Lexus 2012 RX350, Owner'S Manual

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5
Wh
en trouble
aris
es
937
5-2. Steps to take in an emergency
NOTICE
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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 system too
quickly can cause damage to the hybrid system.
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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.