Toyota 2013 Camry Hybrid Manual page 456

NOTICE
When adding engine/power control unit 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 hybrid sys-
tem too quickly can cause damage to the hybrid system.
To prevent damage to the cooling system
■
Observe the following precautions:
Avoid contaminating the coolant with foreign matter (such as sand or dust
●
etc.)
Do not use commercially available coolant additives.
●
5-2. Steps to take in an emergency
5
479