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2021 Subaru Outback: engine and transmission complaints

NO ELEVATED SIGNAL
13%
36 of 296 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 Outback. Engine, transmission and fuel system account for 13% of relevant complaints.

Better than 95% of the 1,230 model years we track (2010–2023).

NHTSA data checked September 13, 2026
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Drivetrain complaints
36
engine, transmission, fuel
Total complaints
296
this model year
Fires reported
1
owner-reported
Recall campaigns
4
9 crashes · 4 injuries

Complaints by component

VISIBILITY/WIPER97 · 33%
ELECTRICAL SYSTEM75 · 25%
UNKNOWN OR OTHER65 · 22%
FORWARD COLLISION AVOIDANCE29 · 10%
ENGINE21 · 7%
VEHICLE SPEED CONTROL19 · 6%

The years either side

2010
52%
148 of 360
2011
62%
288 of 651
2012
62%
146 of 292
2013
49%
121 of 296
2014
41%
67 of 208
2015
18%
89 of 509
2016
16%
99 of 642
2017
11%
97 of 917
2018
10%
81 of 809
2019
7%
72 of 1,033
2020
11%
97 of 896
2021
13%
36 of 296
2022
9%
39 of 462
2023
9%
7 of 89

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 TRAIN,ENGINE08/20/2026
Good Day! I bought my 2021 Subaru Outback XT Onyx in Jan 2021. I had waiting 6 yrs for Subaru to use the Turbo Motor in the Outback again. I've had this car for 5 years with my warranty running out Jan 2026, but I only drive 5000-7000 miles per/yr. Current odometer is 29,901 miles. At my most recent oil change service …
POWER TRAIN,ENGINE05/07/2026
Thermo Control Valve Failure- Contact Subaru of Cherry Hill, NJ for Inspection 177,4XX Miles P26A5 code Check engine Light on, Disabled Safety Systems (Eyesight System), Car may have overheated if not pulled over and turned off. Part of warranty extension but did not qualify due to mileage.
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE03/26/2026
The failure involves the engine (powertrain), which was under warranty. The vehicle has experienced four catastrophic engine failures resulting in sudden loss of power, including at highway speeds (65–75 mph). The most recent failure also involved an oil-saturated catalytic converter. These failures occurred between 06…

Three of 36 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (4)

POWER TRAIN:SHIFT LINKAGE/CABLE/ROD
Subaru of America, Inc. (Subaru) is recalling certain 2021 Outback and Impreza vehicles. The continuously variable transmission (CVT) select lever cable nut may not have…
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Subaru of America, Inc. (Subaru) is recalling certain 2020-2021 Outback and Legacy vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clu…
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to en…

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

Before you buy a 2021 Subaru Outback

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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.