Cadillac CTS 2018 Owner's Manual page 303

302 VEHICLE CARE
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. Press and turn the selector
switch (1) clockwise to the Air
Only position.
9. Press the on/off (2) button to
turn the compressor on.
The compressor will inflate the
tyre with air only.
10. Inflate the tyre to the
recommended inflation pressure
using the pressure gauge (3). The
recommended inflation pressure
can be found on the Tyre and
Loading Information label. See
Tyre Pressure 0 283.
The pressure gauge (3) may read
higher than the actual tyre
pressure while the compressor is
on. Turn the compressor off to
get an accurate reading. The
compressor may be turned on/off
until the correct pressure is
reached.
If you inflate the tyre higher
than the recommended pressure
you can adjust the excess
pressure by pressing the pressure
deflation button (4) until the
proper pressure reading is
reached. This option is only
functional when using the air
only hose (7).
11. Press the on/off button (2) to
turn the tyre sealant and
compressor kit off.
Be careful while handling the
tyre sealant and compressor kit
as it could be warm after usage.
12. Unplug the power plug (8) from
the accessory power outlet in the
vehicle.
13. Disconnect the air only hose (7)
from the tyre valve stem, by
turning it anticlockwise, and
replace the tyre valve stem cap.
14. Replace the air only hose (7) and
the power plug (8) and cord back
in its original location.
15. Place the equipment in the
original storage location in the
vehicle.
The tyre sealant and compressor kit
has an accessory adapter located in a
compartment on the bottom of its
housing that may be used to inflate
air mattresses, balls, etc.