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TABLE OF CONTENTS6
PRIUS PRIME_OM_OM47E74U_(U)8-1. Essential information
Emergency flashers .......... 660
If your vehicle has to be stopped in an
emergency ...................... 661
If the vehicle is submerged or water on the road
is rising ............................ 662
8-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 664
If you think something is wrong .............................. 670
If a warning light turns on or a warning buzzer
sounds ............................ 671
If a warning message is displayed ......................... 681
If you have a flat tire .......... 689
If the hybrid system will not start ........................... 706
If the electronic key does not operate properly ........ 708
If the 12-volt battery is discharged ...................... 712
If your vehicle overheats ... 718
If the vehicle becomes stuck................................ 723 9-1. Specifications
Maintenance data (fuel, oil level, etc.) .......... 726
Fuel information ................. 735
Tire information.................. 738
9-2. Customization Customizable features ....... 749
9-3. Initialization Items to initialize ................ 761
Reporting safety defects for U.S. owners ........................ 764
Reporting safety defects for Canadian owners ................ 765
Seat belt instructions for Canadian owners
(in French)................................ 766
SRS airbag instructions for Canadian owners
(in French)................................ 768
Headlight aim instructions for Canadian owners
(in French)................................ 777
8When trouble arises9Vehicle specifications
10For owners
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PRIUS PRIME_OM_OM47E74U_(U)
5-5. Using the driving support systems
Follow-up cruising display
Displayed when the multi-information display is switched to the driving
assist system information screen.
Indicates that steering assist of the lane centering function i s operating by
monitoring the position of a preceding vehicle.
When the follow-up cruising display is displayed, if the preced ing vehicle
moves, your vehicle may move in the same way. Always pay carefu l atten-
tion to your surroundings and operate the steering wheel as nec essary to
correct the path of the vehicle and ensure safety.
■ Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.
*1
• System recognizes white (yellow) lane lines or a course*2. (When a white
[yellow] line or course
*2 is recognized on only one side, the system will
operate only for the recognized side.)
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P. 404)
*1: The function operates even if the vehicle speed is less than a pproxi-
mately 32 mph (50 km/h) when the lane centering function is ope rating.
*2: Boundary between asphalt and the side of the road, such as gra ss, soil,
or a curb
● Steering assist function
This function operates when all of the following conditions are met in addi-
tion to the operation conditions for the lane departure alert function.
• Setting for (“LTA Steering Assist Mode”) in of the multi-
information display is set to “On”. ( P. 220)
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P. 403)
4
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588
PRIUS PRIME_OM_OM47E74U_(U)
7-2. Maintenance
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Own er’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified s ervice shop for advice.
Engine compartment
ItemsCheck points
12-volt batteryCheck the connections. (P. 605)
Brake fluidIs the brake fluid at the correct level? ( P. 608)
Engine/power control
unit coolantIs the engine/power control unit coolant at the
correct level? (P. 602)
Engine oilIs the engine oil at the correct level? (P. 599)
Exhaust systemThere should not be any fumes or strange
sounds.
Radiator/condenserThe radiator and condenser should be free from
foreign objects. (P. 604)
Washer fluidIs there sufficient washer fluid? (P. 610)
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PRIUS PRIME_OM_OM47E74U_(U)
7-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
( P. 6 0 5 )•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 6 0 8 )
• SAE J1703 or FMVSS No.116 DOT 3 or SAE J1704
or FMVSS No.116 DOT 4 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit cool-
ant level
( P. 6 0 2 )
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 5 9 9 )• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 647)• Fuse with same amperage rating as original
Hybrid battery
(traction battery)
air intake vent
( P. 5 8 0 )
• Vacuum cleaner, etc.
• Flathead screwdriver
Headlight aim
( P. 6 5 0 )• Phillips-head screwdriver
Light bulbs
( P. 6 5 2 )
• Bulb with same number and wattage rating as origi-
nal
• Flathead screwdriver
• Wrench
Radiator and con-
denser ( P. 604)
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PRIUS PRIME_OM_OM47E74U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
IO73PH112
Engine coolant reservoir ( P. 602)
Fuse boxes ( P. 647)
Engine oil level dipstick ( P. 599)
Engine oil filler cap ( P. 600)
Brake fluid reservoir ( P. 608) Washer fluid tank (
P. 610)
12-volt battery ( P. 605)
Power control unit coolant
reservoir ( P. 602)
Radiator ( P. 604)
Condenser ( P. 604)
Electric cooling fans1
2
3
4
5
6
7
8
9
10
11
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PRIUS PRIME_OM_OM47E74U_(U)
5997-3. Do-it-yourself maintenance
7
Maintenance and care
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oil
Park the vehicle on level ground. After warming up the engine
and turning off the hybrid system, wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check th e
oil level.
Low
Normal
Excessive
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
3
6
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PRIUS PRIME_OM_OM47E74U_(U)
7-3. Do-it-yourself maintenance
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.Remove the oil fille r cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may ne ed to be
refilled in between oil maintenance intervals.
● When the engine is new, for example directly after purchasing t he vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selectionP. 730
Oil quantity (Low Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
1
2
3
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PRIUS PRIME_OM_OM47E74U_(U)
6017-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■Used engine oil
● Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so c are
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground. Call your Toyota dealer, service station or auto parts store for
information concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
● Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the v ehicle.
● Be sure the engine oil filler cap is properly tightened.