Toyota Highlander Hybrid 2017 Owner's Manual page 260

260
4-4. Refueling
Closing the fuel tank cap
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.
WARNING
■
When replacing the fuel tank cap
Do not use anything but a genuine Toyota fuel tank cap designed for your
vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.
HIGHLANDER_HV_U (OM48F12U)