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Exterior lightingPart report

2009 Chevrolet Trailblazer Exterior lighting Problems

Complaints
13about this part
Share
48%of 27 total for the year
Median mileage
80,800miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 13 complaints about the exterior lighting of the 2009 Chevrolet Trailblazer, 48% of the 27 complaints for this model year. Where a mileage was given, the median is 80,800 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The headlights have failed. All the lights blink while you ride along. The two back doors will not lock or unlock and the front doors are starting to not lock or unlock properly. The items that let you know when a tire is low in air are failing. The last one costing over $100 to fix. I am getting very upset with the electric parts in this Trailblazer. This has been going on since purchase. As a photo I can send you a photo of the vehicle.”

NHTSA complaint #10885231, filed 2016-07, 30,000 miles

“I just saw the recall GM is doing for the 2006~2007 Chevrolet Trailblazer. I noticed that other years are not affected specifically mine. My 2009 Trailblazer currently has this issues, both low beam head lamps do not work. I have tried everything to get them to work. I have had no luck. Please investigate this issue further. We have to drive with our high beam lights which could possibly cause an accident. Thank you”

NHTSA complaint #10661488, filed 2014-12, 83,000 miles

“The low beam headlights keep going out. All other lights stay on and the high beam lights work. Only the low beam headlights are affected. This has happened while in motion and from a stopped position when first starting the car and putting it in drive. I have researched it on several group we sights and found that the problem is the headlight dimmer module (hdm). I have replaced this two times over the last two years which always fixes it for about a year then it starts failing again. This is a very dangerous situation because it happens after dark. …”

NHTSA complaint #10956853, filed 2017-02, 85,000 miles

“While driving at 30 MPH, low beam headlights went out. High beams functioned and fog lamps functioned. Drove app. 5 miles and pulled off road and turned the car off. Turned the car on and the lights still did not function. Left the car for 2 hours and returned. Started the car and lights went on for 1 mile and then went off again. The lights went on again the following day for less than a mile of driving.”

NHTSA complaint #10678191, filed 2015-01, 81,600 miles

“Traveling between 50 to 55 MPH. Headlights started to dim and flicker. On 10/29/2014, was traveling home from work at night and the headlamps went out without warning. Traveled with hazards on for approximately five miles before headlamps came back on. Not sure what the issue may be.”

NHTSA complaint #10651180, filed 2014-10, 44,300 miles

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
202514%
202413%
202311%
202111%
20091348%
2008179%
200715121%
200611210%
200514010%
20041019%
2003779%
200214312%
2001315%
200014%

Other parts of the 2009 Chevrolet Trailblazer

Electrical system
9 complaints
Air bags
4 complaints
Electronic stability control
3 complaints
Engine
2 complaints
Brakes
1 complaints
Fuel system
1 complaints
Other or unknown
1 complaints
Seat belts
1 complaints
Transmission and drivetrain
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2009 Chevrolet Trailblazer

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology