Complaints
406
Crashes
8
Fires
7
Injuries
11
Fatalities
—
Recalls
0
Worst 2003 Chevrolet Trailblazer Ext Problems
Top 3 most-reported issues with average mileage at failure.
#152 complaints
Electrical Faults
Avg mileage:95,194 mi
Crash-related:1
Fires:4
#236 complaints
Gasoline Fuel System
Avg mileage:103,781 mi
#329 complaints
Automatic Transmission
Avg mileage:71,909 mi
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All Problems by Category
Every NHTSA complaint category for the 2003 Chevrolet Trailblazer Ext.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 52 | 1 | 4 | 95,194 mi | |
| Gasoline Fuel System | 36 | — | — | 103,781 mi | |
| Automatic Transmission | 29 | — | — | 71,909 mi | |
| Instrument Cluster | 22 | — | — | 76,586 mi | |
| Fuel System, Gasoline:Storage:Tank Assembly | 15 | — | — | 68,411 mi | |
| Fuel System, Gasoline:Storage:Tank Assembly:Filler Pipe And Cap | 13 | — | — | 50,434 mi | |
| Fuel Pump | 11 | — | — | 59,053 mi | |
| Headlight/Taillight Failures | 10 | — | — | 85,728 mi | |
| Visibility:Power Window Devices And Controls | 9 | — | — | 138,336 mi | |
| Transmission / Drivetrain | 8 | — | 1 | 98,200 mi | |
| Fuel System | 7 | — | — | 135,136 mi | |
| Latches / Locks | 7 | — | — | 101,117 mi | |
| Body Structure | 7 | — | — | 119,800 mi | |
| Unintended Acceleration | 7 | — | — | 116,057 mi | |
| Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings | 6 | — | — | 96,586 mi | |
| Latches/Locks/Linkages:Doors:Latch | 6 | — | — | 46,658 mi | |
| Power Train:Transfer Case (4-Wheel Drive) | 6 | 1 | — | 26,728 mi | |
| Engine & Cooling | 5 | — | — | 84,224 mi | |
| Engine And Engine Cooling:Cooling System | 5 | — | — | 94,818 mi | |
| Exterior Lighting:Headlights | 5 | — | — | 46,439 mi | |
| Fuel System, Gasoline:Storage | 4 | — | — | — | |
| Seat-Related Issues | 4 | 1 | 1 | — | |
| Structure:Body:Hatchback/Liftgate:Hinge And Attachments | 4 | — | — | — | |
| Suspension:Front | 4 | — | — | — | |
| Side/Rear Glass | 4 | — | — | — | |
| Airbags | 3 | 2 | — | — | |
| Engine And Engine Cooling:Engine | 3 | — | — | — | |
| Other Equipment | 3 | — | — | — | |
| Exterior Lighting:Brake Lights | 3 | — | — | — |
Electrical Faults
52
complaints
Crashes
1
Fires
4
Avg Miles
95,194
Gasoline Fuel System
36
complaints
Crashes
—
Fires
—
Avg Miles
103,781
Automatic Transmission
29
complaints
Crashes
—
Fires
—
Avg Miles
71,909
Instrument Cluster
22
complaints
Crashes
—
Fires
—
Avg Miles
76,586
Fuel System, Gasoline:Storage:Tank Assembly
15
complaints
Crashes
—
Fires
—
Avg Miles
68,411
Fuel System, Gasoline:Storage:Tank Assembly:Filler Pipe And Cap
13
complaints
Crashes
—
Fires
—
Avg Miles
50,434
Fuel Pump
11
complaints
Crashes
—
Fires
—
Avg Miles
59,053
Headlight/Taillight Failures
10
complaints
Crashes
—
Fires
—
Avg Miles
85,728
Visibility:Power Window Devices And Controls
9
complaints
Crashes
—
Fires
—
Avg Miles
138,336
Transmission / Drivetrain
8
complaints
Crashes
—
Fires
1
Avg Miles
98,200
Fuel System
7
complaints
Crashes
—
Fires
—
Avg Miles
135,136
Latches / Locks
7
complaints
Crashes
—
Fires
—
Avg Miles
101,117
Body Structure
7
complaints
Crashes
—
Fires
—
Avg Miles
119,800
Unintended Acceleration
7
complaints
Crashes
—
Fires
—
Avg Miles
116,057
Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings
6
complaints
Crashes
—
Fires
—
Avg Miles
96,586
Latches/Locks/Linkages:Doors:Latch
6
complaints
Crashes
—
Fires
—
Avg Miles
46,658
Power Train:Transfer Case (4-Wheel Drive)
6
complaints
Crashes
1
Fires
—
Avg Miles
26,728
Engine & Cooling
5
complaints
Crashes
—
Fires
—
Avg Miles
84,224
Engine And Engine Cooling:Cooling System
5
complaints
Crashes
—
Fires
—
Avg Miles
94,818
Exterior Lighting:Headlights
5
complaints
Crashes
—
Fires
—
Avg Miles
46,439
Fuel System, Gasoline:Storage
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Seat-Related Issues
4
complaints
Crashes
1
Fires
1
Avg Miles
—
Structure:Body:Hatchback/Liftgate:Hinge And Attachments
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Suspension:Front
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Side/Rear Glass
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Airbags
3
complaints
Crashes
2
Fires
—
Avg Miles
—
Engine And Engine Cooling:Engine
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Other Equipment
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Exterior Lighting:Brake Lights
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2003 Chevrolet Trailblazer Ext. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Other Chevrolet Trailblazer Ext Years
2003 Chevrolet Trailblazer Ext — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2003 Chevrolet Trailblazer Ext reliable?
Verdict: Above Average Complaints. The 2003 Chevrolet Trailblazer Ext has 406 NHTSA complaints, 8 crash-related, and 0 recall campaigns. The most common issue is Electrical Faults with 52 complaints. Source: NHTSA via VinItel.
What are common problems with the 2003 Chevrolet Trailblazer Ext?
Top reported problems: Electrical Faults (52 complaints, avg 95,194 mi); Gasoline Fuel System (36 complaints, avg 103,781 mi); Automatic Transmission (29 complaints, avg 71,909 mi). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2003 Chevrolet Trailblazer Ext?
The weighted average mileage at time of complaint is about 86,946 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2003 Chevrolet Trailblazer Ext?
NHTSA complaints for the 2003 Chevrolet Trailblazer Ext include 8 crash-related reports, 7 fire reports, 11 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2003 Chevrolet Trailblazer Ext have any recalls?
No NHTSA recall campaigns have been issued for the 2003 Chevrolet Trailblazer Ext as of the latest data sync. Verify by VIN for the most current status — new recalls can be issued years after a model year ships.
Should I buy a 2003 Chevrolet Trailblazer Ext?
Slightly worse than average. Most owners are fine; problem clusters are concentrated around specific components. Check the issues table below and match against the specific car's mileage.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full Chevrolet Trailblazer Ext reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2003 Chevrolet Trailblazer Ext
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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