2020 TOYOTA PRIUS PRIME maintenance

PRIUS PRIME_OM_OM47C77U_(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_OM47C77U_(U)
10
5
6-4. Using the other interior features
Other interior features ....... 540 • Sun visors ..................... 540
• Vanity mirrors................ 540
• Power outlets ................ 541
• USB charging ports....... 542
• Wireless charger ........... 544
• Armrest ......................... 553
• Coat hooks.................... 553
• Assist grips ................... 554
Garage door opener .......... 555 7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 564
Cleaning and protecting the vehicle interior ........... 569
7-2. Maintenance Maintenance requirements ................... 575
General maintenance ........ 578
Emission inspection and maintenance (I/M)
programs ......................... 581
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 582
Hood .................................. 585
Positioning a floor jack....... 587
Engine compartment ......... 588
Tires................................... 602
Tire inflation pressure ........ 611
Wheels............................... 614
Replacing the tire............... 617
Air conditioning filter .......... 628
Wiper insert replacement..................... 632
Electronic key battery ........ 635
Checking and replacing fuses ................................ 638
Headlight aim..................... 641
Light bulbs ......................... 643
7Maintenance and care

TABLE OF CONTENTS6
PRIUS PRIME_OM_OM47C77U_(U)8-1. Essential information
Emergency flashers .......... 652
If your vehicle has to be stopped in an
emergency ...................... 653
If the vehicle is trapped in rising water .................. 654
8-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 655
If you think something is wrong .............................. 661
If a warning light turns on or a warning buzzer
sounds ............................ 662
If a warning message is displayed ......................... 672
If you have a flat tire .......... 680
If the hybrid system will not start ........................... 697
If the electronic key does not operate properly ........ 699
If the 12-volt battery is discharged ...................... 703
If your vehicle overheats ... 709
If the vehicle becomes stuck................................ 714 9-1. Specifications
Maintenance data (fuel, oil level, etc.) .......... 718
Fuel information ................. 727
Tire information.................. 730
9-2. Customization Customizable features ....... 741
9-3. Initialization Items to initialize ................ 752
Reporting safety defects for U.S. owners ........................ 754
Seat belt instructions for Canadian owners
(in French)................................ 755
SRS airbag instructions for Canadian owners
(in French)................................ 757
Headlight aim instructions for Canadian owners
(in French)................................ 766
8When trouble arises9Vehicle specifications
10For owners

831-4. Theft deterrent system
PRIUS PRIME_OM_OM47C77U_(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
●If the grip portion of the key is in contact with a metallic ob 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 ha ve built-in transponder chips that prevent
the hybrid system from starting if a key has not been previousl y
registered in the vehic le’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_OM47C77U_(U)
972-1. Plug-in hybrid system
2
Plug-in hybrid system
■When “Proximity Notification System Malfunction Visit Your Deal er” 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, recyc ling and dis-
posal. Do not dispose of the vehicle yourself.
■ Customization
Setting of the vehicle proximity notification system (volume of sound) can be
changed. (Customizable features: P. 741)
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_OM47C77U_(U)
1993. Instrument cluster
3
Instrument cluster
■The meters and display illuminate when
The power switch is in ON mode.
■ Adjusting the instrume nt 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 scree n. 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 select ed, when the
tail lights are turned on in a dark place, the instrument clust er brightness
setting will be the selected level.
● If the taillights are illuminated in a dark environment, the in strument cluster
light dims. However, when the brightness of the instrument clus ter is set to
minimum or maximum (1st or 22nd level of the instrument cluster bright-
ness), even if the taillights are illuminated, the instrument c luster 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 di splayed 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. 246)
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 charge
timer function can not operate properly.
When the calendar setting check screen
is displayed, make sure to complete the
calendar setting. ( P. 244)

563
PRIUS PRIME_OM_OM47C77U_(U)
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 564
Cleaning and protecting the vehicle interior ........... 569
7-2. Maintenance Maintenance requirements ................... 575
General maintenance........ 578
Emission inspection and maintenance (I/M)
programs......................... 581
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 582
Hood ................................. 585
Positioning a floor jack ...... 587
Engine compartment ......... 588
Tires .................................. 602
Tire inflation pressure ....... 611
Wheels .............................. 614
Replacing the tire .............. 617
Air conditioning filter.......... 628
Wiper insert replacement .................... 632
Electronic key battery........ 635
Checking and replacing fuses ............................... 638
Headlight aim .................... 641
Light bulbs......................... 643

564
PRIUS PRIME_OM_OM47C77U_(U)
7-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicl e
body, wheel wells and underside of the vehicle to remove any di rt
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 thoroughl y
with water.
● Wipe away any water.
● Wax the vehicle when the wate rproof 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 v ehicle 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 su rface and
harm your vehicle’s paint.
● Rear spoiler may not be washable in some automatic car washes. There
may also be an increased risk of damage to vehicle.
■ 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 ar eas continu-
ously.
Perform the following to protect the vehicle and maintain it in
prime condition: