2013 Toyota Tundra CrewMax Owners Manual - Page 76
2013 Toyota Tundra CrewMax Manual
Page 76 highlights
1-5. Refueling Hang the fuel tank cap on the back of the fuel filler door. 1 Before driving Closing the fuel tank cap When installing the fuel tank cap, turn it until you hear a click. The cap will turn slightly to the opposite direction when released.