2006 Chevrolet Trailblazer EXT 370 Exterior lighting Problems
- Complaints
- 4about this part
- Share
- 25%of 16 total for the year
- Median mileage
- 122,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the exterior lighting of the 2006 Chevrolet Trailblazer EXT 370, 25% of the 16 complaints for this model year. Where a mileage was given, the median is 122,500 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.
“While driving on a smooth hi-way (no vibrations) the low beam headlights went off. I switched to hi beams and pulled off the road at first opportunity. When I switched back to low beams and they worked perfectly. This has happened 4 times in the 11 years of ownership, twice in one week. Could never induce the problem.”
NHTSA complaint #10981630, filed 2017-05, 120,000 miles“The headlights while driving will cut off. I have tried replacing headlights with no success. I saw an article about a recall on my car pertaining to headlights. When the article states you guys where told in an email, I don't see that recall on your page. Please contact me with information to fix this problem. Also, my stability control is not working. The light keeps coming on.”
NHTSA complaint #10676455, filed 2015-01, 100,000 miles“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. While the vehicle was stopped at a red light, the headlights failed to illuminate. The failure recurred twice. The vehicle was taken to an independent mechanic where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 126,000.”
NHTSA complaint #10794560, filed 2015-11, 126,000 miles“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. The contact stated that while driving approximately 35 MPH, the headlights became inoperable without warning. The vehicle was taken to the dealer where the contact was informed that the hdm module needed to be replaced. The vehicle was repaired however, the failure recurred. The contact mentioned that the failure recurred several times. The contact received notification of NHTSA campaign number: 15v519000 (exterior lighting) however, the part to do the repair was unavailable. …”
NHTSA complaint #10817671, filed 2016-01, 125,000 milesRelated service bulletins
- 10249011Jan 12, 2024This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
- 10232136Feb 15, 2023This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
- 10023417Oct 1, 2007Automatic headlights inoperative until shifter is placed into gear.
Exterior lighting: other model years
Other parts of the 2006 Chevrolet Trailblazer EXT 370
5 complaintsFuel system
3 complaintsElectronic stability control
2 complaintsEngine
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine cooling
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2006 Chevrolet Trailblazer EXT 370
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