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2003 Chevrolet Trailblazer EXT 370Problems, recalls & complaints

NHTSA has logged 14 owner complaints about the 2003 Chevrolet Trailblazer EXT 370, most often about the electrical system. It has no vehicle safety recalls on record.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls0None on recordOwner complaints140 with a crash, fire or injuryTypical failure mileage140kElectrical system, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through March 3, 2016. Updated daily.

Complaints by system

Where the 2003 Chevrolet Trailblazer EXT 370 has problems

14 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Electrical system60
Fuel/propulsion system30
Exterior lighting20
Engine and engine cooling10
Electronic stability control (ESC)10
Structure10
Tires10
Visibility10
Visibility/wiper10
2 other systems20

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

0 recalls

2003 Chevrolet Trailblazer EXT 370 recalls and how many were fixed

No vehicle safety recalls are on record for this model year.

Best & worst years

2003 vs. every other Trailblazer EXT 370 year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Trailblazer EXT 370 median. How we score

'03'04'05'06
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
3 investigations

NHTSA defect investigations

Federal investigations that included the 2003 Chevrolet Trailblazer EXT 370, and the recalls they led to.

  1. FUEL PUMP MODULE LEAKS GASOLINEEA07009 · closed Aug 28, 2008
    No recall
  2. FUEL PUMP MODULE LEAKS GASOLINEPE07013 · closed Jul 10, 2007
    No recall
  3. FUEL TANK LEAKPE07014 · closed Jun 12, 2007
    No recall
In owners' words

What Trailblazer EXT 370 owners report

Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.

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 WIRE…
Complaint 10817099 · Dec 30, 2015 · 70,000 miles
TL*THE CONTACT OWNS A 2003 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE WINDOWS FAILED TO ROLL UP OR DOWN. ALSO, THE CONTACT MENTIONED THAT THE HEATED SEAT WOULD NOT TURN OFF. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE…
Complaint 10678582 · Jan 23, 2015 · 140,000 miles
TL* THE CONTACT OWNS A 2003 CHEVROLET TRAILBLAZER EXT 370. THE CONTACT STATED THAT THE TURN SIGNALS DO NOT FUNCTION PROPERLY AND THE HAZARD LIGHTS ILLUMINATED INSTEAD OF THE TURN SIGNALS. THE CONTACT WAS ABLE TO PRESS THE BUTTON FOR THE HAZARD LIGHTS WHEN NEEDED, BUT NOT THE TURN SIGNALS. THE…
Complaint 10669711 · Jan 2, 2015 · 150,000 miles

Own a 2003 Trailblazer EXT 370?

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