Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 102 complaints with NHTSA about the 2021 Subaru Ascent, and it carries 2 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Power train | 16 | 16% |
| Visibility/wiper | 13 | 13% |
| Electrical system | 12 | 12% |
| Unknown or other | 6 | 6% |
| Service brakes | 6 | 6% |
| Engine | 4 | 4% |
| Structure | 4 | 4% |
| Lane departure | 4 | 4% |
| Steering | 4 | 4% |
| Visibility | 3 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
After my husband replaced the 12V battery in my 2021 Subaru Ascent Touring ($90,000, fully paid off), Apple CarPlay stopped connecting via USB entirely. Android Auto and Bluetooth continued working fine on the same phone
NHTSA complaint: Electrical system
My local Subaru dealership / service provider has told me my car needs a new transmission at 66k miles, due to an issue within the CVT solenoid causing slipping and lag that will eventually lead to catastrophic failure o
NHTSA complaint: Power train
My 2021 Subaru Ascent (40,000 miles) suffered multiple major mechanical failures that pose ongoing safety concerns: 1. Engine Oil Leak: The vehicle developed an active engine oil leak at 20,000 miles, posing a risk of fl
NHTSA complaint: Power train
The contact owns a 2021 Subaru Ascent. The contact stated that while driving at an undisclosed speed, the vehicle started to stall, and the transmission failed to properly operate. The vehicle was pulled over to a nearby
NHTSA complaint: Power train
Oil leaking from upper and lower oil pan. Oil seeping from head gasket and CVT chain pump cover. RTV sealant failure. $4800 to repair. Subaru needs to solve these oil leak issues. Leaking oil is bad for the environment a
NHTSA complaint: Engine
On May 14, 2026, while driving a 2021 Subaru Ascent (approx. 94,291 miles) on a Texas expressway at highway speed during rush hour, I experienced a sudden and significant loss of engine power. There were no warning light
NHTSA complaint: Service brakes
I am submitting this complaint regarding a 2021 Subaru Ascent that I purchased new from Herb Gordon Subaru in Maryland. The incident occurred while driving on I-95 at approximately 75 mph with my family, including childr
NHTSA complaint: Power train
I had catastrophic transmission failure. The car was completely inoperable. Thankfully this only happened in a parking lot. If this were yo happen while merging into traffic it could have been very dangerous. This was th
NHTSA complaint: Power train
NHTSA lists 2 recall campaigns for the 2021 Subaru Ascent. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
Subaru of America, Inc. (Subaru) is recalling certain 2019-2022 Ascent vehicles. The ground bolt that secures the ground terminal of the Positive Temperature Coefficient (PTC) heater may have been improperly fastened, which could result in melting of the ground terminal and surrounding components.
Risk: A melting ground terminal increases the risk of a fire.
Fix: Owners are advised to park their vehicle away from structures and to avoid leaving the vehicle unattended while the engine is running. An owner who notices or smells smoke coming from the dash or dri
Subaru of America, Inc. (Subaru) is recalling certain 2026 Crosstrek Hybrid, 2025-2026 Forester Hybrid, Forester, and 2019-2026 Ascent vehicles. These vehicles were manufactured with an incorrect Gross Axle Weight Rating (GAWR) on the certification label. As such, these vehicles fail to comply with
Risk: An incorrect GAWR label may lead to an overloaded vehicle, increasing the risk of a crash.
Fix: Subaru will mail a new certification label to owners, free of charge. Owners may also choose to have a dealer install the new label, free of charge. Letters informing owners of the safety risk were ma
| Reliability raw | 91 | excellent |
|---|---|---|
| Longevity est. | 82 | excellent |
| Maintenance | 70 | good |
| Depreciation | 64 | average |
| Performance | 67 | good |
| Efficiency | 42 | below average |
| Safety | 93 | excellent |
Percentile ranks against other SUVs in the catalog.
What stands behind each score for this car:
Owners have filed 102 complaints with NHTSA for this model-year, and power train is the most reported area with 16 of them (16%). There are 2 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 91/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 82/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2021 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 75/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.