Mercury 1996 Grand Marquis Manual page 74

Speed Control Indicator Light
This light comes on when the speed control
system is actively maintaining the set speed. It
will go off when the brakes are used or if the
speed control is turned off.
This light does not indicate any problems but is
only a convenience to tell when the speed
control is active.
Fuel Gauge
The fuel gauge tells you approximately how
many gallons/liters of fuel you have in the tank.
When your tank reaches 1/8 or approximately
2 gallons (8 liters), a flashing fuel pump will
appear.
Turn the ignition switch off while fueling to
obtain an accurate fuel gauge indication.
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