
PRIUS PRIME_OM_OM47A88U_(U)
5657-1. Maintenance and care
7
Maintenance and care
WARNING
■Water in the vehicle
● Do not splash or spill liquid in the vehicle, such as on the floor, in the
hybrid battery (traction battery) air intake vent, and in the luggage com-
partment.
Doing so may cause the hybrid battery (traction battery), electrical compo-
nents, etc. to malfunction or catch fire.
● Do not get any of the SRS components or wiring in the vehicle interior wet.
(→P. 38)
An electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or serious injury.
● Vehicles with wireless charger:
Do not let the wireless charger ( →P. 532) get wet. Failure to do so may
cause the charger to become hot and cause burns or could cause electric
shock resulting in death or serious injury.
■ Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect
off the windshield, obstructing the driver’s view and leading to an accident,
resulting in death or serious injury.
NOTICE
■Cleaning detergents
● Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco- hol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.

566
PRIUS PRIME_OM_OM47A88U_(U)
7-1. Maintenance and care
NOTICE
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.
■ When cleaning the inside of the windshield
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
(→P. 363).
■ Cleaning the inside of the rear window
● Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires or antenna. Use a cloth
dampened with lukewarm water to gently wipe the window clean. Wipe the
window in strokes running parallel to the heater wires or antenna.
● Be careful not to scratch or damage the heater wires or antenna.
■ When cleaning the air in take vents and filters
Observe the following precautions. Failure to do so may cause damage to
the vehicle.
● When removing the air intake vent grille, make sure to turn the power
switch off to stop the hybrid system.
● Do not use water or other liquid to clean the air intake vents or filters.
● Do not allow water or foreign matter to enter the air intake vent when the
grille is removed.
● Carefully handle the removed filters not to damage.
If the filter is damaged, have it replaced with a new filter by your Toyota
dealer.
● Make sure to reinstall the filters and vents to its original positions after
cleaning.
The shape of the left side and right side filters are different. When remov-
ing both filters, be careful not to mistake the left-right installation direction.
● Do not install anything but the filters exclusive for this vehicle to the air
intake vents or use the vehicle without installing the filters.

572
PRIUS PRIME_OM_OM47A88U_(U)
7-2. Maintenance
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work prop-erly?
Fluid leaks• There should not be any signs of fluid leakageafter the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or exces-sively worn.
• Have the tires been rotated according to the
maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should not show any signs
of cracking, splitting, wear, contamination or
deformation.
• The wiper blades should clear the windshield
without streaking or skipping.
Charging equipment
ItemsCheck points
Charging cable• Check the conditions of the charging cableand charging connector. ( →P. 112)
WARNING
■If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation
before performing maintenance checks.

624
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Wiper rubber replacement
While securely supporting the
wiper blade connection by
hand, press the lock knob to
release the lock, and then pull
out the wiper blade.
Align the wiper blade with the
connecting portion of the wiper
arm, and then slide it in the
direction it was removed from.
After installing the wiper blade,
check that the connection is
locked.
When replacing the wiper rubber, perform the following proce-
dure.
Windshield wiper blade removal and installation
1
2

626
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
■Wiper blade and wiper rubber handling
Improper handling may result in damage to the wiper blades or wiper rubber.
If you have any concerns about replacing the wiper blades or wiper rubber
yourself, contact your Toyota dealer.
■ Wiper blade cap
The cap cannot be removed, as it is integrated with the front wiper blade.
NOTICE
■To prevent damage
● Be careful not to damage the claws when replacing the wipers.
● After the wiper blade is removed from the wiper arm, place a cloth, etc.,
between the windshield and wiper arm to prevent damage to the wind-
shield.
● Be sure not to pull excessively on the wiper rubber.

6688-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)■
If “Shift to Position When Parked” is shown
Message is displayed when the driver’s door is opened without turning the
power switch to off with the shift position in any position other than P.
Shift the shift position to P.
■ If “Shift is in Release Acceler ator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift position is in N.
Release the accelerator pedal and shift the shift position to D or R.
■ If “Depress Brake When Vehicle is Stopped. Hybrid System may Over-
heat.” is shown
The message may be shown when the accelerator pedal is depressed to hold
the vehicle while the vehicle is stopped on an uphill, etc.
The hybrid system may overheat. Release the accelerator pedal and depress
the brake pedal.
■ If “Shifted to Stop Vehicle to Shift to ” is shown
If the P position switch is pressed while driving, the shift position is changed
to N and the message is shown. ( →P. 332)
■ If “Auto Power OFF to Conserve Battery” is shown
The power switch has been turned off by the automatic power off function.
When starting the hybrid system next time, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.
■ If “Forward Camera System Unavaila ble” or “Forward Camera System
Unavailable Clean Windshield” is displayed.
The following systems may be suspended until the problem shown in the
message is resolved.
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert with steering control)
● Dynamic radar cruise control with full-speed range
● Automatic High Beam

738
PRIUS PRIME_OM_OM47A88U_(U)
9-2. Customization
■Automatic light control system*1 (→ P. 338)
*1: If equipped
*2: This function cannot be customized for vehicles sold in Canada.
■
Rain-sensing windshield wipers* ( → P. 352)
*: If equipped
■
Intuitive parking assist* ( → P. 420)
*: If equipped
FunctionDefault
settingCustomized setting
Time elapsed before the
headlights turn off 30 secondsOff
–OO
60 seconds
90 seconds
Light sensor sensitivityLevel 0Level -2 to 2–OO
Daytime running lights*2OnOff–OO
123
FunctionDefault
settingCustomized setting
Wiper operation when the
wiper switch is in the “AUTO”
positionRain-sensing operation
Intermittent operation
linked to vehi- cle speed
(with interval
adjuster)
––O
123
FunctionDefault settingCustomized setting
Detection distance of the front
center sensorsFarNear––O
Detection distance of the rear
center sensorsFarNear––O
Buzzer volume31 to 5––O
123

769Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Clock ......................................... 180Adjustment ............................ 185
Coat hooks ............................... 540
Combination meter .................. 180 Clock adjustment .................. 185
Main display .......................... 196
Multi-information display ....... 205
Warning lights and
indicators ............................ 188
Condenser ................................ 586
Console box ............................. 519
Consumption screen ....... 250, 256
Coolant ..................................... 584 Capacity ................................ 714
Checking ............................... 584
Preparing and checking before winter....................... 482
Cooling system ........................ 584 Engine overheating ............... 700
Hybrid system overheating ... 702
Cruise control .......................... 391 Dynamic radar cruise control with full-speed range .......... 391
Cup holders.............................. 520
Curtain shield airbags ............... 36
Customizable features ............ 732
Daytime running light system .................................... 341
Deck board ............................... 523
Defogger Outside rear view
mirrors ........................ 491, 502
Rear window ................. 491, 502
Windshield .................... 491, 501 Dimension ................................ 708
Dinghy towing.......................... 323
Display
BSM (Blind Spot Monitor) ..... 408
Drive information .................. 207
Dynamic radar cruise control with full-speed range .......... 391
Energy monitor ..... 208, 247, 253
Head-up display.................... 238
Intelligent Clearance Sonar.................................. 435
Intuitive parking assist .......... 421
LDA (Lane Departure Alert with steering control) .......... 385
Main display.......................... 196
Multi-information display ....... 205
Pre-collision warning ............ 369
S-APGS (Simple Advanced Parking Guidance
System) .............................. 446
Warning messages ............... 663
Do-it-yourself maintenance .... 574
Door courtesy lights ............... 515 Location ................................ 515
Wattage ................................ 717
Doors ................................ 267, 273 Automatic door locking
and unlocking system......... 270
Back door ............................. 273
Door glasses......................... 300
Door lock .............................. 267
Open door warning buzzer ... 655
Open door warning light ....... 655
Outside rear view mirrors ..... 298
Rear door child-protectors .... 270
Side doors ............................ 267
Side windows........................ 300
D
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.