warning light LEXUS LX570 2019 Manual PDF

5257-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises (Flashes)
Low speed four-wheel drive indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. (  P. 309)
 Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
Center differential lock indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. (  P. 309)
 Have the vehicle inspected by your Lexus dealer immediately.
Open door warning light (warning buzzer)
* 2
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 4.0 gal. (15.0 L,
3.3 Imp.gal.) or less
 Refuel the vehicle.
Driver’s seat belt reminder light (warning buzzer)
* 3
Warns the driver to fast en his/her seat belt.
 Fasten the seat belt. (On the center panel)
Front passenger’s seat belt re minder light (warning buzzer)
* 3
Warns the front passenger to fasten his/her seat belt.
 Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on or flashes to indi-
cate that the master warning sy stem has detected a malfunction.
 P. 531
Tire pressure warning light
Indicates that:
•Flat tire
• Natural causes
• The tire pressure warnin g system is malfunctioning
 Immediately stop the vehicle in a safe place.
Handling method (  P. 528)
Power steering system warning light (warning buzzer)
Indicates a malfunction in the power steering system
 Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
(U.S.A.)
(Flashes)
(Canada)
Parking brake indicator
Indicates that the parking brake is not fully engaged or released
 Operate the parking brake switch once again.
This light comes on when the parking brake is not released.
* 4
If the
light turns off after the parking brak e is fully released, the system is
operating normally.Warning light Warning light/Details/Actions

526 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) * 1
: Brake system warning buzzer:
The buzzer sounds to indicate that the brake fluid level is low (with the vehicle
reached a speed of 3 mph [5 km/h]).
* 2
: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is not fully
closed (with the vehicle having reached a speed of 3mph [5 km/h]).
* 3
: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 24 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the se at belt is still unfa stened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer soun ds to alert the front passenger that his or
her seat belt is not fastened. The buzzer so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, the buzzer will
sound intermittently for 10 se conds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different to ne for 20 more seconds.
* 4
: Parking brake engaged warning buzzer:
A buzzer sounds to indicate that the par king brake is still engaged (with the vehicle
having reached a speed of 3 mph [5 km/h]). Brake system warning light
Indicates a malfunction in the electric parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.Warning light Warning light/Details/Actions

5277-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises ■
SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (rear), side imp act sensors (front d oor), safing sensor (rear), driver’s seat
belt buckle switch, driver’s se at position sensor, front passeng er’s seat belt buckle switch,
airbags, interconnecting wiring and power so urces, front passenger occupant classifica-
tion system, “AIR BAG ON” and “AIR BAG OFF” indicator lights, seat belt pretensioners
and force limiters. (  P. 38)■
Front passenger detection sensor, seat belt reminder and warning buzzer●
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.●
If a cushion is placed on the seat, the sens or may not detect a passenger, and the warn-
ing light may not operate properly. ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel tank empty?
If it is, fill the fu el tank immediately.●
Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible. ■
If the low speed four-wheel driv e indicator light or the center differential lock indicator
light blinks
Take the specified steps. (  P. 311)
If the brake system warning light or the malf unction indicator light also comes on, or the
low speed four-wheel drive indicator light or the center differential lock indicator light
continues to blink afte r taking the specified steps, ther e may be a malfunction in the
engine, the brake system or the four-wheel dr ive system. In this case, you may not be able
to transfer between “H4” and “L4” modes, an d the center differential lock may not be
able to be locked or unlocked. Have the vehicle inspected by your Lexus dealer, immedi-
ately.

528 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) ■
When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured:  P. 535
If none of the tires are punctured:
Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressure
warning light comes on or flashes. 
If the tire pressure warning light comes on
After the temperature of the tires has lowere d sufficiently, check the inflation pressure
of each tire and adjust th em to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
that the inflation pressure of each tire is at the specified level an d perform initialization.
(  P. 489)
If the warning light does not turn off even after several minutes have elapsed, have the
vehicle inspected by your Lexus dealer immediately. 
If the tire pressure wa rning light flashes for 1 minute then stay on
There may be a malfunction in the tire pressure warnin g system. Have the vehicle
inspected by your Lexus dealer immediately. ■
The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on du e to natural causes such as natural air leaks
or tire inflation pressure changes caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).■
When a tire is replaced with a spare tire
The spare tire is also equipped with the tire pressure warning valve and transmitter. The
tire pressure warning light will tu rn on if the tire inflation pressu re of the spare tire is low. If
a tire goes flat, even though the flat tire is replaced with the spare tire, the tire pressure
warning light does not turn off. Replace the spare tire with the repaired tire and adjust the
proper tire inflation pressure. The tire pressu re warning light will tu rn off after a few min-
utes. ■
Conditions that the tire pressure wa rning system may not function properly
 P. 492 ■
Changing the engine oil
Make sure to reset oil change system ■
Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound. 1
2

5297-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises WARNING ■
If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g in death or serious injury.■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of vehi-
cle control and result in death or serious injury. ●
Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately. ●
If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If the tire is flat, change to
the spare tire and have the flat tire repaired by the nearest Lexus dealer. ●
Avoid abrupt maneuvering and braking. 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.

530 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) WARNING ■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle ha s been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should st op and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a si gnificantly under-inflat ed tire causes the
tire to overheat and can lead to tire failure . Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is th e driver’s responsibility to ma intain correct tire pressure,
even if under-inflation has not reached the le vel to trigger illumina tion of the TPMS low
tire pressure telltale (tir e pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one mi nute and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction in dicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions 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 functioning 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 pressu re warning system) to continue to function
properly.
NOTICE ■
To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.

531
LX570_OM_OM60R07U_(U) 7
When trouble arises 7-2. Steps to take in an emergency
If a warning message is displayed Master warning light The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
instrument cluster.
Multi-information display
Handling Method Follow the instructions of the message
on the multi-information display.
If any of the warning messages are show n again after the following actions have
been performed, contact your Lexus dealer.The multi-information display shows warn ings of system malfunctions, incor-
rectly performed operations, and messag es that indicate a need for mainte-
nance. When a message is shown, perform the correction procedure
appropriate to the message. 1
2
3

532 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) The warning lights and warning buzzers operate as follows depending on the
content of the message. If a message indicates the need for inspection by a
dealer, have the vehicle inspected by your Lexus dealer immediately.
* : A buzzer sounds the first time a message is shown on the multi-information display.■
System warning lights
The master warning light does not come on or flash in the following case. Instead, a sepa-
rate system warning light will come on al ong with a message or image shown on the
multi-information display. ●
Indicates that the PCS (Pre-Collision System) is not currently functional
The PCS warning light comes on. (  P. 524)Messages and warnings System
warning
light Warning
buzzer
* Warning
Comes on Comes on Sounds
Indicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
Comes on  Sounds
 Comes on
or flashes Sounds Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning
Flashes  Sounds Indicates a situation, such as when damage
to the vehicle or danger may result
Comes on  Does not
sound Indicates a condition, such as malfunction of
electrical components, their condition, or
indicates the need for maintenance
Flashes  Does not
sound Indicates a situation, such as when an opera-
tion has been performed incorrectly, or indi-
cates how to perform an operation correctly

5337-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises ■
If “See Owner’s Manual” is shown ●
If “Smart Access System Ma lfunction” is shown, this may be a malfunction.
Immediately have the vehicle inspected by your Lexus dealer. ●
If “Transmission Fluid Temp High” is shown, it indicates that the automatic transmission
fluid temperature is too high.
Immediately stop the vehicle in a safe place, shift the shift lever to P and wait until the
warning message and light go off. If the warning message and light go off, you may
start the vehicle again. If the warning message and light do not go off, contact your
Lexus dealer. ■
If “Shift to P Before Ex iting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the engine switch
to 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 shown
Power was turned off due to the automatic power off function.
Next time when starting the engine, increase the engine speed slig htly and maintain that
level for approximately 5 minu tes to recharge the battery.■
When a message that indicates the need for the shift lever operation is shown
To prevent the shift lever from being operat ed incorrectly or the vehicle from moving
unexpectedly, a message that re quires shifting the shift leve r may be shown on the multi-
information display. In that case, follow the instruction of the message and shift the shift
lever. ■
When “Headlight System Malfunction Visit Your Dealer” is displayed on the multi-
information display
The following systems may be malfunctioning. Have the vehicle inspected by your Lexus
dealer. ●
The LED headlight system ●
The automatic headlight leveling system ●
Automatic High Beam ■
If “Forward Camera System Unavailable” or “Forward Camera System Unavailable
Clean Windshield” is displayed (if equipped)
The following systems may be suspended until the problem shown in the message is
resolved. (  P. 266, 523)●
PCS (Pre-Collision System) ●
LDA (Lane Departure Alert) ●
Dynamic radar cruise control with full-speed range ●
Automatic High Beam ■
If “Engine Oil Level Low” is shown
Indicates that engine oil level is low.
Check the level of engine oil, and add if necessary.
This message may appe ar if the vehicle is stopped on a slope.
Move the vehicle to a level surface and check to see if the message disappears.

554 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) WARNING ■
Avoiding battery fires or explosions
Observe the following precautions to preven t accidentally igniting the flammable gas
that may be emitted from the battery. ●
Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any pa rt other than the intended terminal.●
Do not allow the jumper cables to come into contact with the “+” and “-” terminals. ●
Do not allow open flame or use matches, cigarette lighters or smoke near the battery. ■
Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observ e the following precautions when handling
the battery. ●
When working with the battery, always wear safety glasses and take care not to allow
any battery fluids (acid) to come into cont act with skin, clothing or the vehicle body.●
Do not lean over the battery. ●
In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received. ●
Always wash your hands afte r handling the battery support, terminals, and other bat-
tery-related parts. ●
Do not allow childre n near the battery.
NOTICE ■
When handling jumper cables
Be careful that the jumper cables do not be come tangled in the cooling fan or any of
the belts when connecting or disconnecting them.