Page 670 of 808
670
PRIUS PRIME_OM_OM47E74U_(U)
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 671 of 808

671
PRIUS PRIME_OM_OM47E74U_(U)
8
When trouble arises
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 733 of 808
PRIUS PRIME_OM_OM47E74U_(U)
7339-1. 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 785 of 808

785Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
Approach warning ................... 419
Armrest ..................................... 562
Assist grips .............................. 563
Audio input
*
Audio system*
Automatic air conditioning system ..... 508, 520 Air conditioning eco
mode .......................... 511, 523
Air conditioning filter ............. 637
Automatic air conditioning system .... 508, 520
Eco score (A/C score)........... 243
Front seat concentrated airflow mode
(S-FLOW) ................... 510, 522
Humidity sensor ............ 519, 530
Remote Air Conditioning
System ............................... 531
Automatic door locking
and unlocking systems ........ 282
Automatic High Beam (AHB) ...................................... 352
Automatic light control system .................................... 350
AUX port
*
Auxiliary boxes ........................ 544
Back door ................................. 285
Back-up light ............................ 652 Replacing light bulbs............. 653
Wattage ................................ 734 Battery (12-volt battery) .......... 605
Battery checking ................... 605
Exchanging ........................... 715
If the 12-volt battery is discharged.......................... 712
Preparing and checking before winter ...................... 502
Replacing.............................. 715
Warning light......................... 671
Battery (traction battery) .......... 99 Air intake vent ....................... 100
Charging ............................... 111
Location .................................. 99
Specification ......................... 729
Status indicator ..................... 113
Blind Spot Monitor (BSM) ....... 427 Blind Spot Monitor
function............................... 432
Rear Cross Traffic Alert function............................... 435
Bluetooth
®*
Bottle holders .......................... 543
Brake Fluid ...................................... 733
Parking brake ....................... 346
Regenerative braking ............. 95
Warning light......................... 671
Brake assist ............................. 496
Brake Override System ........... 316
Break-in tips............................. 317
Brightness control Instrument cluster light control ................................ 194
BSM (Blind Spot Monitor) ....... 427 Blind Spot Monitor function............................... 432
Rear Cross Traffic Alert function............................... 435
B
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.
Page 789 of 808

789Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
EngineAccessory mode ................... 334
Compartment ........................ 598
Engine switch........................ 332
Exhaust gas precautions ........ 56
Hood ..................................... 595
How to start the hybrid system ......... ....................... 332
Identification number ............ 728
If the hybrid system will not start .................................... 706
If your vehicle has to be stopped in an emergency ... 661
Ignition switch (power
switch) ................................ 332
Overheating .......................... 718
Power switch......................... 332
Engine coolant ......................... 602 Capacity ................................ 731
Checking ............................... 602
Preparing and checking before winter....................... 502
Engine oil ................................. 599
Capacity ................................ 730
Checking ............................... 599
Oil pressure warning light ..... 671
Preparing and checking before winter....................... 502
Engine switch (power switch) .................................... 332
Auto power off function ......... 334
Changing the power switch modes................................. 334
If your vehicle has to be stopped in an emergency ... 661
Starting the hybrid system .... 332 EPS (Electric Power
Steering) ................................ 497
Function ................................ 497
Warning light......................... 672
EV auto mode ............................ 87
EV driving range ...................... 109
EV mode ..................................... 87
EV/HV mode selection
switch ....................................... 90
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 56
Flat tire ..................................... 689
Floor mats .................................. 26
Fluid Brake .................................... 733
Transmission ........................ 732
Washer ................................. 610
Fog lights ................................. 357
Replacing light bulbs ............ 657
Switch ................................... 357
Footwell lights ......................... 537
Front doors .............................. 279
Front fog lights ........................ 357
Replacing light bulbs ............ 657
Switch ................................... 357
Front passenger occupant classification system .............. 50
Front passenger’s seat
belt reminder light................. 674
Front seat concentrated airflow mode
(S-FLOW) ....................... 510, 522
F