2003 Trailblazer Headlights

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2003 Trailblazer Headlights

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Trailblazer >> 2003 Trailblazer Headlights

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2003 Trailblazer Headlights - 9/8/2006 3:09:11 PM

glensy

Posts: 1
Joined: 9/8/2006
Status: offline

2003 Trailblazer has an intermitent problem where both running lights (low beam headlights) will go out while driving. I immediately checked both fuses (both tested good) and changed both just to be certain. One time the running lights started working after changing the fuses (a coincidence?). Now lights are out again and the fuses are good. How do I troubleshoot this problem?

Post #: 1

RE: 2003 Trailblazer Headlights - 9/9/2006 9:32:34 PM

kcb37

Posts: 504
Joined: 7/3/2006
Status: offline

Check all your connections for the lights and make sure they are tight and corrosion free.

(in reply to glensy)

Post #: 2

RE: 2003 Trailblazer Headlights - 9/15/2006 3:12:24 PM

colamale29210

Posts: 11
Joined: 6/25/2005
From: United States
Status: offline

check and or replace the ignition lock cylinder/switch assembly. there has been a few
problems with them

(in reply to kcb37)

Post #: 3

RE: 2003 Trailblazer Headlights - 9/26/2006 2:47:51 AM

glensy

Posts: 1
Joined: 9/8/2006
Status: offline

I checked light connections; everything is tight and no corrosion is present. Problem of both low beam headlights going out simultaneously continues. Lights will go back on after Headlamp Driver Module relay (46) has been removed and re-installed.

(in reply to kcb37)

Post #: 4

RE: 2003 Trailblazer Headlights - 11/30/2007 10:11:53 PM

fatback

Posts: 2
Joined: 11/30/2007
Status: offline

quote:

ORIGINAL: glensy

I checked light connections; everything is tight and no corrosion is present. Problem of both low beam headlights going out simultaneously continues. Lights will go back on after Headlamp Driver Module relay (46) has been removed and re-installed.

Glensy, I did this on my 06 TB....I switched the HDM relay with the fan relay beside it. The lights came back on!! I went to the dealership and bought a new relay and so far , it seems to have cured it.
I had to ressurect this post to say thanks!!!

(in reply to glensy)

Post #: 5

RE: 2003 Trailblazer Headlights - 1/14/2008 8:53:35 PM

PaulJr46

Posts: 1
Joined: 1/14/2008
Status: offline

Guys, thanks for the fix! I also replaced the relay on my '06 TB and the lights came right back on.

(in reply to glensy)

Post #: 6

RE: 2003 Trailblazer Headlights - 6/22/2008 10:48:44 PM

nurse35

Posts: 1
Joined: 6/22/2008
Status: offline

im having the same problem with my 03 tb. the high beam lights will work when i manually switch them over. some say it might be the light switch is gone. now as of 6/22/08 the low beams nor the day light lamps will work,only the high beams. can anyone help me?

< Message edited by nurse35 -- 6/22/2008 10:56:00 PM >

(in reply to PaulJr46)

Post #: 7

RE: 2003 Trailblazer Headlights - 6/23/2008 11:12:30 AM

rbarrios

Posts: 215
Joined: 2/1/2007
Status: offline

yeah, for those whose lights go out suddenly and wont come back on. you can temporarily swap the fan relay with the headlight relay to get you out of a bind...

(in reply to nurse35)

Post #: 8