2021 Subaru Outback driver assistance & safety tech problems

Related recalls

No recalls on file.

What owners say

1. Filed Jul 6, 2026NCCrashTowedDriver Assistance & Safety TechAcceleration & Cruise Control

   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…

   NHTSA complaint #11748480 · source
2. Filed Dec 3, 2025CACrashDriver Assistance & Safety TechOther / UnknownAcceleration & Cruise Control

   On 10/29/25 the car lost power once it got to 3500rpm. Multiple warning lights came on. On 11/06/2025, the Thermo Control Valve, high pressure fuel line, and gaskets for intake manifold and EGR were replaced. On 11/24/25, when backing up slowly in a small parking lot, the rear camera detection picked up a raised cement walkway with metal railing. The brake was applied by the driver, however the car accelerated quickly and slammed into the railing and cement. The vehicle was…

   NHTSA complaint #11702874 · source
3. Filed Jul 24, 202518,640 miSCTowedDriver Assistance & Safety TechEngine

   The contact owns a 2021 Subaru Outback. The contact stated that while driving approximately 55 MPH, the vehicle stalled. During the failure the "Eyesight" message was displayed, and the check engine warning light was illuminated. The vehicle was later towed to the local dealer who diagnosed that the thermal control valve had failed and needed to be replaced. The thermal control valve was replaced, and the vehicle was repaired. The manufacturer was notified of the failure…

   NHTSA complaint #11675847 · source
4. Filed Apr 2, 2025NMDriver Assistance & Safety TechElectrical SystemEngine

   Thermo Control Valve. Check engine light on. Eyesight Adaptive Cruise Control Automatic Emergency Braking Blind Spot Warning Forward Collision Warning Lane Departure Warning Lane Keeping Assistance X mode Dealership would not honor repair even though there is recall it does not cover vin 63400 miles Vehicle inspected by manufacturer code P2682 Check engine light is on and eyesight warning

   NHTSA complaint #11652303 · source
5. Filed Dec 14, 2024ILDriver Assistance & Safety TechEngineAcceleration & Cruise Control

   The speed control (adaptive) doesn't work. The interior heater doesn't work. Several lights including the 'check engine' light come on the dash. The lane departure system doesn't work. (It appears the thermo control value subassembly may be at fault.) The car has approximately 25K miles on it.

   NHTSA complaint #11630726 · source
6. Filed Feb 20, 2024OKDriver Assistance & Safety TechEngine

   While doing a casual drive, engine made a noise after work at night. Woke up in the morning and check engine light as well as the EyeSight light was on. Checked everything and noticed the coolant was low; but upon filling it, did not resolve the issue. Took it to a Subaru service center and was told that it the Temp Valve had been stuck and that they had replace not only one for my year model the same day, but also a ‘20 and ‘19 in the past week. Have looked online and…

   NHTSA complaint #11573060 · source
7. Filed Dec 1, 2023NY1 injuredDriver Assistance & Safety TechElectrical SystemAcceleration & Cruise Control

   My vehicle is equipped with EYESIGHT. I was driving to my home after work at night and suddenly the infotainment system screen went blank; including Braking Assist, Adaptive Cruise control, Lane assist, Emergency Braking etc including Navigation, also the HVAC shut off and EYESIGHT that controls these as well, shut off. It was suffocating in the car due to no A/C and thusf I tried to pull over at a remote text-stop place and tried restarting the car but in vain. All screens…

   NHTSA complaint #11557970 · source
8. Filed Nov 22, 2023NVDriver Assistance & Safety TechEngineAcceleration & Cruise Control

   Received error code P2682, a faulty Thermo Control Valve. This happened on 11/17/2023. Car potentially could have quit running in traffic. Subaru has identified the issue with TSB 09-80-21R. They have changed the design of the valve due to the many failures. My car has 74,000 miles. My brother in law has the same vehicle with 57,000, and his car is in the shop today for the same issue. The service tech working on his vehicle stated that he does a couple of these repairs a…

   NHTSA complaint #11556403 · source
9. Filed Sep 27, 2023SCDriver Assistance & Safety TechElectrical System

   Eyesight driver assist went out rendering safety features inoperable. Touch screen also blanked out so unable to adjust a/c, navigation,radio etc. Car had been on long distance all hiway drive and at 7 hours systems failed. Weather was in the 60s, overcast and it was in the afternoon. Pulled into rest stop and turned engine off then restarted but still failed. Drove 2 more hours and next rest stop systems came back after letting car sit off for 10+ minutes.

   NHTSA complaint #11546909 · source
10. Filed Aug 15, 2023TNDriver Assistance & Safety TechOther / Unknown

    The windshield has spontaneously cracked on 4 separate occasions. Subaru denies this is a defect and claims all have been caused by rock chips. This is not true. The cracked windshield has caused the vehicle on numerous occasions to slam on its breaks while traveling at 55 mph or greater as it “senses” a collision. This has nearly caused 3 accidents so far.

    NHTSA complaint #11538618 · source
11. Filed Jun 23, 2023OHAirbagsDriver Assistance & Safety Tech

    Yet to be diagnosed but possibly the cockpit control computer. Dealer service department has not been able to diagnose. No components have been replaced yet except for a software update that did not correct the issue. Safety systems all report as not functioning, These include all "eyesight systems";the air bags, automatic emergency braking, lane departure and lane keeping. Additionally all center console functions are not functional, including HVAC and radio. The vehicle…

    NHTSA complaint #11528573 · source
12. Filed Apr 14, 2023ILCrashTowedDriver Assistance & Safety TechFuel, Hybrid & EV Propulsion

    Car experienced unintended acceleration and the pre-collision safety system failed to engage. Car accelerated into a building and the driver stopped car's attempt to continue forward progress by taking the car out of drive mode. The pre-collision system failed completely. The Electronic Control Units seemed to fail entirely. This happened while pulling into a parking space at a very low rate to speed (until the car "took off").

    NHTSA complaint #11517076 · source

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