engine coolant TOYOTA PRIUS PRIME 2017 2.G User Guide

PRIUS PRIME_OM_OM47A88U_(U)
5857-3. Do-it-yourself maintenance
7
Maintenance and care
■Coolant selection
Only use “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.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31 °F [-35 °C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44 °F [-42 °C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir
caps, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
WARNING
■When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

586
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is ex tremely dirty or you are not sure of
their condition, have yo ur vehicle inspected by your Toyota dealer.
Radiator and condenser
WARNING
■When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause seri\
-
ous injuries, such as burns.
■ When the electric cooling fans are operating
Do not touch the engine compartment.
With the power switch in ON mode, t he electric cooling fans may automati-
cally start to run if the air condition ing is on and/or the coolant temperature
is high. Be sure the power switch is off when working near the electric cool-
ing fans or radiator grille.

652
PRIUS PRIME_OM_OM47A88U_(U)
8-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warning 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, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

6558-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)
8
When trouble arises
Slip indicator lightIndicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
→ Have the vehicle inspected by your Toyota dealer
immediately.
The light will flash when the ABS, VSC or TRAC system is
operating.
High coolant temperat ure warning light
• When the light flashes:
Indicates that the engine coolant temperature is too high
The light changes from a flashing to a solid light when
the temperature further increases
→ Immediately stop the vehicle in a safe place. ( →P. 700)
• When the light comes on without flashing: Indicates a malfunction in the exhaust heat recirculator
system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
(If equipped)
ICS OFF indicator
Indicates a malfunction in the Intelligent Clearance Sonar
function
→ Have the vehicle inspected by your Toyota dealer.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the Intelligent Clearance Sonar function is turned off ( →P. 431)
• The light will come on when the Intelligent Clearance Sonar function is operating ( →P. 435)
• The light will flash when the system cannot be temporar- ily used ( →P. 439)
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 1.7 gal.
(6.4 L, 1.4 Imp.gal.) or less
→ Refuel the vehicle.
Warning lightWarning light/Details/Actions

7038-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)
8
When trouble arises
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check if “Hybrid System
Overheated” is shown on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the message appears again frequently, contact your Toyota
dealer.
WARNING
■ To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the “Accessory”,
“Ignition ON” or mileage display ( →P. 197) on the main display and the
“READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fans may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir caps while the hybrid system and radi-
ator are hot.
High temperature steam or coolant could spray out.
6

7048-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47A88U_(U)
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additive.

714
PRIUS PRIME_OM_OM47A88U_(U)
9-1. Specifications
*: The coolant capacity is a reference quantity.If replacement is necessary, contact your Toyota dealer.
Cooling system
Capacity*
Gasoline
engine6.3 qt. (6.0 L, 5.3 Imp.qt.)
Power
control unit1.6 qt. (1.5 L, 1.3 Imp.qt.)
Coolant type
Use either of the following: • “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-C9
Gap0.035 in. (0.9 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

726
PRIUS PRIME_OM_OM47A88U_(U)
9-1. 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 auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available 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

769Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Clock ......................................... 180Adjustment ............................ 185
Coat hooks ............................... 540
Combination meter .................. 180 Clock adjustment .................. 185
Main display .......................... 196
Multi-information display ....... 205
Warning lights and
indicators ............................ 188
Condenser ................................ 586
Console box ............................. 519
Consumption screen ....... 250, 256
Coolant ..................................... 584 Capacity ................................ 714
Checking ............................... 584
Preparing and checking before winter....................... 482
Cooling system ........................ 584 Engine overheating ............... 700
Hybrid system overheating ... 702
Cruise control .......................... 391 Dynamic radar cruise control with full-speed range .......... 391
Cup holders.............................. 520
Curtain shield airbags ............... 36
Customizable features ............ 732
Daytime running light system .................................... 341
Deck board ............................... 523
Defogger Outside rear view
mirrors ........................ 491, 502
Rear window ................. 491, 502
Windshield .................... 491, 501 Dimension ................................ 708
Dinghy towing.......................... 323
Display
BSM (Blind Spot Monitor) ..... 408
Drive information .................. 207
Dynamic radar cruise control with full-speed range .......... 391
Energy monitor ..... 208, 247, 253
Head-up display.................... 238
Intelligent Clearance Sonar.................................. 435
Intuitive parking assist .......... 421
LDA (Lane Departure Alert with steering control) .......... 385
Main display.......................... 196
Multi-information display ....... 205
Pre-collision warning ............ 369
S-APGS (Simple Advanced Parking Guidance
System) .............................. 446
Warning messages ............... 663
Do-it-yourself maintenance .... 574
Door courtesy lights ............... 515 Location ................................ 515
Wattage ................................ 717
Doors ................................ 267, 273 Automatic door locking
and unlocking system......... 270
Back door ............................. 273
Door glasses......................... 300
Door lock .............................. 267
Open door warning buzzer ... 655
Open door warning light ....... 655
Outside rear view mirrors ..... 298
Rear door child-protectors .... 270
Side doors ............................ 267
Side windows........................ 300
D
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

771Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Engine coolant ......................... 584Capacity ................................ 714
Checking ............................... 584
Preparing and checking before winter....................... 482
Engine oil ................................. 581 Capacity ................................ 712
Checking ............................... 581
Oil pressure warning light ..... 653
Preparing and checking before winter....................... 482
Engine switch .......................... 324 Auto power off function ......... 326
Changing the power switch modes...................... 326
If your vehicle has to be stopped in an emergency ... 645
Starting the hybrid system .... 324
EPS (Electronic Power Steering)................................. 477
Function ................................ 477
Warning light ......................... 654
EV auto mode............................. 79
EV driving range ...................... 100
EV mode ..................................... 79
EV/HV mode selection switch ....................................... 82
Event data recorder (EDR) ........ 11
Exhaust gas precautions .......... 56
Flat tire...................................... 671
Floor mats .................................. 26
Fluid Brake .................................... 716
Transmission ........................ 715
Washer ................................. 592
Fog lights ................................. 348 Replacing light bulbs............. 640
Switch ................................... 348 Footwell lights ......................... 515
Front doors .............................. 267
Front passenger occupant
classification system .............. 50
Front passenger’s seat
belt reminder light................. 656
Front seats ............................... 287 Adjustment............................ 287
Cleaning ............................... 561
Correct driving posture ........... 28
Head restraints ..................... 291
Seat heaters ......................... 513
Front side marker lights ......... 338 Light switch ........................... 338
Replacing light bulbs ............ 640
Front turn signal lights ........... 336 Replacing light bulbs ............ 640
Turn signal lever ................... 336
Fuel ........................................... 356 Capacity................................ 710
Fuel gauge............................ 196
Information............................ 718
Refueling .............................. 356
Type...................................... 710
Warning light......................... 655
Fuel consumption ... 218, 250, 256 Average fuel consumption .... 218
Current fuel consumption ..... 256
Fuel filler door ......................... 356 Opener.................................. 358
Refueling .............................. 356
When the fuel filler door cannot be opened .............. 359
Fuses ........................................ 630
Garage door opener ................ 541
Glove box ................................. 519
F
G