2021 LEXUS RX450h tire pressure reset

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

3866-3. Do-it-yourself maintenance
tings” screen and then press the .
6 Press or of the meter con-
trol switch, select the “TPMS”
screen and then press and hold the
until the tire pressure warn-
ing light blinks slowly 3 times.
“- -” will be displayed for inflation pressure
of each tire on the multi-information dis-
play while the tire pr essure warning system
determines the position of each tire.
7 Drive the vehicle at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes
until the inflation pressure of each
tire is displayed on the multi-infor-
mation display.
When position of each tire is determined,
the inflation pressure of each tire will be
displayed on the multi-information display.
If tire inflation pr essure becomes low
before the inflation pr essure is displayed,
the tire pressure warning light will come
on.
Depending on the vehicle and driving con-
ditions, initialization may take up to
approximately 1 hour to complete.
■Initializing the tire pressure warning sys-
tem
Initialize the system with the tire inflation
pressure adjusted to the specified level.
■If you press the tire pressure warning
reset switch accidentally
If initialization is perf ormed, adjust the tire
inflation pressure to the specified level and
initialize the tire pressure warning system
again.
■Initialization procedure
●Make sure to carry out initialization after
adjusting the tire inflation pressure.
Also, make sure the tires are cold before
carrying out initialization or tire inflation
pressure adjustment.
●If you have accidentally turned the power
switch off during initialization, it is not
necessary to press the reset switch again
as initialization will restart automatically
when the power switch has been turned
to ON mode for the next time.
●If you accidentally press the reset switch
when initialization is not necessary, adjust
the tire inflation pressure to the specified
level when the tires are cold, and conduct
initialization again.
●While the position of each tire is being
determined and the inflation pressures
are not being displayed on the
multi-information display, if the inflation
pressure of a tire drops, the tire pressure
warning light will come on.
■When initialization of the tire pressure
warning system has failed
Initialization may take longer to complete if
the vehicle is driven on an unpaved road.
When performing initia lization, drive on a
paved road if possible. Depending on the
driving environment and condition of the
tires, initialization will be completed in
approximately 10 to 30 minutes. If initializa-
tion is not complete after driving approxi-
mately 10 to 30 minutes, continue driving
for a while.
If the inflation pressure of each tire is not
displayed after driving for approximately 1
hour, perform the following procedure.
●Park the vehicle in a safe place for
approximately 20 minutes. Then drive
straight (with occasional left and right
turns) at approximately 25 mph (40
km/h) or more for approximately 10 to
30 minutes.

3876-3. Do-it-yourself maintenance
6
Maintenance and care
However, in the following situations, the tire
inflation pressure will not be recorded and
the system will not operate properly. Per-
form initialization again.
●When operating the tire pressure warn-
ing reset switch, the tire pressure warning
light does not blink 3 times.
●After performing init ialization, the tire
pressure warning light blinks for 1 minute
then stays on while driving.
If the inflation pressure of each tire is still not
displayed, have the vehicle inspected by
your Lexus dealer.
The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
Have the ID code registered by your
Lexus dealer. The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(
P.460)
Tire valve
Tire pressure gauge
WARNING
■When initializing the tire pressure
warning system
Do not initializing tire inflation pressure
without first adjusting the tire inflation
pressure to the spec ified level. Other-
wise, the tire pressure warning light may
not come on even if the tire inflation pres-
sure is low, or it may come on when the
tire inflation pressure is actually normal.
Registering ID codes
Tire inflation pressure
Checking the specified tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A
B

523Alphabetical Index
Meter control switches .............................. 89
Power easy access system ..................... 142
Steering wheel position memory ........ 142
Stop lights Replacing light bulbs............................... 400
Storage features .......................................... 324
Stuck If the vehicle becomes stuck................ 457
Suggestion function....................................... 93
Sun visors ........................................................ 344
Sunshade Panoramic moon roof.............................. 158
Roof ................................................................... 156
Switches Automatic High Beam switch ............. 203
Brake Hold switch ..................................... 198
Door lock switches ........................................ 111
Driving mode select switch ....................281
Driving position memory switches ..... 142
Dynamic radar cruise control with full-speed range switch ....................... 238
Electronic sunshade switch ................... 158
Emergency flashers switch .................... 410
EV drive mode switch ............................. 189
Fog light switch ...........................................206
Garage door opener switches .......... 346
Heated steering wheel switch.............. 318
HUD (Head-up display) switch............ 96
Ignition switch............................................... 184
Instrument panel light control switches ............................................................................ 87
Intuitive parking assist switch............... 256
Light switches ..............................................200
LTA (Lane Tracing Assist) switch....... 231
Meter control switches .............................. 89
Moon roof switches .................................. 155
“ODO TRIP” switch .................................... 87
Outside rear view mirror switches .... 150
Paddle shift switches ....................... 192, 193
Panoramic moon roof switches .......... 158
Parking brake switch ................................ 195
PCS OFF switch .........................................222 PKSB (Parking Support Brake) switch
..........................................................................266
Power switch................................................. 184
Power window switches ......................... 153
RCTA switch ..................................................261
Rear window and outside rear view mir- ror defoggers switch ........................... 304
Seat heater switches.................................. 318
Seat ventilator switches ........................... 318
“SOS” button...................................................60
Tilt and telescopic steering control switch ........................................................................... 148
Tire pressure warning reset switch.. 385
Vehicle-to-vehicle distance switch...238
VSC OFF switch ...................................... 285
Window lock switch.................................. 155
Windshield wiper and washer switch ......................................................................... 206
Windshield wiper de-icer switch...... 309
T
Tachometer....................................................... 83 Rev indicator ...................................................85
Rev peak............................................................85
Tail lights Light switch .................................................. 200
Replacing light bulbs ............................... 400
The Secondary Collision Brake ............ 284
Theft deterrent system Alarm................................................................... 75
Immobilizer system ...................................... 73
Tire inflation pressure Maintenance data ......................................466
Tire inflation pressure display function..........................................................................382
Warning light ............................................... 422
Tire information .............................................. 471 Glossary ......................................................... 475
Size .................................................................... 473
Tire identification number...................... 472
Uniform Tire Quality Grading ............ 473
Tire pressure display ... ............................... 382