2021 SUBARU FORESTER Unknown Or Other Problems

Vehicle was delivered with the wrong battery - reserve capacity. The car stalls out in idle position creating safety issues. My wife was stranded and we had the original battery replaced with the specs from the previous battery…causing the same issues to occur. Finally, we were informed of the improper battery installation

I am writing to file a formal complaint regarding repeated, severe, and dangerous malfunctions of the vehicle's engine Start/Stop (Idle Stop) feature. The system is failing to operate as intended, resulting in the engine stalling while the vehicle is in motion or under crucial driving circumstances, creating significant safety hazards. History of Incidents I have experienced four separate incidents where the engine unexpectedly stalled or shut down, creating extreme risk: Incident 1 (Railroad Tracks): The engine stopped while I was actively driving over railroad tracks. The car stalled on the tracks, and within seconds of the engine restarting, the crossing gates came down and a train passed. I narrowly avoided being hit by the train, missing the impact by approximately ten seconds. Incident 2 (Heavy Traffic/Bridge): During heavy, back-to-back traffic as a bridge (PGA bridge) was opening, the car momentarily stopped and then resumed movement. The unpredictable stopping motion created a severe risk of being rear-ended, as the following vehicle would have had difficulty anticipating the sudden, unintended stop. Incident 3 (December 2025): While taking a right turn, the engine stopped suddenly, with dash lights blinking, during only a slight pause in vehicle movement. This occurred while the vehicle was still maneuvering. Incident 4 (The following day): The engine stopping malfunction described in Incident 3 occurred again the next day. Attempted Repair and Ongoing Concern Two years ago, the dealership installed a new battery following the first two incidents. However, the problem has now recurred this week (December 2025). The dealership has informed me that using a third-party device to permanently disable the Start/Stop function would void the powertrain warranty. Causing Mechanical Stress: I believe the continuous, potentially faulty activation is putting unnecessary stress on the battery, electrical system, and engine components, which may ultimately shor

My Subaru has an auto start/stop. I was at a complete stop, making a left-hand turn, and my car completely shuts off with the following message: For safety, auto restart disabled; eyesight with a \ through the words, put car in park and restart vehicle. In the time it took me to put the car in park and restart, I was almost T-bone. This was terrifying. This had happened on previous occasion in stop and go traffic which is dangerous because my car has come to a complete stop without any warning to me where the driver behind me There are no warning symbols, warning lights, or any type of signal or symptoms to notify me that my car was going to stop completely.. Typically I remove my foot from the break, the car starts and then I put my foot on the gas pedal and the car moves forward. In the situations described above the car just stopped.It just flat out stopped. There’s never been any indication or signal to indicate the car is not going to restart The retailer replaced my battery and said it should help. I called the Subaru factory rep who was of no help. She said she is not a trained technician and all that she could offer to do was to contact the retailer. The dealer was not able to reproduce the problem. The retailer replaced the battery without any response about the safety issue. I asked if Subaru had a safety board I could report this too and the factory rep said no, but she will document it and they’ll do an internal review to see if we have any other similar issues reported, however, they will not contact me because they don’t talk to the public about these issues. I told her there are hundreds of these if not, thousands concerns online stating the same issue. The rep said she would document my concern. Documentation is good if there’s a fix but I’m concerned about the unnecessary death of a driver.The retailer also advised I could do the auto start override, I’m trying to make a point of how serious of a safety issue this problem can be. Thank you!

After arriving home from a short drive to the grocery store I parked my car in the drive way and went inside. On the drive home I could hear a low humming coming from the speakers and the car was decelerating when the accelerator was not being pressed, no warning lights or sounds came on. About 10 minutes after I parked a neighbor knocked on the door letting me know my car was smoking from inside the hood. Within a minute or 2 the entire hood of the car was engulfed in flames. The entire front half of the car burned to a crisp, the fire also burned half a tree. The car was burning so hot that it melted the hood of the car, had I parked it with the hood facing my house my house would have caught fire. The problem has not been reduced or confirmed by dealer or independent service. The vehicle is being stored by the insurance and for the time being is accessible for investigation. Because I was having trouble with the infotainment system, the humming coming from the speakers, and a recent warranty extension by from Subaru for the infotainment system due to known issues I suspect that the fire was caused by electrical issues.

We purchased a 2021 Subaru Forester Touring SUV on [XXX] at the El Cajon Subaru dealer and this July, I experienced the transmission (CVT) inadvertently shift from drive to neutral twice in one day. This was a concern to me and after I did research online, I was very surprised to discover that this has been an apparent issue with the CVT transmission. We then arranged to have the vehicle towed to the Kearney Mesa Subaru in San Diego for them to diagnose the problem. They found NO issues! I contacted the Subaru Manufacturer at Subaru.com and received a Case # and Jorge, a customer service individual called us today, 8-6-2025 , to address my inquiry. He informed us that if the dealership was unable to duplicate the problem then he was unable to request further action. This was an issue that he was unfamiliar with, or had ever even heard of, and could only suggest that we have the vehicle seen, again, by another dealership to see if they can determine the problem. This is very disappointing as we have only driven this vehicle less than 1000 miles since purchasing. And since I'm now reluctant to drive any distance in this vehicle, or on freeways, will need to have it, again , towed to another dealership as suggested! I would very much appreciate any information you can provide on how to approach this circumstance and if you have encountered any additional complaints specifically related to the Subaru CVT transmission shifting unexpectedly into neutral. Thank you for your attention to this request as we find this a significant safety concern that needs to be addressed. .INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The Auto-Stop/Start feature frequently fails to properly restart the car, often causing the car to stall during the restarting process, leaving me effectively disabled on a busy road. The battery has already been replaced once.

I commute with my car and recently it started to speed up all by itself. I removed my floor covers thinking the gas pedal might be stuck on it but that wasnt the problem. While accelerating from a stopped position, it revs up and accelerates rapidly all by itself. Tapping the break pedal to deactivate accidendal cruise control doesnt work. I have to slam the break just to stop it from accelerating on its own. This is the fourth time it's happened. I have my personal mechanic change the oil every 3k miles and follows the factory recommendations on all other manufacturers recommendations. Very scary to drive because it happens at random.

The automatic shutoff that occurs when the vehicle stops to prevent idling, disengaged two separate times in the span of 4 days. Both incidents occurred at very busy intersections and failed to restart both times. When attempting to restart the car, lights came up on the dash, along with beeping, and failed to restart the car after the light had turned green. To restart, the car had to be completely turned off for about 60 seconds and then could be restarted. To avoid having to experience this issue again, or worse - get into an accident - I took it to the shop where they could not recreate the issue.

Automatic stop activated at traffic light. When the brake was disengaged, the star would not start. The occupant was stalled at the traffic light during rush hour in a thunderstorm with limited visibility for approximately 15 minutes. Winter Haven Police Department was dispatched but did not arrive probably due to other weather-related traffic situations. After that time, the engine did start and was moved into a lot without incident. The good Samaritan that assisted stated he had just stopped down the street on another disabled vehicle in traffic due to malfunctioning auto stop/start. Here is the issue. The alternator and battery have both been checked twice and were in proper order. The OE battery was in use. There was no warning to indicate any issue with the batter. In fact, the Subaru app was reporting the vehicle was operating normally while the vehicle was dead in the road. I work with a local law enforcement agency and have worked fatal crashes on that road. It is unacceptable for the vehicle to not have some type of redundant system to warn owners that the vehicle battery is failing before they are thrust into a possible deadly roadway breakdown.

My dealer diagnosed issues with my car as: the gasket around my sunroof failed and allowed water to infiltrate the cabin and the electrical system over time. This caused corrosion in the electrical harness, which caused battery failure, failure of the adaptive headlight system, and random electrical glitches. My interpretation of their diagnosis was that this was a cascading failure that might have led to problems with other electrical components such as power brakes, other adaptive systems, etc., and affected safety, if it had not been diagnosed in time. An insurance appraiser confirmed the dealer's diagnosis. Repairs (including replacing the electrical harness) have been completed and so the situation is not available for further inspection. When the adaptive headlight system stopped working, this was reported on the dashboard, but the cause of this and the base problem was not.

1. The car shut off several times, with the steering wheel locking up and becoming stiff, the brakes failing to respond, and loud, erratic sounds emanating from the vehicle. The car is available for inspection. 2. Yes, the car crashed resulting in damage to the car, driver, and other driver (e.g. car in front). 3. This is the second time the car has been brought to the dealership (the second time being Subaru South Hill in Pennsylvania) and they cannot identify the problem. 4. The vehicle was not inspected by police, or insurance, as far as I am aware. 5. There were no warning signs before the failure.

In the summer of 2024, my forester started completely stall out when I was stopped at a stop light. The auto start/stop system seemed to not turn back on. I would have to put the car in park, turn the car off and turn it back on. It was very scary being in traffic and people getting upset behind me. This happened multiple times. I took my car to the dealership. I was told an update needed to be installed and it was not anything I could do at home. After that point, it worked better, but still started back up hard at times. When I remembered, I typically started turning the feature off each time I drove it because I do not trust the feature. Unfortunately, it happened again yesterday. We were at a stoplight, and the car did not start back up, it stalled out. My husband had to quickly try to put the car in park, turn it off and then back on. Cars started honking at us. I am very concerned about this feature.

12/14/24-I was stopped at a red light at a VERY busy intersection. The engine was in stop mode by the start/stop feature. When the light turned green, the car failed to start. The entire car shut down, with alarms sounding and dash lights flashing. The entire system had to reboot before I could restart the car. It was a freighting experience. Fortunately, I wasn't killed by traffic zooming by or by some person with road rage. 12/16/24-Issue evaluated by local Subaru dealer. Their evaluation was that when the auto start feature was activated, my car battery was too low to work. There was zero warning about a low battery before this failure in traffic. I had to buy a new battery. The auto start/stop feature is not an enhancement, but a safety hazard. Owners should be able to permanently disable this unnecessary drain on batteries and starters. I did a search, and there are plenty of others that experienced similar issues with their Subarus.

Windshield has spontaneously cracked 2 times within ~30 days in the lower passenger side. No preceding event or chips in the windshield before cracking.

I’ve owned the vehicle under a year and am already on my second window replacement. I drive the same route everyday and ever experienced windows cracking in any other vehicle before this vehicle.

To whom this may concern, My name is [XXX] . I was the owner of a 2021 Subaru Forester. I bought this car brand new and I loved this car. One of the biggest reasons I bought a Subaru is because of the multiple safety features the car has. I've had this car for three years and always felt safe until last week. During a road trip on [XXX] at [XXX] My car hit a deer on the front drivers side and within seconds caught on fire. The entire car was engulfed in flames within 3 minutes. All passengers were unharmed and we were able to get 95% of our stuff out of the car. This experience was pretty traumatic knowing that I was supposed to be driving the safest car in America and it caught on fire very easily from a baby deer hit. Not only did my car catch on fire but it left us stranded in the middle of Utah. Thank god it was in a big enough town that had a car rental. Insurance is still assessing my car and I'm currently in the market for a new car but with everything that happened it makes me feel very uneasy about getting another Subaru. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My vehicle starlink infotainment system does not work. This is a safety hazard because it prevents drivers from using their back up cameras and this car has many blind spots. This also frustrates drivers and causes distraction as navigation is not available. The screen display abruptly stopped working. I brought my vehicle to the dealer and their solution was to spend $1700 on a new infotainment system. Owners should not have to be paying to utilize safety features marketed for the vehicle they bought. There were no warnings prior to the system breaking.

My Forester was parked and when I started the car I heard a pop, pop, pop. Looked at my front windshield and watched it crack from the lower left - driver side - up to the center of window, with each pop. Googled - the community has posted similar problems with Subaru windshields. Temperature on [XXX] in Phoenix was 60 degrees at the time of windshield popping. No impact, parked car, started engine and crack just started and I watched it expand from 2 inches to 24". Very scary! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I have ~50,000 miles and have had an excessive amount of chips on my front windshield. Getting them filled doesn't matter, and the windshield will crack. I've replaced the windshield twice since owning this vehicle at $1200+ (high costs due to front camera recalibration). I've owned many vehicles over the years and have never had a windshield chip or crack this frequent. I've seen many other complaints online, did Subaru cheap out on glass or is the wind shield angle ineffective in shedding simple road debris from causing failures? I have concerns that the windshield would be unable to stop larger debris from entering the cabin and potentially injuring occupants.

I was driving my 2021 Subaru Forester on the highway and suddenly I saw with my own eyes a crack appear in the front window shield glass. A thin crack, about 2 feet long. curved shape. in the section in front of the steering wheel. It was out of nowhere; there was no warning lamps, messages or other symptoms of the problem prior to the failure. I was terrified and shocked, as my car was just 2 years old. No one was hurt, and other cars were not affected as I continued to drive stably. But I was a bit shaken, as I was worried the crack might burst wider and thus I would lose control of the car. Thankfully, it stayed that way and I exited the highway and pulled over at a mall and called the dealership. The dealership was not very responsive: I was asked to call the next Monday again and schedule a time to bring the car there for inspection. It was definitively the poor quality of the glass/defect. I purchased extended warrant/Added Security from the dealership when I bought the car. It should cover this defect. I was hugely disappointed with the quality of Subaru car. Will never buy this brand again.

It was a very cold night on Dec. 21, 2022. I traveled out of town. I don't recall seeing or hearing anything hit my windshield. However, on Dec. 22, 2022 when I got back in my car, I noticed a very long scratch across the windshield. It is now Mar. 1, 2023 and it has gotten much worse. I am unsure how to go about getting it fixed because I cannot pay for the repairs.

Windshield has cracked twice in last month, in separate areas. I replaced the windshield on 11/9/22 and identified a new crack on 12/18/22.

Glass cracked for no reason. According to this article Subaru has been sued related to 2017-2020 Foresters for a similar reason https://www.torquenews.com/1084/new-ruling-subaru-cracked-windshield-lawsuit-now-adds-25m-cars

I purchased a 2021 Subaru Forester with approximately 9000 miles on the odometer. Purchase was made on October 18, 2022, then on October 19, 2022 I experienced unintended acceleration on my way home that day with the car. The car just seemed to have a mind of its own and just "took off" at high speed and quickly it returned to normal. I simply thought I did something wrong and kept driving the car. Then on November 2, 2022 while in my driveway, the unintended acceleration happened again and this time the car hit a building on our property and both the building and the car suffered severe damage.

On 08/23/2022 while driving on a four lane city street, light rain, moderate traffic, at about 35 mph, the car suddenly lost forward speed, depresssing the accelerator move rpm to over 3000, with continued loss of forward speed, until suddenly the drive train engaged and forward speed resumed. This is the fourth time this type of event has occured. A check at a Subaru dealer the next day revealed no codes in memory. Fortunately there was no heavy traffic on this road at the time because in another half hour there would have been very heavy traffic. This is very disconcerting and potentially dangerous to vehicles directly behind. Is there a problem with the Eye Sight system that triggers a sudden loss of speed when there is no vehicle close ahead?

Windshield developed large L or J shaped crack from very top near roof line, down center of windshield and turns toward the Drivers side. This car was PARKED in our driveway at home when it cracked. No stone chips, nothing dropped on it as you can see in attached pictures. We will schedule a visit to Subaru dealer here in Knoxville, TN. for inspection. No warnings because vehicle was parked in our driveway.

Uknown. This vehicle was purchased in January of 2021. Approximately a month afterwards, the windshield had cracked and I paid out of pocket to get it replaced. Shortly after replacing the windshield, it had obtained 2 chips on the windshield and from the second chip, it cracked from the bottom left corner up towards the middle of the windshield. The frequency in which chips and cracks are occurring, especially after purchasing the vehicle brand new and shortly after replacing the windshield, is alarming. This puts my safety at risk because of its interference with visibility and Subaru Eyesight which is suppose to be a safety feature on the vehicle. This has been an ongoing problem with Subaru and their windshields. After owning the vehicle for just 18 months and having replaced the windshield already, this should not be happening in such frequency.

Windshield chipped while driving 60mph on the freeway. A few minutes later while stopped at a light it developed an 18 inch crack as we watched it happen.

Design flaw-2022 Subaru Forester, Antenna placements inside body of car result in pacemaker interference and make it impossible to drive in and avoid. Antennas are built into frame of car and cannot be disabled to accommodate for disabled persons who have implantable medical devices. Inability to be able to permanently and completely disable technology that can interfere with implantable medical devices including "StarLink", GPS, Wireless and Radio wave technologies. Failure by Subaru to release testing results of above telematic devices to consumers. Failure by auto industry to properly test these systems before implementing into autos. Failure by auto industry to allow for accomodating people with disabilities to operate and purchase safely autos with these features. I want a black box warning on all vehicle stickers and complete disclosure in writing to dangers and exclusion to disable person to operate these vehicles! I disclosed to sells staff at Subaru at time of looking at vehicles to purchase that I have pacemaker, no warning was giving or safety concerns for persons with pacemakers. After purchase of vehicle and experiencing pacemaker function issues caused by these systems I was informed to stay 8" away from all antennas, which is impossible to do while driving or sitting in or near vehicle. I now have a vehicle I cannot drive and Subaru has refused to buy back to vehicle. I also want all any any testing info result findings do by NHTSA/Subaru to be mail to me asap! Thanks for your time.

Windshield is faulty because it cannot hold up to small impacts of small rocks. I was driving on the freeway and a nearby car picked up a small rock which impacted my windshield glass. There was about one centimeter circumference star crack that webbed out 1 inches. While driving, the crack grew to 1 foot long in the span of less than 30 minutes during the drive (this day the outdoor temperature was 49-50 degrees F.). This is the second time this has happened. I had recently replaced my windshield about 8 months ago when rock hit windshield and crack grew over 2 feet. I have purchased the car 14 months ago and needing two windshield replacements.

My windshield shattered when hit by a small rock that apparently came from across and bounced up and hit the windshield. Subaru does not replace windshields... so you have to get Insurance to cover. The wiring in a Subaru is attractive to rodents - what the wiring is made of depends on who you speak with - most common answer is Oat Based Covering. I have spent over $4000.00 to have the wring in the front and fuel area. This is a 2021 Subaru Forester with less than 12K miles. Subaru can not give a straight answer on material in the wiring and says I need to build a shed. There are 4 other vehicles at my location that are there 20 hours a day - I go to an office 5 days a week so my car is gone over 50 hours a week - still my fault!

I leased a 2021 Forester in April, and around September, I got a J shape crack in the bottom center of the windshield. Subaru dealership in Glendale, CA told me they would replace the windshield free for the first time. Had to wait until mid-December for the backordered replacement to come in. Today, 1/5/22, was driving on the highway and a small projectile on the road caused a starburst crack on my newly replaced windshield.

Windshield cracked after it was hit by a rock. I have been told there is windshield issues with this vehicle.

Windshield cracked for no apparent reason.

Windshield started cracking

I was on highway and I was not tailgating other cars. While on highway, a tiny rock (so tiny didn't even see it make impact) hit the windshield of my 2021 Subaru Forester. It left less than .5 inch of crack on windshield. The next day, the crack grew to the edge to over of half the windshield. The windshield is surprisingly extremely weak and susceptible to cracking and breaking. If such a tiny rock cause cause that much damage to the windshield, I fear for my safety and passengers' safety if larger hail or other debris will hit the windshield. Worse, if an accident would occur face-on, we will not be protected by the windshield. This is unacceptable that the windshield is weak and poorly manufactured. I brought car to the dealership and they inspected and took photos. I have also contacted Subaru corporate and I am waiting for their follow-up contact.

This is for a car only 18 days driven. Windshield cracked from bottom, under retaining gasket, with no strike, impact, or previous ding. Car hood flexes up and down, more than 2-inches, when large trucks pass in opposite direction. Automatic fuel stop at pump did not work properly, causing fuel spill one time, and underfill another time. Windshield visibility and possibility of total failure. Car hood could fly up and obscure visibility and break windshield. Have not contacted dealer or insurance company yet about issues. Windshield problem is a known defect for Subaru, and subject of many lawsuits. No warnings before problems.

WHILE PARKED AT WORK, MY WINDOW CRACKED ABOUT 10-12' RIGHT DOWN THE MIDDLE. IT LOOKS LIKE IT FORMED FROM A SMALL PIT IN THE WINDOW. EVEN THOUGH THE CAR IS MAYBE 5 WEEKS OLD, IT LOOKS LIKE THERE ARE A BUNCH OF THESE SMALL PITS ALL OVER THE WINDOW WHICH COULD BE A MANUFACTURING DEFECT. MY FRIEND HAS A 2020 FORESTER THAT HAD THE WINDOW CRACK IN THE SAME FASHION AFTER ABOUT 5 WEEKS OF OWNING THE CAR AS WELL. I HAVE ATTACHED A PICTURE OF THE DAMAGE TO THE WINDOW.

Mileage: 1,750