2018 Subaru Outback engine problems

Updated from NHTSA data · How we count

24 owners have reported engine problems with the 2018 Subaru Outback, 4% of all complaints about this model year. The typical problem appeared around 8,000 mi.

Engine complaints
24
Crashes
1
Fires
0
Injuries
0
Related recalls
0
Median mileage
8,000 mi

Specific components reported

Engine covers: stalling, loss of power, oil consumption, overheating.

ComponentComplaints
Engine24

Engine complaints across Subaru Outback years

1200521200736200993620112525201392920154631201724382019502320212412023762025
Engine complaints by model year. The 2018 is highlighted.

Mileage when the problem appeared

2Under 10k110k–30k30k–60k60k–100k100k–150k150k+
Complaints that list mileage, grouped by odometer reading.

Related recalls

No recalls on file.

What owners say

  1. Filed Sep 11, 2026NJEngine
    The car started to make very loud engine noises and then the engine completely failed. The car was no longer able to accelerate and lost the ability to go in both forward and reverse. Luckily, my son had just arrived home when the car completely lost power, but it began to have acceleration issues as he was driving home. No warning lights came on until after the car had completely failed. Less than a week prior to the incident, the car had an oil change and inspection by the…
    NHTSA complaint #11763630 · source
  2. Filed Jul 14, 2026PAEngine
    Engine cam carrier seals are leaking. Repair cost is $5,700 plus tax. Vehicle is well cared for and well maintained with only 96,000 miles The Subaru Manufacturer was contacted and will do nothing to fix and does not admit engineer defect nor manufacturing defect. Basically, 96,000 and needs a new engine. Please put out a national recall.
    NHTSA complaint #11750422 · source
  3. Filed Jun 15, 2026MAEngine
    Acceleration was very sluggish and un-responsive Gears would strangely slip on the highway resulting in engine racing up Rotating sound would come and go
    NHTSA complaint #11744113 · source
  4. Filed Jul 15, 2025NJDriver Assistance & Safety TechEngineOther / Unknown
    Arriving at my childhood home, I followed the driveway to the left to park in front of the garage door. With my foot on the brake and slowly rolling to a stop, the car suddenly accelerated and jolted forward making contact with the garage door and the frame of the garage. This caused damage to the house, garage door and the front of the car. Thankfully there was no other car in the way or a pedestrian! Only the house and car were damaged. This was sudden and there was no…
    NHTSA complaint #11673767 · source
  5. Filed Aug 31, 2024WAEngineFuel, Hybrid & EV PropulsionAcceleration & Cruise Control
    In heavy traffic, we were rolling slowly along, when all of a sudden the engine began revving on its own, against the brake. I quickly moved the shifter into neutral, and the engine revved wildly without my pressing on the accelerator. We couls have easily slammed into the car in front of us had I not moved the selector to neutral.
    NHTSA complaint #11611982 · source
  6. Filed Jun 5, 2024WAEngine
    The cam tower seal on modern Subaru Outbacks fail at an incredibly high rate and the repair cost is typically higher than $3000. Subaru's standard warranty covers the repair up until 60,000 miles but a quick search on user forum's shows that this issues consistently pops up somewhere between 60 and 90 thousand miles.
    NHTSA complaint #11592669 · source
  7. Filed Feb 6, 2024OREngine
    Flex joint connecting to catalytic convertor. For 3+ years, exhaust from engine coming directly into cab, coughing, nausea, burning eyes/nose/lungs/chest. Foul odor, difficulty breathing. The problem has been reproduced and diagnosed by two independent mechanics. The dealer, when initially requested to inspect expeditiously, couldn't get me out the door fast enough. The component has only been inspected by two independent mechanics. There were no warnings. I would like to…
    NHTSA complaint #11570383 · source
  8. Filed Sep 30, 2023OKElectrical SystemEngineFuel, Hybrid & EV Propulsion
    On 9/28/23 I was driving in a 2-lane construction zone with my daughter. While going through the construction zone, my car lost all power and just shut off completely. No warning signs just went completely dead. I almost got rear ended, thankfully the car behind me went to the left of the center, but almost had a head on collision into oncoming traffic. Thankfully, no wrecks were involved. It did eventually start back up and has yet to happen again. However, back in…
    NHTSA complaint #11547483 · source
  9. Filed Aug 28, 2023ILEngine
    Vehicle had valve replacement after finding an oil leak in January 2023 at around 135,000 mi. August 2023, around 159,000 mi, mechanic found that valve needed to be replaced again as vehicle was leaking oil. System warning message came on to indicate low oil and upon checking, mechanic found that there was no oil on the dipstick. No dashboard light came on to indicate low/no oil at any point.
    NHTSA complaint #11541271 · source
  10. Filed Jun 12, 2023FLBrakesEngine
    I was driving at 40 MPH in the left lane approaching the left hand turn lane. Once I tturned into the turn lane my car started to accelerate very hard. I hit the brake and the car kept acelerating, I pushed the gear shift into neutral and with both feet hard on the brake I was able to stop completely without cutting into oncoming traffic. I have been driving over 50 years and never had an incident like this happen. I do not drive carelessly. However, now I am affraid to…
    NHTSA complaint #11526716 · source
  11. Filed Dec 14, 2022MAEngine
    Vehicle was parked with engine idling (waiting for passengers), engine accelerated to very high revs without any operator action. Driver shutdown engine. Driver checked to be sure nothing could have hit the accelerator, nothing found. Restarted the vehicle, could not reproduce the problem. About 2 miles down the road a RED exclamation symbol appeared on dash panel and shut off after 5 to 10 seconds.
    NHTSA complaint #11497372 · source
  12. Filed Sep 27, 2022TXElectrical SystemEngineOther / Unknown
    The battery has drained twice in the time that I have owned this vehicle. Once I was able to recharge the battery by jumpstarting and letting it run. The second time it required a battery replacement. This was approximately 12 months after the first incident. The electrical system also has unpredictable quirks related to the window functions and lighting. I am uncertain to other resulting irregularities that may be occurring under the hood. Currently, my car is being…
    NHTSA complaint #11486622 · source

Other 2018 Subaru Outback problem areas

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology