Lexus RX450H Manual page 660

5-2. Steps to take in an emergency
STEP 7
If the fans are not operating:
Stop the hybrid system immediately and contact any
authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.

If "HYBRID SYSTEM OVERHEAT" is shown on the multi-
information display
STEP 1
STEP 2
Stop the hybrid system and carefully lift the hood.
STEP 3
622
RX450h_EE
Stop the vehicle in a safe place.
Ensure that the opening for the
oil cooler is not blocked by dirt
or any other foreign substance.
If the opening is not blocked or
if the message does not disap-
pear after some time the open-
ing has been cleaned, proceed to
STEP 2.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped professional.