1997 Oldsmobile Silhouette Owner's Manual - Page 13

But don't have a seatback reclined if your vehicle is moving. Sitting in areclined position whenyour vehicle is in motion can be dangerous. Even if you buckle up, yoursafety belts can't do their job when you're reclined like this. The shoulder belt can't do its because it job won't be against yourbody. Instead, it wl be in il front of you. In a crash could go into it, you receiving neckor other injuries. The lap belt can't do its either. In a crash the job belt could go up over your abdomen. The belt forces would bethere, notat your pelvic bones. This could cause serious internal injuries. For properprotection when the vehicle is m motion, have the seatback upright.Then sit well back in the seat and wear your safety belt properly.