Research · Small Sport Utility Vehicle 4WD

2021 Subaru OutbackRecalls, problems, MPG & safety

NHTSA lists 4 safety recalls and 299 owner complaints for the 2021 Subaru Outback. Most complaints involve visibility/wiper (98) and electrical system (76). The EPA rates it 26–29 mpg combined, and NHTSA gives it 5 stars overall.

Combined MPG
26–29mpg
EPA · 2 versions
NHTSA overall
5of 5 stars
NCAP crash tests
Safety recalls
4campaigns
Latest Mar 2024
Owner complaints
299
Top: visibility/wiper
Fuel cost / yr
$2,200est.
EPA estimate, best version
01 —Recalls

Safety recalls

4 NHTSA campaigns · applies to some vehicles, check your VIN

Air bags: front passenger

Free remedy

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.

Air bagsReported Mar 22, 2024NHTSA 24V227000

Power train: park

Free remedy

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.

Power trainReported Nov 9, 2023NHTSA 23V755000

Power train: control module (tcm

Free remedy

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.

Power trainReported Jul 8, 2022NHTSA 22V485000
Data from NHTSA Recalls API · synced Nov 3, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

299 complaints filed with NHTSA · Nov 2020 – Oct 2026
  1. Visibility/wiper98
  2. Electrical system76
  3. Forward collision avoidance29
  4. Engine21
  5. Vehicle speed control19
  6. Air bags16
  7. Power train12
  8. Fuel/propulsion system10
  9. Visibility10

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Outback model year we’ve synced.

View as table
Model yearNHTSA complaints
2005273
2006281
2007130
2008230
2009112
2010360
2011653
2012295
2013297
2014208
2015509
2016642
2017921
2018816
20191,036
2020905
2021299
2022465
202389
20242
202583
202621
Crashes reported
9
Fires reported
2
Injuries reported
4
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 3, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Visibility/wiper

98 reports1 crash
“I was driving when I heard a loud explosion sound. I first thought a rock or gunshot hit my car and pulled over to examine my car. I checked all around the car and didn't notice any damage on the side of my car but then I noticed that my sunroof was shattered. The glass was pushed outward which meant that it was not hit by an object. Luckily, my interior cover to my sunroof was closed at the time so I was not harmed.”
Owner complaint to NHTSAFiled Nov 26, 2024Visibility/wiperODI 11627571

Electrical system

76 reports2 crashes1 fire
“Vehicle's Auto Start-Stop system shut the engine off while stopped at a red light in [XXX], in rainy conditions in late XXX at approximately 29,000 miles. When the brake was released after the light turned green, the engine did not restart, leaving it stopped in the travel lane in live traffic. The driver had to use a portable jump starter to get it running again. This was not isolated — repeated failure-to-start incidents in prior weeks had already prompted carrying a portable jump starter in the vehicle. At the time we believed this was a failing 12V battery. The original battery was replaced XXX with a new aftermarket AGM battery. Despite that replacement, the vehicle has continued to have multiple complete battery drain if left parked for multiple days (but less than a week), indicating the restart failures were likely caused by an underlying parasitic electrical draw rather than a simple worn-out battery. Subaru's own Technical Service Bulletin 07-199-21R, "Measurement of Dark Current (Standby Current Draw)," describes this exact failure pattern (batteries/vehicles going dead over time due to standby current traced to the VDC module and/or Power Rear Gate…”
Owner complaint to NHTSAFiled Aug 26, 2026Electrical systemODI 11759871

Forward collision avoidance

29 reports2 crashes
“I was already parked in a spot in a public parking lot. I tapped the accelerator pedal to move the car a few inches. The vehicle responded by violently accelerating, hitting a vehicle directly in front of me in another parking space. I applied my brake but the car would not stop. The force of the acceleration pushed the car out of the it's spot and it hit a curb and tree appox 30 ft away. In defensive move I turned my wheels to the right and continue to try and brake. This caused my car to hit the car on the right side of me. Property Damage occured. No injuries. Vehicle defect.”
Owner complaint to NHTSAFiled Jul 6, 2026Vehicle speed control, Back over prevention, Forward collision avoidanceCrash reportedODI 11748480
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Small Sport Utility Vehicle 4WD
Engines
2.5L 4-cyl · 2.4L 4-cyl turbo
Transmissions
Automatic (AV-S8)
Drive
All-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 3, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Outback AWD
Auto (AV-S8), 4 cyl, 2.5 L · All-Wheel Drive
263329$2,200308
Outback AWD
Auto (AV-S8), 4 cyl, 2.4 L, Turbo · All-Wheel Drive
233026$2,450343
  • Outback AWD
    Auto (AV-S8), 4 cyl, 2.5 L
    26 city · 33 hwy · $2,200/yr
    29
    mpg comb.
  • Outback AWD
    Auto (AV-S8), 4 cyl, 2.4 L, Turbo
    23 city · 30 hwy · $2,450/yr
    26
    mpg comb.
Data from EPA fueleconomy.gov · synced Nov 3, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

1 tested variant
Overall rating
5/ 5
5 of 5
Subaru Outback SUV AWD
Frontal crash
5 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
18.5%
Data from NHTSA NCAP Safety Ratings API · synced Nov 3, 2026Vehicle 15629
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2021 Outback questions

How many recalls does the 2021 Subaru Outback have?

4 safety recalls as of Nov 3, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2021 Subaru Outback problems?

Owners filed 299 complaints with NHTSA. The most-cited components are visibility/wiper (98), electrical system (76), forward collision avoidance (29). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 Subaru Outback get?

The EPA rates the 2021 Subaru Outback at 26–29 mpg combined, depending on engine and drivetrain (2 versions rated).

How safe is the 2021 Subaru Outback?

NHTSA's New Car Assessment Program gives the 2021 Subaru Outback 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Nov 3, 2026