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2020 Subaru Ascent problems: engine and transmission complaints and recalls

NO ELEVATED SIGNAL
28%
89 of 322 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2020 Subaru Ascent. Engine, transmission and fuel system account for 28% of relevant complaints.

Better than 73% of the 1,789 model years we track (2010–2023).

NHTSA data checked October 3, 2026
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Does the 2020 Subaru Ascent have engine or transmission problems?

Not as a pattern, going by owner complaints. 89 of 322 relevant complaints filed with NHTSA about the 2020 Subaru Ascent concern the engine, transmission or fuel system (28%). For comparison, the 2019 scores 31% and the 2021 scores 29%. 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
89
engine, transmission, fuel
Total complaints
322
this model year
Fires reported
1
owner-reported
Recall campaigns
5
6 crashes · 5 injuries

Complaints by component

ELECTRICAL SYSTEM101 · 31%
POWER TRAIN58 · 18%
UNKNOWN OR OTHER56 · 17%
VISIBILITY/WIPER49 · 15%
ENGINE29 · 9%
SERVICE BRAKES26 · 8%

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 TRAIN08/27/2026
The contact owns a 2020 Subaru Ascent. The contact stated that while driving at an undisclosed speed, the vehicle was skipping. The failure was recurrent. The contact associated the failure with NHTSA Campaign Number: 21V955000 (Power Train); however, the dealer informed the contact that the recall repair was completed…
POWER TRAIN08/20/2026
1. The vehicle is experiencing a transmission malfunction/failure. The dealership was able to replicate the issue and confirm the malfunction, which caused the check engine light to illuminate. The vehicle is currently being evaluated by the dealership, and any failed components should be available for inspection upon …
POWER TRAIN07/29/2026
The Transmission is slipping on my 2020 Ascent. I had the recall wrk-21 performed in July of 2025. Over the last 6 months the car has been hesitant to go at low speeds and shakes at high speeds. Over the last month the transmission started to slip while accelerating , especially up hill. There would be a grinding noi…

Three of 89 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2020 Subaru Ascent (5)

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2020 Legacy and Outback vehicles. A programming error in the Transmission Control Unit (TCU) may …
STEERING:LINKAGES:TIE ROD ASSEMBLY
Subaru of America, Inc. (Subaru) is recalling certain 2020 Ascent vehicles. Due to an incorrect tapered hole in the housing, the front tie rod ends may not fit properly.…
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. Th…

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

Before you buy a 2020 Subaru Ascent

Questions people ask about the 2020 Subaru Ascent

Does the 2020 Subaru Ascent have engine or transmission problems?

Not as a pattern, going by owner complaints. 89 of 322 relevant complaints filed with NHTSA about the 2020 Subaru Ascent concern the engine, transmission or fuel system (28%). It describes the model year, not any one car, so an inspection still matters.

Are there engine or transmission recalls on the 2020 Subaru Ascent?

NHTSA lists 5 recall campaigns on the 2020 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%) has a lower engine and transmission complaint share than the 2020 (28%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2020 Subaru Ascent?

That depends on the car in front of you, not just the model year. The 2020 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.