Buick Lucerne 2007 Owner's Manual page 411

2. Turn the jack handle clockwise to raise the
jack lift head.
CAUTION:
{
Raising your vehicle with the jack
improperly positioned can damage the
vehicle and even make the vehicle fall. To
help avoid personal injury and vehicle
damage, be sure to fit the jack lift head
into the proper location before raising the
vehicle.
3. Put the jack into the flange in the frame which
is located near each wheel well. The flanges
are accessible through openings in the
plastic trim at the bottom of the vehicle. The
front opening is about 8 inches (20 cm)
back from the front wheel well. The rear
opening is about 3 inches (8 cm) forward from
the rear wheel well.
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