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Tire Pressure Light
TPMS Light
This light comes on briefly when the
engine is started and provides
information about tire pressures and
the Tire Pressure Monitoring System.
When the Light is Solid
This light will also come on when
one or more of your tires are
significantly underinflated. A CHECK
TIRE PRESSURE DIC message
will accompany the light.
See DIC Warnings and Messages
on page 4-27 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 9-39 for more
information.
When the Light Flashes First and
Then is Solid
This indicates that there may be a
problem with the Tire Pressure
Monitor System.
The light flashes for about a minute
and stays on solid for the
remainder of the ignition cycle. This
sequence will repeat with every
ignition cycle. See Tire Pressure
Monitor System on page 9-49
and Tire Pressure Monitor Operation
on page 9-51 for more information.
Malfunction
Indicator Lamp
Check Engine Light
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It makes sure that
emissions are at acceptable
levels for the life of the vehicle,
helping to produce a cleaner
environment.
This light comes on briefly, as a
check to show it is working,
when the ignition is turned to
ON/RUN. If the light does not come
on, see your dealer/retailer.
If the light stays on it indicates that
there is an OBD II problem and
service is required.
4-18 Instruments and Controls
2008 - Pontiac G8 Owner Manual