Pontiac 2005 Grand Prix Owner's Manual page 366

Using the Tire Inflator Kit
1. Place the inflator kit on the ground and unwrap
the sealant filing hose (G) from the compressor.
2. Remove the air compressor accessory plug (C)
from the unit. Do not plug into an accessory
outlet yet.
3. Remove the valve stem cap from the flat tire by
turning it counterclockwise.
If an object, such as a nail, has penetrated the tire,
do not remove.
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4. Attach the sealant filing hose (G) onto the tire valve
stem. Turn it clockwise until it is tight.
Make sure that the inflator kit ON/OFF switch (D) is
in the OFF position.
5. Plug the air compressor accessory plug (C) into
an accessory power outlet in the vehicle. See
Accessory Power Outlets on page 3-24 for more
information.