Cadillac STS 2011 Owner's Manual page 440

If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on the hazard
warning flashers. See Hazard Warning Flashers on
page 4 3.
See If a Tire Goes Flat on page 6 74 for other
important safety warnings.
Do not remove any objects that have penetrated
the tire.
1. Remove the tire sealant and compressor kit from
its storage location. See Tire Sealant and
Compressor Kit Storage on page 6 94.
2. Unwrap the sealant/air hose (F) and the power
plug (H).
3. Place the kit on the ground.
4. Remove the valve stem cap from the flat tire by
turning it counterclockwise.
5. Attach the sealant/air hose (F) onto the tire valve
stem. Turn it clockwise until it is tight.
6. Plug the power plug (H) into the accessory power
outlet in the vehicle. Unplug all items from other
accessory power outlets. See Accessory Power
Outlet(s) on page 4 42.
If the vehicle has an accessory power outlet, do
not use the cigarette lighter.
If the vehicle only has a cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug cord in the door or
window.
7. Start the vehicle. The vehicle must be running
while using the air compressor.
8. Turn the selector switch (A) counterclockwise to
the Sealant + Air position.
9. Press the on/off (B) button to turn the tire sealant
and compressor kit on.
The compressor will inject sealant and air into
the tire.
The pressure gauge (C) will initially show a high
pressure while the compressor pushes the sealant
into the tire. Once the sealant is completely
dispersed into the tire, the pressure will quickly
drop and start to rise again as the tire inflates with
air only.
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