2018 LEXUS RCF tire pressure reset

22 Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Driving position memory switches
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 166
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 147
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4141
2
3
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5
6

110 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
G-force (if equipped)
* 1

Displays lateral G-forces on the vehicle.
Acceleration G-force on the
vehicle
Current G-force value (analyzed
value of front/rear and left/right
G-forces)
Record of the maximum G-forces This display is intended for use as a guideline. Depending on factors 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 to reset the record. ●
Peak hold function
If lateral G-forces of 0.5 G or grea ter are generated, the G-force value
display will turn amber and be held for 2 seconds.
* 1
: For F SPORT models, this item is not ava ilable when the main meter is in the center
position.■
Tire pressure
 P. 413■
Vehicle sway warning
* 1
Detects the sway of the vehicle within a lane, which is often associated with a
decrease in the driver’s at tention level, and displays the decrease in attention
using a bar display.
The shorter the bar length, the more the driver may need to rest. This display is a part of the LDA (Lane Departure Alert with steering control) sys-
tem. The display is enabled when the op erating conditions of the vehicle sway
warning are met. (  P. 261)
* 1
: For F SPORT models, this item is not ava ilable when the main meter is in the center
position.
■
Gear positions
Displays the current gear position when the shift lever is in D or M.1
2
3

1232. Instrument cluster
2
Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)* 1
:Resetting:  P. 119
* 2
: Use the displayed fuel consumption as a reference.
* 3
: When only a small amount of fuel is added to the tank, the display may not be
updated.
When refueling, turn the engine switch off. If the vehicle is refueled without turning the
engine switch off, the display may not be updated.
* 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.■
Tire pressure
 P. 413■
Gear positions
Displays the current gear position when the shift lever is in D or M.■
Vehicle sway warning
Detects the sway of the vehicle within a lane, which is often associated with a
decrease in the driver’s at tention level, and displays the decrease in attention
using a bar display.
The shorter the bar length, the more the driver may need to rest. This display is a part of the LDA (Lane Departure Alert with steering control) sys-
tem. The display is enabled when the op erating conditions of the vehicle sway
warning are met. (  P. 261)■
Units
The units of measure used can be changed while driving. Unlike the units setting performed on , the units setting performed on can
be changed while driving.■
Blank (No items)
Displays no drive information contents.

124 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Lap timer
Measures and displays current la p time and previous lap times●
Reading the display
Measured lap times since the timer was last reset are displayed as follows:
• Content display area
Total lap time
Past lap times
Fastest lap (marked with a star)
• Sub-content display area
Current lap time
Most recent lap time
●
Operating the meter control switches
Press: Start/stop lap timer
Press and hold: Reset
: Mark off one lap
: Change displayed
contentWhile a lap time is being mea-
sured, the display can be changed
to show the following content:
• Torque distribution (if equipped)
•G-force
• Tire pressure
• Rear wing position●
Resetting/saving measured lap times
After stopping the lap timer, press and hold .
When a confirmation screen is displa yed, select to reset/save the mea-
sured lap times. When saved, the lap time data will be displayed on the history screen. (  P. 125)“F” content
Content display area
Sub-content display area1
2
3
4
5
1
2

128 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)●
Switching the display
To switch to advanced display, press .
To return to normal display, press . ●
Resetting the record of maximum G-forces
With the record of maximum G-forces displayed, press and hold to
reset the display. ●
Peak hold function (advanced display only)
If lateral G-forces of 0.5 G or
greater are generated, the G-
force value displayed on the sub-
content display ar ea will turn yel-
low and be held for 3 seconds.■
Tire pressure
Displays the tire inflation pressure (  P. 413)Unlike the tire pressure display on the drive information menu, the tire inflation
pressure display of the “F” content menu can be displayed while lap time is being
measured.■
Rear wing position
Displays the raised/retracted state of the active rear wing

1332. Instrument cluster
2
Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
G-force display ●
The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline. ●
The steering amount, accelerator pedal input, and brake fluid pressure displays are dis-
abled until the engine has warmed up (the variable red zone of the tachometer has
retracted to 7300 rpm).
After the engine has warmed up, these displays will be enabled. ●
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 battery terminal is disconnected and reconnected, the steering amount display may
be disabled temporarily. Afte r driving the vehicle for a while , the display will be enabled.■
Suspension of the settings display
In the following situations, op eration of the settings disp lay will be temporarily sus-
pended. ●
When a warning message appears on the multi-information display●
When the vehicle begins to move ■
Tire pressure ●
It may take a few minutes to display the tire inflation pressure after the engine switch is
turned to IGNITION ON mode. It may also take a few minutes to display the tire infla-
tion 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. ■
When disconnecting and reco nnecting battery terminals
The following information data will be reset: ●
Drive information ●
Lap timer: Measured lap times, history ●
G-force: Record of the maximum G-forces■
Using the lap timer
If the engine is stopped while a lap is being timed, the lap timer will stop and the lap time
up to that point will be recorded. ■
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.

414 6-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the engine switch off.Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to th e specified cold tire inflation pressure
level. (  P. 548)Make sure to adjust the tire pressure to the specified cold tire inflation pressure
level. The tire pressure warning system will operate based on this pressure level.
Turn the engine switch to IGNITION ON mode.
Press and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes with the engine switch in IGNITION ON mode and
then turn the engine switch off.
◆ Registering ID codes
The tire pressure warning valve and tran smitter is equipped with a unique ID
code. When replacing a tire pressure warning valve and transmitter, it is nec-
essary to register the ID code. Have the ID code registered by your Lexus
dealer. 1
2
3
4
5

4176-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 6
Maintenance and care ■
Situations in which the tire pressure warning system may not operate properly ●
In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects th e radio wave signals is installed.
• If there is a lot of snow or ice on the vehi cle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extr emely higher than the specified level.
• If tires not equipped with tire pressure warning valves and tr ansmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered
in the tire pressure warning computer. ●
Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phon e or other wireless
communication device
If tire position information is not correctly displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions. ●
When the vehicle is parked, the time taken for the warning to start or go off could be
extended. ●
When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function. ■
The initialization operation ●
Make sure to carry out initialization afte r adjusting the tire inflation pressure.
Also, make sure the tires are cold before carryi ng out initialization or tire inflation pres-
sure adjustment. ●
If you have accidentally turned the engine swit ch off during initialization, it is not neces-
sary to press the reset switch again as initialization will re start automatically when the
engine switch has been turned to IG NITION ON mode for the next time.●
If you accidentally press the re set switch when initialization is not necessary, adjust the
tire inflation pressure to the specified leve l when the tires are co ld, and conduct initial-
ization again. ■
When initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases, the set-
tings have not been recorded and the system will not operate properly. If repeated
attempts to record tire inflation pressure settings are unsuccessful, have the vehicle
inspected by your Lexus dealer. ●
When operating the tire pres sure warning reset switch, th e tire pressure warning light
does not blink 3 times. ●
After carrying out the initializat ion procedure, the tire pressu re warning light blinks for 1
minute then stays on after driving for 20 minutes.