maintenance TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

PRIUS PRIME_OM_OM47D71U_(U)
Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Plug-in hybrid
systemPlug-in hybrid system features, charging method,
etc.
3Instrument
clusterHow to read the gauges and meters, the variety of
warning lights and indicators, etc.
4Operation of
each componentOpening and closing the doors and windows,
adjustment before driving, etc.
5DrivingOperations and advice which are necessary for
driving
6Interior featuresUsage of the interior features, etc.
7Maintenance
and careCaring for your vehicle and maintenance
procedures
8When trouble
arisesWhat to do in case of malfunction or emergency
9Vehicle
specificationsVehicle specifications, customizable features, etc.
10For ownersReporting safety defects for U.S. owners, and seat
belt, SRS airbag and headlight aim instructions for
Canadian owners
IndexSearch by symptom
Search alphabetically

5
1
9 8
7
6 4 3
2
PRIUS PRIME_OM_OM47D71U_(U)
10
5
6-4. Using the other interior
features
Other interior features ....... 553
• Sun visors ..................... 553
• Vanity mirrors................ 553
• Power outlets ................ 554
• USB charging ports....... 555
• Wireless charger ........... 557
• Armrest ......................... 566
• Coat hooks.................... 566
• Assist grips ................... 567
Garage door opener .......... 5687-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 576
Cleaning and protecting
the vehicle interior ........... 581
7-2. Maintenance
Maintenance
requirements ................... 587
General maintenance ........ 590
Emission inspection and
maintenance (I/M)
programs ......................... 593
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ...................... 594
Hood .................................. 597
Positioning a floor jack....... 599
Engine compartment ......... 600
Tires................................... 614
Tire inflation pressure ........ 623
Wheels............................... 626
Replacing the tire............... 629
Air conditioning filter .......... 640
Wiper insert
replacement..................... 644
Electronic key battery ........ 647
Checking and replacing
fuses ................................ 650
Headlight aim..................... 653
Light bulbs ......................... 655
7Maintenance and care

TABLE OF CONTENTS6
PRIUS PRIME_OM_OM47D71U_(U)8-1. Essential information
Emergency flashers .......... 664
If your vehicle has to
be stopped in an
emergency ...................... 665
If the vehicle is trapped
in rising water .................. 666
8-2. Steps to take in an
emergency
If your vehicle needs to
be towed ......................... 667
If you think something is
wrong .............................. 673
If a warning light turns on
or a warning buzzer
sounds ............................ 674
If a warning message is
displayed ......................... 684
If you have a flat tire .......... 692
If the hybrid system will
not start ........................... 709
If the electronic key does
not operate properly ........ 711
If the 12-volt battery is
discharged ...................... 715
If your vehicle overheats ... 721
If the vehicle becomes
stuck................................ 7269-1. Specifications
Maintenance data
(fuel, oil level, etc.) .......... 730
Fuel information ................. 739
Tire information.................. 742
9-2. Customization
Customizable features ....... 753
9-3. Initialization
Items to initialize ................ 765
Reporting safety defects
for U.S. owners ........................ 768
Seat belt instructions
for Canadian owners
(in French)................................ 769
SRS airbag instructions
for Canadian owners
(in French)................................ 771
Headlight aim instructions
for Canadian owners
(in French)................................ 780
8When trouble arises9Vehicle specifications
10For owners

831-4. Theft deterrent system
PRIUS PRIME_OM_OM47D71U_(U)
1
For safety and security
Immobilizer system
The indicator light flashes after
the power switch has been turned
off to indicate that the system is
operating.
The indicator light stops flashing
after the power switch has been
turned to ACCESSORY or ON
mode to indicate that the system
has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the system to malfunction
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4400030050004800570044004f004f004c0046000300520045[ject
●If the key is in close proximity to or touching a key registered to the security
system (key with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent
the hybrid system from starting if a key has not been previously
registered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This system is designed to help prevent vehicle theft but does not
guarantee absolute security against all vehicle thefts.

PRIUS PRIME_OM_OM47D71U_(U)
972-1. Plug-in hybrid system
2
Plug-in hybrid system
■When “Proximity Notification System Malfunction Visit Your Dealer” is
displayed on the multi-information display
The vehicle proximity notification system may be malfunctioning. Have the
vehicle inspected by your Toyota dealer immediately.
■Maintenance, repair, recycling, and disposal
Contact your Toyota dealer regarding maintenance, repair, recycling and dis-
posal. Do not dispose of the vehicle yourself.
WARNING
■When using the hybrid battery (traction battery) charge mode
Observe the following precautions when using the hybrid battery (traction
battery) charge mode while parking.
Failure to do so may lead to death or serious health hazard, as the gasoline
engine operates when in the hybrid battery (traction battery) charge mode.
●Do not stop the vehicle near flammable materials.
●Do not use the hybrid battery (traction battery) charge mode in a closed
area where ventilation is insufficient, such as in a garage or area with
snow buildup.

PRIUS PRIME_OM_OM47D71U_(U)
1993. Instrument cluster
3
Instrument cluster
■The meters and display illuminate when
The power switch is in ON mode.
■Adjusting the instrument cluster brightness (P. 194)
●The brightness levels that can be selected differ depending on whether the
tail lights are on and surrounding brightness levels, as shown in the table
below.
*: 22 levels of the brightness are displayed on the setting screen. However,
the brightness setting will be the brightest when other than 1st level (the
darkest) is selected. If other than 1st or 22nd level is selected, when the
tail lights are turned on in a dark place, the instrument cluster brightness
setting will be the selected level.
●If the taillights are illuminated in a dark environment, the instrument cluster
light dims. However, when the brightness of the instrument cluster is set to
minimum or maximum (1st or 22nd level of the instrument cluster bright-
ness), even if the taillights are illuminated, the instrument cluster light will
not dim.
■When disconnecting and reconnecting 12-volt battery terminals
The settings of the clock will be reset.
■Calendar setting
●Until the calendar setting is completed, the check screen is displayed 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. 248)
The tail lights are offThe tail lights are on
In a bright place2 levels*2 levels*
In a dark place22 levels
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 setting check
screen is automatically displayed on the
multi-information display.
●If date information is not set, the electric-
ity and fuel consumption record cannot
be stored correctly. Also, the charging
schedule function can not operate prop-
erly. When the calendar setting check
screen is displayed, make sure to com-
plete the calendar setting. (P. 246)

575
PRIUS PRIME_OM_OM47D71U_(U)
7Maintenance and care
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 576
Cleaning and protecting
the vehicle interior ........... 581
7-2. Maintenance
Maintenance
requirements ................... 587
General maintenance........ 590
Emission inspection and
maintenance (I/M)
programs......................... 593
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ..................... 594
Hood ................................. 597
Positioning a floor jack ...... 599
Engine compartment ......... 600
Tires .................................. 614
Tire inflation pressure ....... 623
Wheels .............................. 626
Replacing the tire .............. 629
Air conditioning filter.......... 640
Wiper insert
replacement .................... 644
Electronic key battery........ 647
Checking and replacing
fuses ............................... 650
Headlight aim .................... 653
Light bulbs......................... 655

576
PRIUS PRIME_OM_OM47D71U_(U)
7-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly
with water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.
■Before car washes
Check that the fuel filler door and charging port lid on your vehicle are closed
properly.
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of
the vehicle. Make sure to extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface,
parts (wheel, etc.) and harm your vehicle’s paint.
●Rear spoiler may not be washable in some automatic car washes. There
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11[
■High pressure car washes
As water may enter the cabin, do not bring the nozzle tip near the gaps
around the doors or perimeter of the windows, or spray these areas continu-
ously.
Perform the following to protect the vehicle and maintain it in
prime condition:

PRIUS PRIME_OM_OM47D71U_(U)
5777-1. Maintenance and care
7
Maintenance and care
■Note for a smart key system
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460003004e0048005c0003004c00560003005a004c0057004b[in the effective
range, the door may lock and unlock repeatedly. In that case, follow the fol-
lowing correction procedures to wash the vehicle:
●Place the key in a position 6 ft. (2 m) or more separate from the vehicle
while the vehicle is being washed. (Take care to ensure that the key is not
stolen.)
●Set the electronic key to battery-saving mode to disable the smart key sys-
tem. (P. 294)
■Wheels and wheel ornaments
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480055004a0048005100570011[
●Wash detergent off with water immediately after use.
●To protect the paint from damage, make sure to observe the following pre-
cautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driv-
ing or parking in hot weather
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
The following precautions can extend the effectiveness of the water-repellent
coating.
●Remove any dirt, etc. from the front side windows regularly.
●Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
●Do not use wax or glass cleaners that contain abrasives when cleaning the
windows.
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57004c00520051000300450058004c004f0047000300580053[.
■Plated portions
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52005a0056001d[
●Use a soft cloth dampened with an approximately 5% solution of neutral
detergent and water to clean the dirt off.
●Wipe the surface with a dry, soft cloth to remove any remaining moisture.
●To remove oily deposits, use alcohol wet wipes or a similar product.

578
PRIUS PRIME_OM_OM47D71U_(U)
7-1. Maintenance and care
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components etc. to catch fire.
■While charging
Do not wash the vehicle.
Doing so may cause the electrical components to malfunction or catch fire
and also you may get an electric shock that may result in death or serious
injury.
■When cleaning the windshield (vehicles with rain-sensing windshield
wipers)
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor body or if something bumps into
the raindrop sensor
■Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has
cooled sufficiently, as touching a hot exhaust pipe can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if
equipped)
If the paint of the rear bumper is chipped or scratched, the system may mal-
function. If this occurs, consult your Toyota dealer.
Set the wiper switch to the off position.
If the wiper switch is in the
posi-
tion, the wipers may operate unexpect-
edly in the following situations, and may
result in hands being caught or other
serious injuries and cause damage to the
wiper blades.
●When the upper part of the windshield
where the raindrop sensor is located is
touched by hand
Off