2021 Subaru Ascent Vehicle speed control Problems
- Complaints
- 2about this part
- Share
- 2%of 104 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the vehicle speed control of the 2021 Subaru Ascent, 2% of the 104 complaints for this model year. 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.
“Adaptive Cruise Control, Automatic Emergency Braking, Forward Collision Warning, Lane Departure Warning, Lane Keeping Assistance, Eye Sight, RAB, some ! Symbol, and check engine light are all on and not working. You know everything that makes a Subaru. This is not the first or even second time. We are on the fourth instance of this happening. We live 2+ hrs away from the closest dealers. The first few times it occurred, we called to make a appointment. Each time was always a few weeks out and the issue would clear a day or two before. This last time has been going on for 6 weeks. …”
NHTSA complaint #11495560, filed 2022-11“The driver was driving into a parking lot preparing to park, when the vehicle accelerated and started going forward at a higher speed. The vehicle struck a parked vehicle, then travelled across the parking lot, over curbs, a grass median, landscaping, and struck a rock building at a high rate of speed, causing a partial collapse of the wall. The vehicle is available for inspection through the insurance company. No analysis of data was done and nothing was inspected. There were no symptoms of the problem beforehand. The vehicle has automatic emergency braking, but it evidently didn't operate. …”
NHTSA complaint #11607255, filed 2024-08Vehicle speed control: other model years
Other parts of the 2021 Subaru Ascent
20 complaintsElectrical system
18 complaintsVisibility (wipers, defrost, mirrors)
18 complaintsOther or unknown
17 complaintsLane departure
15 complaintsEngine
12 complaintsBrakes
9 complaintsForward collision avoidance
7 complaintsSteering
7 complaintsBody and structure
7 complaintsFuel system
2 complaintsTires
2 complaints
← All problems reported for the 2021 Subaru Ascent
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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