2021 Chevrolet Trailblazer Vehicle speed control Problems
- Complaints
- 5about this part
- Share
- 3%of 198 total for the year
- Median mileage
- 6,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the vehicle speed control of the 2021 Chevrolet Trailblazer, 3% of the 198 complaints for this model year. Where a mileage was given, the median is 6,000 miles. 1 of these say a crash was involved, according to the filers.
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.
“Check engine light is on. Took to O'Reilly and had them put their tester on it to get the codes. Codes show P0700 and P1467. My cruise control and auto start will not work. My mechanic said this is an issue that should be fixed free of charge but no recalls show for my vehicle.”
NHTSA complaint #11656877, filed 2025-04“Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I’m never buying American again. …”
NHTSA complaint #11645476, filed 2025-02“3 times in the last year while we were driving the acceleration wen very high like from 50 to all of a sudden went up to about 80. I had to stand on the brake and try to pull over. Still accelerating I put it in park and shut it off. When you restart it it drive fine again. This has happened three times and the dealership says they can't find a problem. We are stuck driving a death trap. Please help. They wanna charge diagnosis everything I take it in. Then they say they can't find nothing. Now I am finding others that have had same issue and dealership says there is no problem. …”
NHTSA complaint #11480422, filed 2022-08“Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say it’s the turbo charger. …”
NHTSA complaint #11690808, filed 2025-10Related service bulletins
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
- 11006986Sep 4, 2024This Preliminary information communicates to the tech the diagnostic steps if they encounter at condition where the adaptive cruise, regular cruise control or lane keep assist…
Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 3% |
| 2023 | 1 | 1% |
| 2022 | 3 | 3% |
| 2021 | 5 | 3% |
| 2009 | 1 | 4% |
| 2008 | 8 | 4% |
| 2007 | 11 | 2% |
| 2006 | 17 | 2% |
| 2005 | 76 | 5% |
| 2004 | 38 | 4% |
| 2003 | 25 | 3% |
| 2002 | 17 | 1% |
| 2000 | 1 | 4% |
Other parts of the 2021 Chevrolet Trailblazer
59 complaintsElectrical system
41 complaintsTransmission and drivetrain
41 complaintsEngine
39 complaintsBrakes
32 complaintsFuel system
18 complaintsForward collision avoidance
11 complaintsBody and structure
8 complaintsSteering
6 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
3 complaintsBack-over prevention (rear camera)
3 complaints
← All problems reported for the 2021 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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