SPONSORED LINKS

Tag lights and third brake lights do not work

Tiny
JOSHUOFA
  • MEMBER
  • 2005 CHEVROLET SUBURBAN
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
My wife’s SUV the tag lights do not work (I have installed new bulbs) and also the third brake light will not work. All other rear lights work. Can someone please help me? I have checked the fuses that I thought were the right one and it was fine. Thanks in advance!
Josh in Georgia.
SPONSORED LINKS
Thursday, April 19th, 2018 AT 2:17 AM

10 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Look at the wiring for the tag lights at the socket. If the rear parking lights work, then the problem is right back where the socket is located. Look for any broken wires or loose connections.

As far as the third light, check the bulb and the socket. Common for the socket to melt from the heat generated from the bulb working.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 5:32 AM
Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
Check the "VEH CHMSL" fuse in the left I/P fuse block, located behind lower left side of dash. That is for the third brake light.
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 6:54 AM
Tiny
JOSHUOFA
  • MEMBER
  • 5 POSTS
Thanks Roy, as for the third brake light I bought a whole new light assembly it is an LED one. I hooked it up and still get nothing. But all other rear lights work except for the third and tag lights. I have checked all the connections and wires and there is no frays or bad connections to the sockets. I am totally wrecking my brain as to what it could be. Thanks Roy.
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 6:58 AM
Tiny
JOSHUOFA
  • MEMBER
  • 5 POSTS
PATENTED_REPAIR_PRO :
Thanks I will try that when I get home in a few hours.
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 7:00 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome. If you have a test light verify power to the third light socket. If no power, check the fuse.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 8:25 AM
Tiny
JOSHUOFA
  • MEMBER
  • 5 POSTS
Which fuse is it exactly?
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 9:35 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
VEH CHMSL in the fuse box. Use a test light and make sure it has power on both sides with the brakes applied.

Roy
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 9:37 AM
Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
In the I/p fuse block shown and the fuse shown in the center shown as VEH CHMSL.
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 10:06 AM
Tiny
JOSHUOFA
  • MEMBER
  • 5 POSTS
Thanks, I just got home going to eat and then start getting this figured out.
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 1:59 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Sounds good. We will be here.

Roy
Was this
answer
helpful?
Yes
No
Thursday, April 19th, 2018 AT 2:46 PM

Please login or register to post a reply.

Related Brake Light Not Working Content

VIEW MORE

Sponsored links