engine coolant TOYOTA PRIUS 2008 2.G User Guide

456
5-2. Steps to take in an emergency
PRIUS_U_(L/O_0802)
If your vehicle overheats
Correction proceduresStop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine and carefully lift the hood.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( P. 365)
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the engine coolant temperature gauge begins to
fall and then stop the engine.
If the fan is not operating: Stop the hybrid system immediately and call your local Toy-
ota dealer.
After the hybrid system has
cooled down sufficiently, check
the coolant level and inspect the
radiator core (radiator) for any
leaks.
The following may indicate that your vehicle is overheating:
The high engine coolant temperature warning light comes on:
The engine may be overheating.
Follow the correction procedure as described blow.
STEP1
STEP2
STEP3
STEP4
ITY52P018
STEP5

5
When trouble arises
457
5-2. Steps to take in an emergency
PRIUS_U_(L/O_0802)
Add coolant if required.
Water can be used in an emer-
gency measure if coolant is
unavailable. (
P. 467)
Have the vehicle checked at your nearest Toyota dealer as soon as
possible.
ITY52P019
STEP6
■Overheating
In the following situations, your vehicle may be overheating.
● High coolant temperature warning light is displayed on the touch screen.
● Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
● Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.

458 5-2. Steps to take in an emergency
PRIUS_U_(L/O_0802)
NOTICE
■When adding engine 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 engine too
quickly can cause damage to the hybrid system.

467
6-1. Specifications
6
Vehicle specifications
PRIUS_U_(L/O_0802)
Cooling system
Ignition system
Capacity
Gasoline engine
Power control unit
9.0 qt. (8.6 L, 7.5 lmp.qt.)
2.9 qt. (2.7 L, 2.4 lmp.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 organic acid technology
Do not use plain water alone.
Spark plug
Make DENSO NGK SK16R11
IFR5A11
Gap
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

481
6-1. Specifications
6
Vehicle specifications
PRIUS_U_(L/O_0802)
Warning: The temperature grades for this tire are established for a
tire that is properly inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can caus e heat buildup and possible tire fail-
ure.
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
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended
inflation pressure Cold tire inflation pressure recommended by a
manufacturer.
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of trans-
mission, 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
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows

502 Alphabetical index
PRIUS_U_(L/O_0802)
Engine compartment cover..... 365
Engine/power control unit coolant
Capacity ................................467
Checking ............................... 371
Preparing and checking before winter ....................... 177
Engine oil Capacity ................................466
Checking ............................... 365
Preparing and checking before winter ....................... 177
Engine oil maintenance data ......................................... 369
Event data recorder .................424
Floor mats.................................335
Fluid
Brake .....................................373
Washer .................................. 378
Fog lights
Switch.................................... 156
Wattage .................................471
Front passenger occupant
classification system ............101
Front passenger’s seat belt reminder light.........................429
Front seats Adjustment .............................. 57
Front turn signal lights
Wattage .................................471
Fuel Capacity ................................464
Fuel gauge ............................ 143
Gas station information .........512
Information ............................ 472
Refueling ................................. 78
Type ......................................472
Fuel door.....................................78
Fuel filler door ............................ 78
Fuses......................................... 398 Garage door opener ................ 339
Gas station information .......... 512
Gauges...................................... 143
Glove box ................................. 323
Hands-free system
(for cellular phone) ................ 272
Head restraints........................... 62
Headlights
Discharge headlights precautions ......................... 414
Replacing light bulbs ............. 407
Switch ................................... 150
Wattage................................. 471
Heaters Side mirror ............................ 217
Hood.......................................... 361
Hooks
Cargo .................................... 336
Hybrid system Emergency shut off system..... 27
Energy monitor /
consumption screen ............. 27
High-voltage components ....... 26
Power switch ......................... 130
Illuminated entry system......... 318
Immobilizer system ................... 81
I/M test ...................................... 356
Identification Engine ................................... 463
Vehicle .................................. 463
Ignition switch.......................... 130
Indicator lights ......................... 146
Initialization Items to initialize ................... 491
Inside rear view mirror .............. 71
Instrument panel light control .................................... 144
F
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506
PRIUS_U_(L/O_0802)
What to do if...
What to do if...
A tire puncturesP. 438If you have a flat tire
The engine does not start
P. 8 1Hybrid system immobilizer system
P. 448If the engine will not start
P. 451If the 12 volt battery is discharged
The high coolant temperature
warning light comes on.
Steam can be seen coming
from under the hood
P. 456If your vehicle overheats
The key is lostP. 449If you lose your keys
The 12 volt battery runs outP. 451If the 12 volt battery is discharged
The doors cannot be lockedP. 5 1Doors
The horn begins to soundP. 8 4Alarm
The vehicle is stuck in mud or
sandP. 459If the vehicle becomes stuck
The warning light or indicator
light comes onP. 426If the warning light turns on