GMC 2000 Sierra - Manual (Page 42)

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NOTICE:
If you damage the covering for the driver’s or the
right front passenger’s air bag, the bag may not
work properly. You may have to replace the air
bag module in the steering wheel or both the air
bag module and the instrument panel for the
right front passenger’s air bag. Do not open or
break the air bag coverings.
AIR BAG OFF Switch
Your vehicle has a switch on the instrument panel that
you can use to turn off the right front passenger’s
air bag.