2020 Lexus ES350 stop start

3537-2. Steps to take in an emergency
7
When trouble arises
Vehicle pulls heavily to one side
when driving on a level road
 Loss of brake effectiveness, spongy
feeling, pedal almost touches the
floor
Follow the procedure below to restart
the engine after the system is activated.
1
Turn the engine switch to ACCES-
SORY mode or turn it off.
2
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage
when the engine stalls or when an
airbag inflates upon collision, the
fuel pump shut off system stops the
supply of fuel to the engine.
Restarting the engine
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the
ground, the fuel sy stem has been dam-
aged and is in need of repair. Do not
restart the engine.

3637-2. Steps to take in an emergency
7
When trouble arises
WARNING
As an added safety feature, your vehicle
has been equipped with a tire pressure
monitoring system (TPMS-tire pressure
warning system) that illuminates a low
tire pressure telltale (tire pressure warn-
ing light) when one or more of your tires
is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale
(tire pressure warnin g light) illuminates,
you should stop and check your tires as
soon as possible, and inflate them to the
proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire
to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi-
ciency and tire tread life, and may affect
the vehicle’s handling and stopping abil-
ity.
Please note that the TPMS (tire pressure
warning system) is not a substitute for
proper tire maintenance, and it is the
driver’s responsibility to maintain correct
tire pressure, even if under-inflation has
not reached the level to trigger illumina-
tion of the TPMS low tire pressure telltale
(tire pressure warning light).
Your vehicle has also been equipped with
a TPMS (tire pressure warning system)
malfunction indicator to indicate when
the system is not operating properly. The
TPMS (tire pressure warning system)
malfunction indicator is combined with
the low tire pressure telltale (tire pres-
sure warning light). When the system
detects a malfunction, the telltale will
flash for approximately one minute and
then remain continuously illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may
not be able to detect or signal low tire
pressure as intended.TPMS (tire pressure warning system)
malfunctions may occur for a variety of
reasons, including the installation of
replacement or alternate tires or wheels
on the vehicle that prevent the TPMS
(tire pressure warning system) from func-
tioning properly. Always check the
TPMS (tire pressure warning system)
malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate
tires and wheels allow the TPMS (tire
pressure warning system) to continue to
function properly.
NOTICE
■To ensure the tire pressure warning
system operates properly
Do not install tires with different specifi-
cations or makers, as the tire pressure
warning system may not operate prop-
erly.

3667-2. Steps to take in an emergency
*: A buzzer sounds the first time a message is shown on the multi-information display.
In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.
 If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective actio n according to the warning light. ( P.354)
■Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications.
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary.
This message may appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and check to see if the mes-
sage disappears.
■If “Engine Stoppe d Steering Power
Low” is displayed
This message is displa yed if the engine is
stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering wheel
firmly and operate it using more force than
usual.
■If “Auto Power Off to Conserve Battery”
is displayed
Power was turned off due to the automatic
power off function. Next time when starting
the engine, increase the engine speed
slightly and maintain that level for approxi-
mately 5 minutes to recharge the battery.
■If “High Power Cons umption Power to
Climate Temporarily Limited” is dis-
played
Turn off unnecessary electronic equipment
to reduce power consumption.
Please wait until the power supply returns to
normal.
■If “Headlight System Malfunction Visit
Your Dealer” is displayed
The following systems may be malfunction-
ing. Have the vehicle inspected by your
Lexus dealer immediately.
●The LED headlight system
●AFS (Adaptive Front-lighting System)
●The automatic headlight leveling system
(if equipped)
●Automatic High Beam
■If “Radar Cruise Control Unavailable
See Owner’s Manual” is shown
The dynamic radar cruise control with full-
Comes onDoes not sound
Indicates a condition, such as malfunction of electri-
cal components, their condition, or indicates the
need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctly
Warning buzzer*Warning

3797-2. Steps to take in an emergency
7
When trouble arises
open.
■Key linked functions
1
Closes the windows and the moon roof
(if equipped) or panoramic moon roof
(if equipped) (turn and hold)
2
Opens the windows and the moon roof
(if equipped) or panoramic moon roof
(if equipped) (turn and hold)
These settings must be customized at your
Lexus dealer.
1Ensure that the shift lever is in P and
depress the brake pedal.
2
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will
turn to IGNITION ON mode.
When the smart access system with push-
button start is deactivated in customization
setting, the engine switch will turn to
ACCESSORY mode.
3Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4
Press the engine switch shortly and
firmly.
In the event that the engine still cannot
be started, contact your Lexus dealer.
■Stopping the engine
Set the parking brake, shift the shift lever to
P and press the engine switch as you nor-
mally do when stop ping the engine.
■Electronic key battery
As the above procedure is a temporary
measure, it is recommended that the elec-
tronic key battery be replaced immediately
when the battery is depleted. (P.336)
■Changing engine switch modes
Release the brake pedal and press the
WARNING
■When using the mechanical key and
operating the power windows or
moon roof (if equipped) or panoramic
moon roof (if equipped)
Operate the power window, moon roof
or panoramic moon roof after checking
to make sure that there is no possibility of
any passenger having any of their body
parts caught in the window, moon roof or
panoramic moon roof.
Also, do not allow ch ildren to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window, moon roof or pan-
oramic moon roof.
Starting the engine

3817-2. Steps to take in an emergency
7
When trouble arises
Then, connect a negative cable clamp to on the second vehicle and con-
nect the clamp at the other end of the negative cable to .
Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic poin t away from the battery and any mov-
ing parts as shown in the illustration
4 Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the battery of your vehi-
cle.
5 Open and close any of the doors of
your vehicle with the engine switch
off.
6 Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode.
7 Once the vehicle’s engine has
started, remove the jumper cables in the exact reverse order from
which they were connected.
Once the engine starts, have the vehicle
inspected at your Lexus dealer as soon as
possible.
■Starting the engine when the battery is
discharged
The engine cannot be started by push-start-
ing.
■To prevent battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is stopped.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■When the battery is removed or dis-
charged
●Information stored in the ECU is cleared.
C
D
A
B
C
D

3847-2. Steps to take in an emergency
radiator core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F” line
“L” line
Coolant inlet cap
5
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
6Start the engine and turn the air
conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on
and off repeatedly.
(The fan may not oper ate in freezing tem-
peratures.)
7If the fan is not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
A
B
A
B
C
D
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.

3857-2. Steps to take in an emergency
7
When trouble arises
1Stop the engine. Set the parking
brake and shift the shift lever to P.
2
Remove the mud, snow or sand
from around the front wheels.
3
Place wood, stones or some other
material under the front wheels to
help provide traction.
4
Restart the engine.
5
Shift the shift lever to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.
■When it is difficult to free the vehicle
Press the switch to turn off TRAC.
WARNING
●Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fan and belts. Failure to do so may
cause the hands or clothing to be
caught, resulting in serious injury.
●While the engine and radiator are hot,
do not loosen or remove the coolant
inlet cap or coolant reservoir cap.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has
cooled down sufficiently. Adding cool
coolant to a hot engine too quickly can
cause damage to the engine.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.
If the vehicle becomes stuck
Carry out the following proce-
dures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Recovering procedure

433What to do if... (Troubleshooting)
In this case, the engine can be started in a
temporary way. ( P.379)
Is the battery discharged?
( P.380)
 Is the engine switch in IGNITION
ON mode?
If you cannot release the shift lever
by depressing the brake pedal with
the engine switch in IGNITION ON
mode ( P.149)
 It is locked automatically to prevent
theft of the vehicle. ( P.144)
 Is the window lock switch pressed?
The power window at the except for the
one at the driver’s seat cannot be operated
if the window lock switch is pressed.
( P.125)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not running) for
a period of time. ( P.146) 
The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.357, 357)
 The parking brake indicator is on
Is the parking brake released? ( P.152)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.354, 364)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.62)
To stop the alarm, turn the engine
switch to IGNITION ON mode, or
start the engine.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.364)
 When a warning light turns on or a
warning message is displayed, refer
to P.354, 364.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed