If you have the Crew Cab® model, your vehicle may be equipped with rear door security locks. With this feature, you can lock the rear doors so they can't be opened from the inside by passengers.
The security lock lever is located on the inside edge of each rear door.
To use the security locks, do the following:
If you want to open the rear door when the security lock is on, unlock the door and open the door from the outside. To return the rear doors to normal use, disengage the locks by sliding the lever to the unlock symbol.