2021 LEXUS RX450h brake

681-4. Hybrid system
seats when the hybrid system starts or
stops.
●Relay operating sounds such as a snap or
soft clank will be emitted from the hybrid
battery (traction battery), behind the rear
seats, when the hybrid system is started
or stopped.
●Sounds from the hybrid system may be
heard when the back door is open.
●Sounds may be heard from the transmis-
sion when the gasoline engine starts or
stops, when driving at low speeds, or
during idling.
●Engine sounds may be heard when
accelerating sharply.
●Sounds may be heard due to regenera-
tive braking when the brake pedal is
depressed or as the accelerator pedal is
released.
●Vibration may be felt when the gasoline
engine starts or stops.
●Cooling fan sounds may be heard from
the air intake vents under the rear seats.
■Maintenance, repair, recycling, and dis-
posal
Contact your Lexus dealer regarding main-
tenance, repair, recycling and disposal. Do
not dispose of the vehicle yourself.
■Customization
Some functions can be customized.
(  P.480)
When driving with the gasoline engine
stopped, a sound, which changes in
accordance with the driving speed, will
be played in order to warn people
nearby of the vehicle’s approach. This
sound may be heard inside the vehicle.
The sound will stop when the vehicle
speed exceeds approximately 22 mph
(35 km/h).
■Acoustic Vehicle Alerting System
In the following cases, the Acoustic Vehicle
Alerting System may be difficult for sur-
rounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the Acoustic Vehicle Alerting Sys-
tem is installed on the fr ont of the vehicle, it
may be more difficult to hear from the rear
of the vehicle compared to the front.
Acoustic Vehicle Alerting Sys-
tem

701-4. Hybrid system
■Electromagnetic waves
●High voltage parts and cables on hybrid
vehicles incorporate electromagnetic
shielding, and therefore emit approxi-
mately the same amount of electromag-
netic waves as conventional gasoline
powered vehicles or home electronic
appliances.
●Your vehicle may cause sound interfer-
ence in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a
limited service life. The lifespan of the
hybrid battery (traction battery) can
change in accordance with driving style and
driving conditions.
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC
systems as well as a 12-volt system. DC
and AC high voltage is very dangerous
and can cause severe burns and electric
shock that may result in death or serious
injury.
●Never touch, disassemble, remove or
replace the high voltage parts, cables
or their connectors.
●The hybrid system will become hot
after starting as the system uses high
voltage. Be careful of both the high
voltage and the high temperature, and
always obey the warning labels
attached to the vehicle.
●Never try to open the service plug
access hole located under the rear
seat. The service plug is used only
when the vehicle is serviced and is
subject to high voltage.
■Road accident cautions
Observe the following precautions to
reduce the risk of de ath or serious injury:
●Pull your vehicle off the road, shift the
shift lever to P, apply the parking brake,
and turn the hybrid system off.
●Do not touch the high voltage parts,
cables and connectors.
●If electric wires are exposed inside or
outside your vehicle, an electric shock
may occur. Never touch exposed elec-
tric wires.
●If a fluid leak occurs, do not touch the
fluid as it may be st rong alkaline elec-
trolyte from the hybrid battery (trac-
tion battery). If it comes into contact
with your skin or eyes, wash it off
immediately with a large amount of
water or, if possible, boric acid solu-
tion. Seek immediate medical atten-
tion.
●If a fire occurs in the hybrid vehicle,
leave the vehicle as soon as possible.
Never use a fire extinguisher that is not
meant for electric fires. Using even a
small amount of water may be danger-
ous.

792-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle’s sys-
tems.
Warning lights
(U.S.A.)
Brake system warning light*1
(  P.418)
(red)
(Canada)
Brake system warning light*1
(  P.418)
(yellow)
Brake system warning light*1
(  P.418)
High coolant temperature
warning light
*2 (  P.418)
Hybrid system overheat warn-
ing light
*2 (  P.419)
Charging system warning
light
*3 (  P.419)
Low engine oil pressure warn-
ing light
*2 (  P.419)
(U.S.A.)
Malfunction indicator lamp*1
(  P.419)
(Canada)
Malfunction indicator lamp*1
(  P.419)
SRS warning light
*1 (  P.420)
(U.S.A.)
ABS warning light*1 ( P.420)
(Canada)
ABS warning light*1 ( P.420)
Brake Override System warn-
ing light/Drive-Start Control
warning light
*2 (  P.420)
(red)
Electric power steering system
warning light
*1 ( P.421)
(yellow)
Electric power steering system
warning light
*1 ( P.421)
Low fuel level warning light
(  P.421)
Driver’s and front passenger’s
seat belt reminder light
(  P.421)
(RX450h)
Rear passengers’ seat
belt reminder light
*4
(  P.422)
(RX450hL)
Rear passengers’ seat
belt reminder
light
*4( P.422)
Tire pressure warning light
*1
(  P.422)
(orange)
LTA indicator ( P.422)
(flashes)
Intuitive parking assist OFF indi-
cator
*1 (if equipped) ( P.423)
(flashes)
RCTA OFF indicator*1 (if
equipped) ( P.423)
(flashes)
PKSB OFF indicator*1 (if
equipped) ( P.423)
(flashes or
illuminates)PCS warning light*1 (  P.424)
Slip indicator
*1 (  P.424)
(flashes)
(U.S.A.)
Parking brake indicator
(  P.424)

802-1. Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indi-
cate that a system check is being per-
formed. They will turn off after the
hybrid system is on, or after a few sec-
onds. There may be a malfunction in a
system if a light does not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light illuminates on the multi-infor-mation display.
*3: Except F SPORT models: This light illu-minates on the multi-information dis-
play.
F SPORT models: This light illuminates
on the meter.
*4: This light illuminates on the center panel.
The indicators inform the driver of the operating state of the vehicle’s various
systems.
(flashes)
(Canada)
Parking brake indicator
(  P.424)
(flashes)
Brake hold operated indicator*1
(  P.425)
Master warning light
*1
(  P.425)
WARNING
■If a safety system warning 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 pr otect you in an acci-
dent, which could result in death or seri-
ous injury. Have the vehicle inspected by
your Lexus dealer immediately if this
occurs.
Indicators
Turn signal indicator ( P.194)
(U.S.A.)
Headlight indicator ( P.200)
(Canada)
Tail light indicator ( P.200)
Headlight high beam indicator
(  P.201)
Automatic High Beam indica-
tor
*1 (  P.203)
Fog light indicator (if equipped)
(  P.206)
PCS warning light
*1, 2
(  P.222)
Cruise control indicator
(  P.245)
Dynamic radar cruise control
indicator ( P.238)
Cruise control “SET” indicator
(  P.238)
(white)
LTA indicator ( P.231)
(green)
LTA indicator ( P.231)
(orange)
(flashes)LTA indicator ( P.231)
BSM outside rear view mirror
indicators
*3, 4 (if equipped)
(  P.247, 261)
BSM indicator (if equipped)
(  P.247)

812-1. Instrument cluster
2
Vehicle status information and indicators
Drive mode indicators
Except F SPORT models
F SPORT models
*1: These lights turn on when the power
switch is turned to ON mode to indi-
cate that a system check is being per-
formed. They will turn off after the
hybrid system is on, or after a few sec-
onds. There may be a malfunction in a
system if a light does not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light comes on when the system is turned off.
*3: In order to confirm operation, the BSM outside rear view mirror indicators illu-
minate in the following situations:
 When the BSM function is enabled
on of the multi-information dis-
play, the power switch is turned to
ON mode.
 When the power switch is in ON
mode, the BSM function is enabled
on of the multi-information dis-
Intuitive parking assist OFF indi-
cator
*1, 2 (if equipped)
(  P.256)
RCTA OFF indicator
*1, 2 (if
equipped) ( P.261)
PKSB OFF indicator
*1, 2 (if
equipped) ( P.266)
(flashes)
Slip indicator*1 ( P.284)
VSC OFF indicator
*1, 2
(  P.285)
Smart access system with
push-button start indicator
*5
(  P.184)
“READY” indicator ( P.184)
EV drive mode indicator
(  P.189)
(U.S.A.)
Parking brake indicator
( P.195)
(Canada)
Parking brake indicator
( P.195)
Brake hold standby indicator
*1
(  P.198)
Brake hold operated indicator
*1
(  P.198)
EV indicator ( P.67)
Low outside temperature indi-
cator
*6 (  P.83)
Security indicator
*7 (  P.73,
75)
(U.S.A.)
“AIR BAG ON/OFF”
indicator
*1, 7 (  P.40)
(Canada)
“AIR BAG ON/OFF”
indicator
*1, 7 ( P.40)
Eco drive mode indicator
( P.281)
Sport mode indicator (if
equipped) ( P.281)
Customize mode indicator
(  P.281)
Eco drive mode indicator
(  P.281)
Sport mode indicator (if
equipped) ( P.281)
Sport S mode indicator
(  P.281)
Sport S+ mode indicator
(  P.281)

912-1. Instrument cluster
2
Vehicle status information and indicators
*4: This distance is computed based on your average fuel consumption. As a
result, the actual distance that can be
driven may differ from that displayed.
■Energy monitor
 P.99
■AWD Control
Displays the driving force applied to
each wheel using segments.
The greater the number of segments
displayed, the greater the driving force
applied.
■G-force (if equipped)
Displays lateral G-forces on the vehi-
cle. Also displays, around the periph-
ery of the G-force display, the left and
right steering amount, accelerator
pedal input, and brake fluid pressure.
Acceleration G-force on the vehi-
cle
Current G-force value (analyzed
value of front/rear and left/right
G-forces)
Record of the maximum G-forces
Accelerator pedal input
Brake fluid pressure
Steering amount
This display is intended for use as a guide- line. Depending on fact
ors such as the road
surface condition, temperature and vehicle
speed, the display may not show the actual
condition of the vehicle.
 Resetting the record of maximum
G-forces
Press and hold of the meter control
switch to reset the record.
Peak hold function
If lateral G-forces of 0.5 G or greater are
generated, the G-forc e value display will
turn amber and be held for 2 seconds.
■Tire pressure
 P.382
■Units (if equipped)
The units of measure used can be
changed while driving.
Unlike the units sett ing performed on the
settings display, th e units setting per-
formed on the drive information display
can be changed while driving.
■Blank (No items)
Displays no drive information contents.
■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 condi-
tions, 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 discon-
nected and reconnect ed, the steering
amount display may be disabled tempo-
rarily. After driving th e vehicle for a while,
the display will be enabled.
■Tire pressure
• It may take a few minutes to display the tire inflation pressu re after the power
A
B
C
D
E
F

952-1. Instrument cluster
2
Vehicle status information and indicators
*:If equipped
Illustrations used in this text are intended as examples, and may differ from the image that is
actually displayed by the head-up display.
Navigation system-linked display area (if equipped) ( P.98)
Message display area ( P.98)
Displays the following items:
• Warning/Message (if equipped)
• Audio system operation status
• Outside temperature
Displays the following item, which ar e linked to the navigation system:
•Street name
/ icon ( P.97)
Driving assist system status display area (if equipped)
Displays the operational stat us of the following systems:
• Dynamic radar cruise control with full-speed range ( P.238)
• LTA (Lane Tracing Assist) ( P.227)
• Intuitive parking assist ( P.255)
• Parking Support Brake function (for static objects) (P.271)
Displayed content is the same as that displaye d on the multi-information display. For details,
Head-up display*
The head-up display is linked to the meters and navigation system (if equipped)
and projects a variety of information in front of the driver, such as the current
vehicle speed and route guidance to a set destination.
System components
A
B
C
D

982-1. Instrument cluster
played on the multi-information display.
( P.428)
: Information icon
Displayed when a suggestion/advice
pop-up display is displayed on the
multi-information display. ( P.93)
Displays the following items in the
appropriate situation:
■Warning/Message (if equipped)
Displays the following system warn-
ing/messages:
 PCS (Pre-Collision System)
( P.220)
 Parking Support Brake function (for
static objects) ( P.271)
 Dynamic radar cruise control with
full-speed range ( P.238)
 Brake Override System ( P.164)
 Drive-Start Control ( P.165)
Details of content displayed on the
head-up display may differ from that dis-
played on the multi-information display. For
details, refer to the explanation of each sys-
tem.
■Audio system operation status
Displayed when the audio system is
operated.
■Outside temperature
Displayed in the following situations:
 When the power switch is turned to
ON mode
 When the low outside temperature
indicator is flashing Displayed content is the same as that
displayed on the multi-information dis-
play. For details, refer to the explana-
tion of the outside temperature display
on the multi-information display.
(
P.86)
Displays the following items which are
linked to the navigation system:
■Street name
The name of the street that the vehicle
is currently driving on is displayed on
the bottom of the display area.
When the navigation system is per-
forming route guidance, the name of
the next street will be displayed on the
top of the display area.
■Street name display (vehicles with a nav-
igation system)
Only street names which are included in the
map data will be displayed.
Displays the following items which are
linked to the navigation system:
■Route guidance to destination
Displayed when the navigation system
is performing route guidance. When
approaching an intersection, an arrow
will be displayed to indicate the sug-
gested direction of travel.
■Compass
Displays the direction of travel.
Message display area
Navigation system-linked dis-
play area (if equipped)