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Chevrolet TrailblazerModel year report

2001 Chevrolet Trailblazer Problems

Complaints
20filed with NHTSA
Median mileage
76,531miles, 11 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 2001 Chevrolet Trailblazer (complaints, recalls, investigations). Report an error

NHTSA recorded 20 consumer complaints for the 2001 Chevrolet Trailblazer. The part named most often is engine cooling, with 5 complaints (25% of the total), followed by transmission and drivetrain (5) and brakes (4). 11 of the complaints include a mileage, and 18% of those were filed for vehicles with under 50,000 miles; the median is 76,531 miles. Of all complaints, 2 involved a crash, according to the filers. NHTSA lists 0 recall campaigns and 73 technical service bulletins for this model year. Engine cooling complaints overlap with 16 technical service bulletins filed under the same part. Transmission and drivetrain complaints overlap with 5 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

Engine cooling: “Consumer stated that while driving and without warning oil is leaking from the vehicle and causing the consumer to refill more then often. Cause unknown. Dealer notified. Ts”

NHTSA complaint #10003723, filed 2003-01

Transmission and drivetrain: “I have 2 Chevrolet trailblazers and the transmission has failed in both in the same way (broken sun shell). My research shows this is a very common problem and was fixed by GM starting in 2003.”

NHTSA complaint #10144032, filed 2005-11, 80,000 miles

Brakes: “While coming to a stop in my 2001 chevy Trailblazer the brake system (ABS) keeps engaging causing it not to stop. I have went through many stop signs and intersections from not being able to stop. Changed all the brakes ,bleed the brakes and put new sensors on..still having the same issues . I have read that GM knows that this is a flaw in the design ,what can be done about it?”

NHTSA complaint #10286248, filed 2009-10, 76,531 miles

Exterior lighting: “The contact owns a 2001 Chevrolet Trailblazer. The contact stated that the brake lights failed to illuminate when the brake pedal was depressed. The dealer stated that the brake light switch needed to be replaced. The vehicle was not repaired and the manufacturer was notified. The failure mileage was 60,000.”

NHTSA complaint #10621354, filed 2014-08, 60,000 miles

Mileage when problems were reported

18% of the 11 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 50,000 and 110,000 miles.

9%0–100%10–259%25–5027%50–7527%75–10027%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (11 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 76,531 miles.

Complaints by year filed

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

620032005200920132016
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 2001 Chevrolet Trailblazer 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. 73 on record; the latest 10 are shown.

See all 73 bulletins →

Other model years of the Chevrolet Trailblazer

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20261212,0001531—Too new
20252618,7501531Too new to compareToo new
20243610,0001531Too new to compareToo new
20237542,481053150 · TypicalToo new
202211237,750153169 · MoreRising
202119720,00044–531100 · MoreRising
20092783,0000—160 · FewerStable
200819373,0000—1649 · TypicalFalling
200773271,1005—16Not compared (before 2008)Falling
20061,10868,0008—16Not compared (before 2008)Falling
20051,46670,0002—15Not compared (before 2008)Falling
20041,08167,0752—16Not compared (before 2008)Falling
200390175,0008—16Not compared (before 2008)Falling
20021,14965,00012—16Not compared (before 2008)Falling
20012076,5310———Stable
20002670,5000——Not compared (before 2008)Stable

All Chevrolet Trailblazer model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2001 Chevrolet Trailblazer have?

NHTSA recorded 20 consumer complaints for the 2001 Chevrolet Trailblazer as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2001 Chevrolet Trailblazer is reported most often?

Engine cooling is named most often, in 5 complaints (25% of the total), followed by transmission and drivetrain with 5.

Has the 2001 Chevrolet Trailblazer 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 2001 Chevrolet Trailblazer reported?

Among the 11 complaints that include a mileage, the median is 76,531 miles and the middle half falls between 50,000 and 110,000 miles; 18% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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.