Buick 2007 Terraza Owner's Manual page 212

If the word ON or the on symbol is lit on the
passenger airbag status indicator, it means that
the right front passenger's airbag or airbags
are enabled (may inflate).
CAUTION:
{
If the on indicator comes on when you
have a rear-facing child restraint installed
in the right front passenger's seat, it means
that the passenger sensing system has not
turned off the passenger's frontal airbag
and seat-mounted side impact airbag
(if equipped). A child in a rear-facing child
restraint can be seriously injured or killed if
the right front passenger's airbag inflates.
This is because the back of the rear-facing
child restraint would be very close to the
inflating airbag. Do not use a rear-facing
child restraint in the right front passenger's
seat if the airbag is turned on.
212
Your vehicle has a rear seat that will accommodate
a rear-facing child restraint. A label on your sun
visor says, "Never put a rear-facing child seat
in the front." This is because the risk to the
rear-facing child is so great, if the airbag deploys.
CAUTION:
{
Even though the passenger sensing
system is designed to turn off the
passenger's frontal airbag and side impact
airbag (if equipped) if the system detects
a rear-facing child restraint, no system is
fail-safe, and no one can guarantee that an
airbag will not deploy under some unusual
circumstance, even though it is turned off.
We recommend that rear-facing child
restraints be secured in the rear seat,
even if the airbag is off.