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2021 Subaru Ascent problems: engine and transmission complaints and recalls

NO ELEVATED SIGNAL
29%
29 of 102 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2021 Subaru Ascent. Engine, transmission and fuel system account for 29% of relevant complaints.

Better than 72% of the 1,789 model years we track (2010–2023).

NHTSA data checked October 3, 2026
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Does the 2021 Subaru Ascent have engine or transmission problems?

Not as a pattern, going by owner complaints. 29 of 102 relevant complaints filed with NHTSA about the 2021 Subaru Ascent concern the engine, transmission or fuel system (29%). For comparison, the 2020 scores 28% and the 2022 scores 42%. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
29
engine, transmission, fuel
Total complaints
102
this model year
Fires reported
1
owner-reported
Recall campaigns
2
3 crashes · 3 injuries

Complaints by component

POWER TRAIN19 · 19%
ELECTRICAL SYSTEM18 · 18%
UNKNOWN OR OTHER16 · 16%
LANE DEPARTURE15 · 15%
VISIBILITY/WIPER14 · 14%
ENGINE12 · 12%

The years either side

2010
no data
2011
no data
2012
no data
2013
no data
2014
no data
2015
no data
2016
no data
2017
no data
2018
no data
2019
31%
131 of 441
2020
28%
89 of 322
2021
29%
29 of 102
2022
42%
22 of 55
2023
17%
7 of 45

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

What owners reported

POWER TRAIN08/28/2026
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 of the transmission - per the Subaru of America service tree. This issue began on July 23, 2026, when…
POWER TRAIN,ENGINE07/29/2026
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 fluid contacting hot exhaust/engine components under the hood or causing low oil levels during operati…
POWER TRAIN07/24/2026
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 shop and was advised to take the vehicle back to the facility that performed the oil changes. Sever…

Three of 29 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2021 Subaru Ascent (2)

ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH
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…
EQUIPMENT:OTHER:LABELS
Subaru of America, Inc. (Subaru) is recalling certain 2026 Crosstrek Hybrid, 2025-2026 Forester Hybrid, Forester, and 2019-2026 Ascent vehicles. These vehicles were manuf…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Subaru Ascent

Questions people ask about the 2021 Subaru Ascent

Does the 2021 Subaru Ascent have engine or transmission problems?

Not as a pattern, going by owner complaints. 29 of 102 relevant complaints filed with NHTSA about the 2021 Subaru Ascent concern the engine, transmission or fuel system (29%). It describes the model year, not any one car, so an inspection still matters.

Are there engine or transmission recalls on the 2021 Subaru Ascent?

NHTSA lists 2 recall campaigns on the 2021 Subaru Ascent. Whether a specific car still has one open depends on its VIN.

Which Subaru Ascent years are better?

Among the Subaru Ascent years we track, the 2023 (17%) and the 2020 (28%) have a lower engine and transmission complaint share than the 2021 (29%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2021 Subaru Ascent?

That depends on the car in front of you, not just the model year. The 2021 Subaru Ascent shows no elevated engine or transmission pattern in owner complaints, which is a good starting point. It is still one car with its own history, so get an independent pre-purchase inspection and a vehicle history report before you commit.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.