2021 TOYOTA PRIUS check oil

578
PRIUS_OM_OM47E09U_(U)
6-3. Do-it-yourself maintenance
WARNING
■Replacing light bulbs
● Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clea n dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Fa ilure to do so
may result in heat damage, fire, or water entering the headligh t unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble light bulbs, connectors , electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ To prevent damage or fire
● Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.

6067-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)■
If “See Owner’s Manual” is shown
●If “Braking Power Low Stop in a Safe Place See Owner’s Manual” is shown,
this may be a malfunction. Immediately stop the vehicle in a sa fe place and
contact your Toyota dealer. Continuing to drive the vehicle may be danger-
ous.
● If “Engine Oil Pressure Low” is shown, this may be a malfunction. Immedi-
ately stop the vehicle in a safe place and contact your Toyota dealer.
● If the following messages are shown, there may be a malfunction . Immedi-
ately have the vehicle inspected by your Toyota dealer.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction See Owner’s Manual”
■ If “Shift System Not A ctive Apply Parking Brake Securely While Parking
See Owner’s Manual” is shown
Indicates a temporary operation failure or malfunction in the shift control sys-
tem. Immediately have the vehicle inspected by your Toyota deal er.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 609)
■ If “Shift System Malfunction A pply Parking Brake Securely While Park-
ing See Owner’s Manual” is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 609)
■ If “ Switch Malfunction Apply Par king Brake Securely While Parking
See Owner’s Manual” is shown
The P position switch may not operate. Immediately have the veh icle
inspected by your Toyota dealer.
When parking the vehicle, stop the vehicle on level ground and apply the
parking brake firmly.
■ If “Shift System Malfunction Shi fting Unavailable See Owner’s M anual”
is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be shifted from P to other than P.
■ If “Shift System Malfunction S top in a Safe Place See Owner’s Manual”
is shown
Indicates a malfunction in the shift control system. Immediatel y have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be changed. Stop the vehicle in a sa fe place.

6087-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)■
If “Shift to Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without t urning the
power switch to off with the shift position in any position oth er than P.
Shift the shift position to P.
■ If “Shift is in Release Accelerat or 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 Ov er-
heat.” is shown
The message may be shown when the accelerator pedal is depresse d to hold
the vehicle while the vehicle is stopped on an uphill, etc.
The hybrid system may overheat. Release the accelerator pedal a nd 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 po sition is changed
to N and the message is shown. ( P. 257)
■ 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 s ystem for
approximately 5 minutes to recharge the 12-volt battery.
■ If “Engine Oil Level Low Add or Replace” is displayed
The engine oil level may be low. Check the level of the engine oil, and add
engine oil if necessary. This message may be displayed if the vehicle is
stopped on a slope. Move the vehicle to a level surface and che ck if the mes-
sage disappears.
■ If “Accelerator and Brake Pedals Pressed Simultaneously” is sho wn
The accelerator and brake pedals are being depressed simultaneo usly.
( P. 229)
Release the accelerator pedal and depress the brake pedal.
■ If a message that indicates the malfunction of front camera is dis-
played.
*
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 294, 592)
● PCS (Pre-Collision System)
*
●LTA (Lane Tracing Assist)*
●AHB (Automatic High Beam)*
●RSA (Road Sign Assist)*
●Dynamic radar cruise control with full-speed range*
*
: If equipped

668
PRIUS_OM_OM47E09U_(U)
8-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Park the vehicle on level ground. After warming up the
engine and turning off the hybrid system, wait more than 5 minu tes, and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat isfy
the following grade and viscosity.
Oil grade: API SN/RC multigrade engine oil
Recommended viscosity: SAE 0W-16
SAE 0W-16 is the best choice
for good fuel economy and
good starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
with SAE 0W-16 at the next oil
change.
Oil viscosity (0W-16 is expl ained here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil which allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The 16 in 0W-16 indicates the vi scosity characteristic of the oil
when the oil is at high temperature. An oil with a higher visco sity
(one with a higher value) may be better suited if the vehicle i s
operated at high speeds, or un der extreme load conditions.
Lubrication system
With filter4.4 qt. (4.2 L, 3.7 Imp.qt.)
Without filter4.1 qt. (3.9 L, 3.4 Imp.qt.)
Outside temperature

729Alphabetical index
PRIUS_OM_OM47E09U_(U)
Engine....................................... 666Accessory mode ................... 247
Compartment ........................ 518
Engine switch (power switch) ................................ 245
Exhaust gas precautions ........ 54
Hood ..................................... 515
How to start the hybrid system ......... ....................... 245
Identification number ............ 666
If the hybrid system will not start .............................. 645
If your vehicle has to be stopped in an emergency ... 581
Ignition switch (power switch) ................................ 245
Overheating .......................... 656
Power switch......................... 245
Engine coolant ......................... 522 Capacity ................................ 670
Checking ............................... 522
Preparing and checking before winter....................... 430
Engine oil ................................. 519 Capacity ................................ 668
Checking ............................... 519
Oil pressure warning light ..... 592
Preparing and checking before winter....................... 430
Engine switch (power
switch) .................................... 245 Auto power off function ......... 247
Automatic hybrid system shut off feature ........................... 249
Changing the power switch modes................................. 247
If your vehicle has to be stopped in an emergency ... 581
Starting the hybrid system .... 245 EPS (Electronic Power
Steering) ................................ 421
Function ................................ 421
Warning light......................... 593
EV drive mode ......................... 252
EV indicator ............................. 129
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 54
Flat tire ............................. 611, 631
Floor mat .................................... 26
Fluid Brake .................................... 671
Transmission ........................ 671
Washer ................................. 530
Fog lights ................................. 273
Replacing light bulbs ............ 577
Switch ................................... 273
Footwell lights ......................... 458
Front camera............................ 289
Front doors .............................. 185
Front fog lights ........................ 273
Replacing light bulbs ............ 577
Switch ................................... 273
Front passenger occupant classification system .............. 49
Front passenger’s seat belt reminder light ........................ 595
Front seat concentrated
airflow mode
(S-FLOW) ....................... 438, 448
Front seats ............................... 204
Adjustment............................ 204
Cleaning ............................... 502
Correct driving posture ........... 28
Head restraints ..................... 209
Seat heaters ......................... 456
Front side marker lights ......... 263
Light switch ........................... 263
Replacing light bulbs ............ 571
Wattage ................................ 674
F

739Alphabetical index
PRIUS_OM_OM47E09U_(U)
Warning lights.......................... 107ABS....................................... 593
Brake Override System......... 596
Brake system ....... ................. 592
Charging system ................... 592
Drive-Start Control ................ 596
Driver’s seat belt reminder light ..................................... 595
Electronic engine control system ......... ....................... 592
Electric power steering
system ......... ....................... 593
Front passenger’s seat belt reminder light...................... 595
High coolant temperature ..... 594
Low engine oil pressure ........ 592
Low fuel level ........................ 594
Malfunction indicator lamp .... 592
Master warning light.............. 595
Open door ............................. 594
Parking Support Brake function ............................... 596
PCS ...................................... 593
PKSB OFF indicator ............. 594
Rear passengers’ seat belt
reminder light...................... 595
Seat belt reminder light ......... 595
Slip indicator ......................... 594
SRS ...................................... 593
Tire pressure......................... 595 Warning messages.................. 603
Warning reflector storage
space ...................................... 470
Washer ............................. 275, 281 Checking............................... 530
Preparing and checking
before winter ...................... 430
Switch ........................... 275, 281
Washing and waxing ............... 496
Water-repellent coating .......... 497
Weights .................................... 664 Cargo capacity...................... 242
Load limits ............................ 664
Wheels ...................................... 545
Replacing wheels ................. 631
Size....................................... 672
Window glasses ...................... 218
Window lock switch ................ 218
Windows Power windows..................... 218
Rear window
defogger ..................... 440, 450
Washer ......................... 275, 281
Windshield wipers ................... 275 Handling the wiper arms ....... 501
Rain-sensing windshield wipers ................................. 277
Replacing the wiper insert .... 556
Winter driving tips ................... 430
Wiper insert replacement ....... 556
Wireless charger ..................... 477
Wireless remote control ......... 180 Battery-Saving Function ....... 198
Locking/Unlocking ................ 186
Panic mode........................... 181
Replacing the battery............ 560
WMA disc
*1
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: Refer to “NAVIGATION S YSTEM OWNER’S MANUAL”.