warning light LEXUS LS500 2021 User Guide

401-1. For safe use
Driver’s and front passenger’s seat belt reminder light
SRS warning light
“AIR BAG ON” indicator light
“AIR BAG OFF” indicator light
Front passenger occupant classification system
Your vehicle is equipped with a front pa ssenger occupant classification system.
This system detects the conditions of th e front passenger seat and activates or
deactivates the front passenger airb ag and front passenger knee airbag.
System components
A
B
C
D
WARNING
■Front passenger occupant classifica-
tion system precautions
Observe the following precautions
regarding the front passenger occupant
classification system.
Failure to do so may cause death or seri-
ous injury.
●Wear the seat belt properly.
●Make sure the fron t passenger’s seat
belt plate has not been left inserted
into the buckle before someone sits in
the front passenger seat.
●Make sure the “AIR BAG OFF” indica-
tor light is not illuminated when using
the seat belt extender for the front pas-
senger seat. If the “AIR BAG OFF”
indicator light is illuminated, discon-
nect the extender tongue from the seat
belt buckle, and re connect the seat
belt. Reconnect the seat belt extender
after making sure the “AIR BAG ON”
indicator light is illuminated. If you use
the seat belt extender while the “AIR
BAG OFF” indicator light is illumi-
nated, the SRS airbags for the front
passenger will not activate, which
could cause death or serious injury in
the event of a collision.

411-1. For safe use
1
For safety and security
WARNING
●Do not apply a heavy load to the front
passenger seat or equipment (e.g.
seatback pocket).
●Do not put weight on the front passen-
ger seat by putting your hands or feet
on the front passenger seat seatback
from the rear passenger seat.
●Do not let a rear passenger lift the
front passenger seat with their feet or
press on the seatback with their legs.
●Do not put objects under the front pas-
senger seat.
●Do not recline the front passenger
seatback so far that it touches a rear
seat. This may cause the “AIR BAG
OFF” indicator light to be illuminated,
which indicates that the SRS airbags
for the front passenger will not activate
in the event of a severe accident. If the
seatback touches the rear seat, return
the seatback to a position where it
does not touch the rear seat. Keep the
front passenger seatback as upright as
possible when the vehicle is moving.
Reclining the seatback excessively
may lessen the effectiveness of the
seat belt system.
●If an adult sits in the front passenger
seat, the “AIR BAG ON” indicator light
is illuminated. If the “AIR BAG OFF”
indicator is illumin ated, ask the passen-
ger to sit up straight, well back in the
seat, feet on the floor, and with the seat
belt worn correctly. If the “AIR BAG
OFF” indicator still remains illumi-
nated, either ask the passenger to
move to the rear seat, or if that is not
possible, move the front passenger
seat fully rearward.
●When it is unavoidable to install a for-
ward-facing child restraint system on
the front passenger seat, install the
child restraint system on the front pas-
senger seat in the proper order.
(
P.46)
●Do not modify or remove the front
seats.
●Do not kick the front passenger seat or
subject it to severe impact. Otherwise,
the SRS warning light may come on to
indicate a malfunction of the front pas-
senger occupant clas sification system.
In this case, contact your Lexus dealer
immediately.
●Child restraint systems installed on the
rear seat should not contact the front
seatbacks.
●Do not use a seat accessory, such as a
cushion and seat cover, that covers the
seat cushion surface.
●Do not modify or replace the uphol-
stery of the front seat.

421-1. For safe use
■Adult*1
■Child*4
■Child restraint system with infant*5
Condition and operation in the front passenger occupant classification
system
Indicators/warning lights
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagActivatedFront passenger knee airbag
Indicators/warning lights
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF” or
“AIR BAG ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivated or acti-
vated
*4Front passenger knee airbag
Indicators/warning lights
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”*6
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

431-1. For safe use
1
For safety and security
■Unoccupied
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller adult sits in the
front passenger seat, the system may not re cognize him/her as an adult depending on
his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt
*3: In the event the front passenger does not wear a seat belt
*4: For some children, child in se at, child in booster seat or child in convertible seat, the sys-
tem may not recognize him/her as a child. Factors which may affect this can be the phy-
sique or posture.
*5: Never install a rear-facing child restraint system on the front passenger seat. A for-
ward-facing child restraint system should only be installed on the front passenger seat
when it is unavoidable. ( P.45)
*6: In case the indicator light is not illuminated, consult this manual on how to install the child
restraint system properly. ( P.46)
Indicators/warning
lights
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”
SRS warning light
OffDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicators/warning lights
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”
SRS warning lightOn
Driver’s and front passenger’s seat belt reminder lightOff
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

441-1. For safe use
Exhaust gas precautions
Harmful substance to the human
body is included in exhaust gases if
inhaled.
WARNING
Exhaust gases include harmful carbon
monoxide (CO), which is colorless and
odorless. Observe the following precau-
tions.
Failure to do so may cause exhaust gases
enter the vehicle and may lead to an
accident caused by light-headedness, or
may lead to death or a serious health
hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehi-
cle even when the trunk lid is closed,
open the windows and have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
■When parking
●If the vehicle is in a poorly ventilated
area or a closed area, such as a
garage, stop the engine.
●Do not leave the vehicle with the
engine on for a long time.
If such a situation cannot be avoided,
park the vehicle in an open space and
ensure that exhaust fumes do not enter
the vehicle interior.
●Do not leave the engine running in an
area with snow build-up, or where it is
snowing. If snowbanks build up around
the vehicle while the engine is running,
exhaust gases may collect and enter
the vehicle.
■Exhaust pipe
The exhaust system needs to be checked
periodically. If there is a hole or crack
caused by corrosion, damage to a joint
or abnormal exhaust noise, be sure to
have the vehicle inspected and repaired
by your Lexus dealer.

491-2. Child safety
1
For safety and security
WARNING
●Never install a rear-facing child
restraint system on the front passenger
seat even if the “AIR BAG OFF” indi-
cator light is illuminated. In the event of
an accident, the force of the rapid infla-
tion of the front passenger airbag can
cause death or serious injury to the
child if the rear-facing child restraint
system is installed on the front passen-
ger seat.
●A forward-facing child restraint system
may be installed on the front passen-
ger seat only when it is unavoidable. A
child restraint system that requires a
top tether strap should not be used in
the front passenger seat since there is
no top tether strap anchor for the front
passenger seat.
●A forward-facing child restraint system
may be installed on the front passen-
ger seat only when it is unavoidable.
When installing a forward-facing child
restraint system on the front passenger
seat, adjust the seatback angle to the
most upright position, move the seat to
the rearmost position, and raise the
seat to the upper most position, even if
the “AIR BAG OFF” indicator light is
illuminated.
●Do not allow the child to lean his/her
head or any part of his/her body
against the door or th e area of the seat,
front or rear pillars, or roof side rails
from which the SRS side airbags or
SRS curtain shield airbags deploy even
if the child is seated in the child
restraint system. It is dangerous if the
SRS side and curtain shield airbags
inflate, and the impact could cause
death or serious injury to the child.
●When a booster seat is installed,
always ensure that th e shoulder belt is
positioned across the center of the
child’s shoulder. The belt should be
kept away from the child’s neck, but
not so that it could fall off the child’s
shoulder.
●Use child restraint system suitable to
the age and size of the child and install
it to the rear seat.
●If the driver’s seat interferes with the
child restraint system and prevents it
from being attached correctly, attach
the child restraint system to the
right-hand rear seat.
●Adjust the front passe nger seat so that
it does not interfere with the child
restraint system.

69
2
2
Vehicle status information and indicators
Vehicle status informationand indicators
.2-1. Instrument cluster
Warning lights and indicators........................................................... 70
Gauges and meters (except F SPORT models) ........................ 75
Gauges and meters (F SPORT models) .......................................... 78
Multi-information display.......... 82
Head-up display ........................... 89
Fuel consumption information ........................................................... 93

702-1. Instrument cluster
2-1.Instrument cluster
For the purpose of explanation, the following illustrations display all warning lights
and indicators illuminated.
Except F SPORT models
F SPORT models
Warning lights and indicators
The warning lights and indicators on th e instrument cluster, center panel and
outside rear view mirrors inform the driver of the status of the vehicle’s various
systems.
Warning lights and indicators displayed on the instrument cluster

712-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle’s sys-
tems.
*1: These lights come on when the engine switch is turned to IGNITION ON
mode to indicate that a system check is
Warning lights
(U.S.A.)
Brake system warning light*1
(  P.427)
(red)
(Canada)
Brake system warning light*1
(  P.427)
(yellow)
Brake system warning light*1
(  P.427)
High coolant temperature
warning light
*2 (  P.427)
Charging system warning
light
*2 (  P.428)
Low engine oil pressure warn-
ing light
*2 (  P.428)
(U.S.A.)
Malfunction indicator lamp*1
(  P.428)
(Canada)
Malfunction indicator lamp*1
(  P.428)
SRS warning light
*1 (  P.428)
Pop Up Hood warning light
*1
(  P.429)
(U.S.A.)
ABS warning light*1 ( P.429)
(Canada)
ABS warning light*1 ( P.429)
Inappropriate pedal operation
warning light
*2 (  P.429)
(red)
Electric power steering system
warning light
*1 ( P.430)
(yellow)
Electric power st eering system
warning light
*1 (  P.430)
Low fuel level warning light
(  P.430)
Driver’s and front passenger’s
seat belt re minder light
(  P.430)
Rear passengers’ seat
belt reminder lights
(except F SPORT mod-
els) ( P.431)
Rear passengers’ seat belt
reminder lights (F SPORT mod-
els) ( P.431)
Tire pressure warning light
*1
(  P.431)
(orange)
LTA indicator ( P.431)
(flashes)
RCD OFF indicator (if
equipped) ( P.432)
(flashes or
illuminates)PCS warning light*1 (  P.432)
Slip indicator
*1 (  P.432)
(flashes)
(U.S.A.)
Parking brake indicator
(  P.433)
(flashes)
(Canada)
Parking brake indicator
(  P.433)
(flashes)
Brake hold operated indicator*1
(  P.433)

722-1. Instrument cluster
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if the lights do not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light illuminates on the multi-infor-mation display.
The indicators inform the driver of the
operating state of the vehicle’s various
systems.
WARNING
■If a safety system warning light does
not come on
Should a safety system light such as the
ABS and SRS warning light not come on
when you start the engine, this could
mean that these systems are not available
to help protect you in an accident, which
could result in death or serious injury.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs.
Indicators
Turn signal indicator ( P.185)
(U.S.A.)
Headlight indicator ( P.190)
(Canada)
Tail light indicator ( P.190)
Headlight high beam indicator
(  P.192)
AHB indicator ( P.193)
PCS warning light
*1, 2 (  P.218,
230)
Cruise control indicator
(  P.254)
Dynamic radar cruise control
indicator ( P.254)
Cruise control “SET” indicator
(  P.254)
(white)
LTA indicator ( P.244)
(green)
LTA indicator ( P.244)
(orange)
(flashes)LTA indicator ( P.244)
BSM outside rear view mirror
indicators
*1, 3 (if equipped)
(  P.264, 277)
BSM OFF indicator
*1, 2 (if
equipped) ( P.264)
Intuitive parking assist OFF indi-
cator
*1, 2(if equipped)
(  P.273)
RCTA OFF indicator
*1, 2 (if
equipped) ( P.277)
RCD OFF indicator
*2 (if
equipped) ( P.281)
PKSB OFF indicator
*1, 2 (if
equipped) ( P.285)
(flashes)
Slip indicator*1 ( P.305)
VSC OFF indicator
*1, 2
(  P.306)
High mode indicator (if
equipped) ( P.302)
Smart access system with
push-button start indicator
*4
(  P.174)
(U.S.A.)
Parking brake indicator
( P.186)