Top Brake lights don't work

Ronald Boyer

Asked by Sep 01, 2015 at 10:35 AM about the 1996 GMC Sierra 1500 C1500 SL Extended Cab LB

Question type: Maintenance & Repair

I had a turn signal light go out and I replaced the bulb and got it working now.
But my issue is when testing it I found out the top brake lights are not lighting
up. The bottom bulbs light up as brake lights and flash as turn signals but the
upper brake lights wont light. Swapped bulbs with new ones. Any ideas??

1 Answer


I believe the top bulbs are just running lights, (tail lights) that the bulbs have only one filament, can't remember the bulb number, but the bottom bulbs are break lights (blinkers) and tail lights, a 3057 bulb. That is the way it is on my 1995 Silverado.

Your Answer

Add photo

Related Questions

  • Brake lights don't work 4 answers

    I was told it was the brake light switch, replaced that and no effect. All the tail lights work including the 4 way flashers , and all the bulbs and fuses are sound; there is no electricity on the fu...

    1991 GMC Sierra 1500 C1500 SLE Extended Cab SB


    Maintenance & Repair

  • brake lights are out 1 answer

    I have done a lot of research into this issue, both online and in auto parts stores, has left me frustrated. First off, I own a 1997 GMC Sierra 5.7L V8. What I am having trouble with is that my bra...

    1997 GMC Sierra 1500 C1500 SL Extended Cab LB


    Maintenance & Repair

  • no Brake Lights 3 answers

    Checked ALL Fuses under Dash and Hood..changed Brake switch...

    1994 GMC Sierra 1500 C1500 SL Standard Cab SB


    Maintenance & Repair

  • tail light staying on an brake lights knot working 2 answers

    1989 Gm Sierra tail light staying on no brake light working

    1989 GMC Sierra 1500 C1500 Standard Cab LB


    Maintenance & Repair

  • 1994 GMC K2500 Brake lights don't work!! 2 answers

    I have a 1994 GMC K2500 that keeps blowing the STOP fuse when I press on the brake pedal. Even with a new brake light switch. Checked wiring- seems good-at least at the junctions and at the front a...

    1994 GMC Sierra 2500 2 Dr K2500 SLE 4WD Standard Cab LB


    Maintenance & Repair

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
Reputation 4,400
#2 John Saffrahn
John Saffrahn
Reputation 3,080
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,700
View All

Related Models For Sale

Used Ford F-150"
3,267 Great Deals out of 216,697 listings starting at $1,500
Used Dodge Ram 1500"
522 Great Deals out of 13,739 listings starting at $995
Used Toyota Tacoma"
617 Great Deals out of 30,502 listings starting at $2,850
Used Chevrolet Tahoe"
1,074 Great Deals out of 36,045 listings starting at $1,700
Used GMC Yukon"
566 Great Deals out of 19,460 listings starting at $2,500
Used GMC Sierra 2500"
223 listings starting at $2,895
Used Chevrolet Camaro"
798 Great Deals out of 38,822 listings starting at $2,650

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
20,104 listings starting at $20,851
2016 GMC Sierra 1500 For Sale
74 Great Deals out of 13,158 listings starting at $21,510
2015 GMC Sierra 1500 For Sale
189 Great Deals out of 4,740 listings starting at $15,995
2014 GMC Sierra 1500 For Sale
147 Great Deals out of 4,296 listings starting at $12,500
2013 GMC Sierra 1500 For Sale
95 Great Deals out of 2,678 listings starting at $12,400