Fuel Gage; Low Fuel Warning Light - Pontiac 2002 Grand Prix Owner's Manual

Fuel Gage

United States
The fuel gage tells you about how much fuel you have
left when the ignition is on. When the indicator nears
empty, you still have a little fuel left, but you should get
more soon.
Here are four things owners usually ask about the fuel
gage. All these situations are normal and do not indicate
a problem with the fuel gage:
D
At the gas station, the pump shuts off before the gage
reads full.
2-90
D
It takes more (or less) fuel to fill up than the gage
indicates. For example, the gage reads half full, but it
took more (or less) than half the tank's capacity to
fill it.
D
The gage pointer may move while cornering, braking
or speeding up.
D
The gage may not indicate full when the ignition is
turned off.

Low Fuel Warning Light

Canada
It will also come on for a few seconds when you first
turn on the ignition as a check to show you it's working
properly. If it doesn't come on then, see your dealer
for service.
If your fuel is low, the
warning light near the fuel
gage will go on.