The contact owns a 2004 Chevrolet Trailblazer. The contact stated that while driving at various speeds the headlights would malfunction sporadically without any warnings. Neither the dealer nor the manufacturer was notified of this failure. The VIN was unknown. The failure mileage was 102,340. Updated 09/12/2012

- Hopkins, SC, USA

Low beam headlights shut off while driving. Highbeams and fogs still work. Problem goes away after vehicle sits turned off. Occurances getting more frequent. Very dangerous.

- Kansas City, KS, USA

Left rear blinker does not turn work. Bulb has been replaced. The when I turn on the blinker it makes a rapid blinking noise.

- New Port Richey, FL, USA

When I first purchased this vehicle I thought I had a great SUV. Little did I know that within the first month of owning it did I make a huge mistake. I am a single mother of 2 kids. I checked out the crash ratings and they were great!! I liked everything about my TB. Looking back, after the 4th problem within that first month. I should have ran away screaming from it, as I do now daily. The lights flicker when you drive at night. The headlights constantly go out. The check gauges light is constantly coming on. The oil pressure gauge drops for no apparent reason. The tach goes crazy. The "bell" for the lights (when you have the keys out and the lights are still on, or when you have the keys in and the drivers door open) works when it wants to. The battery gauge works when it feels like it. The gas gauge hasn't had a problem lately. I am wondering...doesn't all of that constitute as a safety problem"? I have had the lights looked at and am told there isn't anything that can be done..really?" I am going to have to have the gauges looked at now and from what I see it will cost about $600-$800. Where other Chevy vehicles have had this covered under a recall. There are many other problems I've had, the O2 sensor, temp gauge, other lighting issues that I have taken care of but this is getting to be a bit much. I see many others have had this problem. It can't be from normal wear on the vehicle. Please do something about this before someone's family really gets hurt, if they haven't already.

- Unadilla, NY, USA

I have a 2004 Chevy Trailblazer; while driving on the highway; all gauges, lights, etc. Abruptly stopped working and continue to not work. I researched on line and found it could be what is called the "cluster board". I took my vehicle to a local Chevy dealer in daytona beach fl. They insisted it was the ignition switch. They replaced that mechanism for just under $300. The following week (this occurred in 2010); the exact same situation recurred; so I brought it back to the dealer and they then agreed it was the cluster board which would now cost me close to $700. In order to avoid being ripped off to the tune of almost $1K; I purchased a gps unit so I could at least monitor my speed. The speed/rpms never register correctly; however, so far the other gauges seems to be ok (except for the oil pressure, it goes out of whack frequently so I just bring it in quickly to make sure I have sufficient oil and that it's clear/clean). Most recently my headlights just go out without warning; I am able to use the high beams, but of course that puts me in jeopardy of getting a ticket. There are so many complaints on the 2004 Chevy Trailblazer - I do not understand why there has not been a recall on the cluster board and the electrical issues (lighting). I cannot afford to have all the repairs completed and would like to see Chevrolet take on some responsibility for the cost of these flaws in the manufacturing of this vehicle.

- Ormond Beach, FL, USA

The contact owns a 2004 Chevrolet Trailblazer. The contact stated that the vehicle would not start and the only lights that would function were the fog lights and high beams. The vehicle was not taken to have the failure diagnosed or repaired. The manufacturer was made aware of the failure and offered no assistance. The failure and the current mileages were 91,000.

- Calumet, IL, USA

Since purchasing our Blazer, we have replaced both headlight bulbs numerous of times including the sockets for each side. My headlights have been known to work one day and not the next. Or we can simply tap it and it will go out/come on. In the last 3 months I have had the bulb on the driver side replaced twice! we have speculated that the wires are loose but when inspected, that does not seem to be the case. I have had my car at the shop (not Chevy they cost too much) and they have not found anything more than a burnt bulb. Within the last 2 months, I was driving on a road that was not well lit at about 10P when both headlights went out. After pulling over & deciding the only way to make it home was to drive with my flashers on, I continued my way home. Half way home they came back on but before I got home they went out again. How does that happen" again, I would say it's a loose wire, but what are the odds of that on both sides" now, tonight, while my 17 year old son was driving (11P) with 2 friends with him, both headlights went out; but came back on. My lights have been known to flicker, like they are not getting enough power/too much. I have called a local dealer & am told they can run a test to see what they find. That would be great, if I had the cash flow for it; as it's not cheap just for them to "run" the test not fix it...that will cost extra. I am not sure how Chevy feels there is not an issue with the headlights? if you know exactly what my issue is please tell me so that I can have some one I can afford to pay, fix it. Buying bulbs is the least of my worries if that was the only issue. But for both headlights to go out at the same time, that's an issue! I would hope that you, Chevy, realize this is an ongoing issue & really has nothing to do with mileage. The headlights have been an issue since we bought the vehicle.

- Omaha, NE, USA

My head lights don't come on randomly. Randomly they do. Obviously, this is a serious safety issue especially at night. No, it's not light bulb replacemet issues.....other blog sites have complained about the same issues. Very dangerous!!!! the gas gauge also is not working properly. When the gas gets low it blinks on for a second then adds more gas to the panel. People could run out of gas unknowingly. Also very dangerous!

- Columbus, OH, USA

The contact owns a 2004 Chevrolet Trailblazer. The contact stated that the vehicle was parked when he attempted to install a child safety seat in the third row seating, but none of the seat belts would successfully tighten and retain the child seat. The vehicle was not taken to have the failure diagnosed or repaired. The contact also stated that the headlights were experiencing a recurring failure in which they would periodically burn out. Upon examining the headlight housing, the contact noticed that the wires were burned. The contact stated that he replaced each headlight approximately three times. The manufacturer was not made aware of the failures. The approximate failure mileage was 85,000. The VIN was unavailable.

- Clinton, MA, USA

Driving down highway headlights go out but foglights and high beams work. Headlights come back on after awhile.

- Chesapeake, VA, USA

Automatic headlights go completely off for no reason, and then will come back on but no apparent reason, leaving you driving completely in the dark. (turning the car off and restarting it does not effect it either.) daytime running lights will also go off. This problem 1st began appr 2 years ago but has become more frequent 3 times a week in the last 6 months. Also the speedometer and tachometer no longer work. They periodically will come back on but has not worked in 2 weeks.

- Orlando, FL, USA

Instrument cluster failure on 2004 Chevrolet Trailblazer. Oil pressure and amps gauge malfunction. Mechanic quoted price $650 to replace cluster. Emissions failure paid dealer approximately $375 to replace emissions pump. Air conditioning mode motor actuator out; blower doesn't operate on high setting. Dealer quoted price $750 to fix air conditioner. Sporadic electrical issues-service engine soon light on-first time code read faulty thermostat cooling sensor, next it read faulty air mass sensor, another time it read faulty emissions sensor. Mechanic quoted price $40 per hour plus parts to isolate problem. A person could go broke before fixing possible problems, considering no accident occurred due to all these possibilities. Front suspension problems, hard to isolate. Paid mechanic $135 to replace right side inner tie rod end. Did not fix problem. Problem occurs when returning steering wheel from a right turn, front right side makes a single "pop" sound. Had to replace "burnt" headlight pigtails on front, and park light pigtail on right rear. Property damage is considered damage to vehicle due to the complaints listed.

- Linn Valley, KS, USA

I have been having a problem with the lights going out while driving. I usually have to pull over and shut vehicle off and let it set for awhile. Once I restart it works. Well now they don't work at all. I replaced the headlamps several times. I have to drive with high beams because the dims don't work.

- Zanesville, OH, USA

Headlight low beams go out without warning. Hi-beams and foglights still work. This has happened without warning on four separate occasions at various speeds. All fuses, bulbs and relays checked, no fault found.

- Kansas City, KS, USA

I have a 2004 Chevy Trailblazer that has defective headlights. It started over a year ago, but was rare. When I drive at night the lights suddenly go out. The parking light and the high beams still work. It has been getting more frequent and in the last month it has happened several times. My engine light has also been on for months. I have had a diagnostic test done by a mechanic and he informed me that I had a loose gas cap. I bought a new one and it has not resolved that problem. Now I wonder if it remains on because of the light issue. This is a problem because I live in an unincorporated area that has minimal lighting at night. I have looked on the internet and there several people have reported that same issue.

- Loxahatchee, FL, USA

There are several defects on Chevy trail Blazer mine in particular is with the instrument cluster panel because it stopped recording the speed, amount of gas in my vehicle, essential to driving safety, proper speed maintenance and ensuring it wont stall out due to lack of gas in the vehicle while on the freeway at high speeds. In addition the night lights turn off randomly while driving at night and that is dangerous to me and my children when driving at night which I do often to commute home from work. There are different dates for the defects the cluster panel gage was proximately 6 or 8 months old, the manufacturer was contacted they stated it was not hazardous to my driving and that since it was not under warranty due to being a 2004 the best they could do was 10% off, I felt it was a hazard at the time of the report they fixed an issue with the turn signals but now my headlights are turning on and off randomly at night and it is scary to be driving at night and your lights go off and you cant see a thing. The lights have been malfunctioning for the last 3 to 4 months have not reported it because of the lack of response by the manufacturer with prior issue.

- El Paso , TX, USA

2004 Chevrolet Trailblazer, while driving at night the low beam lights went out, I had to drive home with high beams on, this is a major concern, it is unsafe on the road. It has happen several time, they usually come back on, but not this time.

- Arlington, TN, USA

Headlights continually burn out. Replace every month! just replaced on 2 days ago and already out again! speedometer does not work.

- Rush City, MN, USA

Headlights flicker on vehicle, interior lights come on, voltage drops to 10V. Dealers state "nothing wrong" I been living with this issue since truck was new in 05. Please ck website "trailvoy.com" common issue.

- Sandy Hook, CT, USA

Started the vehicle (at night), low beam headlights were not working. Fuses were checked, they were fine.

- Mount Gilead, OH, USA