"Maintenance Required for Traction Battery Cooling Parts See Own-
er's Manual"
Cause Remedy
The air intake vent or filter of the hy-
brid battery (traction battery) may
be clogged, the air intake vent may
be blocked, or there may be a gap
in the duct. Therefore, perform the
following correction procedure.
● If the air intake vent or filter of the hybrid
battery (traction battery) is dirty, clean
them.
● If the warning message is shown when
the air intake vent and filter the hybrid
battery (traction battery) are not dirty,
have the vehicle inspected at your Lexus
dealer.
Related Links
Cleaning the air intake vent and filter(P. 541)
"EV Mode Unavailable"
Cause
Remedy
The EV drive mode is not available.
The reason the EV drive mode is not available (the vehicle is
idling, battery charge is low, vehicle speed is higher than the
EV drive mode operating speed range or accelerator pedal is
depressed too much) may be displayed.
Use the EV drive
mode when it be-
comes available.
"EV Mode Deactivated"
Cause
Remedy
The EV drive mode is not available.
The reason the EV drive mode is not available (the
battery charge is low, vehicle speed is higher than the
EV drive mode operating speed range or accelerator
accelerator pedal is depressed too much) may be dis-
played.
Drive the vehicle for a
while before attempting
to turn on the EV drive
mode again.
9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter
628
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