Tail Lights


Asked by Oct 06, 2014 at 06:38 PM about the 2010 GMC Sierra 1500 SLE 4WD

Question type: Maintenance & Repair

I have a 2010 GMC Sierra and my tail lights and marker lights quit working. I have no
power to the fuses but if I jump the relay I can power to the fuses and the tail lights and
markers work. Tried other relays and the same thing occurs no tail lights.

7 Answers


Sounds like the relay might be bad. Take another relay from something else in the fuse box and put in place of the tail light relay. See if that works. If it does you just need a new one.


Did that first thing> tried three. Still the same thing.


Hhhhmmmmmm...... I'd say you might have a broken, pinched or corroded wire(s) somewhere. The truck is only 5 years old but that stuff can happen. Was it worked on recently?


It could be the trailer wiring if you have a tow package?

2 out of 2 people think this is helpful.

I have the tow package, but seems funny that when I jump the relay the fuses all get power and all the tail lights and markers come on. If the trailer wires where broke I shouldn't get lights and if there was a short it should pop fuses. No?


You may be right but it is wiring and a lil hard to analize over a web page. The truck is new enough it might have a module to control the taillights. If that's the case it runs through the BCM. If you don't see anything obviously wrong then I would take it to a REPUTABLE mechanic.


Northernman, did you ever figure this out? I have the exact issue, any help would be appreciated, thank you, Dave.

Your Answer

Add photo

Related Questions

  • Tail lights 1 answer

    My driver side tail light does work .. Brake or signal .. But when I turn my headlights on they bulbs turn on but still no brake or signal

    1997 GMC Sierra 1500 C1500 SLT Standard Cab SB


    Maintenance & Repair

  • Which fuse? (tail lights) 11 answers

    I have a 1994 GMC Sierra 1500. The tail lights aren't working. The brake lights and turn signals all work, I changed out the bulbs already and I think it is a fuse. The problem I am running into i...

    1994 GMC Sierra 1500 K1500 SLE 4WD Extended Cab LB


    Maintenance & Repair

  • tail lights dont work 20 answers

    The brake lights, turn signals, reverse lights all work but the tail lights ( when you head lights are on ) do not work. i have changed the bulbs, fuses, checked the tail light circut board, checked...

    1991 GMC Sierra 1500 K1500 4WD Standard Cab Stepside SB


    Maintenance & Repair

  • BackLeft Tail light won't work at night or day. fuse or what? 1 answer

    I have a gmc sierra 1500 2003 and the back left tail light doesnt work while im driving. The brakes work and the blinkers work but the only thing is that the light won't be on while vehicle is park...

    2003 GMC Sierra 1500 STD Standard Cab SB


    Maintenance & Repair

  • Tail lights 4 answers

    1999 gmc suburband My tail lights won't come on all the other lights work except the left n right lights I have replaced fuses and light boards still nothing when I put the truck in reverse the li...

    1999 GMC Suburban


    Maintenance & Repair

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 55,963 nationwide Sierra 1500 listings starting at $2,400.


Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
Reputation 4,390
#2 John Saffrahn
John Saffrahn
Reputation 3,070
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,690
View All

Related Models For Sale

Used Chevrolet Silverado 1500"
2,380 Great Deals out of 143,345 listings starting at $1,195
Used Ford F-150"
3,177 Great Deals out of 215,801 listings starting at $1,000
Used GMC Sierra 2500HD"
161 Great Deals out of 15,291 listings starting at $1,900
Used Dodge Ram 1500"
540 Great Deals out of 13,899 listings starting at $995
Used Toyota Tundra"
652 Great Deals out of 26,382 listings starting at $2,500
Used Toyota Tacoma"
637 Great Deals out of 30,001 listings starting at $2,850
Used Ram 1500"
1,262 Great Deals out of 110,870 listings starting at $7,999
Used Chevrolet Silverado 2500HD"
387 Great Deals out of 33,935 listings starting at $2,998
Used Chevrolet Tahoe"
1,043 Great Deals out of 36,533 listings starting at $1,695
Used Ford F-250 Super Duty"
457 Great Deals out of 42,764 listings starting at $1,000
Used GMC Yukon"
547 Great Deals out of 14,666 listings starting at $1,500
Used GMC Yukon Denali"
30 Great Deals out of 4,627 listings starting at $6,900
Used Chevrolet Camaro"
812 Great Deals out of 39,041 listings starting at $2,650

Used Cars For Sale

2017 GMC Sierra 1500 SLE 4WD For Sale
40 listings starting at $37,574
2016 GMC Sierra 1500 SLE 4WD For Sale
110 listings starting at $33,341
2015 GMC Sierra 1500 SLE 4WD For Sale
39 listings starting at $28,950
2014 GMC Sierra 1500 SLE 4WD For Sale
35 listings starting at $25,000
2013 GMC Sierra 1500 SLE 4WD For Sale
19 listings starting at $23,000