The contact owns a 2007 Chevrolet Trailblazer. The contact stated while driving 55 MPH at nighttime, the low-beam headlights started flickering, and then became inoperable. The vehicle decelerated and veered to the side of the road. The contact engaged the high-beam headlights and continued driving. The contact stated that he replaced the low-beam headlights relay several times. Additionally, the contact replaced the low beam headlights switch, bulb, and fuses; however, the failure persisted. The local dealer and a second dealer, Pohanka Chevrolet (13915 US-50, Chantilly, VA 20151) were notified of the failure and informed the contact that the VIN was not included in a recall. The contact related the failure to GM Campaign Number: N140291. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 133,000.
2007 Chevrolet Trailblazer lights problems
151 complaints (21% of all complaints for this car). Typical mileage when it fails: 113,936.
- owner complaints
- 151
- of this car's complaints
- 21%
- typical mileage
- 113,936
- crashes
- 0
- recalls
- 1
Which part fails
- Headlights10
- Headlights: switch2
At what mileage
Complaints by mileage at the time of the problem.
Chevrolet Trailblazer lights problems in other years
Specific symptoms reported on the 2007 Chevrolet Trailblazer lights
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
Exterior lighting: headlights
- What is wrong
- General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.
- Risk
- Headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash.
- Remedy
- GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1‑800‑521‑7300 or Pontiac customer service at 1‑800‑762‑2737. GM's number for this recall is 14291.
Recall number 15V519000 · Recall details
Related investigations
Loss of Headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at under the identification numbers in the attached document.
RQ17002
What 2007 Chevrolet Trailblazer owners say
Most recent owner complaints, unedited.
Keeps blowing #46 headlight relay. Happens every 2-3 weeks. When this happens the low beams stop working. I have to switch to high beams to continue driving.
The contact owns a 2007 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the headlights became inoperable without warning. The contact stated that the failure had occurred several times. The contact replaced the headlight bulbs three times, the fuse, and the switch. The failure persisted. The contact had spoken with the dealer who stated the headlamp driver module (HDM) module needed to be replaced; however, the vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The manufacturer informed the contact that an unknown recall for the failure had expired. The approximate failure mileage was 200,200.
My headlights turn off bybthemselves while driving, other times they wont turn off at all after car is turned off even while in park, and other times they turn on while switched to off position randomly in the middle of te night resulting in a dead battery come morning. My driver window no longer works as well as driver power locks. Happening since 2020 random at first now permentant removal of fuse switch in order to shut off lights and the fuse switch is hot to the touch upon removal.
The contact owns a 2007 Chevrolet Trailblazer. The contact stated that while driving at night, the low-beam headlights would not provide adequate illumination for safe driving. The hi-beam headlight would be used to provide adequate illumination. Upon investigation, the contact discovered the federal safety agency Campaign Number: 15V519000 (Exterior Lighting) which she linked to the failure. The contact had taken the vehicle to a dealer where she was informed that there were no recalls on the VIN. The contact was able to replace the module and fuses; however, the headlights remained defective. The vehicle had yet to be repaired. The failure mileage was 219,000.
I noticed around march 18th 2021,that my headlights was out while driving and just 2 days ago my battery died april 12th 2021 due to my ignition switch being stuck it was parked already in my garage
The first thing to go wrong was the power windows don't work properly in the winter, now the air conditioner only blows cold air intermittently, and the most recent problem is the headlights won't work at all, I called the local service center and they said that the electrical recalls were VIN specific, even tho I had the correct make model and year my VIN did not qualify for the recall! I'm very upset that they can be VIN specific but I'm having all the issues on the recalls!! I can no longer drive my vehicle if it is raining, foggy, or dark because I have no headlights!!! I also lost control of my car in the rain and think it has to do with the stabilitrak, the light has been on for a while, luckily I stopped my car before I crashed into anything
Tl* the contact owns a 2007 chevrolet trailblazer. The contact stated that while driving, the headlights and exterior lights flickered off and on for 15 to 20 seconds without warning. The contact called the teeter motor co dealer located at 1512 w moline st, malvern, ar 72104 and was told that there was no recall on the VIN. The contact was told to bring the vehicle in for a diagnostic test. The contact referenced the federal safety agency campaign number: 15v519000 (exterior lighting) and was told that the vehicle was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.*bf consumer stated low beam does not come on at all.
Headlights went off on three different occasions this past week, it also happened once before several months back. They just shut off and while your panicking and hitting the headlight switch several times they finally come back on. We will not drive it at night anymore. Why is my car not recalled when others from the same year are. I have been working in manufacturing for over thirty years and my dad worked on the gm assembly line for thirty years. Don't kid yourself that you know which batch of parts were used on a particular car. My VIN is defective.
Headlights shut off randomly while driving at night. Seems to be exactly as noted in recall # the federal safety agency recall 15v519000, gm's number for this recall is 14291.
Questions about the 2007 Chevrolet Trailblazer lights
Does the 2007 Chevrolet Trailblazer have lights problems?
Owners have filed 151 complaints about the lights of the 2007 Chevrolet Trailblazer, 21% of all its complaints.
At what mileage do 2007 Chevrolet Trailblazer lights problems start?
The typical (median) mileage in owner complaints is 113,936 miles.
Was there a recall on the 2007 Chevrolet Trailblazer lights?
Yes, 1 recall: 15V519000. Check your VIN to see if your car still needs the free repair.
What year does the Chevrolet Trailblazer have the most lights problems?
The Chevrolet Trailblazer model years with the most lights complaints are 2007 (151 complaints), 2002 (144 complaints) and 2005 (143 complaints).
Other 2007 Chevrolet Trailblazer problems
Fuel system 311Electrical 200Visibility 82Engine 34Airbags 27Steering 23Driver assistance 19Transmission 15Brakes 12Acceleration 11Body 11Tires 9Seat belts 8Suspension 7Wheels 6Locks 4Seats 4
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