To Fold Down a Super Crew Backseat
1. Fold up the lower portion of the seat. (This moves the seatback forward a little, to get your hand between the seat back and the truck wall)
2. With your left hand palm facing toward the back of the truck and thumb down, slide your hand between the backseat and the real wall.
3. Use your thumb to lift up on the lock lever. (See photo)
4. You can also use the round end of a box wrench, instead of your thumb, to lift the lever.