Sign up to remove ads. We'd love to have you amongst our ranks! Just Click here!

gmc forums   gmc forums

Go Back   GMC Forums > GMC Vehicles Currently In Production > GMC Sierra Forum

gmc hummer ev forums

GMC Sierra Forum Forum for discussions regarding the GMC Sierra

GMC Forum: electrical issues. headlights stopped working
Thread Tools
Old 03-14-2020, 02:02 AM
mysierra93 mysierra93 is offline
Junior Member
Drives a GMC Truck
Join Date: Mar 2020
Posts: 1
Default electrical issues. headlights stopped working

hi everyone,

i really have no experience in electrical so any insight would be appreciated
i've owned my 93 sierra now for 2 years. love it.

soon after receiving it, the lights on the guage/speedometer display would come of and on whenever hitting a bump in the road, but haven't seen those in awhile. off completely now. the only and last light on the display that illuminated is the highbeam indicator, until tonight.

this week, having issues with headlights. the low beam stopped working, then tonight both high and low beam stopped working but the fog lights still work when headlights turned off. first time ever the highbeam indicator light on the guage display stopped working. now it's completely dark.

headlights, both high and low, will go out, then turn back on.

any suggestions on where to begin?

thanks so much
Reply With Quote

Old 03-28-2020, 04:14 PM
98trck 98trck is offline
Senior Member
Drives a '11 sierra 1500
Join Date: Feb 2011
Location: Chandler Az
Posts: 272

as for the headlights on and off
the headlights are on a thermo circuit breaker (no fuses)
have you added anything to the headlight system(fog/driving lights) (aftermarket headlight bulbs ie. hid, led etc. )
causing it to draw more power, which will cause circuit breaker to warmup and disconnect
i believe there is a headlight relay it may be faulty

Last edited by 98trck; 03-28-2020 at 04:22 PM.
Reply With Quote

Registered members see less ads. Please sign up! We'd love to have you...

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 09:09 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc. recognizes that "GMC", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. is not affiliated in any way with the General Motors Corporation, GMC or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. 2017 Madison Ross Media Group. All rights reserved. Content published on requires permission for reprint.

Need products for your GMC Truck? Check out your options at the links below:

Looking for something a little sporty? Believe it or not, Kia may have something for you. The Kia Stinger is a large sport-oriented hatchback sedan in the mold of the Audi A7. The Kia Telluride is a mid-size SUV similar to the BMW X5...