GMC 2007 Envoy - Manual (Page 463)

4. Press and release the switch to turn the air
inflator on. The indicator light will remain on
when the inflator is running.
The system has an internal clock to prevent
the system from overheating. The system
will allow about five minutes of running time,
then the compressor will stop. The indicator
light will then begin to flash. When the indicator
is off, the inflator can be started again by
pressing the switch. If the compressor is still
hot, it may only run for a short time before
shutting off again.
5. Press and release the switch to turn the
inflator off.
Place the inflator kit tools in the pouch and store it
in its proper location. Remove the inflator hose
from the outlet during loading and unloading. Load
leveling will not function with the inflator hose
attached to the inflator outlet. See Electronically
Controlled Air Suspension System on page 360 for
more information.
To reinstall the cover, line up the tabs at the back
of the cover, put it in place and latch the tabs.
A continuous flashing indicator light may also
indicate a malfunction in the air suspension
system. See Electronically Controlled Air
Suspension System on page 360 for more
information.
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