The front driver side and rear passenger side lights do not flash?
RODJAMES
MEMBER
1992 GMC SIERRA
5.7L
V8
4WD
AUTOMATIC
300,489 MILES
Also, my brake lights only work when I’m in park, but not while I’m driving.
Saturday, March 16th, 2024 AT 2:56 PM
2 Replies
KEN L
MASTER CERTIFIED MECHANIC
42,913 POSTS
This happens when the flasher is starting to go out. Here is the location of the flasher so you can change it out. Check out the images (below). Please let us know what happens.
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Sunday, March 17th, 2024 AT 11:08 AM
RODJAMES
MEMBER
23 POSTS
I meant to say the passenger side of the brake lights doesn’t work while the driver side does.