Last post on Oct 13, 2012 at 9:15 PM
You are in the Chevrolet TrailBlazer
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Chevrolet TrailBlazer, SUV
#132 of 171 Re: Low beam not working [cck3]
Nov 23, 2010 (9:43 am)
Try cleaning the heck out of the contacts in the fuse box AND the relays. This is what worked for me to solve this same problem, while still using the old relay. But I have a new relay in my glovebox just in case it ever really does go out.
#133 of 171 Due to challenges I made future easier
Jan 11, 2011 (4:39 pm)
I decided to replac the Airfilter & Plumbing with K&N filter and left the air cleaner bonnet off. The airfilter is exposed and may need to be cleaned more frequently. But its easy with K&N filter. The air inlet plumbing was replaced with a new tube that did not open to the AC bonnet so all air is filtered...
Mar 25, 2011 (9:24 am)
i have a 04 trailblazer and my headlights low beam went out. I checked the fues and the bulbs and they were not blown. please help
#135 of 171 Re: head light [antonbynum]
Mar 25, 2011 (9:29 am)
Are both sides out? If so, switch relay # 45 with relay #46. Do you now have lights? If it's just the one side, check the wiring harness and the bulb socket. Some people have problems with the socket overheating and melting.
#136 of 171 I just want to know what I'm doing!
Apr 10, 2011 (6:23 am)
I have an '06 TrailBlazer, & I just want to know how you replace the bulb in passengers side headlight. I was stopped last night & found out it was out, so now I have to figure it out & install it myself. Clear instructions would be helpful, since I really didn't see much of that on here. Thank you!
#137 of 171 Re: I just want to know what I'm doing! [jules712]
Apr 10, 2011 (6:40 am)
Raise the hood. The front grill pops right off by carefully pulling at the areas where it is clipped onto the SUV...it is plastic so be careful. Once you have the grill laid aside you need to stand in front of the passenger headlight. Look directly down at the top area that is under the hood & you will see that there are 2 clips...one on the extreme outter top on both sides...you will need pliers, etc to pull them straight UP....the one to the far outside is a bit under the fender edge & I used a long screwdriver to tug it up. Make sure you are right in front of the light to catch it so it does not fall. You need to remove the old light & replace with a new one....BUT I had done this TWICE and the exact same light kept going out. The problem is not always the bulb. In my case (and MANY others i have read about) the wiring that attaches to the piece where the bulb goes gets too hot and melts (once you are into the headlight area make sure to look it all over for melted or discolored wiring). My hubby had to fix my wiring & once he did it has never happened again. GOOD LUCK & BE CAREFUL!! Oh...a test you can do BEFORE removing everything to see if it possibly may be the wiring (or this is what we did) is to have your lights ON & use the outside of your fist and thump several times on the passenger side fender area close to the front where the light is. It didn't fix it everytime we did it, but MANY times we'd thump the fender & the light would come back on
#138 of 171 Re: I just want to know what I'm doing! [jules712]
Apr 11, 2011 (8:32 am)
Easiest way to do this.....Remove the top of the air cleaner, at this point you have complete access to the bulbs. Remove the 3" round rubber boot, and remove the bulb. There is another way which involves removing the grill, but you chance cracking or breaking the grill and it takes too long.
#139 of 171 Re: I just want to know what I'm doing! [jules712]
Apr 11, 2011 (9:59 am)
Just checking in to see if the issue has been taken care of. Please keep us posted.
Caron, GM Customer Service
#141 of 171 Headlamp Driver Module
Apr 23, 2011 (9:39 pm)
Both of my headlamps went out, I swapped #45 and #46 like someone had suggested, the lights started working. I went to auto parts store purchased a new relay. Installed the new one, made sure lights worked. They did! That was done in the morning, that night I went to leave and both headlamps out again. Swapped them again they worked, but what would have made the new module go out that I just purchased or what can I do now? i do not want to go to the dealership!!!