2007 TOYOTA PRIUS engine coolant

391
If you are a skilled do−it−yourself
mechanic, the Toyota service manuals are
recommended. Please be aware that
do− it−yourself maintenance can affect your
warranty coverage. See “Owner ’s Warranty
Information Booklet” or “Owner ’s Manual
Supplement” for the details.
General maintenance
Listed below are the general maintenance
items that should be performed as fre-
quently as specified. In addition to check-
ing the items listed, if you notice any
unusual noise, smell or vibration, you
should investigate the cause or take your
vehicle to your Toyota dealer or a quali-
fied service shop immediately. It is recom-
mended that any problem you notice be
brought to the attention of your dealer or
the qualified service shop for their advice.
CAUTION
Make these checks only with ade-
quate ventilation if you run the en-
gine.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See page 422 for additional informa-
tion. Coolant level
Make sure the coolant level is between
the “FULL” and “LOW” lines on the see
−
through reservoir when the hybrid system
is cold. See page 406 for additional infor-
mation.
Radiator, condenser and hoses
Check that the front of the radiator and
condenser are clean and not blocked with
leaves, dirt, or insects. See page 408 for
additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See page 408 for additional information.
Engine oil level
Check the level on the dipstick with the
engine turned off and the vehicle parked
on level spot. See page 404 for additional
information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” on
page 324.)

393
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See Sec-
tion 8
−2 for additional information.
When checking the tires, make sure
no nuts are missing, and check the
nuts for looseness. Tighten them if
necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the “Scheduled Maintenance
Guide” or “Owner ’s Manual Supple-
ment”.) See page 413 for additional
information.
Be on the alert for changes in perfor-
mance, sounds, and visual tip −offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (however,
water dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat −looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Coolant temperature continually higher
than normal If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

396
Engine compartment overview
1. Windshield washer fluid tank
2. Brake fluid reservoir
3. Engine oil filler cap
4. Engine coolant reservoir
5. Inverter coolant reservoir
6. Fuse block
7. Radiator and condenser
8. Engine oil level dipstick
9. 12 volt battery(in luggage compartment)
81p001g

399
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer
for information concerning recycling
or disposal.
Take care when filling the brake
fluid reservoir because brake fluid
can harm your eyes and damage
painted surfaces. If fluid gets in
your eyes, flush your eyes with
clean water immediately. If you still
feel uncomfortable with your eyes,
go to the doctor.
When servicing the vehicle with the
smart entry and start system, be
sure to keep the smart key away
from the vehicle. If the key is left
in the vehicle, the hybrid system
may start by pressing the “POWER”
switch with the brake pedal de-
pressed.
NOTICE
Remember that batteries and igni-
tion cable carry high currents or
voltages. Be careful of accidentally
causing a short circuit.
 Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. “Toyota Super Long Life
Coolant” is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).
If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Do not pry the outer electrode of
spark plug against the center elec-
trode.
 Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
 If the brake fluid is spilled on the
vehicle, be sure to wash it off with
water to prevent it damage to parts
or paint.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.
 When closing the hood, check to
see that you have not forgotten any
tools, rags, etc.

401
Parts and tools
Here is a list of parts and tools you will
need to perform do−it−yourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
Engine oil ILSAC multigrade having vis-
cosity proper for your climate
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE COOLANT LEVEL
Parts (if level is low):
“Toyota Super Long Life Coolant” or
similar high quality ethylene glycol
based non− silicate, non −amine, non− ni-
trite, and non −borate coolant with long −
life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a
mixture of 50% coolant and 50% deion-
ized water (for the U.S.A.) or 55%
coolant and 45% deionized water (for
Canada).
Tools:
Funnel (only for adding coolant) CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING 12 VOLT BATTERY CON-
DITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as
original
ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze (for
winter use) Tools:
Funnel
REPLACING LIGHT BULBS
Parts:
Bulb with same number and wattage
rating as original (See charts in “Re-
placing light bulbs–” on page 422.)
Tools:
Screwdriver

403
DOITYOURSELF MAINTENANCE
Engine and Chassis
Checking the engine oil level404
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the coolant level 406
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the radiator and condenser 408
. . . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid 408
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. . . .
Checking tire inflation pressure 409
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires 411
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 413
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . .
Installing snow tires and chains 414
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing wheels 415
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. . . . . . .
Aluminum wheel precautions 416
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8– 2

406
Oil identification mark
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is added to some oil con-
tainers to help you select the oil you
should use.To ensure excellent lubrication perfor-
mance for your engine, “Toyota Genuine
Motor Oil” is available, which has been
specifically tested and approved for all
Toyota engines.
Please contact your Toyota dealer for fur-
ther details about “Toyota Genuine Motor
Oil”.
82P111
Engine coolant reservoir
82P112
Inverter coolant reservoir
Checking the coolant level

408
Toyota recommends “Toyota Super Long
Life Coolant”, which has been tested to
ensure that it will not cause corrosion nor
result in malfunction of your coolant sys-
tem with proper usage. “Toyota Super
Long Life Coolant” is formulated with
long−life hybrid organic acid technology
and has been specifically designed to
avoid cooling system malfunction on
Toyota vehicles.
Please contact your Toyota dealer for fur-
ther details. If either of the above parts is extremely
dirty or you are not sure of their condi-
tion, take your vehicle to a Toyota dealer.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser when the engine is hot.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
Checking brake fluid
82p002b
To check the fluid level, simply look at
the seethrough reservoir. The level
should be between the “MAX” and
“MIN” lines on the reservoir.
It is normal for the brake fluid level to go
down slightly as the brake pads wear or
when the fluid level in the accumulator is
high.
Checking the radiator and
condenser