Pontiac Grand Prix 2007 Owner's Manual page 207

This message displays while the ignition is in
RUN. A chime sounds for two seconds when
this message is displayed. Press the set/reset
button to acknowledge this message and to clear
it from the screen.
This message continues to display if it has not
been acknowledged when the engine is turned
off. It also re-displays for three seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message
re-appears when the engine is turned on.
CHECK GAS CAP
This message displays when the fuel cap is not
on, or is not fully tightened. Check the fuel cap
to ensure it is on and properly tightened. The
diagnostic system can determine if the fuel cap
has been left off or improperly installed. A loose
or missing fuel cap allows fuel to evaporate
into the atmosphere. A few driving trips with the
cap properly installed should turn this message
off. See Filling the Tank on page 348 for more
information.
This message displays while the ignition is in
RUN. A chime sounds for two seconds when this
message is displayed and then the message
continues to display. Press the set/reset button to
acknowledge this message and to clear it from
the screen.
This message continues to display for
three seconds if it has not been acknowledged
when the engine is turned off. It also re-displays
for three seconds if the message has been
acknowledged, but the condition still exists when
the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
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