801-2. Hybrid system
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There is an air intake vent on the 
side of the lower part of the rear 
left seat for the purpose of cooling 
the hybrid battery (traction bat- 
tery). If the vent becomes 
blocked, the hybrid battery may 
overheat, leading to a reduction in 
hybrid battery output. 
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 electrocution and fuel leakage. If 
the emergency shut off system activates, your vehicle will not restart. 
To restart the hybrid system, contact any authorized Toyota dealer or 
repairer, or another duly qualified and equipped professional.
■ If a warning light comes on, or the 12-volt battery 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, contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional. 
■ Running out of fuel 
When the vehicle has run out of fuel and the hybrid system cannot be started, 
refuel the vehicle with at least enough  gasoline to make the low fuel level 
warning light ( P. 407) go off. If there is only a small amount of fuel, the 
hybrid system may not be able to start. (The standard amount of fuel is about 
7.0 L [1.8 gal., 1.5 Imp.gal.], when the vehicle is on a level surface. This value 
may vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.) 
■ Electromagnetic waves 
● High voltage parts and cables on hybrid vehicles incorporate electromag- 
netic shielding, and therefore emit approximately the same amount of elec- 
tromagnetic waves as conventional gasoline powered vehicles or home
electronic appliances. 
● Your vehicle may cause sound interference in some third party-produced 
radio parts.
Hybrid battery (traction battery) air intake vent
Emergency shut off system 
2104-4. Refueling
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After refueling, turn the fuel tank 
cap until you hear a click. Once 
the cap is released, it will turn 
slightly in the opposite direction.
■ Fuel types 
 P. 474 
■ Fuel tank opening for unleaded gasoline 
To help prevent incorrect fueling, your vehicle has a fuel tank opening that 
only accommodates the special nozzle on unleaded fuel pumps.
Closing the fuel tank cap
WARNING
■ When refueling the vehicle 
Observe the following precautions while refueling the vehicle. Failure to do 
so may result in death or serious injury. 
● After exiting the vehicle and before opening the fuel door, touch an 
unpainted metal surface to discharge any static electricity. It is important to 
discharge static electricity before refueling because sparks resulting from
static electricity can cause fuel vapors to ignite while refueling. 
● Always hold the grips on the fuel tank cap and turn it slowly to remove it.  
A whooshing sound may be heard when the fuel tank cap is loosened.
Wait until the sound cannot be heard before fully removing the cap. In hot 
weather, pressurized fuel may spray out the filler neck and cause injury.