2018 LEXUS LS500H warning

170 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) 1 Stop the vehicle completely.
2 If the parking brake is in manual
mode, set the parking brake.
( → P.181)
3 Shift the shift position to P. ( → P.176)Check that the shift position indicator
shows P. ( → P.176)
4 Press the power switch.The hybrid system will stop, and the meter
display will be extinguished (the shift posi-
tion indicator will be extinguished a few
seconds after the meter display).
5 Release the brake pedal and check
that “ACCESSORY” or “IGNI-
TION ON” is not shown on the
meter. ■
Automatic P position selection function
→ P.177 Modes can be changed by pressing
the power switch with the brake pedal
released. (The mode changes each
time the switch is pressed.)NOTICE■
Symptoms indicating a malfunction
with the power switch
If the power switch seems to be operat-
ing somewhat differently than usual, such
as the switch sticking slightly, there may
be a malfunction. Contact your Lexus
dealer immediately.
Stopping the hybrid system WARNING■
Stopping the hybrid system in an
emergency ●
If you want to stop the hybrid system in
an emergency while driving the vehi-
cle, press and hold the power switch
for more than 2 seconds, or press it
briefly 3 times or more in succession.
( → P.420)
However, do not touch the power
switch while driving except in an emer-
gency. Turning the hybrid system off
while driving will not cause loss of
steering or braking control, however,
power assist to the st eering will be lost.
This will make it more difficult to steer
smoothly, so you should pull over and
stop the vehicle as soon as it is safe to
do so. ●
If the power switch is operated while
the vehicle is running, a warning mes-
sage will be shown on the multi-infor-
mation display and a buzzer sounds. ●
When restarting the hybrid system
after an emergency shutdown, press
the power switch.
Changing power switch modes

1734-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving is canceled, a buzzer will sound and the EV
drive mode indicator will flash and go off. ●
The hybrid battery (traction battery)
becomes low.
The remaining battery level indicated in
the “Energy Monitor” display is low.
( → P.96)●
Vehicle speed is high.●
The accelerator pedal is depressed firmly
or the vehicle is on a hill etc.
When it is possible to inform the driver of
automatic cancelation in advance, a prior
notice screen will appear on the multi-infor-
mation display. ■
Possible driving distance when driving in
EV drive mode
EV drive mode’s possible driving distance
ranges from a few hundred meters to
approximately 0.6 mile (1 km). However,
depending on vehicle conditions, there are
situations when EV drive mode cannot be
used.
(The distance that is possible depends on
the hybrid battery [traction battery] level
and driving conditions.) ■
Fuel economy
The hybrid system is designed to achieve
the best possible fuel economy during nor-
mal driving (using the gasoline engine and
electric motor [traction motor]). Driving in
EV drive mode more than necessary may
lower fuel economy. ■
If “EV Mode Unavailable” is shown on
the multi-information display
The EV drive mode is not available. The rea-
son the EV drive mode is not available (the
vehicle is idling, batter y charge is low, vehi-
cle speed is higher than the EV drive mode
operating speed range or accelerator pedal
is depressed too much) may be displayed.
Use the EV drive mode when it becomes
available.
■
If “EV Mode Deactivated” is shown on
the multi-information display
The EV drive mode has been automatically
canceled. The reason the EV drive mode is
not available (the battery charge is low,
vehicle speed is higher than the EV drive
mode operating speed range or accelera- tor pedal is depressed too much) may be
displayed. Drive the vehicle for a while
before attempting to turn on the EV drive
mode again.
WARNING■
Caution while driving
When driving in EV drive mode, pay spe-
cial attention to the area around the vehi-
cle. Because there is no engine noise,
pedestrians, people riding bicycles or
other people and vehicles in the area
may not be aware of the vehicle starting
off or approaching them, so take extra
care while driving. Therefore, take extra
care while driving even if the vehicle
proximity notification system is active.

1754-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving ■
Reverse warning buzzer
When shifting into R, a buzzer will sound to
inform the driver that the shift position is in
R. ■
To protect the hybrid transmission
If the transmission fluid temperature is high,
“Transmission Fluid Temp High See
Owner’s Manual” will be displayed on the
multi-information display and the vehicle
will go into transmission protection mode
automatically. Have the vehicle inspected
by your Lexus dealer. ■
When driving with the dynamic radar
cruise control with full-speed range
activated
Even when performing the following
actions with the intent of enabling engine
braking, engine braking will not be acti-
vated because the dynamic radar cruise
control with full-spe ed range will not be
canceled. ●
While driving in the D position, down-
shifting to 9, 8, 7, 6, 5 or 4.●
When switching the driving mode to
sport mode while driving in the D position
( → P.298)■
Restraining sudden start (Drive-Start
Control)
→ P.159■
AI-SHIFT
The AI-SHIFT automatica lly selects the suit-
able gear according to driver performance
and driving conditions.
The AI-SHIFT automatically operates when
the shift position is in D. (Shifting the shift
position to the M position cancels the func-
tion.)
■
If a message about a shift operation is
shown
To prevent the shift position from being
selected incorrectly or the vehicle from
moving unexpectedly, the shift position may
be changed automatically or operating the
shift lever may be required. In this case,
change the shift positi on following the mes-
sages on the multi- information display. ■
After recharging/reconnecting the
12-volt battery
→ P.393 ■
Customization
Some functions can be customized.
( → P.481)
WARNING■
When driving on slippery road sur-
faces
Do not accelerate or shift the shift posi-
tion suddenly.
Sudden changes in engine braking may
cause the vehicle to sp in or skid, resulting
in an accident.
NOTICE■
Hybrid battery (t raction battery)
charge
If the shift position is in N, the hybrid bat-
tery (traction battery) will not be
charged. To help prevent the battery
from discharging, avoid leaving the N
position selected for an extended period
of time. ■
Situations where sh ift control system
malfunctions are possible
If any of the following situations occurs,
shift control system malfunctions are
possible.
Immediately stop the vehicle in a safe
place on level ground, apply the parking
brake, and then contact your Lexus
dealer.
●
When the warning message indicating
the shift control system appears on the
multi-information display.
●
The display indicates that no shift posi-
tion is selected for more than a few
seconds.

176 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) Shift leverOperate the shift lever gently and securely
in the direction of the arrow on the shift
position indicator.
To shift to N, slide the shift lever in the
direction of the arrow and hold it.
Release the shift lever after each shifting
operation to allow it to return to its regular
position ( ).
Shifting to M is only possible when the shift
position is in D.
When shifting from P to N, D or R, from N,
D, M or R to P, from D or M to R, or from R
to D, ensure that the brake pedal is being
depressed and the vehicle is stationary.
Shift position indicatorMeter display:
The current shift position is highlighted.
When any shift position other than D or M
is selected, the arrow toward M and the M
position indicator are displayed in gray.
Shift lever display: The current shift posi tion is illuminated.
When selecting the sh ift position, make
sure that the shift position has been
changed to the desired position by check-
ing the shift position indicator provided on
the instrument cluster.
P position switch
■
When shifting the shift position to P
Fully stop the vehicle and set the park-
ing brake, and then press the P position
switch. When the shift position is changed to P, the
switch illuminates.
Check that the shift position indicator
shows P.Shifting the shift lever
A
B WARNING■
For the shift lever ●
Do not remove the shift lever knob or
use anything but a genuine Lexus shift
lever knob. Also, do not hang anything
on the shift lever.
Doing so could prevent the shift lever
from returning to position, causing
unexpected accidents to occur when
the vehicle is in motion. ●
In order to prevent the shift position
from accidentally being changed, do
not touch the shift lever when not using
them.
P position switch C

1774-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving ■
Shifting the shift position from P to
other positions
 While depressing the brake pedal
firmly, operate the shift lever. If the
shift lever is operated without
depressing the brake pedal, the
buzzer will sound and the shifting
operation will be disabled.
 When selecting the shift position,
make sure that the shift position has
been changed to the desired posi-
tion by checking the shift position
indicator provided on the instru-
ment cluster.
 The shift position cannot be
changed from P to M directly. ■
Automatic P position selection function
In the following situations, the shift position
is automatically changed to P. ●
When pressing the power switch with the
vehicle stopped while the power switch is
in ON mode and the shift position is in a
position other than P (after the shift posi-
tion has changed to P, the power switch
will turn off) *
●
When the vehicle is stopped after the
hybrid system has been stopped in an
emergency while driving●
When voltage of the 12-volt battery
drops while the shift po sition is in a posi-
tion other than P *
: When the power switch is pressed while
driving at extremely slow speeds, such
as immediately before stopping the vehi-
cle, the shift position may automatically
change to P. Make sure that the vehicle
is completely stoppe d before pressing
the power switch.
■
If the shift position cannot be shifted
from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt battery in
this situation. ( → P.447)
■
Driving mode
→ P.298 ■
Snow mode
Snow mode can be se lected to suit the
conditions when driving on slippery
road surfaces, such as on snow.
Turn the snow mode switch backward. The snow mode indicator illuminates.
Turn the snow mode switch backward
again to return to normal mode. WARNING■
P position switch ●
Do not press the P position switch
while the vehicle is moving.
If the P position switch is pressed when
driving at very low speeds (for exam-
ple, directly before stopping the vehi-
cle), the vehicle may stop suddenly
when the shift position switches to P,
which could lead to an accident. ●
In order to prevent the shift position
from accidentally being changed, do
not touch the P position switch or shift
lever when not using them.
NOTICE■
Notes regarding shift lever and P
position switch operation
Avoid repeatedly operating the shift
lever and P position switch in quick suc-
cession.
The system protection function may acti-
vate and it will not be temporarily possi-
ble to shift the shift position other than P.
If this happens, please wait for a while
before attempting to change the shift
position again.
Selecting the driving mode

1794-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving ●
When the “+” paddle shift switch is
pressed and held■
Downshifting restriction warning
buzzer
To help ensure safety and driving perfor-
mance, downshifting operation may some-
times be restricted. In some circumstances,
downshifting may not be possible even
when the paddle shift switch is operated. (A
buzzer will sound twice.)
To enter M mode, shift the shift position
to M. Gears can be selected by oper-
ating the paddle shift switches, allowing
you to drive in the gear of your choos-
ing.
Except F SPORT models
F SPORT models
1 Upshifting
2 DownshiftingThe gear changes once every time the
paddle shift switch is operated.
The selected gear, from M1 to M10, will be
fixed and displayed on the meter.
When in the M position, the gear will
not change unless the paddle shift
switches are operated.
However, even when in the M position,
the gears will be automatically
changed in the following situations:  When vehicle speed drops (down-
shift only).
 When vehicle speed increases
(upshift only).
 When the accelerator pedal is firmly
depressed.
 When it is necessary to protect the
transmission when the transmission
fluid temperature is high or low, or
other reasons.
Also, the gear will not shift when the
vehicle speed is low, even if an upshift
operation is performed. ■
Downshifting restrictions warning
buzzer
To help ensure safety and driving perfor-
mance, downshifting operation may some-
times be restricted. In some circumstances,
downshifting may not be possible even
when the paddle shift sw itch is operated. (A
buzzer will sound twice.)Selecting gears in the M position
A
B

182 4-2. Driving procedures
LS500h_OM_OM50F42U_(U) Operate the shift lever and P position
switch with the vehicle stopped and the
brake pedal depressed. ■
Turns automatic mode off
While the vehicle is stopped, pull and
hold the parking brake switch until a
message is shown on the multi-infor-
mation display
■
Parking brake operation●
When the power switch is not in ON
mode, the parking brake cannot be
released using the parking brake switch.●
When the power switch is not in ON
mode, automatic mode (automatic brake
setting and releasing) is not available. ■
Parking brake automatic release func-
tion●
When the shift position is shifted from P,
the parking brake will be released in
automatic mode.●
When all of the foll owing conditions are
met in manual mode, the parking brake
can be released by depressing the accel-
erator pedal.
• The driver’s door is closed
• The driver is wearing the seat belt
• The shift position is in D, M or R
■
If “EPB Frequently Operated Wait a
Minute” is displayed on the multi-infor-
mation display
If the parking brake is operated repeatedly
over a short period of time, the system may
restrict operation to prevent overheating. If
this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute. ■
If “EPB Activation Stopped Incom-
pletely” or “EPB unavailable” is dis-
played on the multi-information display
Operate the parking brake switch. If the
message does not disappear after operat-
ing the switch several times, the system may
be malfunctioning. Have the vehicle
inspected by your Lexus dealer. ■
Parking brake operation sound
When the parking brake operates, a motor
sound (whirring sound) may be heard. This
does not indicate a malfunction. ■
Parking brake operation ●
Depending on the power switch mode,
the parking brake indicator light will turn
on and stay on as described below:
ON mode: Comes on until the parking
brake is released.
Not in ON mode: Stays on for approxi-
mately 15 seconds. ●
When the power switch is turned off with
the parking brake set, the parking brake
indicator light will stay on for about 15
seconds. This does not indicate a mal-
function. ■
When the parking brake switch mal-
functions
Automatic mode (automatic brake setting
and releasing) will be turned on automati-
cally. ■
Parking the vehicle
→ P.158 ■
Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven
with the parking brake engaged. “EPB
Applied” is displayed on the multi-informa-
tion display. (with the vehicle reached a
speed of 3 mph [5 km/h])
■
If the brake system warning light comes
on
→ P.427
■
Usage in winter time
→ P.309

1834-2. Driving procedures
LS500h_OM_OM50F42U_(U) 4
Driving
Press the brake hold switch to turn the
system on The brake hold standby indicator (green)
comes on. While the system is holding
the brakes, the brake hold operated indica-
tor (yellow) comes on.
■
Brake hold system operating conditions
The brake hold system cannot be turned on
in the following conditions:
●
The driver’s door is not closed.
●
The driver is not wearing the seat belt.
If any of the conditions above are detected
when the brake hold system is enabled, the
system will turn off and the brake hold
standby indicator light will go off. In addi-
tion, if any of the co nditions are detected
while the system is holding the brake, a
warning buzzer will sound and a message WARNING■
When parking the vehicle
Do not leave a child in the vehicle alone.
The parking brake may be released unin-
tentionally and there is the danger of the
vehicle moving that may lead to an acci-
dent resulting in death or serious injury.
NOTICE■
When parking the vehicle
Before you leave the vehicle, set the
parking brake, shift the shift position to P
and make sure that the vehicle does not
move. ■
When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages. ■
When the parking brake cannot be
released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake components
overheating, which may affect braking
performance and increase brake wear.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs. Brake Hold The brake hold system keeps the
brake applied when the shift posi-
tion is in D, M or N with the system
on and the brake pedal has been
depressed to stop the vehicle. The
system releases the brake when the
accelerator pedal is depressed with
the shift position in D or M to allow
smooth start off.
Enabling the system A
B