Pontiac Solstice 2008 Owner's Manual page 274

Check the tire sealant expiration date on the sealant
canister, if it has expired, see your dealer/retailer for a
replacement.
Using the Tire Sealant and Compressor
Kit to Temporarily Seal a Punctured Tire
Follow these directions closely for correct sealant usage.
1. Place the sealant and compressor kit on the
ground and unwrap the sealant filling hose
from the compressor.
2. Remove the air compressor accessory plug from
the unit. To do this, pull the top portion of the
wrapped cord out first, then the bottom, and then
unsnap the plug. Do not insert the plug into an
accessory outlet yet.
3. Remove the valve stem or tire pressure
monitoring sensor cap from the flat tire by
turning it counterclockwise.
If an object, such as a nail, has penetrated the tire,
do not remove it.
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4. Attach the sealant filling hose (A) onto the tire valve
stem. Turn it clockwise until it is tight.
Make sure the sealant and compressor kit on/off
switch (B) is in the O (off) position.
5. Plug the air compressor accessory plug (C) into an
accessory power outlet in the vehicle. See Accessory
Power Outlet(s) on page 3-16 for more information.
Do not slam the door or close the window on the
compressor accessory plug cord.