Driver side brake light and turn signal not working properly

1999 BUICK REGAL
160,000 MILES • 3.8L • V6 • TURBO • 2WD • AUTOMATIC
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LEE GIBBZ
  • MEMBER
  • 3 POSTS
GS model. Driver side brake light does work and the driver side turn signal only works in the day time. checked all fuses and relays. The crazy thing is emergency flashers are working day or night. I’ve been trying to figure this out for about two weeks now.
Feb 19, 2019 at 3:59 AM
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HARRY P
  • ✓Experienced Mechanic
  • 2,292 POSTS
Hello and welcome to 2CarPros. Have you replaced the flasher? This car uses an all-in-one flasher that incorporates both the hazards and turn signals. The result? It can do some weird things when it fails. Pop a new one in and see what happens. If that doesn't do it, then we're looking at replacing the multi-function switch (the switch that controls the wipers, turn signals, hazards, and cruise control). Check the image below for instructions on replacing your flasher. You can get them pretty cheap on Amazon.

- Harry
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Feb 19, 2019 at 4:56 AM
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