55 of the
415 complaints about the 2021 Subaru Outback are about the
driver-assist systems — 13% of everything
reported for this model year.
Half of the failures with a mileage on record happened before
640 miles.
C
55
Complaints
5
Crashes
0
Fires
1
Injuries
Exactly what failed
Automatic Emergency Braking
1832.7%
Warnings
1323.6%
Adaptive Cruise Control
1221.8%
Warning
47.3%
Blind Spot Detection
23.6%
Warnings
23.6%
Rearview System Braking
23.6%
Assist
11.8%
Radar
11.8%
Driver Assist & Collision Avoidance across every Subaru Outback year
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.
NHTSA complaint #11748480 — an unverified report by a vehicle owner.
Asheville, NCCrash
BACK OVER PREVENTION: WARNINGS
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.
NHTSA complaint #11748480 — an unverified report by a vehicle owner.
Los Banos, CACrash
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
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 placed into drive after the collision and continued normally. The brake was on once the warning light beeped and prior to the collision. The foot was not removed from the brake pedal until it was in drive. It could not have been placed into drive without the brake pedal being pressed. I asked the dealership if they could pull data from the car at the time of the incident, and was told they weren't sure they would get any information. It has not been inspected by a dealership or insurance. There was no damage done to the cement and railing was already bent. Only the car sustained damage.
NHTSA complaint #11702874 — an unverified report by a vehicle owner.
at 18,640 milesTaylors, SC
LANE DEPARTURE: SENSING SYSTEM: RADAR
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 informed of the extended warranty coverage related to the failure. The failure mileage was 18,640.
NHTSA complaint #11675847 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
Rockford, IL
FORWARD COLLISION AVOIDANCE: ADAPTIVE 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 — an unverified report by a vehicle owner.
Tahlequah, OK
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
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 noticed others have been unfortunate around the same mile range 60k.
NHTSA complaint #11573060 — an unverified report by a vehicle owner.
Tahlequah, OK
FORWARD COLLISION AVOIDANCE: WARNINGS
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 noticed others have been unfortunate around the same mile range 60k.
NHTSA complaint #11573060 — an unverified report by a vehicle owner.
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 were dark, no warm air, I couldn’t see what direction I was driving to, as well as I solely relied on navigation. I brought this car for it’s safety features and warmth in this cold temperature in UPSTATE NY and this happened. I waited for 20 mins, charged my phone for only 4-5% with a fellow citizen who was waiting there as well and checked online just to see a lot of people reported the same issue with 2021 Subarus with EYESIGHT. And there is NO way one can fix it. I tried contacting the dealer but in vain. I am afraid that if this would happen again, I wouldn’t be in a situation to face this scary experience.
NHTSA complaint #11557970 — an unverified report by a vehicle owner.
Spring Creek, NV
FORWARD COLLISION AVOIDANCE: ADAPTIVE 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 week, and that Subaru knows this part will fail and should issue a recall
NHTSA complaint #11556403 — an unverified report by a vehicle owner.
Columbus, NE
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
while i am driving my cruise control will just stop working causing the auto braking feature to stop also
NHTSA complaint #11551807 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
Chapin, SC
LANE DEPARTURE: BLIND SPOT DETECTION
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 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
Lebanon, TN
FORWARD COLLISION AVOIDANCE: WARNINGS
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 — an unverified report by a vehicle owner.
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 has been to the dealer twice where the problem could not be reproduced. No other inspection has been performed. No warnings or other messages appear prior to the failure. The failure persists for approximately 10 minutes, after which normal operation resumes. I write this following the fourth occurrence of the failure.
NHTSA complaint #11528573 — an unverified report by a vehicle owner.
Broadview Heights, OH
FORWARD COLLISION AVOIDANCE: WARNINGS
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 has been to the dealer twice where the problem could not be reproduced. No other inspection has been performed. No warnings or other messages appear prior to the failure. The failure persists for approximately 10 minutes, after which normal operation resumes. I write this following the fourth occurrence of the failure.
NHTSA complaint #11528573 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
Lake Forest, ILCrash
FORWARD COLLISION AVOIDANCE: WARNINGS
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 — an unverified report by a vehicle owner.
at 14,000 milesBrookfield, CT
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The contact owns a 2021 Subaru Outback. The contact stated that while driving approximately 68 MPH with the cruise control activated, the vehicle suddenly lost motive power. No warning lights were illuminated. The contact stated that it was difficult while attempting to shift the gear lever out of drive(D). The contact stated that once she was able to shift the gear shifter, she shifted into park(P) to turn off the vehicle. The vehicle was restarted after multiple attempts. The contact then noticed that the parking brake had engaged independently. The vehicle was taken to a local dealer, where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 14,000. The contact stated while driving on Mass Pike the Adaptive Cruise control was engaged, in the middle lane and no problems the vehicle lost power. After five minutes and traffic moving, the vehicle was trying to reboot but the emergency brake was on without anyone applying it. And the contact had a difficult time putting the vehicle into to park to restart the engine.
NHTSA complaint #11505358 — an unverified report by a vehicle owner.
Marion, VA
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
I purchased the car new in January 2021. During the first several months there were no issues. After that, the "Infotainment" system which controls the sound, nav, hvac, etc. systems would suddenly go black and those functions would stop working. It would seem to reboot as a computer does when you restart it. That was distracting but mostly just annoying, lasting less than 30 seconds. I will call that a "soft reboot." That happened many times over the next few months. On two occasions, the screen would black out and not only those systems would cease to function, it would shut down cruise control and Eyesight. Call that a "hard reboot." This was very dangerous. In traffic at 70-75 mph when the cruise control suddenly stops working, the car decelerates immediately and quickly. There are no warning signs or messages; it just goes black and shuts down those systems. Cars following would quickly be within a dangerous proximity. Not a safety issue but a hard reboot also wipes clear some settings including the nav destinations. During that period I spoke with service managers at two Subaru dealerships who said that it was a common problem and Subaru had issued a "patch" that was supposed to fix it. I live approximately an hour from the nearest dealership and had some difficulty finding a time to take it in for the upload. Finally I took it in to Scenic Subaru in Mt. Airy, NC on September 9, 2022 to get the update, with around 22,500 miles into a 36,000 mile warranty. I left the dealership at approximately 4 p.m. headed for Winston Salem, NC, approximately an hour drive. Within 5 miles from the dealership it did a soft reboot. That happened two more times. I called the dealership to advise them but it was too late to return. Then, still within an hour from the dealership, it did a hard reboot, shutting down everything as I described above. It functioned properly until it did a soft reboot today, 220 miles after the update.
NHTSA complaint #11484762 — an unverified report by a vehicle owner.
Rural Hall, NC
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The Navigation system will randomly go blank and then restart while driving. This not only affects any navigation which is currently in progress, but also disables the Cruise Control, Eye Sight, Lane Departure and other Safety devices. This has occurred numerous times while driving on an interstate highway and is dangerous and life threatening.
NHTSA complaint #11467274 — an unverified report by a vehicle owner.
The Navigation system will randomly go blank and then restart while driving. This not only affects any navigation which is currently in progress, but also disables the Cruise Control, Eye Sight, Lane Departure and other Safety devices. This has occurred numerous times while driving on an interstate highway and is dangerous and life threatening.
NHTSA complaint #11467274 — an unverified report by a vehicle owner.
Reisterstown, MD
FORWARD COLLISION AVOIDANCE: WARNINGS
We bought this vehicle new and since we have had issues with the infotainment shutting down multiple times while driving. The infotainment screen along with all safety features associated with the electronic panel turn off. We have taken it to the dealership multiple times and keep getting told that they can't replicate the problem. We have recorded the issue and sent proof but Subaru manufacturing keeps delaying any inquiries in hopes to bypass lemon law.
NHTSA complaint #11462460 — an unverified report by a vehicle owner.
We bought this vehicle new and since we have had issues with the infotainment shutting down multiple times while driving. The infotainment screen along with all safety features associated with the electronic panel turn off. We have taken it to the dealership multiple times and keep getting told that they can't replicate the problem. We have recorded the issue and sent proof but Subaru manufacturing keeps delaying any inquiries in hopes to bypass lemon law.
NHTSA complaint #11462460 — an unverified report by a vehicle owner.
Reisterstown, MD
LANE DEPARTURE: ASSIST
We bought this vehicle new and since we have had issues with the infotainment shutting down multiple times while driving. The infotainment screen along with all safety features associated with the electronic panel turn off. We have taken it to the dealership multiple times and keep getting told that they can't replicate the problem. We have recorded the issue and sent proof but Subaru manufacturing keeps delaying any inquiries in hopes to bypass lemon law.
NHTSA complaint #11462460 — an unverified report by a vehicle owner.
Montclair, NJ
BACK OVER PREVENTION: WARNINGS
I have had this vehicle since @ 6/30/21, under 4,000 miles. Sometimes when I'm driving, the car will suddenly brake or lurch when I am not near another object or person. I drove down the highway once when this happened and it was very concerning. I have also been in the middle of an intersection when this occurred, as I was turning left. It has happened approximately 10 other times since I've had the vehicle. Today it happened and a truck was behind me; thankfully I did not get hit.I brought this into the dealereship twice and they claim there is nothing wrong with the car. There is definitely something wrong with the car; it's dangerous. My car is available for inspection upon request. I and others are at great risk for an accident. I remember flashing lights on a few occasions, not today. When I went online to check for recalls, I noticed many other Subaru owners having the same issues.
NHTSA complaint #11460739 — an unverified report by a vehicle owner.
*Eyesight system detects collision hazard and applies brakes when entering certain curves. *Unexpected braking in curve, particularly when roadway is wet poses a danger to driver and other motorists. *Not reproduced by dealer or service center, problem is captured on dashcam video. *Vehicle has been inspected by dealer *Eyesight system seems to "glitch" frequently, causing a variety of warning lamps on dashboard, full shutdown of infotainment system, and disabling all built in eyesight safety features.
NHTSA complaint #11458575 — an unverified report by a vehicle owner.
Hixson, TN
FORWARD COLLISION AVOIDANCE: WARNINGS
*Eyesight system detects collision hazard and applies brakes when entering certain curves. *Unexpected braking in curve, particularly when roadway is wet poses a danger to driver and other motorists. *Not reproduced by dealer or service center, problem is captured on dashcam video. *Vehicle has been inspected by dealer *Eyesight system seems to "glitch" frequently, causing a variety of warning lamps on dashboard, full shutdown of infotainment system, and disabling all built in eyesight safety features.
NHTSA complaint #11458575 — an unverified report by a vehicle owner.
Frederick, MD
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
THE MAIN COMPUTER SYSTEM THAT CONTROLS THE EYESIGHT SYSTEM, CRUISE CONTROL, LANE DEPARTURE, ALL HVAC CONTROLS, NAVIGATION, ETC. SHUTS DOWN (GOES BLACK), AND REBOOTS RANDOMLY. WHEN THIS OCCURS, ALL OF THE FUNCTIONS AND CONTROLS ASSOCIATED WITH THE COMPUTER SYSTEM ARE LOST. CRUISE CONTROL DROPS OUT AND THE BUILT IN SAFETY FEATURES ARE DISABLED. IT IS DISTRACTING TO THE DRIVER AND REQUIRES THE DRIVER'S ATTENTION TO RESET FEATURES THAT WERE LOST. IT IS A KNOWN PROBLEM BY SUBARU AND HAS NOT BEEN FIXED ON MY VEHICLE FOR OVER A YEAR NOW. THIS COMPLETE COMPUTER BLACKOUT EVENT OCCURS ALMOST EVERY TIME I DRIVE THE VEHICLE.
NHTSA complaint #11453768 — an unverified report by a vehicle owner.