2003 Buick Regal Owner's Manual - Page 13
2003 Buick Regal Manual
Page 13 highlights
Rear Seats Split Folding Rear Seat If your vehicle has this feature it allows you to have access to the trunk from inside of your vehicle. Pull forward on the seat tab, located on the front of the rear seat, to fold the rear seatback down. To return the seatback to its original position, push it back up and make sure it latches. 1-6
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