Honda Civic Owner's Manual page 206

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For example, if you check and fill
your tires in a warm area, then drive
in extremely cold weather, the tire
pressure will be lower than
measured and could be underinflated
and cause the low tire pressure
indicator to come on. Or, if you
check and adjust your tire pressure
in cooler conditions, and drive into
extremely hot conditions, the tire
may become overinflated. However,
the low tire pressure indicator will
not come on if the tires are
overinflated.
Refer to page 233 for tire inflation
guidelines.
Although your tire pressure is
monitored, you must manually check
the tire pressures monthly.
Each tire, including the spare, should
be checked monthly when cold, and
set to the recommended inflation
pressure as specified on the tire
Tire Pressure Monitoring System (TPMS)
information label and in the owner's
manual (see page 234 ).
Tire Pressure Monitoring
System (TPMS) Indicator
This indicator comes on and stays on
if there is a problem with the tire
pressure monitoring system.
If this happens, the system will shut
off and no longer monitor tire
pressures. Have the system checked
by your dealer as soon as possible.
2008 Civic Hybrid
When you restart the vehicle with
the compact spare tire, the TPMS
indicator may also come on and stay
on after driving several miles
(kilometers).
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