821-2. Hybrid system
IS300h_EE(OM53D89E)
There is an air intake vent on the right
side of the rear seatback for the pur-
pose of cooling the hybrid battery
(traction battery). If the vent becomes
blocked, the hybrid battery may over-
heat, leading to a reduction in hybrid
battery output.
When a certain level of impact is detect ed by the impact sensor, the emergency
shut off system blocks the high voltage current and stops the fuel pump to mini-
mize the risk of electrocution and fuel leakage. If the emergency shut off system
activates, your vehicle will not restart. To restart the hybrid system, contact any
authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer.
A message is automatically displayed wh en a malfunction occurs in the hybrid
system or an improper operation is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
( P. 581)
Hybrid battery (traction battery) air intake vent
Emergency shut off system
Hybrid warning message
253
4
Driving
IS300h_EE(OM53D89E)
4-4. Refueling
●Close all the doors and windows, and turn the power switch off.
●Confirm the type of fuel.
■Fuel types
P. 646
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicl e has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
