One problem related to alternator/generator/regulator has been reported for the 1999 Hyundai Sonata. The most recently reported issues are listed below.
Alternator went out which made the electrical system to go out. Entire dashboard was not working, also, abs brakes and engine check lights kept blinking. There was an electrical smell. Dealer replaced alternator.
| Wiring problems | |
| Battery problems | |
| Dash Wiring problems | |
| Starter problems | |
| Ignition problems | |
| Alternator/generator/regulator problems | |
| Electrical System problems | |
| Underhood Wiring problems |