Chevrolet avalanche 2002 用户手册

The message center is located on the left side of the
instrument panel cluster. It gives you important safety
and maintenance facts. When you turn the ignition on,
the entire center lights up for just a few seconds. 
As needed, the message center will display one of 
the following messages. The message center is capable
of alternating among different messages if needed.

If this message is displayed
when the engine is running,
you may have a problem
with your charging system.

The battery display will also stay on while the key is in
RUN until the engine is started.

If the message stays on after starting the engine it could
indicate a problem with the generator drive belt, or some
other charging system problem. Have it checked right
away. Driving with this message displayed could drain
your battery.

If you must drive a short distance with this message
displayed, it helps to turn off all your accessories, 
such as the radio and the air conditioner.