Buick LaCrosse 2011 Owner's Manual page 134

5-12 Instruments and Controls
Metric
When the ignition is on, the fuel
gauge indicates about how much
fuel is left in the tank.
An arrow on the fuel gauge
indicates the side of the vehicle
the fuel door is on.
When the indicator nears empty,
the low fuel light comes on. There is
still a little fuel left, but the fuel tank
should be filled soon.
Here are four things that some
owners ask about. None of these
show a problem with the fuel gauge:
At the service station, the fuel
pump shuts off before the gauge
reads full.
I n f o r ma t i o n P r o v i d e d b y :
It takes a little more or less
fuel to fill up than the gauge
indicated. For example, the
gauge indicated the tank was
half full, but it actually took a
little more or less than half the
tank's capacity to fill the tank.
The gauge moves a little while
turning a corner or speeding up.
The gauge takes a few seconds
to stabilize after the ignition is
turned on, and goes back to
empty when the ignition is
turned off.