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Chevrolet Trailblazer EXT 370Model year report

2004 Chevrolet Trailblazer EXT 370 Problems

Complaints
15filed with NHTSA
Median mileage
96,250miles, 12 complaints with mileage
Recalls
0campaigns on record
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

Sources: NHTSA records for the 2004 Chevrolet Trailblazer EXT 370 (complaints, recalls, investigations). Report an error

NHTSA recorded 15 consumer complaints for the 2004 Chevrolet Trailblazer EXT 370. The part named most often is electrical system, with 6 complaints (40% of the total), followed by fuel system (6) and air bags (1). 12 of the complaints include a mileage, and 17% of those were filed for vehicles with under 50,000 miles; the median is 96,250 miles. Of all complaints, 1 involved a crash, 1 an injury, according to the filers. NHTSA lists 0 recall campaigns and 82 technical service bulletins for this model year. Electrical system complaints overlap with 13 technical service bulletins filed under the same part. Fuel system complaints overlap with 3 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “On about 6 occasions over the past couple weeks my sunroof has opened by itself. On each occasion it has happened after backing up and then putting it in drive. When it happens I try to stop it by pressing the close button but it doesn't do anything and continues to open fully and stops. After about 20-30 seconds I can close it.”

NHTSA complaint #10460797, filed 2012-06, 111,000 miles

Fuel system: “Received a letter from GM regarding potential problem with fuel tank inlet valve. Took vehicle to dealer len stoler, inc in westminster md in december. Problem was diagnosed as a fuel tank inlet valve fracture. On dec 3rd 2015 fuel tank was replaced and inspection done. Subsequent to service when fuel was placed in vehicle gas poured out on pavement. Prior to that service this was not an issue only the smell of fuel in the interior and a few drops of fuel noted. Took vehicle back to dealer and problem now diagnosed as inlet pipe fracture. …”

NHTSA complaint #10820919, filed 2016-01, 92,000 miles

Brakes: “I am extremely disappointment and afraid of my trailblazer at this point. We purchased the vehicle used and within a week of having the truck it started dying at redlights. Out of nowhere the truck just shuts off in the middle of the road. It has got to the point now that it does it while the vehicle is actually in motion. I have 3 kids and this is not safe! I lose total control of the vehicle. The headlight plug has burned up twice on the driver side and it has been replaced. …”

NHTSA complaint #10594004, filed 2014-05

Mileage when problems were reported

17% of the 12 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 74,000 and 115,869 miles.

0%0–108%10–258%25–5017%50–7517%75–10042%100–1508%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (12 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 96,250 miles.

Complaints by year filed

Trend: stable. Complaints filed in the last 3 full calendar years are within 25% of the 3 years before.

2006200720103201220132014320152016
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

NHTSA lists no recall campaigns for the 2004 Chevrolet Trailblazer EXT 370 in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 82 on record; the latest 10 are shown.

See all 82 bulletins →

Other model years of the Chevrolet Trailblazer EXT 370

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
200616105,0000———Stable
200523770,0000——Not compared (before 2008)Stable
20041596,2500———Stable
200314140,0000———Not enough data
20026120,0000———Not enough data

All Chevrolet Trailblazer EXT 370 model years

Frequently asked questions

How many NHTSA complaints does the 2004 Chevrolet Trailblazer EXT 370 have?

NHTSA recorded 15 consumer complaints for the 2004 Chevrolet Trailblazer EXT 370 as of Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2004 Chevrolet Trailblazer EXT 370 is reported most often?

Electrical system is named most often, in 6 complaints (40% of the total), followed by fuel system with 6.

Has the 2004 Chevrolet Trailblazer EXT 370 been recalled?

NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 2004 Chevrolet Trailblazer EXT 370 reported?

Among the 12 complaints that include a mileage, the median is 96,250 miles and the middle half falls between 74,000 and 115,869 miles; 17% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.