Cadillac 2007 STS Owner's Manual page 457

CAUTION:
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Inflating something too much can make it
explode, and you or others could be
injured. Be sure to read the inflator
instructions, and inflate the tire to its
recommended pressure. Do not exceed
36 psi (248 kPa).
7. Move the inflator kit switch to the I (on)
position.
The inflator kit will force sealant and air into
the tire. Sealant may leak from the puncture
hole until the vehicle is driven and the
hole has sealed.
8. Make sure there is a proper connection
between the tire valve stem and the
sealant filling hose by looking at the air
pressure gage. If there is not a pressure
reading while the compressor is running, the
connection between the inflator kit and
the tire is bad.
Check the attachment between the sealant
filling hose and the tire valve stem.
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