2009 Chevrolet Trailblazer Other or unknown Problems
- Complaints
- 1about this part
- Share
- 4%of 27 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the other or unknown of the 2009 Chevrolet Trailblazer, 4% of the 27 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My first complaint is that headlights, low beam, would not work. Only high beams worked. The issue stopped, unexplainable, on its own, has not occurred again. The 2nd complaint is the radio volume would 'slip' as if there were a loose wire to the speakers, and loss of sound became more frequent and for longer periods of time, eventually all sound stopped, it has not been fixed, as of yet. 3rd complaint, a brand new battery, in under a year of use, went completely dead, without any visible explanation. …”
NHTSA complaint #11747022, filed 2026-06Related service bulletins
- 11023091Sep 9, 2025New Vehicle Monitoring Programs Section in IVH
- 11021792Aug 7, 2025This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the…
- 11020816Jul 18, 2025This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- 11019074May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019073May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11019072May 30, 2025This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and…
- 11014455Feb 20, 2025This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint…
- 11011782Dec 7, 2024This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads…
- 11007744Sep 12, 2024This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General…
- 11007743Sep 12, 2024This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 4 | 33% |
| 2025 | 7 | 27% |
| 2024 | 6 | 17% |
| 2023 | 15 | 20% |
| 2022 | 36 | 32% |
| 2021 | 59 | 30% |
| 2009 | 1 | 4% |
| 2008 | 9 | 5% |
| 2007 | 16 | 2% |
| 2006 | 23 | 2% |
| 2005 | 32 | 2% |
| 2004 | 21 | 2% |
| 2003 | 19 | 2% |
| 2002 | 36 | 3% |
| 2001 | 2 | 10% |
Other parts of the 2009 Chevrolet Trailblazer
13 complaintsElectrical system
9 complaintsAir bags
4 complaintsElectronic stability control
3 complaintsEngine
2 complaintsBrakes
1 complaintsFuel system
1 complaintsSeat belts
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2009 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology