Tire Pressure Monitor System - Pontiac Vibe 2007 Owner's Manual

How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are
properly inflated simply by looking at them. Radial
tires may look properly inflated even when they
are under-inflated. Check the tire's inflation
pressure when the tires are cold. Cold means your
vehicle has been sitting for at least three hours
or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem.
Press the tire gage firmly onto the valve to
get a pressure measurement. If the cold tire
inflation pressure matches the recommended
pressure on the Tire and Loading Information
label, no further adjustment is necessary. If the
inflation pressure is low, add air until you reach the
recommended amount.
If you overfill the tire, release air by pushing on
the metal stem in the center of the tire valve.
Re-check the tire pressure with the tire gage.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.
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Tire Pressure Monitor System

Your vehicle has a Tire Pressure Monitor System
(TPMS). This feature is designed to alert you
when the system detects a large change in the
pressure of one tire. The system cannot alert you
before you drive that a tire is low or flat. You
must begin driving before the system works
properly. The TPMS works with the brake control
system and is designed to detect differences
in the tire rotation speeds that are caused
by changes in tire pressure. The TPMS does not
replace normal tire maintenance, see Tires on
page 322, Tire Inspection and Rotation on
page 333 and When It Is Time for New Tires on
page 335.