2020 LEXUS RX350 stop start

3295-6. Using the other interior features
5
Interior features
memorized.
2Place a portable device on the
charging area with its charging sur-
face facing down.
While charging, the operation indicator
light (orange) will be illuminated.
If charging does not begin, move the porta-
ble device as close to the center of the
charging area as possible.
When charging is complete, the operation
indicator light (green) will illuminate.
■Recharging function
 If a certain amount of time has
elapsed since charging completed
and the portable device has not
been moved, the wireless charger
will restart charging.
 If the portable device is moved
within the charging area, charging
will stop temporarily then restart.
■Operation indicator light status
*: Depending on the portable device, the
operation indicator light may stay illumi-
nated (orange) afte r charging has com-
pleted.
■If the operation indicator light
blinks
If an error is dete cted, the operation
indicator light will blink (orange). Take
the appropriate measures according to
the table below.
 Blinks (orange) at a one second
interval continuously
 Blinks (orange) 3 times repeatedly
Operation indica-
tor lightState
OffThe Wireless charger
is off
Green (illumi-
nated)
Standby (charging is
possible)
Charging is complete*
Orange (illumi-
nated)
A portable device has
been placed on the
charging area (identi-
fying the portable
device)
Charging in progress
Suspected causesMeasure
Vehicle to char-
ger communica-
tion failure.Contact your Lexus
dealer.

3445-6. Using the other interior features
opener motor recognizes the
HomeLink
® signal.
■Enabling 2-way communication
with a garage door (only available
for compatible devices)
When enabled, 2-way communication
allows you to check the status of the
opening and closing of a garage door
through indicators in your vehicle.
2-way communication is only available
if the garage door opener motor used
is a compatible device. (To check
device compatibility, refer to
www.homelink.com.)
1 Within 5 seconds after program-
ming the garage door opener has
been completed, if the garage door
opener motor is trained to Home-
Link
®, both garage door operation
indicators will flash rapidly (green)
and the light on the garage door
opener motor will b link twice, indi-
cating that 2-way communication is
enabled.
If the indicators do not flash, perform 2 and
3 within the first 10 presses of the Home-
Link
® button after programming has been
completed.
2 Press a programmed HomeLink®
button to operate a garage door. 3
Within 1 minute of pressing the
HomeLink
® button, after the
garage door operation has
stopped, press the “Learn” or
“Smart” button on the garage door
opener motor. Within 5 seconds of
the establishment of 2-way com-
munication with the garage door
opener, both garage door opera-
tion indicators in the vehicle will
flash rapidly (green) and the light
on the garage door opener motor
will blink twice, indicating that
2-way communication is enabled.
■Reprogramming a single Home-
Link
® button
When the following procedure is per-
formed, buttons which already have
devices registered to them can be
overwritten:
1 With one hand, press and hold the
desired HomeLink
® button.
2 When the HomeLink
® indicator
starts flashing (orange), continue to
hold the HomeLink
® button and
perform “Programming Home-
Link
®” 1 (it takes 20 seconds for
the HomeLink
® indicator to start
flashing).
■Before programming
●Install a new battery in the transmitter.
●The battery side of the transmitter must
be pointed away from the HomeLink®.

403
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers.................. 404
If your vehicle has to be stopped in an emergency .......................... 404
If the vehicle is trapped in rising water............................................ 405
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................ 407
If you think something is wrong .......................................................... 411
Fuel pump shut off system ...... 412
If a warning light turns on or a warning buzzer sounds ........ 413
If a warning message is displayed ........................................................ 422
If you have a flat tire.................. 426
If the engine wi ll not start .......438
If you lose your keys ................. 440
If the fuel filler door cannot be opened........................................ 440
If the electronic key does not operate properly ..................... 441
If the vehicle battery is discharged ........................................................ 443
If your vehicle overheats ........ 447
If the vehicle becomes stuck ........................................................ 449

4127-2. Steps to take in an emergency
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.
1Turn 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 system has been dam-
aged and is in need of repair. Do not
restart the engine.

4217-2. Steps to take in an emergency
7
When trouble arises
WARNING
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
Failure to do so could cause a loss of
vehicle control and result in death or
serious injury.
●Stop your vehicle in a safe place as
soon as possible. Adjust the tire infla-
tion pressure immediately.
●If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is probable that you have
a flat tire. Check the tires. If a tire is flat,
change it with the spare tire and have
the flat tire repaired by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and brak-
ing.
If the vehicle tires deteriorate, you
could lose control of the steering
wheel or the brakes.
■If a blowout or sudden air leakage
should occur
The tire pressure warning system may
not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if pro-
vided), should be checked monthly when
cold and inflated to the inflation pressure
recommended by the vehicle manufac-
turer on the vehicle placard or tire infla-
tion pressure label (tire and load
information label). (I f your vehicle has
tires of a different size than the size indi-
cated on the vehicle placard or tire infla-
tion pressure label [tire and load
information label], yo u should determine
the proper tire infl ation pressure for
those tires.)
As an added safety fe ature, 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 ti re pressure telltale
(tire pressure warning 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.

4247-2. Steps to take in an emergency
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.413)
*: A buzzer sounds the first time a message is shown on the multi-information display.
■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 “Shift to P Before Exiting Vehicle” is
displayed
Message is displayed when the driver’s
door is opened withou t turning the engine
switch off with the shift lever in any position
other than P.
Shift the shift lever to P.
■If “Power Turned Off to Save Battery” is
displayed
This message is displayed when the power
was cut off due to the automatic power off
function. The next time the engine is started,
increase the engine speed slightly and
maintain it at that speed for approximately
5 minutes to recharge the battery.
■If “AWD System Overheated Switching
to 2WD Mode” or “AWD System Over-
heated 2WD Mode Engaged” is dis-
played (AWD models)
This message may be displayed when driv-
ing under extremely high load conditions.
Drive the vehicle at low speeds or stop the
vehicle in a safe place with the engine run-
ning until the me ssage is cleared.
If the message is not cleared, have the vehi-
cle inspected by your Lexus dealer.
■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) (if
equipped)
●The automatic headlight leveling system
●Automatic High Beam
■If “Radar Cruise Control Unavailable
See Owner's Manual” is displayed
The dynamic radar cruise control with
full-speed range system is suspended tem-
porarily or until the problem shown in the
message is re solved. (causes and coping
methods: P.209)
Comes onDoes not sound
Indicates a condition, such as malfunction of electri-
cal components, their cond ition, 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

4437-2. Steps to take in an emergency
7
When trouble arises
When the smart access system with
push-button start is deactivated in custom-
ization setting, the engine switch will turn
to ACCESSORY mode.
3 Firmly 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
Shift the shift lever to P, set the parking
brake, and press the engine switch as you
normally do when stopping the engine.
■Replacing the key battery
As the above procedure is a temporary
measure, it is recomme nded that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( P.389)
■Changing engine switch modes
Release the brake pedal and press the
engine switch in step 3 above. The engine
does not start and modes will be changed
each time the switch is pressed. ( P.179)
If the vehicle battery is dis-
charged
The following procedures may be
used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.

4487-2. Steps to take in an emergency
coolant is unavailable.
6Start the engine and turn the air
conditioning system on to check
that the radiator cooling fans oper-
ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fans are oper-
ating by checking the fan sound and air
flow. If it is difficult to check these, turn the
air conditioning system on and off repeat-
edly.
(The fans may not oper ate in freezing tem-
peratures.)
7 If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.
8 Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner's Manual” is shown on the
multi-information display.
If the message does not disappear:
Stop the engine and contact your Lexus
dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
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.
●Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fans and belts.
Failure to do so may cause the hands
or clothing to be caught, resulting in
serious injury.
●Do not loosen the radiator cap and the
coolant reservoir cap while the engine
and radiator are hot.
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.