Toyota SIENNA 2022 Manual page 416

416
6-3. Do-it-yourself maintenance
NOTICE
● Be sure the engine oil filler cap
is properly tightened.
■ If oil is spilled on the engine
cover
To prevent the engine cover from
being damaged, remove any
engine oil from the engine cover
as soon as possible using a neu-
tral detergent. Do not use an
organic solvent such as brake
cleaner.
Checking the coolant
The coolant level is satisfactory
if it is between the "FULL" and
"LOW" lines on the reservoir
when the hybrid system is cold.
Engine coolant reservoir
■
A Reservoir cap
B "FULL" line
C "LOW" line
If the level is on or below the "LOW"
line, add coolant up to the "FULL"
line. (P.509)
Power control unit coolant
■
reservoir
A
Reservoir cap
B "FULL" line
C "LOW" line
If the level is on or below the "LOW"
line, add coolant up to the "FULL"
line. (P.511)
■ 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 tem-
perature: -31°F [-35°C])
Canada:
"Toyota Super Long Life Coolant" is
a mixture of 55% coolant and 45%
deionized water. (Minimum tem-
perature: -44°F [-42°C])
For more details about coolant, con-
tact your Toyota dealer.
■ If the coolant level drops within
a short time of replenishing
Visually check the radiators, hoses,
engine/power control unit coolant
reservoir caps, drain cock and water
pump.
If you cannot find a leak, have your
Toyota dealer, test the cap and