2003 Chevrolet Trailblazer EXT 370 Problems, Complaints & Recalls

Source: NHTSA · Updated Mar 3, 2016 · 14 owner complaints analyzed

Compared with other Trailblazer EXT 370 years
About as many complaints as other years 4th of 5 for complaints
Safety recalls
None on file
NHTSA crash rating
Not rated

Owners have filed 14 complaints with NHTSA about the 2003 Chevrolet Trailblazer EXT 370. That ranks 4th out of 5 Trailblazer EXT 370 model years for complaints. The most reported problem area is electrical system (6 complaints, 43%), typically at around 140,000 miles. There are no safety recalls on file for this model year. NHTSA has opened 3 defect investigations involving it.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2003 Chevrolet Trailblazer EXT 370 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System6 · ~140,000 mi
Fuel/propulsion System3 · ~150,000 mi
Exterior Lighting2 · ~150,000 mi
Electronic Stability Control (esc)1
Engine1 · ~109,654 mi
Engine and Engine Cooling1 · ~157,000 mi
Structure1 · ~100,000 mi
Tires1 · ~169,141 mi
Visibility1 · ~140,000 mi
Visibility/wiper1 · ~87,000 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System643%140,000——
Fuel/propulsion System321%150,000——
Exterior Lighting214%150,000——
Electronic Stability Control (esc)17%———
Engine17%109,654——
Engine and Engine Cooling17%157,000——
Structure17%100,000——
Tires17%169,141——
Visibility17%140,000——
Visibility/wiper17%87,000——
Wheels17%169,141——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2015, with 9 complaints
2011: 1201112012: 1201212014: 2201422015: 9201592016: 120161

n = 14 complaints · Source: NHTSA

2003 Chevrolet Trailblazer EXT 370 recalls (0)

No safety recalls are on file for the 2003 Chevrolet Trailblazer EXT 370.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Fuel pump module leaks gasoline (EA07009) — opened Jul 10, 2007, closed Aug 28, 2008.
  • Fuel tank leak (PE07014) — opened Mar 13, 2007, closed Jun 12, 2007.
  • Fuel pump module leaks gasoline (PE07013) — opened Mar 12, 2007, closed Jul 10, 2007.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

There is a known problem with the gas tanks on these vehicles. The vapors cause the check engine light to illuminate. In nys this car will not pass the yearly inspection. Chevrolet has an extended coverage bulletin out but it only is for vehicles that have les than 150,000 miles on it or are not…

Fuel/propulsion System · received Mar 3, 2016 · NHTSA complaint 10839742

2003 chevrolet trailblazer 370 rear passenger side door electrical window control switch would not completely close window . Smelled like electrical wire burning. Had vehicle stop at time and had assistance in removing door interior panel and found electrical window switch completely melted and…

Electrical System · received Dec 30, 2015 · NHTSA complaint 10817099

Tl* the contact owns a 2003 chevrolet trailblazer ext 370. While driving at various speeds, there was an abnormal odor of fuel coming from the vehicle. The failure recurred continuously. The contact observed fuel dripping from the rear driver side of the vehicle. The vehicle was taken to the dealer…

Fuel/propulsion System · received Dec 1, 2015 · NHTSA complaint 10807665

Tl* the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that while driving at various speeds, the vehicle surged forward and the rpms fluctuated without warning. In addition, the contact stated that an abnormal fuel odor emitted from the vehicle as the check fuel warning light…

Fuel/propulsion System · received Nov 27, 2015 · NHTSA complaint 10807225

My wife was driving the suv at highway speed when the front windshield wipers ceased to function during a heavy thunderstorm. She had to pull over because her visibility was obstructed to the point of not being able to operate the vehicle safely.

Visibility/wiper · received Aug 24, 2015 · NHTSA complaint 10758854

Other Chevrolet Trailblazer EXT 370 years

← 2002 Trailblazer EXT 370 · 2004 Trailblazer EXT 370 →

See all Chevrolet Trailblazer EXT 370 problems by year, every Chevrolet model, or the Chevrolet VIN decoder.

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Frequently asked questions

What are the most common problems with the 2003 Chevrolet Trailblazer EXT 370?

Owners most often report electrical system, fuel/propulsion system, exterior lighting problems. The top one, electrical system, accounts for 6 complaints.

Was there a recall on the 2003 Chevrolet Trailblazer EXT 370?

No safety recalls are on file for this model year.

Was the 2003 Chevrolet Trailblazer EXT 370 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Trailblazer EXT 370 model years, the 2003 has about as many complaints as a typical year. Always get a pre-purchase inspection and check the VIN for open recalls.