GMC 2007 Yukon XL Owner's Manual page 102

The passenger sensing system is designed to turn
off the right front passenger's airbag if:
•
the right front passenger seat is unoccupied
•
the system determines that an infant is present
in a rear-facing infant seat
•
the system determines that a small child is
present in a forward-facing child restraint
•
the system determines that a small child is
present in a booster seat
•
a right front passenger takes his/her weight off
of the seat for a period of time
•
the right front passenger seat is occupied by a
smaller person, such as a child who has
outgrown child restraints
•
or if there is a critical problem with the airbag
system or the passenger sensing system.
When the passenger sensing system has turned
off the passenger's airbag, the off indicator will light
and stay lit to remind you that the airbag is off.
If a child restraint has been installed and the on
indicator is lit, turn the vehicle off. Remove the child
restraint from the vehicle and reinstall the child
restraint following the child restraint manufacturer's
directions and refer to Securing a Child Restraint in
the Right Front Seat Position on page 86.
102
If after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, check to make
sure that the vehicle's seatback is not pressing the
child restraint into the seat cushion. If this happens,
slightly recline the vehicle's seatback and adjust the
seat cushion if possible. Also make sure the child
restraint is not trapped under the vehicle head
restraint. If this happens, adjust the head restraint.
If the on indicator is still lit, secure the child in the
child restraint in a rear seat position in the
vehicle and check with your dealer.
The passenger sensing system is designed to
enable (may inflate) the right front passenger's
airbag anytime the system senses that a person
of adult size is sitting properly in the right front
passenger's seat. When the passenger sensing
system has allowed the airbag to be enabled, the
on indicator will light and stay lit to remind you
that the airbag is active.
For some children who have outgrown child
restraints and for very small adults, the passenger
sensing system may or may not turn off the right
front passenger's airbag, depending upon the
person's seating posture and body build. Everyone
in your vehicle who has outgrown child restraints
should wear a safety belt properly — whether or not
there is an airbag for that person.