Chevrolet 2004 Impala Owner's Manual page 165

Battery Warning Message
If the message is displayed when the engine is running,
you may have a problem with your charging system.
If there is a problem with the charging system, four
chimes will sound when the message comes on. The
battery display will also stay on while the key is in
ON 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 on could drain
your battery.
If you must drive a short distance with this message
displayed, it helps to turn off all your accessories.
When the vehicle is started
this message will be
displayed for three
seconds.
Hot Coolant Temperature Warning
Message
United States
This message is displayed when the cooling
system temperature gets hot. A chime will sound
continuously, also.
Check the coolant temperature gage and the coolant
level. See Engine Coolant on page 5-27, Engine Coolant
Temperature Gage on page 3-36 and Engine
Overheating on page 5-30 for further information.
Canada
3-43