1998 GMC Suburban Owner's Manual - Page 62

Infants need complete support,including support for the head and neck. This is necessary because an infant's neck is weak and its head weighs so much compared with the rest of its body. In a crash, an infant in a rear-facing restraint settles into the restraint, so the crash forces can be distributed across the strongest part of the infant's body, the back and shoulders. A baby should be secured in an appropriate infant restraint. This is so important that many hospitals toda:y won't release a newborn infant to its parents unless there is an infant restraint available for the baby's first tr'ip in a motor vehicle. ~. Never hold a baby in your arms while riding in a vehicle. A baby doesn't weigh much until a crash. During a crash a baby will become so heavy you can't hold it. For example, in crash a CAUTION: (Continued) -- 1-50