GMC 2003 Sierra - Manual (Page 30)

To unlalch the ball, just push the button on the buckle.
The belt should go becit out of Ihe way,
Befofe you close the dootf be sure Ihe bett is oul of the
way. If you slam Ihe door on il, you can daniage
both the belt and your vehicle.
Safety Belt Use During Pregnancy
Safety bells work for svgiyone, Including pregnant
women. Like all occupants, they are more likely to be
seriously injured if they don’t wear safety hells.
A pregnant womart should wear a lap-shoulcier beh, and
Ihs lap portion should be wom as low
55 possible,
below the roundIhrougboul the pregnancy^
1-2Э