Lexus UX 250h 2020 Owner's Manual page 70

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1-4. Hybrid system
battery) may overheat, leading to a
reduction in hybrid battery (traction
battery) output.
NOTICE
■ Hybrid battery (traction battery) air
intake vent
Make sure not to block the air intake
●
vent with anything, such as a seat
cover, luggage or carpet. The hybrid
battery (traction battery) may over-
heat, leading to poor fuel economy.
Clean the air intake vent regularly to
●
prevent the hybrid battery (traction
battery) from overheating.
● Do not get water or foreign materials
in the air intake vent as this may cause
a short circuit and damage the hybrid
battery (traction battery).
● A filter is installed to the air intake vent.
When the filter remains noticeably
dirty even after cleaning the air intake
vent, filter cleaning or replacement is
recommended. When cleaning or
replacing the filter, contact your Lexus
dealer.
Refer to P.365 for details on how to
clean the filter.
Emergency shut off system
When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks the
high voltage current and stops the fuel
pump to minimize the risk of electrocu-
tion and fuel leakage. If the emergency
shut off system activates, your vehicle
will not restart. To restart the hybrid
system, contact your Lexus dealer.
Hybrid warning message
A message is automatically displayed
when a malfunction occurs in the
hybrid system or an improper opera-
tion is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
If a warning light comes on, a warning
■
message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In this
case, try to start the system again. If the
"READY" indicator does not come on, con-
tact your Lexus dealer.