Toyota CAMRY HYBRID 2021 Owner's Manual page 459

Coolant
Engine coolant reservoir

The coolant level is satisfactory if it is between the "F" and "L" lines on
the reservoir when the hybrid system is cold.
Reservoir cap
1
"F" line
2
"L" line
3
If the level is on or below the "L"
line, add coolant up to the "F" line.
(P. 580)
Power control unit coolant reservoir

The coolant level is satisfactory if it is between the "FULL" and "LOW"
lines on the reservoir when the hybrid system is cold.
Reservoir cap
1
"FULL" line
2
"LOW" line
3
If the level is on or below the
"LOW" line, add coolant up to the
"FULL" line. (P. 580)
■
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.
"Toyota Super Long Life Coolant" is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35C [-31F])
For more details about engine coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiators, 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.
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6-3. Do-it-yourself maintenance
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