2022 LEXUS ES300h warning light

1934-5. Using the driving support systems
4
Driving
WARNING
QBefore using LTA system
ODo not rely solely upon the LTA sys-
tem. The LTA system does not auto-
matically drive the vehicle or reduce
the amount of attention that must be
paid to the area in front of the vehicle.
The driver must always assume full
responsibility for driving safely by pay-
ing careful attention to the surround-
ing conditions and operating the
steering wheel to correct the path of
the vehicle. Also, the driver must take
adequate breaks when fatigued, such
as from driving for a long period of
time.
OFailure to perform appropriate driving
operations and pay careful attention
may lead to an accident, resulting in
death or serious injury.
QSituations unsuitable for LTA system
In the following situations, use the LTA
switch to turn the system off. Failure to do
so may lead to an acc ident, resulting in
death or serious injury.
OVehicle is driven on a road surface
which is slippery due to rainy weather,
fallen snow, freezing, etc.
OVehicle is driven on a snow-covered
road.
OWhite (yellow) lines are difficult to see
due to rain, snow, fog, dust, etc.
OVehicle is driven in a temporary lane
or restricted lane due to construction
work.
OVehicle is driven in a construction
zone.
OA spare tire, tire chains, etc. are
equipped.
OWhen the tires have been excessively
worn, or when the tire inflation pres-
sure is low.
ODuring emergency towing
QPreventing LTA system malfunctions
and operations performed by mistake
ODo not modify the headlights or place
stickers, etc. on the surface of the
lights.
ODo not modify the suspension etc. If
the suspension etc. needs to be
replaced, contact your Lexus dealer.
ODo not install or place anything on the
hood or grille. Also, do not install a
grille guard (bull bars, kangaroo bar,
etc.).
OIf your windshield needs repairs, con-
tact your Lexus dealer.
QConditions in which functions may
not operate properly
In the following situations, the functions
may not operate properly and the vehi-
cle may depart from its lane. Drive safely
by always paying careful attention to
your surroundings and operate the
steering wheel to correct the path of the
vehicle without relying solely on the func-
tions.
OWhen the follow-up cruising display is
displayed ( P.197) and the preced-
ing vehicle changes lanes. (Your vehi-
cle may follow the preceding vehicle
and also change lanes.)
OWhen the follow-up cruising display is
displayed ( P.197) and the preced-
ing vehicle is swaying. (Your vehicle
may sway accordingly and depart from
the lane.)

1944-5. Using the driving support systems
WARNING
OWhen the follow-up cruising display is
displayed (P.197) and the preced-
ing vehicle departs from its lane. (Your
vehicle may follow the preceding vehi-
cle and depart from the lane.)
OWhen the follow-up cruising display is
displayed ( P.197) and the preced-
ing vehicle is being driven extremely
close to the left/right lane line. (Your
vehicle may follow the preceding vehi-
cle and depart from the lane.)
OVehicle is being driven around a sharp
curve.
OObjects or patterns that could be mis-
taken for white (yellow) lines are pres-
ent on the side of the road (guardrails,
reflective poles, etc.).
OVehicle is driven where the road
diverges, merges, etc.
ORepair marks of asphalt, white (yellow)
lines, etc. are present due to road
repair.
OThere are shadows on the road that
run parallel with, or cover, the white
(yellow) lines.
OThe vehicle is driven in an area without
white (yellow) lines, such as in front of
a tollgate or checkpoint, or at an inter-
section, etc.
OThe white (yellow) lines are cracked,
“Botts’ dots”, “Raised pavement
marker” or stones are present.
OThe white (yellow) lines cannot be
seen or are difficult to see due to sand,
etc.
OThe vehicle is driven on a road surface
that is wet due to rain, puddles, etc.
OThe traffic lines are yellow (which may
be more difficult to recognize than
lines that are white).
OThe white (yellow) lines cross over a
curb, etc.
OThe vehicle is driven on a bright sur-
face, such as concrete.
OIf the edge of the road is not clear or
straight.
OThe vehicle is driven on a surface that
is bright due to reflected light, etc.
OThe vehicle is driven in an area where
the brightness changes suddenly, such
as at the entrances and exits of tunnels,
etc.

1954-5. Using the driving support systems
4
Driving
QLane departure alert function
When the system determines that the
vehicle might depart from its lane or
course
*, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
When the system determines that the vehi-
cle might depart from its lane and that the
possibility of a collision with an overtaking
vehicle in the adjacent lane is high, the lane
departure alert will operate even if the turn
signals are operating.
*: Boundary between asphalt and the side of the road, such as grass, soil, or a curb
WARNING
OLight from the headlights of an oncom-
ing vehicle, the sun, etc. enters the
camera.
OThe vehicle is driven on a slope.
OThe vehicle is driven on a road which
tilts left or right, or a winding road.
OThe vehicle is driven on an unpaved or
rough road.
OThe traffic lane is excessively narrow
or wide.
OThe vehicle is extremely tilted due to
carrying heavy luggage or having
improper tire pressure.
OThe distance to the preceding vehicle
is extremely short.
OThe vehicle is moving up and down a
large amount due to road conditions
during driving (poor roads or road
seams).
OWhen driving in a tunnel or at night
with the headlights off or when a head-
light is dim due to its lens being dirty or
it being misaligned.
OThe vehicle is struck by a crosswind.
OThe vehicle is affected by wind from a
vehicle driven in a nearby lane.
OThe vehicle has just changed lanes or
crossed an intersection.
OTires which differ by structure, manu-
facturer, brand or tread pattern are
used.
OWhen tires of a size other than speci-
fied are installed.
OSnow tires, etc. are equipped.
OThe vehicle is being driven at
extremely high speeds.
Functions included in LTA sys-
tem

2074-5. Using the driving support systems
4
Driving
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at th is time). The system will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when the system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehicl e will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pressing the “+RES” switch or depressing
the accelerator pedal (start-off operation) will resume follow-up cruising. If the start-off
operation is not performed, system contro l continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane while
driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to overtake a
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on
the location of the steering wheel in the vehicl e (left side driver position versus right side
driver position.) If the vehicle is driven to a region where the overtaking lane is on a differ-
ent side from where the vehicle is normally driven, the vehicle may accelerate when the
turn signal lever is operated in the opposite direction to the overtaking lane (e.g., if the
driver normally operates the vehicle in a region where the overtaking lane is to the right but
then drives to a region where the overtaking lane is to the left, the vehicle may accelerate
when the right turn signal is activated).
Example of acceleration
When there are no longer any preceding vehicles driving slower than the set
speed
The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.
1 Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic radar cruise control indicator will
come on and a message will be displayed
on the multi-information display. Press the
switch again to deactivate the cruise con-
trol. If the cruise control main switch is pressed
and held for 1.5 seconds or more, the sys-
tem turns on in constant speed control
mode. (
P.211)
B
C
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)

2154-5. Using the driving support systems
4
Driving
Outside rear view mirror indicators
When a vehicle is detected in a blind spot
of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside rear
view mirror indicator will flash.
BSM indicator
When the Blind Spot Monitor is turned on,
the indicator comes on.
1 Press or of the meter con-
trol switches, select .
2 Press or of the meter con-
trol switches, select “BSM”, and
then press “OK”.
QOutside rear view mirror indicator visi-
bility
In strong sunlight, the outside rear view mir-
ror indicator may be difficult to see.
QWhen “Blind Spot Monitor Unavailable”
is shown on the multi-information dis-
play
Ice, snow, mud, etc., may be attached to the
rear bumper around the sensors. ( P.215)
Remove the ice, snow, mud, etc., attached
to the rear bumper around the sensors to
return the function to normal. Additionally,
the sensors may not operate normally when
driving in extremely hot or cold environ-
ments.
QCustomization
Some functions can be customized. (Cus-
tomizable features:  P.421)
Turning the Blind Spot Monitor
on/off
B
C
WARNING
QTo ensure the system can operate
properly
Blind Spot Monitor sensors are installed
behind the left and right sides of the rear
bumper respectively. Observe the fol-
lowing to ensure the Blind Spot Monitor
can function correctly.
OKeep the sensors and the surrounding
areas on the rear bumper clean at all
times.
If a sensor or its surrounding area on
the rear bumper is dirty or covered
with snow, the Blind Spot Monitor may
not operate and a warning message
(  P.215) will be displayed. In this situ-
ation, clear off the dirt or snow and
drive the vehicle with the operation
conditions of the BSM function
(  P.217) satisfied for approximately
10 minutes. If the warning message
does not disappear, have the vehicle
inspected by your Lexus dealer.
ODo not subject a sensor or its sur-
rounding area on the rear bumper to a
strong impact.
If a sensor is move d even slightly off
position, the system may malfunction
and vehicles may not be detected cor-
rectly.
In the following situations, have your
vehicle inspected by your Lexus
dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor is scratched or dented, or part of them
has become disconnected.
ODo not disassemble the sensor.

2244-5. Using the driving support systems
and turn it on. If the system is dis-
abled, it will remain off even if the
power switch is turned to ON mode
after the power switch has been turned
off.
QThe system can be operated when
OThe power switch is in ON mode.
OIntuitive parking assist function is on.
OThe vehicle speed is less than about 6
mph (10 km/h).
OA shift lever is shifted to a position other
than P.
QSetting the buzzer volume
The buzzer volume can be adjusted on the
multi-information display. ( P.222)
QIf “Parking Assist Unavailable Clean
Parking Assist Sensor” is displayed on
the multi-information display
A sensor may be covered with ice, snow,
dirt, etc. Remove the ice, snow, dirt, etc.,
from the sensor to return the system to nor-
mal.
Also, due to ice forming on a sensor at low
temperatures, a warning message may be
displayed or the sensor may not be able to
detect an object. Once the ice melts, the
system will return to normal.
WARNING
QCautions regarding the use of the
system
There is a limit to the degree of recogni-
tion accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surroundings and driving
safely.
QTo ensure the system can operate
properly
Observe the following precautions.
Failing to do so may result in the vehicle
being unable to be driven safely and pos-
sibly cause an accident.
ODo not damage the sensors, and
always keep them clean.
ODo not attach a sticker or install an
electronic component, such as a
backlit license plate (especially fluo-
rescent type), fog lights, fender pole or
wireless antenna near a radar sensor.
ODo not subject the surrounding area of
the sensor to a strong impact. If sub-
jected to an impact, have the vehicle
inspected by your Lexus dealer. If the
front or rear bumper needs to be
removed/installed or replaced, con-
tact your Lexus dealer.
ODo not modify, disassemble or paint
the sensors.
ODo not attach a license plate cover.
OKeep your tires properly inflated.
QWhen to disable the function
In the following situations, disable the
function as it may operate even though
there is no possibility of a collision.
OFailing to observe the warnings above.
OA non-genuine Lexus suspension
(lowered suspension, etc.) is installed.
QNotes when washing the vehicle
Do not apply intensive bursts of water or
steam to the sensor area. Doing so may
result in the sensor malfunctioning.
OWhen using a high pressure washer to
wash the vehicle, do not spray the sen-
sors directly, as doing so may cause a
sensor to malfunction.
OWhen using steam to clean the vehi-
cle, do not direct steam too close to
the sensors as doing so may cause a
sensor to malfunction.

2544-5. Using the driving support systems
system helps riding comfort with supe-
rior vehicle stability, and helps good
vehicle posture
Also, the damping force changes
depending on the selected driving
mode. (P.219)
QWhen the TRAC/VSC/ABS systems
are operating
The slip indicator light will flash while the
TRAC/VSC/ABS systems are operating.
QDisabling the TRAC system
If the vehicle gets stuck in mud, dirt or snow,
the TRAC system may reduce power from
the hybrid system to the wheels. Pressing
the switch to turn the system off may
make it easier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly press
and release the switch.
The “Traction Control Turned Off” will be
shown on the multi-information display.
Press the switch again to turn the
system back on.
QTurning off both TRAC and VSC sys-
tems
To turn the TRAC and VSC systems off, press and hold the switch for more
than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on
and the “Traction Control Turned Off” will
be shown on the multi-information display.
*
Press the switch again to turn the
system back on.
*: PCS (Pre-Collision System) will also be
disabled (only Pre-Collision warning is
available). The PCS warning light will
come on and a message will be displayed
on the multi-information display.
( P.192)
QWhen the message is displayed on the
multi-information display showing that
TRAC has been disabled even if the
switch has not been pressed
TRAC is temporary deactivated. If the
information continues to show, contact your
Lexus dealer.
QOperating conditions of hill-start assist
control
When all of the following conditions are
met, the hill-start assist control will operate:
OThe shift lever is in a position other than P
or N (when starting off forward/back-
ward on an upward incline).
OThe vehicle is stopped.
OThe accelerator pedal is not depressed.
OThe parking brake is not engaged.
QAutomatic system cancelation of hill-
start assist control
The hill-start assist control will turn off in any
of the following situations:
OThe shift lever is shifted to P or N.
OThe accelerator pedal is depressed.
OThe parking brake is engaged.
O2 seconds at maximum elapsed after the
brake pedal is released.

2564-5. Using the driving support systems
WARNING
QThe ABS does not operate effectively
when
OThe limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
OThe vehicle hydroplanes while driving
at high speed on wet or slick roads.
QStopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping distance. Always
maintain a safe distance from the vehicle
in front of you, especially in the following
situations:
OWhen driving on dirt, gravel or snow-
covered roads
OWhen driving with tire chains
OWhen driving over bumps in the road
OWhen driving over roads with pot-
holes or uneven surfaces
QTRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating.
Drive the vehicle carefully in conditions
where stability and power may be lost.
QActive Cornering Assist does not
operate effectively when
ODo not overly rely on Active Corner-
ing Assist. Active Cornering Assist
may not operate effectively when
accelerating down slopes or driving on
slippery road surfaces.
OWhen Active Cornering Assist fre-
quently operates, Active Cornering
Assist may temporarily stop operating
to ensure proper operation of the
brakes, TRAC and VSC.
QHill-start assist control does not oper-
ate effectively when
ODo not overly rely on hill-start assist
control. Hill-start assist control may
not operate effectively on steep
inclines and roads covered with ice.
OUnlike the parking brake, hill-start
assist control is not intended to hold
the vehicle stationary for an extended
period of time. Do not attempt to use
hill-start assist control to hold the vehi-
cle on an incline, as doing so may lead
to an accident.
QWhen the TRAC/ABS/VSC is acti-
vated
The slip indicator light flashes. Always
drive carefully. Reckless driving may
cause an accident. Exercise particular
care when the indicator light flashes.
QWhen the TRAC/VSC systems are
turned off
Be especially careful and drive at a
speed appropriate to the road condi-
tions. As these are the systems to help
ensure vehicle stability and driving force,
do not turn the TRAC/VSC systems off
unless necessary.
QSecondary Collision Brake
Do not rely solely upon the Secondary
Collision Brake. This system is designed
to help reduce the possibility of further
damage due to a secondary collision,
however, that effect changes according
to various conditions. Overly relying on
the system may result in death or serious
injury.