99 gmc suburnan no turn signal or brake light on driver side

Asked by Jacks2004 Jan 31, 2020 at 03:37 PM about the 1999 GMC Suburban C1500

Question type: Maintenance & Repair

I have a 1999 gmc suburban... the driverside rear turn
signal and brake light does not work....
Passenger side works fine.
Have replaced the entire tail light assembly, all wires to the
assembly, replaced relay, all fuses are good.  Still does not

1 Answer


Your lower brake lamp and turn signal use the same bulb filament, just not at the same time. Have you checked voltage and ground for the lamp in question? You can use a test light. See the yellow wire to lamp, in diagram, that is voltage for stop or turn. The bottom black wire is ground, you need both. Your lower brake lamps are wired through multifunction switch as well as turn. Might be something wrong with multifunction switch, If the wiring circuit is ok? good luck

1 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

1999 GMC Suburban

Review another car

CarGurus Experts

  • #1
  • #2
    Larry Thibert
  • #3
View All

Know more, shop wisely


Related Models For Sale

Used Chevrolet Suburban
658 Great Deals out of 9,066 listings starting at $2,588
Used GMC Yukon
651 Great Deals out of 8,619 listings starting at $1,499
Used GMC Yukon XL
450 Great Deals out of 6,640 listings starting at $2,995
Used Chevrolet Tahoe
1,160 Great Deals out of 16,553 listings starting at $2,000
Used Cadillac Escalade
389 Great Deals out of 5,762 listings starting at $2,999
Used Ford Expedition
990 Great Deals out of 20,778 listings starting at $1,500
Used Ford Explorer
2,465 Great Deals out of 50,703 listings starting at $1,399

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. Content will be removed if CarGurus becomes aware that it violates our policies.