2021 TOYOTA PRIUS maintenance reset

PRIUS_OM_OM47E09U_(U)
1052. Instrument cluster
2
Instrument cluster
■When disconnecting and reconnecting 12-volt battery terminals
The settings of the clock will be reset.
■ Calendar settings
●Until the calendar settings are set, the check screen is displa yed every time
the power switch is turned to ON mode.
● After the calendar information is set, it can be changed in the “Meter Cus-
tomize” settings. ( P. 153)
■ When the menu screen on the navi gation system is operated (vehicles
with 11.6-inch display)
■ Liquid crystal display
Small spots or light spots may appear on the display. This phen omenon is
characteristic of liquid crystal displays, and there is no prob lem continuing to
use the display.
■ Pop-up display
Some functions, such as the driving mode select switch and air conditioning
system, are operation-linked and display pop-up screens on the multi-infor-
mation display. If the pop-up screens of these functions are not desired, they
can be turned off in the “Meter Customize” settings. ( P. 153)
If calendar recording is interrupted due to
replacement of the 12-volt battery or 12-
volt battery discharge, etc., when the
power switch is turned to ON mode after
maintenance, the calendar settings check
screen is automatically displayed on the
multi-information display.
●
If date information is not set, the fuel
consumption record cannot be stored
correctly. When the calendar settings
check screen is displayed, make sure to
always set the settings. ( P. 151)
A pop-up display of the menu screen icon
is displayed on the multi-information dis-
play.
*
*
: The pop-up display on the navigation
system can be turned off in the “Meter
Customize” settings. ( P. 153)

506
PRIUS_OM_OM47E09U_(U)
6-2. Maintenance
■Repair and replacement
It is recommended that genuine Toyota parts be used for repairs to ensure
performance of each system. If non-Toyota parts are used in rep lacement or if
a repair shop other than a Toyota dealer performs repairs, conf irm the war-
ranty coverage.
■ Resetting the message indicating ma intenance is required (U.S.A. only)
After the required maintenance is preformed according to the ma intenance
schedule, please reset the message.
To reset the message, follow the procedures described below:
While the hybrid system is operating, switch the multi-informat ion display to
the screen. ( P. 151)
Press
or of the meter control switches, select (“Vehicle
Settings”), and then press .
Press
or of the meter control switches, select “Maintenance Sys-
tem”, and then press .
Press
or of the meter control switches, select “Oil Maintenance”,
and then press .
Press
or of the meter control switches, select “Yes”, and then press
.
■ Allow inspection and repairs to be performed by a Toyota dealer
●Toyota technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about th e operation of
all systems on your vehicle.
● Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty coverage. If any problem should arise
while your vehicle is under warranty, your Toyota dealer will p romptly take
care of it.
A message will be displayed when the
reset procedure has been completed.
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538
PRIUS_OM_OM47E09U_(U)
6-3. Do-it-yourself maintenance
■Situations in which the tire pressure warning system may not oper-
ate properly
●In the following cases, the tire pressure warning system may no t operate
properly.
• If non-genuine Toyota wheels are used.
• When a replacement tire is used, the system may not operate cor-
rectly due to the structure of the replacement tire.
• A tire has been replac ed with a tire that is not of the specif ied size.
• Tire chains etc . are equipped.
• An auxiliary-supported ru n-flat tire is equipped.
• If a window tint that affects the radio wave signals is instal led.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the sp ecified
level.
• If wheel without the tire pressure warning valve and transmitt er is
used.
• If the ID code on the tire pressure warning valves and transmi tters 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 stat ion, large
display, airport or other facilit y that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication device
●When the vehicle is parked, the time taken for the warning to s tart 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 initializ ation after adjusting the tire inflation pres-
sure.
Also, make sure the tires are co ld before carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the power switch off during ini tialization,
it is not necessary to press the reset swit ch 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 neces-
sary, adjust the tire inflation pressure to the specified level when the
tires are cold, and cond uct initialization again.

6097-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)
7
When trouble arises
■If “Radar Cruise Control Unavailable See Owner’s Manual” is sho wn
The dynamic radar cruise control with full-speed range system is suspended
temporarily or until the problem shown in the message is resolv ed. (causes
and coping methods: P. 294)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control with full-speed range system c annot be
used temporarily. Use the system when it becomes available agai n.
■ If “Maintenance Required Soon” is displayed (U.S.A. only)
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message aft er the main-
tenance is performed. ( P. 506)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■ If “Maintenance Required Visit Your Dealer” is displayed (U.S.A . only)
Indicates that all maintenance is required to correspond to the driven distance
on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after the message has been
reset. (The indicator will not work properly unless the message has been
reset.)
Perform the necessary maintenance. Please reset the message aft er the
maintenance is performed. ( P. 506)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■ If the shift position cannot be changed or the power switch is turned to
ACCESSORY mode even if trying to turn the power switch off when a
warning message is shown
If the 12-volt battery is discharged or the shift control syste m is malfunction-
ing, the followings may occur.
● The shift position may not be changed to P.
When parking, stop the vehicle on level ground and apply the pa rking brake
firmly.
● The hybrid system may not start.
● The power switch may be turned to ACCESSORY mode even if trying to
turn the power switch off.
In this case, the power switch may be turned off after applying the parking
brake.
● The automatic P position selection function ( P. 258) may not operate.
Before turning the power switch off, be sure to press the P pos ition switch
and check that the shift position is in P by the shift position indicator or P
position switch indicator.

PRIUS_OM_OM47E09U_(U)
6998-2. Customization
8
Vehicle specifications
■Illumination (P. 4 5 8 )
*: If equipped
■
Seat belt reminder ( P. 597)
■Maintenance system
FunctionDefault
settingCustomized setting
Time elapsed before the inte-
rior lights turn off 15 secondsOff
–OO
7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff––O
Operation when the doors are
unlockedOnOff––O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff––O
Footwell lighting*OnOff––O
Interior lights illumination con-
trolOnOff––O
123
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff––O
123
Oil Maintenance
(U.S.A. only)Resetting the message indicating maintenance
is required: P. 506
Tire pressure warning
systemInitializing the tire p ressure warning system:
 P. 534

735Alphabetical index
PRIUS_OM_OM47E09U_(U)
Resetting the message indicating maintenance is
required .................................. 506
Road accident cautions ............ 92
Road Sign Assist (RSA) .......... 322
RSA (Road Sign Assist) .......... 322
S-APGS (Simple Advanced Parking Guidance
System) .................................. 386
S-FLOW (Front seat concentrated airflow
mode) ............................. 438, 448
Safety Connect .......................... 76
Seat back pockets ................... 466
Seat belts.................................... 30 Adjusting the seat belt ............ 31
Automatic Locking Retractor (ALR) .................................... 31
Child restra int system
installation ............................ 63
Cleaning and maintaining
the seat belt ........................ 503
Emergency Locking Retractor (ELR) .................................... 31
How to wear your seat belt ..... 30
How your child should wear
the seat belt .......................... 31
Pregnant women, proper
seat belt use ......................... 33
Reminder light and buzzer .... 595
Seat belt extender................... 32
Seat belt instructions for Canadian owners ............... 705
Seat belt pretensioners ........... 31
SRS warning light ................. 593
Seat heaters ............................. 456
Seating capacity ...................... 242 Seats ................................. 204, 206
Adjustment............................ 204
Adjustment precautions ........ 205
Armrest ................................. 486
Child seats/child restraint
system installation . ............... 59
Cleaning ............................... 502
Front seats............................ 204
Head restraint ....................... 209
Properly sitting in the seat ...... 28
Rear seats ............................ 206
Seat back pocket .................. 466
Seat heaters ......................... 456
Sensor
AHB (Automatic High Beam)................................. 268
Automatic headlight
system .......... ...................... 266
BSM (Blind Spot Monitor) ..... 353
Door handle .......................... 185
Front camera ........................ 289
Inside rear view mirror .......... 215
Intuitive parking assist .......... 362
LTA (Lane Tracing Assist) .... 307
Parking Support Brake function............................... 375
Radar sensor ........................ 289
Rain-sensing windshield
wipers ................................. 279
RCTA (Rear Cross Traffic
Alert function) ..................... 353
S-APGS (Simple Advanced Parking Guidance
System) .............................. 415
Service reminder indicators ... 107
Shift lever ................................. 255
Shift lever light ........................ 458
Side airbags ............................... 35
Side doors ................................ 185
S
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.