Oldsmobile 1999 Silhouette - Manual (Page 177)

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Accessory Inflator System (Option)
Your vehicle may be equipped with an air inflator. With
it, you can inflate things like air mattresses and
basketballs, and you can also use it to bring your tires up
to the proper pressure.
The air inflator is located in the rear compartment on the
driver’s side. To remove the cover, pull the tab on the
cover and pull it off.
The air inflator kit is stored in the glove box. It includes
a 20
- foot (6 m) hose with an air pressure gage and
nozzle adapters.
CAUTION:
Inflating something too much can make it
explode, and you or others could be injured. Be
sure to read the inflator instructions, and inflate
any object only to its recommended pressure.