Chevrolet 2001 Monte Carlo Owner's Manual page 165

Security
United States
This message is displayed to monitor the
R
Passlock system.
If the security message is displayed continuously while
driving and stays on, there may be a problem with the
Passlock system. Your vehicle will not be protected by
Passlock, and you should see your dealer for service.
Low Fuel
Canada
This message is displayed when your vehicle is low on
fuel. Four chimes will also sound.
Refer to the fuel gage for a better indication of the
amount of fuel remaining in the fuel tank.
United States Canada
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