291
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
PERIPHERAL MONITORING SYSTEM
7
4. LEXUS PARKING ASSIST MONITOR PRECAUTIONS
zThe image adjustment procedure for the
parking assist monitor screen is the same as
the procedure for adjusting the navigation
screen. ( →P. 44)
AREA DISPLAYED ON
SCREEN
The parking assist monitor displays an
image of the view from the bumper of
the rear area of the vehicle.
Screen Displayed area
Corners of bumper
INFORMATION
●The area displayed on the screen may
vary according to vehicle orientation
conditions.
● Objects which are close to either corner
of the bumper or under the bumper can-
not be displayed.
● The camera uses a special lens. The dis-
tance of the image that appears on the
screen differs from the actual distance.
● Items which are located higher than the
camera may not be displayed on the
monitor.

292
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
THE CAMERA
The camera for the parking assist moni-
tor is located as shown in the illustration.
USING THE CAMERA
If the camera lens becomes dirty, it can-
not transmit a clear image. If water drop-
lets, 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.
NOTICE
● The parking assist monitor may not oper-
ate properly in the following cases.
• If the back of the vehicle is hit, the posi- tion and mounting angle of the camera
may change.
• As the camera has a water proof con- struction, do not detach, disassemble or
modify it. This may cause incorrect
operation.
• Do not strongly rub the camera lens. If the camera lens is scratched, it cannot
transmit a clear image.
• Do not allow organic solvent, car wax, window cleaner or a glass coating to
adhere to the camera. If this happens,
wipe it off as soon as possible.
• If the temperature changes rapidly, such as when hot water is poured on the
vehicle in cold weather, the system may
not operate normally.
• When washing the vehicle, do not apply intensive bursts of water to the camera
or camera area. Doing so may result in
the camera malfunctioning.
● Do not expose the camera to strong
impact as this could cause a malfunction.
If this happens, have the vehicle
inspected by your Lexus dealer as soon
as possible.

293
1. LEXUS PARKING ASSIST MONITOR
PERIPHERAL MONITORING SYSTEM
IS250/350_Navi_U
7
zThe distance guide lines and the vehicle
width guide lines may not actually be paral-
lel with the dividing lines of the parking
space, even when they appear to be so. Be
sure to check visually.
z The distances between the vehicle width
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.
z 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 guide lines on the screen
and the actual distance/course on the road.
DIFFERENCES BETWEEN THE
SCREEN AND THE ACTUAL
ROADWHEN THE GROUND BEHIND
THE VEHICLE SLOPES UP
SHARPLY
The distance guide lines will appear to
be closer to the vehicle than the actual
distance. Because of this, objects will ap-
pear to be farther away than they actual-
ly are. In the same way, there will be a
margin of error between the guide lines
and the actual distance/course on the
road.

294
1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
WHEN THE GROUND BEHIND
THE VEHICLE SLOPES DOWN
SHARPLY
The distance guide lines will appear to
be farther from the vehicle than the ac-
tual distance. Because of this, objects
will appear to be closer than they actual-
ly are. In the same way, there will be a
margin of error between the guide lines
and the actual distance/course on the
road.WHEN ANY PART OF THE
VEHICLE SAGS
When any part of the vehicle sags due to
the number of passengers or the distri-
bution of the load, there is a margin of er-
ror between the guide lines on the
screen and the actual distance/course
on the road.
WHEN APPROACHING
THREE-DIMENSIONAL
OBJECTS
The estimated course lines target flat
surfaced objects (such as the road). It is
not possible to determine the position of
three-dimensional objects (such as vehi-
cles) using the estimated course lines
and distance guide lines. When ap-
proaching a three-dimensional object
that extends outward (such as the flat-
bed of a truck), be careful of the follow-
ing.
A margin of error

295
1. LEXUS PARKING ASSIST MONITOR
PERIPHERAL MONITORING SYSTEM
IS250/350_Navi_U
7
XEstimated course lines
ESTIMATED COURSE LINES
Visually check the surroundings and the
area behind the vehicle. In the case
shown below, the truck appears to be
outside of the estimated course 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 esti-
mated course lines. In reality if you back
up as guided by the estimated course
lines, the vehicle may hit the truck.DISTANCE GUIDE LINES
Visually check the surroundings and the
area behind the vehicle. On the screen,
it appears that a truck is parking at point
B. However, in reality if you back up to
point A, you will hit the truck. On the
screen, it appears that A is closest and C
is farthest away. However, in reality, the
distance to A and C is the same, and B is
farther than A and C.
Positions of A, B and C
C
A B
C
AB