1999 Pontiac Montana Owner's Manual - Page 17
1999 Pontiac Montana Manual
Page 17 highlights
yellowblue Replacing the Split Bench Sections Don't put the sections of the bench seat in so they face rearward because they won't latch that way. If you want more storage room behind the seat, adjust each section by sliding it forward. The split benches have seat position labels, located on the back of each seat, showing where the seat must go. Follow that diagram. D The left (40) section of the 40/60 split bench uses the A and B sets of floor cups. D The right (60) section of the 40/60 split bench uses the C and D sets of floor cups. 6. To unlatch the front latches, squeeze the angled latch release bar toward the straight crossbar. 7. Remove the seat by rocking it slightly toward the rear of the vehicle and then pulling it out. Repeat these steps for the other section of the split bench seat. D The left section of the 50/50 split bench uses the G and H sets of floor cups. D The right section of the 50/50 split bench uses the I and J sets of floor cups. See "Seat Controls" in the beginning of this section for more details. The seat must be placed in the proper location for the legs to attach correctly. Make sure the seat is in the full rear position before beginning this procedure. 1-11