1997 Buick Park Avenue Owner's Manual - Page 18

But don't have a seatback reclined if your vehicle is moving. Sitting in a reclined position when vehicle is your in motioncan be dangerous. Even if you buckle up, your safety beltscan't do theirjob when you're reclined like this. The shoulder belt can't do its job. In a crash you could go into it, receiving neckor other injuries. The lapbelt can't do its job either. In a crash the belt could go up over your abdomen. The belt forces would be there, not at your pelvic bones. This could causeserious internal injuries. For proper protection when the vehicle is in motion, havethe seatback upright. Then sit well back in the seatand wear your safety belt properly. 1-6