2003 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 35

The safety belt also locks if you pull the belt very quickly nlrt nf the retractor. I s - YOL -an be seriously rt i our shoulderbelt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. I I I The lap part of the belt should be worn low and snug on the hips, just touching the thighs. In a crash, this applies force to the strong pelvic bones. And you'd be less likely to slide under the lap 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 should go over the shoulder and across the f chest. These parts o the body are best able to take belt restraining forces. The safetv belt locks if there's a sudden stop or a crash. 1-28