2015 TOYOTA PRIUS PLUG-IN coolant level

439
4-2. Maintenance
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
General maintenance
Engine compartment
ItemsCheck points
Brake fluidIs the brake fluid at the correct
level? (oP. 4 7 2 )
Engine/power control unit coolant
Is the engine/power control unit
coolant at the correct level?
(oP. 4 6 9 )
Engine oilIs the engine oil at the correct
level? (oP. 4 6 5 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenser
The radiator and condenser
should be free from foreign
objects. (oP. 4 7 1 )
Washer fluidIs there sufficient washer fluid?
(oP. 4 7 4 )
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Owner’s Warranty Informa-
tion Booklet” or “Owner’s Manual Supplement/Scheduled
Maintenance Guide”. It is recommended that any problem you notice
should be brought to the attention of your Toyota dealer or qualified
service shop for advice.

445
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
4-3. 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
(oP. 4 7 6 )
•Grease
•Conventional wrench
(for terminal clamp bolts)
Brake fluid level (oP. 4 7 2 )
•FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
•Funnel (used only for adding
brake fluid)
Engine/power control unit coolant
level (oP. 4 6 9 )
•“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 Cool-
ant” is pre-mixed with 50% cool-
ant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool-
ant” is pre-mixed with 55% cool-
ant and 45% deionized water.
•Funnel (used only for adding cool-
ant)

464
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
Engine compar tment
■12-volt battery
oP. 4 7 6
Engine coolant reservoir
(oP. 4 6 9 )
Engine oil level dipstick
(oP. 4 6 5 )
Engine oil filler cap
(oP. 4 6 6 )
Power control unit coolant
reservoir (oP. 4 6 9 )
Brake fluid reservoir
(oP. 4 7 2 )
Fuse box (oP. 4 9 9 )
Radiator (oP. 4 7 1 )
Condenser (oP. 4 7 1 )
Electric cooling fans
Washer fluid tank (oP. 4 7 4 )

469
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
Coolant
The coolant level is satisfactory if it is between the full (“FULL” or “F”)
and low (“LOW” or “L”) lines on the reservoir when the hybrid system
is cold.
Engine coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (oP. 6 2 5 )
Power control unit coolant reservoir
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(oP. 6 2 5 )
ITO43P111

470
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
■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% deionized water. (Minimum temperature: -31qF [-35qC])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant
and 45% deionized water. (Minimum temperature: -44qF [-42qC])
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 reser-
voir 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.
CAUTION
■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.

608
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
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.
Sta rt the hyb rid syste m a nd turn the air co nditioning 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:
St op the hybrid system immediately and contact your
To y o t a d e a l e r .
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
ITO43P111
STEP 4
ITO52P130
STEP 5
6 ÉTAPE
STEP7

5
When trouble arises
609
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
■If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
St op the ve hicle in a sa fe pla ce.
St op the hybrid system and care fu lly lift the h ood .
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 your Toyota
dealer.
The coolant level is satisfactory if
it is between the “F” and “L” lines
on the reservoir.
Reservoir
“F”
“L”
STEP 1
STEP 2
STEP 3
STEP 4

686
Alphabetical index
PRIUS PHV_OM_OM47A11U_(U)
Tonneau cover .........................410
Tools .........................................454
Total load capacity...................354
Touch tracer display ................263
Towing
Dinghy towing........................ 361
Emergency towing.................532
Trailer towing.........................360
TRAC .........................................333
Traction control........................333
Trailer towing ...........................360
Transmission
Hybrid transmission............... 249
P position switch ...................252
Trip information .......................279
Trip meter .................................278
Turn signal lights
Replacing light bulbs ............. 511
Switch....................................259
Wattage .................................628
USB port*................................. 387
Vanity lights
Vanity lights ...........................399
Wattage .................................628
Vanity mirrors...........................399
Vehicle data recordings ............24
Vehicle identification
number ................................... 619
Vehicle proximity notification
system ......................................38
Vehicle stability control...........333
VSC............................................333
Warning buzzers
Brake system ........................ 537
Open door ............................ 541
Seat belt reminder................. 541
Warning lights
Anti-lock brake system
(ABS) .................................. 539
Automatic headlight leveling
system ................................ 540
Brake system ................ 537, 540
Charging system ................... 538
Cruise control ........................ 540
Electric power steering
system ................................ 539
High coolant temperature...... 538
Hybrid system ....................... 539
Low fuel level ........................ 541
Low tire pressure .................. 542
Malfunction indicator lamp .... 539
Open door ............................. 541
Pre-collision system .............. 540
Radar cruise control. ............. 540
Seat belt warning light........... 541
Slip indicator ......................... 540
SRS airbags .......................... 539
Tire pressure warning light.... 542
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