2009 Toyota Tundra Owners Manual - Page 108
2009 Toyota Tundra Manual
Page 108 highlights
1-3. Adjustable components (seats, mirrors, steering wheel) n Adjusting the height of the belt Front seats (Double Cab and CrewMax models) Down 1 Push the lock release button and slide the height adjuster down. Before driving Up Move the height adjuster up as needed until you hear a click. 77