Used Car Checklists

2021 Subaru Outback: What to check before buying

Owners have filed 283 complaints with NHTSA about this car, most about the wipers and visibility, electrical, and airbags. The 9 checks below target those problems, in the order you would do them at the car.

Subaru Outback2021
Owner complaints
283
Recalls
4
Crashes reported
6
1 injury
Reliability
Good
69/100 on Auto Reliability Index

Run the VIN before you go

A history report shows accidents, title brands, odometer readings, and open recalls for this 2021 Subaru Outback. Ask the seller for the VIN; it is also on the dash at the base of the windshield.

Your inspection sheet

Tick items off on your phone at the car, or print it. Ticks stay on this device.

These checks are specific to this model year. For tires, body panels, fluids, and the other basics every used car needs, use the general inspection guide.

Which Outback is it?

EPA figures for each version of the 2021 Subaru Outback. Use them to confirm you are looking at the version that was advertised, and as a yardstick on the test drive.

VersionDriveEPA rating
2.4L 4-cylAWD26 mpg
2.5L 4-cylAWD29 mpg
  • The 2021 Subaru Outback was sold in two versions. Confirm which one this is from the window sticker, the engine cover, or the VIN report before you compare prices.
  • Reset the trip computer at the start of the drive. A Outback that averages well under the EPA 26 mpg combined on a mixed route may have an engine or tire problem.

Check the odometer against these mileages

Owners report these failures starting around the mileages below. A car inside one of these ranges deserves a closer look at that part, or records showing it was already fixed.

  • Windshield cracks without impact

    150–6,400 miles

  • Battery drains while parked

    700–9,000 miles

  • Thermo control valve failure

    56,000–74,000 miles

0 mi25k50k75k100k

Why these checks: what owners reported

NHTSA complaints for the 2021 Subaru Outback, grouped by the part owners named. Open a row to read what goes wrong.

  • Wipers and visibility99No crashes

    Windshields crack with no impact or from a tiny chip, often with an audible pop, while parked, idling or driving. Cracks usually start near the bottom edge and spread a foot or more within minutes or overnight, and heat makes them grow. Most reports come in under 6,000 miles. Repeat failures are common, with some owners on a third windshield. A crack in front of the EyeSight camera can disable the safety features. Dealers often blame rock chips and refuse warranty coverage.

    Windshields crack without impact or after a minor strike, then spread quickly. One reached about 3 feet overnight. Reported mileages run from 150 to about 23,000, and several are under 3,000. Owners often go through more than one windshield, and some report three. Dealers usually blame a rock or an unknown object and sometimes deny warranty claims. One dealer pointed to thin factory glass. Owners say the cracks block their view while driving. One owner linked the problem to recall 22V712000, but that VIN was not included.

  • Electrical702 crashes

    Batteries go dead after the car sits a few days, often in the first few thousand miles, so owners need jump starts or tows. The infotainment screen also blacks out and reboots while driving. When it does, EyeSight, adaptive cruise, the backup camera and climate control can drop out, and dealers often cannot reproduce the fault. At higher mileage, a failed thermo control valve sets code P2682, and in one case the engine lost power at highway speed. Two crash reports describe sudden acceleration in parking lots. One parked car caught fire and was a total loss.

  • Airbags15No crashes

    Most complaints concern recall 24V227000. Dealers say the repair part is not yet available, and owners call the wait unreasonable. Most of these owners have had no failure, though some have the air bag warning light on, one at about 29,000 miles. Separately, the front passenger sensor sometimes misses adults of roughly 95 to 100 pounds and switches the passenger air bag off. One owner has a B1784 sensor code, but the recall does not cover that car's VIN.

  • Transmission81 crash

    The car lurches, jerks or shifts unexpectedly in several reports. In one crash report, the idling car lurched forward twice at a red light and hit the vehicle ahead. Others say the engine restart after an auto start-stop shutoff jolts the car and pulls the steering wheel, or that the transmission drops to 1st or 2nd while in Drive. Individual reports cover a $1800 thermo control valve repair, wheel bearings failing at 55k miles and a car found idling all night. One owner is waiting for parts for recall 23V755000.

  • Acceleration and cruise control71 crash

    A failed thermo control valve sets code P2682 and turns on the check engine light. It can also disable adaptive cruise, lane departure warning and the heater, and in one case the engine lost power at 3500 rpm. Reported mileages include 25K, 57,000 and 74,000. Owners cite TSB 09-80-21R and a redesigned valve. Separate reports describe the car accelerating with the brake pressed at low speed, hitting a curb in one case and a railing in a crash. Cruise control also cuts out when the navigation screen reboots.

  • Automatic emergency braking7No crashes

    Automatic emergency braking engages with no real threat, which raises the risk of being rear-ended. Owners report it in curves, on wet roads, for cars in an adjacent lane and once at 60 mph. Infotainment crashes also knock EyeSight and cruise control offline at highway speed, so the car slows before the driver notices. Dealers often cannot duplicate the problem, and one recommended recalibrating the camera. One report describes a sudden loss of power at 68 mph, followed by the parking brake engaging on its own.

  • Body and structure6No crashes

    The glass sunroof shatters with a loud bang while driving, with no sign that anything hit it. One owner swerved into the next lane in shock. One case happened at 24,100 miles. In heavy rain, water leaks into the driver's side wheel well, and repeated dealer visits to replace seals have not fixed it. Other reports cover windshields cracking without impact and the key fob opening the trunk from a pocket while the car is parked and locked.

  • Fuel system31 crash

    The car accelerates on its own at parking-lot speed while the driver is braking. In a crash report, the car drove into a building and pre-collision braking did not engage. Another car jumped a curb. On an XT, the engine stopped responding to the gas pedal at 65 mph and slowed below 30 in heavy freeway traffic, then recovered and failed again minutes later. The dealer could not duplicate the problem.

In owners' own words

Excerpts from complaints Outback owners filed with NHTSA, as written. Listen for the same symptoms on your test drive.

Wipers and visibility
Car was parked outside. We returned to vehicle and noticed that front windshield had large crack beginning in bottom right and was 2-3 feet in length. The crack grew overnight. This was in a place of business and we do not suspect vandalism. It was a hot day (over 90-degrees with humidity). The air conditioner had been running inside the vehicle. Vehicle has less than 6,000 miles.

Filed with NHTSA, July 2021

Wipers and visibility
After less than 3,000 miles and 6 months, the windshield spontaneously cracked from about 1/3 the way up the driver-side post horizontally about 12” toward the center of the car, then up vertically about 10” and then horizontally about 24” further toward the center of the car. This was reported to Subaru of America with Case # 1-73126830225 on 2021-08-18.

Filed with NHTSA, August 2021

Electrical
Drove car and parked for 15 minutes. When I tried to start it again it would not turn over. Battery was completely dead and could not be jump started. Car is a 2021 model with only 11K miles on it. There was no prior warning of a low battery. It left me stuck in an isolated parking lot. Probably not a major safety issue but apparently a known issue for late model Subaru Outback’s so I wanted to add the 2021 model to the affected list.

Filed with NHTSA, August 2021

Electrical
We bought this car new about 3 weeks ago and tried to drive it this morning to find it completely dead. It was last driven about 60 hours ago. It has just over 1,000 miles on it. There was no warning lamp that came on when we last drove the car. I was able to jump the car and have it on a trickle charger now but this is completely unacceptable for a brand new vehicle. I've reached out to the dealer but have not heard back.

Filed with NHTSA, July 2021

Transmission
Purchased used with just over 60k miles & have had less than a year. Vehicle still under 80k miles. Told transmission needs replaced but found service records from previous owner which shows fuel pump replaced twice at about 20k mile intervals & I am just under 20k miles past previous pump replacement. Vehicle does not run at the moment & warranty company refusing to help.

Filed with NHTSA, April 2025

Transmission
I was driving and suddenly 13 flashing lights and codes from check engine to loss of cruise control and RAB -dealer says it needs a new thermo control valve (thermostat). This failed part has been common on Subarus for 3 years-reported on internet and even to the point where a guy sitting next to me today with same car and year and same $1800 bill and diagnosis. Should be a recall. Part was redesigned in 2022 I read.

Filed with NHTSA, September 2023

How the 2021 compares with other Outback years

Complaints for this year next to the average for the other model years, area by area.

The 2021 ranks fifth for owner complaints among 8 Outback years, well under the average of the others. Newer years have had less time to collect complaints, so compare like with like.

2021 Average of other years
  • Wipers and visibility99179
  • Electrical70131
  • Airbags157
  • Transmission810
  • Acceleration and cruise control77
  • Automatic emergency braking73

Where the 2021 fits in the Outback's history

Redesigns and mid-cycle updates change what can go wrong.

The 2021 is the second model year of the Outback's sixth generation (2020–2025).

Subaru updated the Outback for 2023, so a 2021 does not have those changes.

What changed for 2023 (not on a 2021)

  • New front fascia
  • New headlights
  • Updated infotainment system

Recalls to confirm (4)

Recall repairs are free at any Subaru dealer, but the seller may never have had them done. Check each campaign number against the VIN.

  1. 24V227000AirbagsMar 2024

    Subaru of America, Inc. (Subaru) is recalling certain 2020-2022 Outback and Legacy vehicles. A capacitor in the sensors for the Occupant Detection System (ODS) may crack and short circuit, which can prevent the front passenger air bag from deploying in a crash.

    Risk: An air bag that does not deploy during a crash can increase the risk of injury.

    Fix: Dealers will replace the ODS sensors on the front passenger seat, free of charge. Owner notifications were mailed February 3, 2025. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRA-24.

  2. 23V755000TransmissionNov 2023

    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 enter the inhibitor switch, causing it to fail.

    Risk: An inoperative inhibitor switch may prevent the reverse lights from illuminating and the rearview camera image from displaying, increasing the risk of a crash.

    Fix: Dealers will replace the inhibitor switch, free of charge. Owner notification letters were mailed January 8, 2024. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WRQ-23.

  3. 22V485000TransmissionJul 2022

    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 clutch to engage before the drive chain is completely clamped.

    Risk: An improperly secured drive chain may slip and break, causing a loss of drive power and increasing the risk of a crash.

    Fix: Dealers will reprogram the TCU, inspect TCU data for chain slip, and visually inspect the chain guide. If evidence of chain slippage or damage is found, the transmission will be replaced. Repairs will be performed free of charge. Owner notification letters are expected to be mailed August 24, 2022. Owners may contact Subaru's customer service at 1-844-373-6614. Subaru's number for this recall is WRK-22. This recall is an expansion of previous recall number 21V-955.

  4. 21V024000TransmissionJan 2021

    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 been tightened properly, allowing the nut to loosen.

    Risk: A loose nut can lead to a lost of retention in the CVT select lever cable and the gear selector not functioning properly, increasing risk of crash.

    Fix: Subaru will notify owners, and dealers will inspect, and, if necessary, tighten the nut, free of charge. The recall began February 12, 2021. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRA-21.

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