2004 Hummer H2 Owner's Manual - Page 390

Accessory Inflator Your vehicle may be equipped with an accessory inflator system. You can inflate things like basketballs and bicycle tires. Also, you can use it to bring your tire pressure up to the proper pressure. The engine must be running and the gearshift lever must be in PARK (P) for the inflator to operate. The accessory inflator is located in the rear compartment on the passenger's side of the vehicle. The accessory inflator kit is located in the spare tire cover pocket. The kit includes a hose and three nozzle adapters. To use the accessory inflator, attach the appropriate nozzle adapter to the end of the hose if required. Then attach that end of the hose to the object you wish to inflate. Remove the dust cover and attach the hose to the outlet. 5-76