1998 Pontiac Grand Prix Owner's Manual - Page 14
1998 Pontiac Grand Prix Manual
Page 14 highlights
Seatback Latches(2-Door Models) the the After someone gets into rear seat area, move right front seatback to its original position. Then move the seat rearward until it locks. To get out, tilt the seatback fully forward. A CAUTION: If the seatback isn't locked, could move it forward ina sudden stopor crash. That could cause injury to the person sitting there. Always press rearward on the seatback to be sure it is locked. On two-door models,the right front seat is designed to and make it easy to get in out of the rear seat. Tilt the right seatbackfully forward, The whole seat now will slide forward.If the seatwill not tilt,lift the seatback latch, located the backof the seat to the seatback on tilt forward. The whole seat will now slide forward. 1-7