warning light LEXUS RX450h 2018 Owner's Manual

90
RX450h_RX450hL _U_OM48F85U2. Instrument cluster 
Except F SPORT models 
F SPORT models
The units used on the meter and some indicators may differ depending on the target
region.Warning lights and indicators The warning lights and indicators on th e instrument cluster, center panel and
outside rear view mirrors inform the driv er of the status of the vehicle’s vari-
ous systems.
For the purpose of explanation, the following illustrations display all warning
lights and indicators illuminated.

912. Instrument cluster
2
Instrument cluster
RX450h_RX450hL _U_OM48F85UWarning lights inform the driver of malfun ctions in any of the vehicle’s systems.
Warning lights * 1
(U.S.A.)
Brake system warning light
( → P. 660) (U.S.A.)
Parking brake indicator
( → P. 661)
* 1
(Canada)
Brake system warning light
( → P. 660) (Canada)
Parking brake indicator
( → P. 661)
* 1
Brake system warning light
( → P. 660)
* 1, 2
Brake hold operated
indicator ( → P. 661)
* 1
(if equipped)
Charging system warning
light ( → P. 660) * 1
Electric power steering
system warning light
( → P. 661)
* 1
(U.S.A.)
Malfunction indicator lamp
( → P. 660) * 1
Electric power steering
system warning light
( → P. 661)
* 1
(Canada)
Malfunction indicator lamp
( → P. 660) LKA indicator ( → P. 661)
* 1
SRS warning light
( → P. 660) * 1
Slip indicator ( → P. 661)
* 1
(U.S.A.)
ABS warning light
( → P. 661) * 1, 3
PCS warning light
( → P. 662)
* 1
(Canada) ABS warning light
( → P. 661) * 1, 2
(if equipped)ICS OFF indicator
( → P. 662)

92 2. Instrument cluster
RX450h_RX450hL _U_OM48F85U* 1
: These lights turn on when the power switch is turned to ON mode to indicate that a
system check is being performe d. They will turn off after the hybrid system is on, or
after a few seconds. There ma y be a malfunction in a system if a light does not come
on, or turn off. Have the vehicl e inspected by your Lexus dealer.
* 2
: This light flashes to indicate a malfunction.
* 3
: This light flashes or illumina tes to indicate a malfunction.
* 4
: This light illuminates on the center panel.
* 5
:RX450h
* 6
:RX450hL
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems. Low fuel level warning light
( → P. 662)
* 4,6
Rear passengers’ seat
belt reminder light
( → P. 662)
Driver’s and front
passenger’s seat belt
reminder light ( → P. 662)
* 1
Tire pressure warning light
( → P. 662)
* 4, 5
Rear passengers’ seat
belt reminder light
( → P. 662)
* 1
Master warning light
( → P. 663)
Indicators Turn signal indicator
( → P. 252) Fog light indicator
( → P. 266)
(U.S.A.)
Headlight indicator
( → P. 258) Cruise control indicator
( → P. 306)
(Canada)
Tail light indicator
( → P. 258) Radar cruise control
indicator ( → P. 306)
Headlight high beam
indicator ( → P. 259) Cruise control “SET”
indicator ( → P. 306)
* 1
Automatic High Beam
indicator ( → P. 262) LKA indicator ( → P. 297)

932. Instrument cluster
2
Instrument cluster
RX450h_RX450hL _U_OM48F85U LKA indicator ( → P. 297) (U.S.A.)
Parking brake indicator
( → P. 253, 254)
* 4
LKA indicator ( → P. 297) (Canada)
Parking brake indicator
( → P. 253)(if equipped)
Intuitive parking assist
indicator ( → P. 332)
* 1
Brake hold standby
indicator ( → P. 256)
* 1, 5
(if equipped)
ICS OFF indicator
( → P. 345)
* 1
Brake hold operated
indicator ( → P. 256)
(if equipped)
“BSM” indicator ( → P. 319) EV indicator ( → P. 76)
(if equipped)
“RCTA” indicator
( → P. 319)
* 6
Security indicator
( → P. 83, 86)
* 2, 3
(if equipped)
BSM outside rear view
mirror indicators
( → P. 319) “READY” indicator
( → P. 239)
* 1, 4
Slip indicator ( → P. 384)
* 7
Low outside temperature
indicator ( → P. 96)
* 1, 5
VSC OFF indicator
( → P. 385) * 1, 6
(U.S.A.)
“AIR BAG ON/OFF”
indicator ( → P. 47)
* 1, 5
PCS warning light
( → P. 290) * 1, 6
(Canada)“AIR BAG ON/OFF”
indicator ( → P. 47)

952. Instrument cluster
2
Instrument cluster
RX450h_RX450hL _U_OM48F85U* 3
: This light illuminates on the outside rear view mirrors.
* 4
: This light flashes to indicate that the system is operating.
* 5
: The light comes on when the system is turned off.
* 6
: This light illuminates on the center panel.
* 7
: When the outside temperature is approximately 37 ° F (3 ° C) or lower, this indicator
will flash for approximately 10 seconds, then stay on.
WARNING ■
If a safety system warnin g light does not come on
Should a safety system light such as the ABS and SRS warning lights not come on when
you start the hybrid system, 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 vehi-
cle inspected by your Lexus dealer immediately if this occurs.

116 2. Instrument cluster
RX450h_RX450hL _U_OM48F85UDisplays suggestions to the driver in the following situations. To select a response
to a displayed suggestion, use the meter control switches. The suggestion function can be turned on/off. (Customizable features: → P. 737)■
Suggestion to enable the power back door
If the power back door system is disabled (setting on set to off) and the
power back door switch on the instru ment panel is operated, a suggestion
message will be displayed asking if yo u wish to enable the power back door
system. To enable the power back door system, select “Yes”. After enabling the power back door syst em, press the power back door switch
again to open or close the power back door.■
Suggestion to turn off the headlights
If the headlights are left on for a certai n amount of time af ter the power switch
has been turned off, a su ggestion message will be displayed asking if you wish
to turn the headlights off. To turn the headlights off, select “Yes”.If a front door is opened after the power switch is turned off, this suggestion mes-
sage will not be displayed.■
Background color of the indicator/shift posi tion display area (except F SPORT models)
The background color of the indicator/shift po sition display area is changed according to
the driving mode as follows ( → P. 379):●
Eco drive mode: Blue ●
Sport mode: Red ■
G-force display (if equipped) ●
The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline. ●
Depending on the vehicle usage conditions, the brake fluid pressure display may not
reach its maximum reading even though the brake pedal is fully depressed. ●
If a 12-volt battery terminal is disconnect ed and reconnected, the steering amount dis-
play may be disabled temporarily. After driv ing the vehicle for a while, the display will
be enabled. ■
Suspension of the settings display ●
Some settings cannot be changed while driv ing. When changing settings, park the
vehicle in a safe place. ●
If a warning message is displa yed, operation of the settin gs display will be suspended.Suggestion function

1172. Instrument cluster
2
Instrument cluster
RX450h_RX450hL _U_OM48F85U■
Tire pressure ●
It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON mode. It may also take a few minutes to display the tire inflation pressure
after inflation pressure has been adjusted.●
“---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions. ●
Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge. ■
Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.■
Customization
Some functions can be customized. ( → P. 108, 736)
WARNING ■
Caution for use while driving ●
When operating the multi-information display while driving, pay extra attention to the
safety of the area around the vehicle. ●
Do not look continuously at the multi-info rmation display while dr iving as you may fail
to see pedestrians, objects on the road, etc. ahead of the vehicle. ■
The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed.
For example, there is a lag between the dr iver’s shifting and the new gear number
appearing on the display. This lag could ca use the driver to downshift again, causing
rapid and excessive engine braking and possibly an accident resulting in death or
injury. ■
Cautions during setting up the display
As the hybrid system needs to be operating during setting up the display, ensure that
the vehicle is parked in a place with adequa te ventilation. In a closed area such as a
garage, exhaust gases including harmful carbon monoxide (CO) may collect and enter
the vehicle. This may lead to dea th or a serious health hazard.
NOTICE ■
While setting up the display
To prevent 12-volt battery discharge, ensure that the hybrid syst em is operating while
setting up the display features.

140 3-2. Opening, closing and locking the doors
RX450h_RX450hL _U_OM48F85U■
Switching the door unlock function
It is possible to set which doors the entry function unlock s using the wireless remote con-
trol.
Turn the power switch off.
When the indicator light on the key su rface is not on, press and hold , or
for approximately 5 seconds while pressing and holding .
The setting changes each time an operation is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds, and
repeat step .)
To prevent unintended triggering of the alarm, unlock the doors using the wireless
remote control and open and close a door once after the settings have been changed. (If
a door is not opened within 60 seconds af ter is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. ( → P. 86)■
Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked.
Depending on the force of the impact or the type of accident, however, the system may
not operate. ■
Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( → P. 692)■
Open door warning buzzer
If the vehicle speed reaches 3 mph (5 km/h), the master warning light flashes and a
buzzer sounds to indicate that door (s) or the hood in not fully closed.
The open door(s) or hood is displa yed on the multi-information display.1
2
2
Multi-information
display Unlocking function Beep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings onceHolding any of the passenger
door handles unlocks all the
doors.
Holding a door handle unlocks
all the doors. Exterior: Beeps twice
Interior: Pings once

1533-2. Opening, closing and locking the doors
3
Operation of each component
RX450h_RX450hL _U_OM48F85UWARNING ■
Operating the power back door
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resultin g in death or serious
injury. ●
Remove any heavy loads, such as snow an d ice, from the power back door before
opening it. Failure to do so may cause the power back door to suddenly shut again
after it is opened. ●
When opening or closing the power back d oor, thoroughly check to make sure the
surrounding area is safe. ●
If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close. ●
Use caution when opening or closing the power back door in windy weather as it may
move abruptly in strong wind.
●
Do not pull on the back door spindle ( → P. 156) to close the power back door, and
do not hang on the back door spindle.
Doing so may cause hands to be caught or the back door spindle to break, causing
an accident. ●
If a bicycle carrier or similar heavy object is attached to the power back door, it may
suddenly shut again after being opened, causing someone’s hands, arms, head or
neck to be caught and injured. When inst alling an accessory part to the power back
door, using a genuine Lexus part is recommended. ●
The power back door may suddenly shut if it is
not opened fully, while on a steep incline.
Make sure that the power back door is secure
before using the luggage compartment. ●
When closing the power back door, take
extra care to prevent your fingers, etc., from
being caught. ●
When closing the power back door, make
sure to press it lightly on its outer surface. If
the back door handle is used to fully close the
power back door, it may result in hands or
arms being caught.

154 3-2. Opening, closing and locking the doors
RX450h_RX450hL _U_OM48F85UWARNING ■
Back door closer
●
Use caution when using the back door closer as it still operates when the power back
door system is disabled. ■
Power back door
Observe the following precautions wh en operating the power back door.
Failure to do so may cause death or serious injury. ●
Check the safety of the surrounding area to make sure there are no obstacles or any-
thing that could cause any of yo ur belongings to get caught.●
If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close. ●
If the power back door system is disabled ( → P. 112) while the power back door is
operating, the power back door will stop operating. The power back door must then
be operated manually. Take extra care in th is situation, as the power back door may
open or close suddenly. ●
If the operating conditions of the power back door ( → P. 147) are no longer met, a
buzzer may sound and the power back door may stop opening or closing. The power
back door must then be operated manually. Ta ke extra care on an incline in this situa-
tion, as the power back door may move suddenly. ●
On an incline, the power back door may su ddenly shut after it opens. Make sure the
power back door is fully open and secure. ●
In the following situations, the power back door may detect an abnormality and auto-
matic operation may be stopped. In this case, the power back door must then be
operated manually. Take extra care in this situation, as the stopped power back door
may suddenly open or close, causing an accident.
• When the power back door contacts an obstacle
• When the 12-volt battery voltage suddenly drops, such as when the power switch
is turned to ON mode or the hybrid syst em is started during automatic operation●
In the event that the power back door is left
slightly open, the back door closer will auto-
matically close it to the fully closed position. It
takes several seconds before the back door
closer begins to operate. Be careful not to get
fingers caught or anything else in the power
back door, as this may cause bone fractures
or other serious injuries.