Lexus GS 450h2011 Manual page 583

NOTICE
When adding coolant
■
Wait until the hybrid system has cooled down before adding coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid system too
quickly can cause damage to the hybrid system.
GS_HV_U (OM30C14U)
May 21, 2010 2:41 pm
5-2. Steps to take in an emergency
5
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