Cadillac 2005 XLR Owner's Manual page 52

United States
To turn off the passenger's airbags, insert your vehicle
key into the switch, push in, and move the switch to
the off position.
1-46
Canada
The airbag off light on the center console will come on
to let you know that the passenger's airbags are off.
The airbag off light will stay on to remind you that
the airbags are off. The passenger's airbags will remain
off until you turn them back on again.