Two problems related to alternator/generator/regulator have been reported for the 1998 Chevrolet Lumina. The most recently reported issues are listed below.
Alternator just dies on highway and warning light comes on about 3 seconds before vehicle will die in middle of speeding cars. Once consumer was hit and could have been killed. Took to dealer, and they put in a new alternator.
Alternator failed. Yh.