GMC 2009 Savana Van Owner's Manual page 65

If the vehicle has one, the right front passenger airbag
is in the instrument panel on the passenger side.
Driver Side shown, Passenger Side similar
If the vehicle is a cargo or passenger van with a sliding
door and it has a roof-rail airbag for the driver and
right front passenger position, the roof-rail airbags are in
the ceiling above the side window.
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