Built from official NHTSA complaint and recall data · data through 07/12/2026
High complaint levelIts most-reported problem — Electrical System — runs 2.6× the fleet median for that category across the 2547 model-years tracked on this site.
901Complaints
8Recalls
68Crashes
14Fires
66Injured
2Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Electrical System (18.9% of complaints) — has no NHTSA recall or open investigation on file.
Electrical System complaints here are 2.6× the median for that category across the 2547 model-years tracked on this site.
2 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 4 rest on owner reports alone.
Complaint category
Reports
Official status
Reference
Electrical System
170 · 18.9%
No official action
—
Electrical System: Instrument Cluster/panel
82 · 9.1%
No official action
—
Fuel System, Gasoline
56 · 6.2%
Investigation closed
EA07009 · PE07013 · PE04001
Fuel/propulsion System
55 · 6.1%
Investigation closed
EA07009 · PE07013 · PE04001
Air Bags
45 · 5%
Recalled
Recall 02V222000 · Recall 03V051000
Power Train:automatic Transmission
38 · 4.2%
Recalled
Recall 03V075000
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 901 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING VEHICLES, AND AN INOPERATIVE REAR TURN SIGNAL LAMP WILL NOT CONVEY THE DRIVER'S INTENTION TO TURN TO DRIVERS IN FOLLOWING VEHICLES. BOTH OF THESE FAILURES CAN INCREASE THE RISK OF A CRASH. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTENTIALLY WARN OTHERS OF AN IMPAIRED VEHICLE OPERATING CONDITION INCREASING THE RISK OF A CRASH. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHICH COULD RESULT IN A CRASH. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
PIECES OF THE INFLATOR COULD STRIKE AND INJURE VEHICLE OCCUPANTS AND THE AIR BAG CUSHION WOULD NOT INFLATE FULLY, REDUCING THE CAPABILITY OF THE BAG TO PROTECT THE DRIVER. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
THIS COULD RESULT IN REDUCED CAPABILITY OF THE AIR BAG TO PROTECT THE DRIVER. ALSO IF THE AIR BAG INFLATOR RUPTURED, PIECES OF THE INFLATOR COULD STRIKE AND INJURE THE VEHICLE OCCUPANTS. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
THESE OVERRIDES ARE NOT PERMITTED UNLESS THE VEHICLE HAS A LOCKING STEERING COLUMN. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“I HAVE HAD THE EXACT PROBLEMS AS STATED IN 10047425. WINDSHIELD WIPERS WENT OUT COMPLETELY ON A RAINY DAY, MODULE REPLACED, A/C BROKE ON A…”NHTSA complaint 10055194 — filed 01/29/2004 · ELECTRICAL SYSTEM
“OWNED 03 TRAILBLAZER FOR 4 MONTHS AND HAS GIVEN ME ELECTRICAL & MECHANICAL PROBLEMS. I HAD ONE PROBLEM SINCE I FIRST BOUGHT THIS VEHICLE AND…”NHTSA complaint 10052419 — filed 01/05/2004 · ELECTRICAL SYSTEM
“WHEN ENTERING OR EXITING THE VEHICLE CONSUMER IS EXPERIENCING SPARKS BY SOME ELECTRICAL SURGE. THE ELECTRICAL SURGE OCCURS WHEN METAL IS TOUCHED. CONSUMER NOTED THIS…”NHTSA complaint 10046501 — filed 12/02/2003 · ELECTRICAL SYSTEM
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2003 Chevrolet Trailblazer?
Electrical system issues are the most-reported category, cited in 170 of 901 NHTSA complaints (18.9%), followed by electrical system: instrument cluster/panel (82), fuel system, gasoline (56), fuel/propulsion system (55). Complaints are unverified owner reports.
How many complaints does the 2003 Chevrolet Trailblazer have?
901 complaints were on file with NHTSA as of 07/12/2026. Of those, 68 involved a crash, 14 involved a fire, and 66 reported injuries. 2 deaths were reported.
Does the 2003 Chevrolet Trailblazer have any recalls?
Yes — 8 NHTSA safety recall campaigns, including campaign 04V527000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2003 Chevrolet Trailblazer's reported problems?
2 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.
Install CarModelProblemsAdd it to your home screen for one-tap access — no app store.
Install CarModelProblemsTap Share, then Add to Home Screen.