Hummer 2008 H2 - Manual (Page 191)

Tire Pressure Light
This light comes on
briefly when the
engine is started.
This light will also come on when one or more of
your tires are significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), may accompany the light. See DIC
Warnings and Messages on page 3-56 for more
information.
Stop and check your tires as soon as it is safe to
do so. If underinflated, inflate to the proper pressure.
See Tires on page 5-55 for more information.
If a problem is detected with the Tire Pressure
Monitor System, this light will flash for approximately
60 seconds and then stay on solid for the remainder of
the ignition cycle. See Tire Pressure Monitor System
on page 5-62 for more information.
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