1996 Buick Century Owner's Manual - Page 15

But don't have a seatback reclined if your vehicle is moving. Sitting in a reclined position when your vehicle is in motion can be dangerous. Even you buckle if up, your safety beltscan't do their job when 4 you're reclined like this. The shoulder belt can't do its job-because it won't be against your body. Instead, it will bein front of you. In a crashyou could go inta it, receiving neckor other injuries. The lap.belt can't do its job either. In a crashthe belt couldgo up over your abdomen. The belt forces would be there, not at your pelvic bones. This could causeserious internal injuries. For properprotection when the vehicle is in motion, havethe seatback upright. Then sit well back in the seat and your safety wear belt properly. 1-3