coolant TOYOTA PRIUS PLUS 2013 User Guide

464 5-2. Steps to take in an emergency
PRIUS +_OM_OM47841E_(EE)
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
High coolant temperature warning light
Indicates that the coolant temperature is too high
Changes from a flashing to a solid light when the engine
coolant temperature increases.
Hybrid system warning light (warning buzzer)
Indicates a malfunction in the hybrid system

522
5-2. Steps to take in an emergency
PRIUS +_OM_OM47841E_(EE)
If your vehicle overheats
Correction procedures
If the high coolant temperature warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
The following may indicate that your vehicle is overheating.
The high coolant temperature warning light (P. 464) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
The hybrid system overheat warning light (P. 469) comes on.
Steam comes out from under the hood.
STEP 1
STEP 2

5
523 5-2. Steps to take in an emergency
When trouble arises
PRIUS +_OM_OM47841E_(EE)After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Toyota dealer or repairer, or
another duly qualified and
equipped professional.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
STEP 3
STEP 4
STEP 5

524 5-2. Steps to take in an emergency
PRIUS +_OM_OM47841E_(EE)Start the hybrid system and turn the air conditioning system
on to check that the radiator cooling fans operate and to
check for coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Confirm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
STEP 6
STEP7

5
525 5-2. Steps to take in an emergency
When trouble arises
PRIUS +_OM_OM47841E_(EE)If the hybrid system overheat warning light comes on
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Toyota dealer or repairer, or
another duly qualified and
equipped professional.
STEP 1
STEP 2
STEP 3

526 5-2. Steps to take in an emergency
PRIUS +_OM_OM47841E_(EE)The coolant level is satisfactory if
it is between the “F” and “L” lines
on the reservoir.
Reservoir
“F”
“L”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and check for the instrument cluster.
If the hybrid system overheat warning light does not turn off:
Stop the hybrid system and contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
If the hybrid system overheat warning light does not come on:
Have the vehicle inspected at the nearest any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
STEP 4
STEP 5
STEP 6

5
527 5-2. Steps to take in an emergency
When trouble arises
PRIUS +_OM_OM47841E_(EE)
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
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, caus-
ing serious injuries such as burns.
After the hybrid system has been turned off, check that the indicator on the
“POWER” switch 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 fans,
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 cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem 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 additives.

541 6-1. Specifications
6
Vehicle specifications
PRIUS +_OM_OM47841E_(EE)
Cooling system
Ignition system
Capacity
Gasoline
engine
Without an exhaust heat recovery system
6.5 L (6.9 qt., 5.7 Imp.qt.)
With an exhaust heat recovery system
6.9 L (7.3 qt., 6.1 Imp.qt.)
Power
control
unit2.7 L (2.9 qt., 2.4 Imp.qt.)
Coolant typeUse 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 technol-
ogy
Do not use plain water alone.
Spark plug
Make DENSO SC20HR11
Gap 1.1 mm (0.043 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

560 Alphabetical index
PRIUS +_OM_OM47841E_(EE)
Engine
Accessory mode ................... 208
Compartment ........................ 397
Hood ..................................... 391
How to start the hybrid
system ................................ 206
Identification number............. 535
If the hybrid system will not
start..................................... 510
Ignition switch ....................... 206
Overheating .......................... 522
“POWER” switch ................... 206
Engine coolant
Capacity ................................ 541
Checking ............................... 402
Preparing and checking
before winter ....................... 313
Engine/power control unit coolant
Capacity ................................ 541
Checking ............................... 402
Preparing and checking
before winter ....................... 313
Engine oil
Capacity ................................ 537
Checking ............................... 398
Preparing and checking
before winter ....................... 313
EPS............................................ 291
EV drive mode switch.............. 213Floor mats ................................ 369
Fluid
Brake .................................... 543
Washer ................................. 405
Fog lights
Replacing light bulbs............. 439
Switch ................................... 258
Wattage ................................ 545
Foot lights ................................ 341
Front fog lights
Replacing light bulbs............. 439
Switch ................................... 258
Wattage ................................ 545
Front passenger’s seat belt
reminder light ........................ 471
Front position lights
Switch ................................... 253
Front seats
Adjustment .............................. 98
Flattening seatbacks ............... 99
Front turn signal lights
Replacing light bulbs............. 439
Switch ................................... 225
Wattage ................................ 545
Fuel
Capacity ................................ 536
Fuel gauge ............................ 228
Information ............................ 546
Refueling............................... 134
Type ...................................... 546
Fuel door .................................. 134
Fuel filler door.......................... 134
Fuses ........................................ 427F

566 Alphabetical index
PRIUS +_OM_OM47841E_(EE)
USB port*
Vanity lights
Vanity lights........................... 357
Wattage................................. 545
Vanity mirrors .......................... 357
Vehicle identification
number ................................... 535
Vehicle stability control .......... 291
VSC ........................................... 291
Warning buzzers
Brake system ........................ 463
Open door ............................ 470
Seat belt reminder................. 471Warning lights
Anti-lock brake system
(ABS) .................................. 465
Automatic headlight leveling
system ................................ 468
Brake system ................ 463, 466
Charging system ................... 464
Cruise control........................ 468
Electric power steering
system ................................ 465
High coolant temperature ..... 464
Hybrid battery indicator
light ..................................... 467
Hybrid system ....................... 464
Hybrid system overheat ........ 469
LED headlights ..................... 468
Low engine oil pressure ........ 464
Low fuel level ........................ 470
Low hybrid battery
(traction battery) ................. 470
Malfunction indicator lamp .... 465
Open door ............................. 470
Parking lock system .............. 467
P position request ................. 469
Pre-crash safety system ....... 466
Radar cruise control.............. 468
Seat belt warning light .......... 471
Slip indicator ......................... 466
Smart entry & start system ... 473
SRS airbags.......................... 465
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