Chevrolet Uplander Owner's Manual page 50

Every time infants and young children ride in vehicles,
they should have the protection provided by appropriate
restraints. Young children should not use the vehicle's
adult safety belts alone, unless there is no other choice.
Instead, they need to use a child restraint.
1-44
CAUTION:
{
People should never hold a baby in their
arms while riding in a vehicle. A baby does
not weigh much — until a crash. During a
crash a baby will become so heavy it is not
possible to hold it. For example, in a crash at
only 25 mph (40 km/h), a 12 lb (5.5 kg) baby
will suddenly become a 240 lb (110 kg) force
on a person's arms. A baby should be secured
in an appropriate restraint.