Toyota 2013 Prius Owner's Manual page 202

STEP 3
STEP 4
Closing the fuel tank cap
PRIUS PHV_OM_OM47787U_(U)
Turn the fuel tank cap slowly
to open.
Hang the fuel tank cap on the
back of the fuel filler door.
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.
1-7. Refueling
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