1997 Cadillac Seville Owner's Manual - Page 28

The lap part of the belt shouldbe worn low and snugon the hips,just touching the,Wghs. In a crash, this applies force to thestrong pelvic bones. And you'd be less likely to slide under thelap belt. If you slid under it, the belt would apply force at your abdomen. This could cause serious or even fatal injuries.The shoulder belt shouldgo over the shoulder and across the chest. These of the parts body are best able to take belt restraining forces. The safety belt locks if there's a sudden stopor crash.