2021 Subaru Outback Complaint Log

The failure involves the engine (powertrain), which was under warranty. The vehicle has experienced four catastrophic engine failures resulting in sudden loss of power, including at highway speeds (65–75 mph). The most recent failure also involved an oil-saturated catalytic converter. These failures occurred between 06/25/2024 and 03/16/2026. During this ~629-day period, the vehicle was only in my possession for about 184 days, as it remained at the dealership for diagnosis, repairs, and repeated engine replacements. The issue remains unresolved. The vehicle is currently in my possession, available for inspection, and is not being driven due to safety concerns. All failures occurred during normal driving and caused sudden loss of power with no prior warning, leaving the vehicle inoperable and stranded. This created a significant safety risk due to inability to maintain speed or safely merge, increasing the likelihood of rear-end collisions. The failures have been confirmed by an authorized Subaru dealership, with multiple engine replacements performed under warranty and most recently as a goodwill repair. Both the dealership and Subaru of America have acknowledged they cannot determine the root cause. The dealership’s Operations Director stated the vehicle is not safe and he would not allow his family to drive it. The vehicle has been inspected multiple times by the dealership and Subaru of America. However, no inspection reports, diagnostic data, or detailed findings have been provided despite repeated requests. Additional issues (including a broken axle and oil-saturated catalytic converter) were only identified during a third inspection after being missed previously. Requests for explanation were not answered, and further details were withheld as “internal.” There were no warning indicators prior to the first three failures. During the fourth, a temperature warning appeared only seconds before failure.

The airbag light came on in my car even though the cars airbags have never deployed. The code that the scanner is bringing up is B1784. The description for this error is Right front occupant detection sensor collision detection, Subaru has a safety recall for this exact issue for this exact year and type of car but are stating my vin does not have the recall. I have contacted them and they stated there is nothing they can do for me to fix this recall because my car's vin is not showing to have this recall.

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.

I was stopped at a stop sign and the car shut off as the auto on/off function. When I went to drive the car did not re-start as the battery needed replaced. I was left stranded in an intersection. The battery did need to be replaced. The auto start/stop feature is a saftey hazzard on any vehicle

Sunroof exploded driving home in 90 degree sunny and clear weather. It sounded like a gun went off right over my head. It scared me so bad I jerked my steering wheel into the other lane. Thank God no one was in that lane. I had to get it replaced at Mid State Glass company. according to what I found on the internet this happens rather frequently. No notification by Subaru that this was even a possibility. I have the receipt the replaced sunroof and photos of the sunroof after it exploded.

SUDDEN AACCELERATION: Cold started the car in garage, all OK. Then backed out and into turn around where I placed foot on the brake. At that moment suddenly accelerated and engine revved to 2000rpm (sounded like). I had to push down very hard on the brake pedal (where my foot already was) to stop the car before crashing into a tree. Foot was clearly on brake pedal at incident (that was the only way I could stop the car). It was not on or close to accelerator pedal and no floor mat or other objects was on or near the accelerator pedal. Very concerned about safe vehicle with this sudden acceleration. Appointment with Subaru dealer made for full diagnostic check. Dealer is White Bear Subaru, [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Subaru Outback. The contact stated that while idling at a red traffic light, the vehicle lurched forward twice and struck the rear end of another vehicle twice. Several unknown warning lights were illuminated upon impact. The air bags did not deploy. There was no injury sustained. A Police report was not filed. Both the contact and her husband were able to drive away from the scene. The contact's vehicle sustained damage. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and advised the contact that a field technician would be sent to retrieve information from the EDR. The failure mileage was approximately 30,800.

Wheel bearings failed at 55k miles , 5.25 years

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was unavailable. The dealer was contacted. The dealer confirmed that parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

While slowly backing out of a parking space, the vehicle suddenly accelerated on it's own - I do not recall pressing on the accelerator but the engine surged and the vehicle rapidly reversed and struck 4 other parked cars. It felt as if the accelerator became stuck and would not respond to braking. No warning light or dashboard alerts appeared. Subaru eyesight and adaptive cruise control were not engaged at the time. There was no known obstruction under the petals. This felt like a serious malfunction and could have caused serious injury. I am reporting this in case it is part of a wider issue affecting this model and because i see that there are multiple complaints to you about sudden unintended acceleration, especially during low speed maneuvers like backing out a parking space.

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.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The rear driver side window shattered while I was driving. There was no outside influence, and I was driving around 35-40 miles/hour. I am reporting this because Subaru had the same incident happen multiple times on another model of their vehicles. If there was anyone sitting in the back, they would have most likely been injured.

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

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.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2021 Subaru Outback. The contact stated while driving at an undisclosed speed, the air bag warning light illuminated. The contact stated that there was an audible chime while a passenger was seated in the front passenger’s seat. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was unavailable. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer informed the contact that the part was not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 17,800. VIN tool confirms parts not available.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

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.

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.

The contact owns a 2021 Subaru Outback. The contact stated while driving approximately 40 MPH, the check engine, ABS, and brake warning lights illuminated. The contact pulled over to the side of the road. The contact turned off the vehicle and waited for several minutes before restarting the vehicle; however, upon restart the transmission failed to shift into the desired gear. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the vehicle was not covered under warranty due to a third-party damage to the rear brake cable. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 24,000.

Thermo control valve failure. Would not cover it

Since owning this vehicle, we have replaced the windshield at least once a year. The first due to a 1/16th inch chip that evolved into a 10 inch crack over the course of a day. The second was a crack from driver side pillar that appeared overnight, no chips prior. Third was a 8" crack from passenger pillar that appeared overnight while garage parked, after a day, it grew to reach the center of the windshield. I think it's unacceptable that windshields can just crack overnight less than a year after install. It's beyond concerning knowing that our windshield could crack at anytime, or that superficial chips must be taken care of IMMEDIATELY or we run the risk of replacing the entire windshield.

Battery keeps draining if car isn't driven for a few days battery is drained to point of it being dead, cannot get into car, will not start, leaves you stranded. This is the fourth time this year, dealer checks it out tells me nothing is wrong. I have read many problems with parasitic battery drain with subaru's even that the alternator is programed not to fully charge the battery to save gas. getting tired of the issue to the point where I am thinking of selling the car and finding something that will not leave me stranded. This time when I checked the battery voltage it was 5.80 volts and .29 amps.

The auto restart does not work and requires a car restart to fix. The latest software update caused this is to happen.

ON thursday night at about [XXX] i was driving in the carpool lane going north.in the [XXX] , with full tank of gas ; suddenly i felt and here a noise, and the vehicle (2021outback base) start losing power, at the point that totally stop. call 911, and few minutes after the hway patrol came and push us out of the freeway, there was not any shoulder to be safe out. when the police officer try to turn it on the vehicle star but no power was available even when the vehicle was on.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The car flashed “eye sight off” before flickering and shutting off while I was braking at a stop light. I tried putting my car into park and then turning it off and restarting it but it would not turn back on. I tried this a few more times but I was in the middle lane of a heavily trafficked street. The steering wheel was locked and I was not able to immediately remove it from the road and maybe an hour later it was able to be shifted into neutral and moved out of the street. However, it would still not turn on and when I did open my power gate, the gate would not secure closed. I took it to the dealership that I purchased it at and where it is also regularly serviced (with the last service date only over one week ago,) and they were not able to determine what happened but instead mentioned that my car had no internal data of any errors occurring and that the car was able to be started when they serviced it. I took a picture of the dash as it was flashing with all of the error codes and submitted that to the tech that was working on my car, but they asked me if I’d had someone “clear my codes” which is not something I’m familiar with or even capable of doing- I don’t even know anyone that would be capable of doing that for me. The whole ordeal cost me a day of work and now my peace of mind as I am unsure of if this may happen again and now I am worried it may happen while my kids are in the car. I’ve had similar issues with my center console messing up but nothing as urgent as my whole car shutting down and my steering wheel locking in the middle of traffic.

Battery drains quickly and renders the car inoperable. Possibly due to Controller Area Network (CAN) not entering sleep mode when vehicle is not being used resulting in a parasitic battery drain.

Parasitic Draw on battery: Original battery was dead after sitting 5 days; Bought new AMG and it has also died after 4 days sitting.

Today while waiting at a stop light the auto start stop engaged. When the light went green I put my foot on the gas and the vehicle stalled. The car was on but not running, several alarms were on the dashboard. I had to put the car in park, turn it off and then restart the car. This is a repeated issue and has been going on at least once a month since we purchased the car in 2021. We've brought it to the dealer and they said there was nothing wrong because there was no OBD code. I have checked myself and I have not found any code. This is extremely unsafe

2021 Subaru Outback Limited | ~13000 miles | Component: Battery | Car suddenly stopped and ALL warning lights started flashing at a busy traffic signal, while I was waiting to take a left turn (lucky to have escaped safely from that situation). I had to turn the car off and restart it. 2 days later, the car would not start at all. Tried jumping it multiple time in vain. Had to tow the car to the nearest Subaru service center. Technician ran a diagnostic and concluded that the battery was not holding any charge at all and it was deemed faulty. Reading many posts on reddit and other forums of many Subaru owners facing the same issue from older (2015) to newer models. Many of them also complained of Parasitic drain on the battery due to faulty DCM on Starlink. Note: there was no warning lights/messages or any other symptom before this. This was a Subaru certified pre-owned car that went through a 152 point inspection in 2023.

Driving home on a farm road, a truck passed by, picking up a pebble that hit my windshield. On my other vehicles, that same impact would leave a chip on the windshield but due to its light thickness, it immediately formed a long crack that is continually growing in size as it is currently my daily commuter to work. That was a huge bummer given I had purchased it recently and it didn't have any blemishes on the windshield. The pebble hit the upper driver side part which led the crack to form out toward the roof and is going diagonal to the passenger side below the visor.

Front windshield on my 2021 outback has numerous large cracks for no reason. This is a known issue via Google and class action law suits for windshields. This is a safety issue and needs to be addressed. I emailed Subaru and filed a complaint with them, Case#240708-220236. Asking them to replace windshield with new one that won't crack like this one. i have photos if needed.

The contact owns a 2021 Subaru Outback. The contact stated while attempting to start the vehicle, the vehicle failed to start. There was no warning light illuminated. The contact was able to jumpstart the vehicle. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with battery failure. The contact was informed that the battery needed to be replaced. The battery was replaced; however, the failure persisted. The dealer was contacted, but the vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 57,000.

Windshield cracked under heat from parking in sun. The windshield spontaneously cracked when wiper fluid was turned on after parking on hot (85F) day. The whole windshield spidered indicating it is under extreme stress.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags) however, the part to do the recall repair was not yet available. The air bag warning light was illuminated. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 29,000. VIN tool confirms parts not available.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

On[XXX] while accelerating to travel speed (45 mph) on a rural Maine highway, the little used glass moon roof of our 2021 Subaru Outback Touring with 24,100 miles on the odometer exploded with a huge, shocking BANG!. Weather was clear and bright, wind ~5 mph, temperature about 68ºF, no traffic. We never saw or heard anything strike the car, either from the road or falling down from the trees at or prior to this incident. We had the interior shade closed so no glass fell into passenger compartment thankfully. Upon inspection at the road side and discovery of the problem, the glass panel had a large hole in the middle and the edges of the remaining glass looked like it had been blown upward. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The windshield developed a crack. It initially started with what appeared to be a small rock impacting the bottom of the windshield where the wipers rest on the glass. The area of impact was the size of a small rock. A crack started forming and going upwards towards the roof of the car. Due to the heat in Alabama, the crack grew from 3 inches to approximately 9 inches. No safety features have been effected. I do commute 160 miles total for work, daily, so a crack that large necessarily creates a dangerous driving situation.

The contact owns a 2021 Subaru Outback. The contact stated while starting the vehicle, the starter motor was making an abnormal clicking sound. The contact stated that after several attempts the vehicle was started. Additionally, the contact stated that at times the instrument cluster was blank. The contact stated that he purchased a battery charger and recharged the battery; however, the failure persisted. The contact stated that once he had fully charged the battery the vehicle was started; however, sometimes the vehicle failed to shut off and the battery terminals had to be disconnected. The contact drove the vehicle to a local dealer who diagnosed that the OE battery was not sufficiently powerful to start the vehicle and provide power all the electrical functions. The dealer installed a new battery with more amperage and new cables. The vehicle was repaired. The contact was informed by the dealer that the manufacturer was made aware of the failure. The manufacturer was informed of the failure. The failure mileage was approximately 34,000.

The windshield has cracked now, unprovoked for the second time in the exact same way it did 2 years ago. I came out to my car and it was parked, and the same crack it had 2 years ago was visible on the windshield. A crack starting from the passenger side that travels to the middle of the windshield. I have heard about many other Subaru drivers having this issue and their windshield cracking the exact same way. The first time I had it replaced I took it to the dealership and had to pay, and they replaced it with OEM glass.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The windshield is very light and delicate. I have had two cracked windshields in less that two years, Also, the glass is so soft that it gets tons of micro-pits from sand. At night they each disperse lights and make it difficult to see.

Windshield breaks way too easy. Rock chips happen easily, then they spread across the whole windshield. I am on my 2nd one and this one needs to be replaced too.

The contact owns a 2021 Subaru Outback. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Chipped windshield quickly progressed to full crack, which necessitated windshield replacement.

12 inch Crack developed in windshield while car was parked in garage. No chips along the entire crack or in its vicinity. Car/windshield were less than 3 years old.

failure/malfunction of thermo coolant control valve some of the systems safety features have been disabled making it unsafe for me to drive vehicle The car gets hot and high beams don’t work heater doesn’t work. Diagnostic was performed by independent mechanic determining this issue Warning lights on dashboard to check engine and many other lights flashed Repairs cost over $1700 which is not affordable especially since this a manufacturer defective part.

This is 3 years old with 27000 miles. The driver's side seat has cracked and tear. This is what subaru is putting out there for the public. Cheap material and poor workmanship.