Tail lights acting erratically, pressing on brakes causes different lights to act differently.

Asked by Jan 14, 2016 at 04:42 PM about the 1997 GMC Sierra 1500

Question type: Maintenance & Repair

So then, my tail lights are acting up, whenever I have my lights on for the
dark my tail lights will dim to a very low extent, if I turn on my turn signal
then everything will flash. Including the lights that shine on my license plate.
When the lights are turned off and I use a turn signal then brake, then the
turn signal will dim and the brake lights are very dim as well. Used to have
a trailer hitch, since removed due to a prior lights issue. Checked up on the
ground, didn't seem to look too corrode, however I did not remove it to
look. I have followed the wiring under the car to look for breaks in the wire
somewhere to no avail. I have yet to check the fuses. Any advice is
appreciated.

1 Answer

So I fixed it, or rather had to take it to a shop. It was a circuit board that got screwed up. It got corrode, I had cleaned the hell out of it with an electrical cleaner and looked through it and didn't catch it. It was not cheap, the new circuit board was 60 bucks and then work was about 100 bucks. But yea. Fixed

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,300
  • #2
    John Saffrahn
    Reputation
    3,660
  • #3
    Glenn Clingenpeel
    Reputation
    3,350
View All

Related Models For Sale

Used Ford F-150
2,234 Great Deals out of 181,368 listings starting at $1,500
Used Dodge Ram 1500
411 Great Deals out of 10,701 listings starting at $1,500
Used Toyota Tacoma
551 Great Deals out of 42,057 listings starting at $2,999
Used GMC Yukon
408 Great Deals out of 20,823 listings starting at $1,495
Used Chevrolet Tahoe
625 Great Deals out of 36,241 listings starting at $1,800
Used Chevrolet Camaro
422 Great Deals out of 31,785 listings starting at $2,395

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
80 Great Deals out of 39,539 listings starting at $23,369
2016 GMC Sierra 1500 For Sale
93 Great Deals out of 3,435 listings starting at $17,977
2015 GMC Sierra 1500 For Sale
113 Great Deals out of 4,464 listings starting at $15,922
2014 GMC Sierra 1500 For Sale
120 Great Deals out of 4,700 listings starting at $12,987
2013 GMC Sierra 1500 For Sale
46 Great Deals out of 1,959 listings starting at $8,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.