2003 Chevrolet Impala Owner's Manual - Page 170
2003 Chevrolet Impala Manual
Page 170 highlights
Service Vehicle Soon Message Highbeam Out Warning Message SERVICE VEHICLE SOON I HIGHBEAM OUT Canada United States Canada I I United States This message will come on if you have engine problems. These problems may not be obvious and may not affect vehicle performance or durability. Consult a qualified dealership for necessary repairs to maintain top vehicle performance. If this message appears, you may have a problem with your high-beam headlamps. The message will stay on approximately 60 seconds. When the ignition is turned off, this message will be displayed again for three seconds to remind you that you may have a problem with your highbeam-headlamps. Be sure to check your bulbs right away and replace them if necessary. See Bulb Replacement on page 5-55. 3-47
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