Page 661 of 792
661
PRIUS PRIME_OM_OM47C77U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks un der the vehicle
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warni ng light flashes or comes on
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms
Page 662 of 792

662
PRIUS PRIME_OM_OM47C77U_(U)
8-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
Have the vehicle inspected by your Toyota dealer
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light
(warning buzzer)
*2
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
Have the vehicle inspected by your Toyota dealer
immediately.
Page 725 of 792
PRIUS PRIME_OM_OM47C77U_(U)
7259-1. Specifications
9
Vehicle specifications
*1: Minimum pedal clearance when depressed with a force of 67.4 lbf (300 N,
30.6 kgf) while the hybrid system is operating.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N,
30.6 kgf).
Brakes
Pedal clearance*14.69 in. (119 mm) Min.
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake pedal travel*28 — 11 clicks
Fluid typeSAE J1703 or FMVSS No.116 DOT 3 or
SAE J1704 or FMVSS No.116 DOT 4
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size195/65R15 91S
Tire inflation pressure
(Recommended cold
tire inflation pressure)Front36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear35 psi (240 kPa, 2.4 kgf/cm2 or bar)
SpareNone
Wheel size15 6 1/2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 775 of 792

775Alphabetical index
PRIUS PRIME_OM_OM47C77U_(U)
Approach warning ................... 413
Armrest ..................................... 553
Assist grips .............................. 554
Audio input
*
Audio system*
Automatic air conditioning system ..... 500, 511 Air conditioning eco
mode .......................... 503, 514
Air conditioning filter ............. 628
Automatic air conditioning system .... 500, 511
Eco score (A/C score)........... 241
Humidity sensor ............ 510, 521
Remote Air Conditioning System ............................... 522
S-FLOW mode .............. 501, 513
Automatic door locking and unlocking systems ........ 282
Automatic High Beam ............. 355
Automatic light control
system .................................... 353
AUX port
*
Auxiliary boxes ........................ 535
Back door ................................. 285
Back-up light ............................ 643
Replacing light bulbs............. 644
Wattage ................................ 726
Battery (12-volt battery) .......... 595 Battery checking ................... 595
Exchanging ........................... 706
If the 12-volt battery is discharged .......................... 703
Preparing and checking
before winter....................... 495
Replacing .............................. 706
Warning light ......................... 662 Battery (traction battery) .......... 98
Air intake vent ......................... 99
Charging ............................... 110
Location .................................. 98
Specification ......................... 721
Status indicator ..................... 112
Blind Spot Monitor (BSM) ....... 421 Blind Spot Monitor function... 425
Rear Cross Traffic Alert
function............................... 428
Bluetooth
®*
Bottle holders .......................... 534
Brake Fluid ...................................... 725
Parking brake ....................... 349
Regenerative braking ............. 94
Warning light......................... 662
Brake assist ............................. 489
Brake Override System ........... 320
Break-in tips............................. 321
Brightness control Instrument cluster light control ................................ 194
BSM (Blind Spot Monitor) ....... 421 Blind Spot Monitor function... 425
Rear Cross Traffic Alert function............................... 428
Care .................................. 564, 569 Aluminum wheels ................. 565
Camera sensor ..................... 377
Exterior ................................. 564
Interior .................................. 569
Radar sensor ........................ 376
Seat belts.............................. 572
Water-repellent coating ........ 565
B
C
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.
Page 779 of 792

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