Pontiac Grand Prix 2007 Owner's Manual page 218

A chime sounds continuously while this message
is displayed if driving above 5 mph (8 km/h).
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.
PARK LAMPS ON
This message displays to alert the driver when
the parking lamps are on, the ignition is in
OFF, and the key is removed. A chime sounds
continuously while this message is displayed.
This message cannot be acknowledged.
218
REDUCED ENGINE POWER
This message displays when the vehicle's engine
power is reduced. If this happens during driving
conditions, such as climbing a steep hill, the
transaxle may overwork in a gear that may cause
damage to the vehicle's engine or transaxle.
Reduced engine power can affect the vehicle's
ability to accelerate. If this message is on,
but there is no reduction in performance, proceed
to your destination. The performance may be
reduced the next time the vehicle is driven.
The vehicle may be driven at a reduced speed
while this message is on, but acceleration
and speed may be reduced. Anytime this message
stays on, the vehicle should be taken to your
dealer for service as soon as possible.
This symbol comes
on with this message.