2020 TOYOTA PRIUS PRIME power steering

6778-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47C77U_(U)
8
When trouble arises
■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. 344)
■ 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 D epressed Simultaneously” is shown
The accelerator and brake pedals are being depressed simultaneo usly.
( P. 320)
Release the accelerator pedal and depress the brake pedal.
■ If “Front Camera Unavailable See Owner’s Manual” or “Front Came ra
Unavailable” is displayed.
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 392, 662)
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert with steering control)
● Dynamic radar cruise control with full-speed range
● Automatic High Beam

6958-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47C77U_(U)
8
When trouble arises
WARNING
■Driving to spread the liquid sealant evenly
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and ca use death
or serious injury.
●Drive the vehicle carefully at a low speed. Be especially careful when
turning and cornering.
●If the vehicle does not drive straight or you feel a pull throu gh the
steering wheel, stop the vehicle and check the following.
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If the tire inflation pressure is 19 p si
(130 kPa, 1.3 kgf/cm
2 or bar) or less, the tire may be severely dam-
aged.
NOTICE
■When performing an emergency repair
●A tire should only be repaired with the emergency tire puncture repair
kit if the damage is caused by a sharp object such as nail or screw
passing through the tire tread.
Do not remove the sharp object from the tire. Removing the obje ct may
widen the opening and disenable e mergency repair with the repair kit.
●The repair kit is not waterproof. Make sure that the repair kit is not
exposed to water, such as when it is being used in the rain.
●Do not put the repair kit directly onto dusty ground such as sa nd at the
side of the road. If the repair kit vacuums up dust etc., a mal function
may occur.
■Precautions for the emergency tire puncture repair kit
●The repair kit power source should be 12 V DC suitable for vehi cle
use. Do not connect the repa ir kit to any other source.
●If fuel splatters on the repair kit, the repair kit may deterio rate. Take
care not to allow fuel to contact it.
●Place the repair kit in a storage to prevent it from being exposed to dirt
or water.
●Store the repair kit in the luggage compartment out of reach of chil-
dren.
●Do not disassemble or modify the repair kit. Do not subject par ts such
as the air pressure indicator to impacts. This may cause a malfunction.

PRIUS PRIME_OM_OM47C77U_(U)
7359-1. Specifications
9
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of hybrid
transmission, power steering, power brakes,
power windows, power seats, radio and
heater, to the extent that these items are avail-
able as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded
vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below

778Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Drive information ..................... 220
Drive-Start Control .................. 320
Driver’s seat belt reminder light......................................... 664
Driving ...................................... 318
Break-in tips .......................... 321
Correct driving posture ........... 28
Driving in the rain .................. 319
Driving mode select switch ... 419
Plug-in hybrid vehicle driving tips ...................................... 105
Procedures ........................... 318
Winter drive tips .................... 495
Dynamic radar cruise control
with full-speed range ............ 403
ECB (Electronically Controlled Brake System) .... 489
Eco drive mode ........................ 419
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................................... 86
Location .................................. 86
Specification ......................... 721
Electric Power Steering (EPS)....................................... 490
Function ................................ 490
Warning light ......................... 663
Electronic key .......................... 274
Battery-saving function ......... 292
If the electronic key does not operate properly ........... 699
Replacing the battery ............ 635 Electronically Controlled
Brake System (ECB) ............. 489
Emergency, in case of If a warning buzzer sounds... 662
If a warning light turns on ..... 662
If a warning message is displayed ............................ 672
If the 12-volt battery is
discharged.......................... 703
If the electronic key does not operate properly ................. 699
If the hybrid system will not start .................................... 697
If the vehicle becomes
stuck ................................... 714
If the vehicle is trapped in rising water ......................... 654
If you have a flat tire ............. 680
If you lose your keys ..... 275, 278
If you think something is wrong .............................. 661
If your vehicle has to be stopped in an emergency ... 653
If your vehicle needs to be towed.................................. 655
If your vehicle overheats....... 709
Emergency flashers ................ 652
Emergency tire puncture
repair kit ................................. 680
Energy monitor ........ 221, 260, 266
E

779Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
EngineAccessory mode ................... 338
Compartment ........................ 588
Engine switch........................ 336
Exhaust gas precautions ........ 56
Hood ..................................... 585
How to start the hybrid system ......... ....................... 336
Identification number ............ 720
If the hybrid system will not start .................................... 697
If your vehicle has to be stopped in an emergency ... 653
Ignition switch (power
switch) ................................ 336
Overheating .......................... 709
Power switch......................... 336
Engine coolant ......................... 592 Capacity ................................ 723
Checking ............................... 592
Preparing and checking before winter....................... 495
Engine oil ................................. 589
Capacity ................................ 722
Checking ............................... 589
Oil pressure warning light ..... 662
Preparing and checking before winter....................... 495
Engine switch (power switch) .................................... 336
Auto power off function ......... 338
Changing the power switch modes................................. 338
If your vehicle has to be stopped in an emergency ... 653
Starting the hybrid system .... 336 EPS (Electronic Power
Steering) ................................ 490
Function ................................ 490
Warning light......................... 663
EV auto mode ............................ 87
EV driving range ...................... 108
EV mode ..................................... 87
EV/HV mode selection
switch ....................................... 90
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 56
Flat tire ..................................... 680
Floor mats .................................. 26
Fluid Brake .................................... 725
Transmission ........................ 724
Washer ................................. 600
Fog lights ................................. 360
Replacing light bulbs ............ 648
Switch ................................... 360
Footwell lights ......................... 528
Front doors .............................. 279
Front fog lights ........................ 360
Replacing light bulbs ............ 648
Switch ................................... 360
Front passenger occupant classification system .............. 50
Front passenger’s seat
belt reminder light................. 664
F

782Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Jack........................................... 618Positioning a floor jack .......... 587
Vehicle-equipped jack........... 618
Jack handle .............................. 618
Jam protection function.......... 313
Keyless entry ........................... 280 Smart key system ................. 290
Wireless remote control ........ 280
Keys .......................................... 274
Battery-saving function ......... 292
Electronic key ....................... 274
Engine switch........................ 336
If the electronic key does not operate properly ................. 699
If you lose your keys ..... 275, 278
Key number plate.................. 274
Keyless entry ........................ 280
Mechanical key ..................... 275
Power switch......................... 336
Replacing the battery ............ 635
Smart key system ................. 290
Warning buzzer..................... 291
Wireless remote control ........ 274
Knee airbags .............................. 36 Language (multi-information
display) .................................. 246
LATCH system ........................... 70
LDA (Lane Departure Alert with steering control) ........... 393
Lever Auxiliary catch lever.............. 585
Hood lock release lever ........ 585
Shift lever.............................. 342
Tilt and telescopic steering lock release lever ............... 306
Turn signal lever ................... 348
Wiper lever ........................... 362
License plate lights ................. 350
Light switch ........................... 350
Replacing light bulbs ............ 648
Light
Automatic High Beam ........... 355
Door courtesy lights .............. 528
Emergency flasher switch..... 652
Fog light switch ..................... 360
Headlight switch ................... 350
Illuminated entry system ....... 530
Interior lights ................. 529, 530
Interior light list ..................... 528
Luggage compartment light..................................... 286
Personal lights ...................... 529
Replacing light bulbs ............ 643
Shift lever light ...................... 528
Turn signal lever ................... 348
Vanity lights .......................... 540
Wattage ................................ 726
Light bulbs Replacing.............................. 643
Wattage ................................ 726
Load capacity .......................... 333
Luggage cover ......................... 538
J
K
L

784Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
P position switch ..................... 343
Panic mode .............................. 275
Parking assist sensors Intuitive parking assist .......... 433
Parking Support Brake function ............................... 443
S-APGS (Simple Advanced Parking Guidance
System) .............................. 455
Parking brake ........................... 349 Operation .............................. 349
Parking brake engaged
warning buzzer ................... 349
Parking lights ........................... 350
Light switch ........................... 350
Replacing light bulbs............. 648
Parking lock ............................. 343
Parking Support Brake
function .................................. 443
PCS (Pre-Collision System) .... 381
Enabling/disabling the system ......... ....................... 385
Function ................................ 381
Warning light ......................... 663
Personal lights ......................... 528 Switch ................................... 529
Wattage ................................ 726
Plug-in hybrid system ............... 86 Driving tips ............................ 105
EV auto mode ......................... 87
EV driving range ................... 108
EV mode ................................. 87
EV/HV mode selection switch ................................... 90
Features.................................. 86
How to charge....................... 146
HV mode ................................. 87
Hybrid battery (traction battery) charge mode ........... 87 Power control unit coolant ..... 592
Capacity................................ 723
Checking............................... 592
Preparing and checking before winter ...................... 495
Radiator ................................ 594
Power outlets ........................... 541
Power sources ......................... 131
Power steering (Electric Power Steering)..................... 490 Function ................................ 490
Warning light......................... 663
Power switch ........................... 336 Auto power off function ......... 338
Changing the power
switch modes ..................... 338
If your vehicle has to be
stopped in an emergency ... 653
Starting the hybrid system .... 336
Power windows ....................... 312
Catch protection function ...... 313
Door lock linked window operation ............................ 313
Jam protection function ........ 313
Operation .............................. 312
Window lock switch .............. 312
Pre-Collision System (PCS).... 381
Enabling/disabling the system .......... ...................... 385
Function ................................ 381
Warning light......................... 663
P

787Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
SwitchAudio remote control switches
*
Automatic High Beam
switch ................................. 355
Charging timer switch ........... 161
Cruise control switch............. 403
Door lock switches ................ 281
Driving mode select switch ... 419
Emergency flashers switch ... 652
Engine switch........................ 336
EV auto mode switch .............. 90
EV/HV mode selection
switch ................................... 90
Fog light switch ..................... 360
Fuel filler door opener
switch ................................. 370
Garage door opener
switches.............................. 555
Heated steering wheel switch ................................. 527
“HUD” (Head-up display) switch ................................. 253
Ignition switch ....................... 336
Instrument cluster light
control switch...................... 194
LDA (Lane Departure Alert with steering control)
switch ................................. 396
Light switch ........................... 350
Meter control switches .......... 193
Outside rear view mirror switches.............................. 310
P position switch ................... 343
Power door lock switches ..... 281
Power switch......................... 336
Power window switch............ 312
Rear window and outside
rear view mirror
defoggers switch ........ 504, 515
S-APGS switch ..................... 458
Seat heater switches ............ 527 “SOS” button........................... 76
Talk switch
*
Telephone switches*
TRIP switch .......................... 211
Vehicle-to-vehicle distance
switch ................................. 411
VSC OFF switch ................... 490
Window lock switch .............. 312
Windshield wipers and washer switch..................... 362
Wireless charger power
supply switch ...................... 544
Tail lights.................................. 350 Light switch ........................... 350
Replacing light bulbs ............ 648
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system .. ............... 83
Tire inflation pressure............. 611 Maintenance data ................. 725
Warning light......................... 665
Tire information ....................... 730 Glossary ............................... 735
Size....................................... 731
Tire Identification Number .... 731
Uniform Tire Quality Grading .............................. 733
Tire pressure warning system.................................... 603 Function ................................ 603
Initializing .............................. 603
Installing tire pressure warning valves and
transmitters ........................ 603
Registering ID codes ............ 604
Warning light......................... 665
T
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.