Coolant Type Selection - Toyota Prius 2007 Owner's Manual

WWW.MANUALS.WS
CAUTION
The coolant heat storage tank reaches
high temperature inside. It is danger-
ous if hot coolant is discharged when
replacing. For replacement of
coolant, contact your Toyota dealer.
Look at the see−through coolant reser-
voir when the hybrid system is cold.
The coolant level is satisfactory if it is
between the "FULL" and "LOW" lines
on the reservoir. If the level is low, add
the coolant. (For the coolant type, see
"Coolant type selection" described be-
low.)
The coolant level in the reservoir will vary
with hybrid system temperature. However,
if the level is on or below the "LOW" line,
add coolant. Bring the level up to the
"FULL" line.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
WWW.MANUALS.WS
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
If the fluid in the inverter coolant reservoir
is low, there may be a problem with the
cooling system. Have the vehicle checked
the
by your Toyota dealer.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.

Coolant type selection

Use of improper coolants may damage
your cooling system.
Only use "Toyota Super Long Life Coolant"
or similar high quality ethylene glycol
based non−silicate, non−amine, non−nitrite,
and non−borate coolant
hybrid organic acid technology. (Coolant
with long−life hybrid
technology is a combination
phosphates and organic acids.)
For the U.S.A.—"Toyota Super Long Life
Coolant" is a mixture of 50% coolant and
50% deionized water. This coolant pro-
vides protection down to about −35:C
(−31:F).
For Canada—"Toyota
Coolant" is a mixture of 55% coolant and
45% deionized water. This coolant pro-
vides protection down to about −42:C
(−44:F).
Do not use plain water alone.
with long−life
organic acid
of low
Super Long Life
NOTICE
403