One problem related to dash wiring has been reported for the 1998 Buick Regal. The most recently reported issues are listed below.
Moisture has accumulated on inside of headlight lens. Console latch broken, repaired by dealer. Wiper arms would not remove snow, linkage disconnected, repaired by dealer, then went off windshield, repaired a total of 3 times. Half of digital temperature-radio display went dim, repaired by dealer. Digital supercharger boost guage intermitently sticks above zero, dealer could not identify problem.