2020 Subaru Ascent Problems

The pressure sensor coming out of the transmission has failed, and it's pushed transmission fluid throughout the engine harness, transmission harness, the bull harness in the dash and the 02 sensors. All of those have been damaged. The car is now unsafe to drive due to the pressure sensor failing. This information comes directly from the Subaru dealership. There was nothing prior to this that indicated there was a problem. I bought the car from a certified dealership 8 months ago and it was a certified pre owned vehicle.

Component- steering locks Safety risk - vehicle cannot be started. Therefore if in an area of risk - cannot start vehicle. This randomly happens pulling into parking spaces. It is repetitive. I’m older and alone, scary when it happens as you are stranded. And call to Subaru roadside only option was to tow the vehicle the vehicle to dealership. Online fix is to man handle the steering wheel and turn it in the direction of the tension. Pulling into a normal parking space should not create the tension necessary for the steering wheel to lock. I have been on Subaru ascent form us and this seems to be a common problem with this vehicle. Mine has been inspected for the last occurrence and was told battery issue. The other times there were no battery issues and dealerships cannot find issues. Warning light only lights up after steering wheel locks up and vehicle cannot be started. The safety risk for me is being stranded - and no way to prevent it or know when it might happen.

Water intrusion occurred inside the vehicle, resulting in extensive mold contamination throughout the interior, including the seats, front and rear carpets, and a child’s car seat. The source of the water intrusion has not been identified. The vehicle was taken to an authorized Subaru retailer, which confirmed in writing that water was present inside the vehicle and that mold was covering interior surfaces, including the child’s car seat. The only diagnostic test performed was a car wash to check for a sunroof leak, which did not replicate the issue. The retailer indicated that further diagnostic work would require significant interior disassembly and cleaning at the owner’s expense before the source of the leak can be determined. The manufacturer was contacted regarding this issue and declined assistance, citing “lack of required maintenance.” The specific maintenance and its relationship to the water intrusion have not been identified, and the source of the leak has not yet been diagnosed. The retailer also stated that technicians would not enter the vehicle due to the extent of the mold contamination. As a result, standard recall repairs have not been performed while the vehicle remains in this condition. A dealership technician also documented in a recorded inspection that water was present beneath the carpet, that the source of the leak could not be identified without further disassembly, and that the extent of mold contamination created an unsafe working environment. This condition creates a potential health and safety concern due to mold exposure inside the passenger cabin, particularly for a child occupant. In addition, excessive interior moisture has caused window fogging, which may impair visibility while driving. No warning lights or prior indicators were observed before the issue was discovered. The problem has been confirmed by a Subaru retailer. The vehicle remains available for inspection.

The contact owns a 2020 Subaru Ascent. The contact stated that he parked the vehicle in the parking garage overnight and when he went to get into the vehicle the next morning, he noticed that the windshield was cracked. The vehicle was taken to the dealer and the dealer was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 60,000.

The Transmission is slipping on my 2020 Ascent. I had the recall wrk-21 performed in July of 2025. Over the last 6 months the car has been hesitant to go at low speeds and shakes at high speeds. Over the last month the transmission started to slip while accelerating , especially up hill. There would be a grinding noise and RPMs would jump. I took it to the dealer and they confirmed it was the transmission via camera test. I called Subaru of America for goodwill help with the cost knowing that there is a know issue with the transmission. They refused due to the mileage, 121,010. •What component or system failed or malfunctioned, and is it available for inspection upon request? The transmission is slipping •How was your safety or the safety of others put at risk? The car is hesitant to go from a starting position. The car will jerk back and forth when trying accelerate when merging or crossing a road. I am also very concerned of catastrophic failure at high speeds. •Has the problem been reproduced or confirmed by a dealer or independent service center? The dealer has confirmed the transmission is bad via camera teat. •Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Just the dealership •Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No dash lights just the feeling and sounds.

The pressure sensor coming out of the transmission has failed, and it's pushed transmission fluid throughout the engine harness, transmission harness, the bull harness in the dash and the 02 sensors. All of those have been damaged. The car is now unsafe to drive due to the pressure sensor failing. This information comes directly from the Subaru dealership. There was nothing prior to this that indicated there was a problem. I bought the car from a certified dealership 8 months ago and it was a certified pre owned vehicle.

The pressure sensor coming out of the transmission has failed, and it's pushed transmission fluid throughout the engine harness, transmission harness, the bull harness in the dash and the 02 sensors. All of those have been damaged. The car is now unsafe to drive due to the pressure sensor failing. This information comes directly from the Subaru dealership. There was nothing prior to this that indicated there was a problem. I bought the car from a certified dealership 8 months ago and it was a certified pre owned vehicle.

I was driving and I got check engine light and all safety features disabled while I was in the freeway, luckily I was able to drive to nearby Subaru dealer for inspection and I found out that there was a recall on the engine for this vehicle and when I contacted the manufacturer they asked me to take it for diagnostics and I did that at a Subaru retailer, but the case manager told me that this recall is being completed for the previous owner of the vehicle and cannot help me with anything, which was never disclosed when I was buying the vehicle.

I am reporting a repeat safety concern involving a 2020 Subaru Ascent. The vehicle was involved in two separate collisions after failing to decelerate as expected following normal brake pedal application. The first incident occurred on January 26, 2026. While approaching a traffic signal, I applied the brakes under normal driving conditions. The vehicle did not slow as expected and struck the rear of another vehicle. Property damage occurred, but no injuries were reported. The second incident occurred on May 5, 2026. While approaching a stop sign at approximately 35 mph, I again applied the brakes under normal driving conditions. The vehicle did not decelerate as expected and entered the intersection, colliding with a vehicle traveling perpendicular to my direction of travel. Both vehicles were towed. No injuries were reported. During both incidents, there were no forward collision warnings, automatic emergency braking interventions, or other alerts observed prior to impact. Following the second collision, the vehicle was inspected by an independent technician. Brake components inspected were found to be within serviceable condition and no evidence of neglect or improper maintenance was noted. During inspection, abnormal brake pedal behavior was observed, including continued downward pedal travel while steady pressure was applied. The technician documented that the reported condition was not consistent with normal braking performance and stated that an intermittent hydraulic and/or brake assist related issue could not be ruled out. The vehicle has been regularly maintained according to manufacturer recommendations. Due to the repeat nature of the condition, the lack of warning or intervention from safety systems, and the occurrence of two collisions despite normal brake application, I believe this condition represents a significant safety risk. The vehicle has since been declared a total loss and may be available for further inspection.

In December 2025, I had brake replacement, tire service, and wheel alignment performed at Monro Auto Service located at [XXX] child were traveling on the highway during a winter storm when the brakes began making a loud banging noise. My wife was unable to immediately locate a service location and was forced to continue driving for an extended period in winter storm conditions while in fear for her safety and that of our child. When she was finally able to reach a second Monro location between [XXX] and [XXX] , a technician discovered that one brake caliper bolt was missing entirely and a second was dangerously loose. The vehicle had been driven at highway speeds in a winter storm with an improperly and incompletely assembled brake system for an extended distance before help was found. The second Monro location secured the caliper bolt and confirmed the vehicle safe to continue. The original Fairport location was contacted and their manager acknowledged the issue but has failed to provide any meaningful resolution after nearly four months. In a formal BBB complaint response, Monro Inc. confirmed that the caliper bolt had not been properly secured and acknowledged filing an insurance claim for resulting rim damage — an implicit admission of negligence. I am filing this complaint because an improperly assembled brake system — specifically a missing caliper bolt — represents a serious and potentially fatal safety hazard. If this is a pattern of negligence at Monro locations, other consumers may be at risk. BBB Complaint Case #XXX is on file documenting Monro's formal response and admission. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am reporting a repeat safety concern involving a 2020 Subaru Ascent. The vehicle was involved in two separate collisions after failing to decelerate as expected following normal brake pedal application. The first incident occurred on January 26, 2026. While approaching a traffic signal, I applied the brakes under normal driving conditions. The vehicle did not slow as expected and struck the rear of another vehicle. Property damage occurred, but no injuries were reported. The second incident occurred on May 5, 2026. While approaching a stop sign at approximately 35 mph, I again applied the brakes under normal driving conditions. The vehicle did not decelerate as expected and entered the intersection, colliding with a vehicle traveling perpendicular to my direction of travel. Both vehicles were towed. No injuries were reported. During both incidents, there were no forward collision warnings, automatic emergency braking interventions, or other alerts observed prior to impact. Following the second collision, the vehicle was inspected by an independent technician. Brake components inspected were found to be within serviceable condition and no evidence of neglect or improper maintenance was noted. During inspection, abnormal brake pedal behavior was observed, including continued downward pedal travel while steady pressure was applied. The technician documented that the reported condition was not consistent with normal braking performance and stated that an intermittent hydraulic and/or brake assist related issue could not be ruled out. The vehicle has been regularly maintained according to manufacturer recommendations. Due to the repeat nature of the condition, the lack of warning or intervention from safety systems, and the occurrence of two collisions despite normal brake application, I believe this condition represents a significant safety risk. The vehicle has since been declared a total loss and may be available for further inspection.

I was driving and I got check engine light and all safety features disabled while I was in the freeway, luckily I was able to drive to nearby Subaru dealer for inspection and I found out that there was a recall on the engine for this vehicle and when I contacted the manufacturer they asked me to take it for diagnostics and I did that at a Subaru retailer, but the case manager told me that this recall is being completed for the previous owner of the vehicle and cannot help me with anything, which was never disclosed when I was buying the vehicle.

My 2020 Subaru Ascent struggles to retain power when accelerating, especially from stopping and especially when the fuel is low. The vehicle stalls or loses some power when trying to accelerate. The check engine light is not on and there is no other indication that there is a problem with the vehicle. I have discussed it thoroughly with my mechanic and we both think it sounds like a fuel pump issue. He looked at the other Subaru recalls and thinks my vehicle should be included in the other Subaru fuel pump recall (NHTSA ID Number: 21V587000). Does my vehicle qualify for this fuel pump recall? Thank you.

Possible Transmission issue. The transmission was replaced in February by University Subaru in Columbia, Missouri. I have made a second appointment as the vehicle is still having the same issue shifting gears or going uphill. During a drive where there was a small incline of 10 degrees when the vehicle somewhat jumped or as if it skipped a beat. I had stopped in traffic and when the other cars started to move, I started to drive forward, and the car jumped. A gap in the acceleration. I am scheduled to take it in on the [XXX] of April. I will follow-up with you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Water intrusion occurred inside the vehicle, resulting in extensive mold contamination throughout the interior, including the seats, front and rear carpets, and a child’s car seat. The source of the water intrusion has not been identified. The vehicle was taken to an authorized Subaru retailer, which confirmed in writing that water was present inside the vehicle and that mold was covering interior surfaces, including the child’s car seat. The only diagnostic test performed was a car wash to check for a sunroof leak, which did not replicate the issue. The retailer indicated that further diagnostic work would require significant interior disassembly and cleaning at the owner’s expense before the source of the leak can be determined. The manufacturer was contacted regarding this issue and declined assistance, citing “lack of required maintenance.” The specific maintenance and its relationship to the water intrusion have not been identified, and the source of the leak has not yet been diagnosed. The retailer also stated that technicians would not enter the vehicle due to the extent of the mold contamination. As a result, standard recall repairs have not been performed while the vehicle remains in this condition. A dealership technician also documented in a recorded inspection that water was present beneath the carpet, that the source of the leak could not be identified without further disassembly, and that the extent of mold contamination created an unsafe working environment. This condition creates a potential health and safety concern due to mold exposure inside the passenger cabin, particularly for a child occupant. In addition, excessive interior moisture has caused window fogging, which may impair visibility while driving. No warning lights or prior indicators were observed before the issue was discovered. The problem has been confirmed by a Subaru retailer. The vehicle remains available for inspection.

I can’t say what caused the huge crack in the sunroof bc there is no chips on the outside and no chips or breaking point on the inside. We went to get in the car and open up the sunroof and it has a huge crack that is a known issue if you look it up online. So far we haven’t been able to get it fixed bc of the amount of money it cost to have it replaced and it can’t be done by anymore but the dealer as safelight won’t touch sunroofs. It appears that a weak glass was installed and that’s unfortunate too bc they have no intention on fixing this for us.

My strut bearings have been replaced several times in the drivers sides, my shock and strut has been replaced twice on the drivers side and now the passenger side is doing the same thing. The dealership tells me that there is nothing wrong but research shows this car has known suspension issues. My passenger side front has a loud metallic grinding sound when turning the wheel in park. I’m told this is the brakes which makes no sense. The car feels like it is on ice or sailing down the road, and the car does not maintain an alignment causing the insides of tires to wear out after 15,000-20,000 miles and need to be replaced.

Car is making loud noises while going over uneven roads. Only have 64,000 miles on it and I need to replace the struts.

The driver's side headlamp assembly (one complete piece, LED lighting) has a thin strip at the top that is used for daytime running lights. These are automatically on when the vehicle is on and it's not yet dark. In early 2024, this driver's side thin strip daytime running lights stopped working entirely. I've learned that the entire headlamp assembly must be replaced, rather than being able to just change out the daytime running component or replace a light bulb like one used to be able to do. I've taken the vehicle in for an estimate, and the Nashville, TN Subaru dealership quoted me about $1700 to replace the headlamp assembly, with nearly $1,000 of that being for the light itself, and the rest being labor. The technician at the Subaru dealership was aware of this problem, with many others coming into the shop for the same thing, and he advised complaining directly to Subaru. There are aftermarket options for $200 but the labor is still excessive. From researching online about how to find the aftermarket options, I've learned from a quick google search, lots of posts on Reddit and Facebook, among other forums, of other vehicle owners of this year and the years surrounding it that it is a very frequently-occurring problem, related to it being too close to something in the engine- and others reported that this has happened multiple times to their same vehicle! I called Subaru of America to complain and ask for a Good Will replacement, but they said they would not be able to assist me as I was beyond 3 years/50k miles, and that I would have to go with the Subaru of America option. Please look into this and find that this is a common problem and the remedy should not be stuck to the consumer, with such an exorbitant bill. Subaru should address this known problem and a recall should be made so that we may have this corrected/those who have had to pay for it can be compensated. Thank you!

When vehicle was 3.5-4 years old, the LED "halo" around the headlight assembly went out. This part is a fixed part of the assembly and unrepairable and requires the owner to replace the entire headlight assembly. An LED headlight should not be going out after only 3.5-4 years. I have noticed this is a common complaint on online forums for the Subaru Ascent. Normally, this would just be a cosmetic nuisance, but in states, such as Virginia where I live, that have annual vehicle safety inspections, the vehicle fails inspection if any part of the headlight does not work, regardless of its effect on the functioning of the actual headlight lamp to produce light when activated. Further, this is a dealer only part and repair and I was quoted $1,300 for an issue that has no effect on the headlight to illuminate the road and is cosmetic only. Subaru needs to address this faulty assembly.

The contact's wife owns a 2020 Subaru Ascent. The contact stated that while his wife was driving at an undisclosed speed, the vehicle was stopped in traffic when a semi-trailer collided with another vehicle, causing that vehicle to crash into the front end of her vehicle. It resulted in a four-vehicle collision. On impact, the contact's wife hit her head on the steering wheel. The air bags were not deployed upon impact. The contact's wife received medical attention for her head injury. A police report was filed. The vehicle was towed to the contact's residence and was not yet deemed totaled by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,000.

The contact owned a 2020 Subaru Ascent. The contact was driving approximately 35 MPH on a highway when the contact's husband lost consciousness causing him to crash into a truck. As a result, the event leads to a 4 vehicle collision. The driver was transported via ambulance to the hospital where it was confirmed that there were no injuries. The other occupants in the other vehicles did not sustain any injuries. A police report was filed. The air bags did not deploy. The vehicle was towed to an impound lot. The vehicle was destroyed. The manufacturer was not notified of the failure. The failure mileage was 30,000. Case # [XXX] Goodman. Good morning this is a picture of my car and as it can be seen the airbags on either side did not deploy. Police report # is [XXX] date of accident and report was 3/5/2022. Thank you for your attention in this matter [XXX} and [XXX] Goodman (XXX) XXX-XXXX.

The contact owns a 2020 Subaru Ascent. The contact stated that while driving on several occasions at various speeds, the steering wheel became loose and then tightened inadvertently. The vehicle was taken to a dealer where the failure could not be replicated. The contact also stated that on several occasions while driving, the vehicle puttered and a grinding noise was heard emanating from the engine compartment. The vehicle was towed to a dealer where it was diagnosed during the first visit to be the transmission module. The vehicle was repaired, but the failure persisted sporadically. The vehicle was taken back to the same dealer on the second visit where it was diagnosed that the transmission needed to be replaced. The vehicle was repaired, but the failures reoccurred approximately 5,000 miles later. The vehicle was taken to the same dealer on the third visit where it was diagnosed that the tie rod end and bushing needed to be replaced. The vehicle was repaired, but the failure persisted. The vehicle was then taken to the same dealer on the fourth visit where the failure could not be replicated. The vehicle towed to the same dealer on a fifth occasion where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired as of yet. The manufacturer was notified of the failure and a complaint was filed. The failure mileage was approximately 82,000.

Component- steering locks Safety risk - vehicle cannot be started. Therefore if in an area of risk - cannot start vehicle. This randomly happens pulling into parking spaces. It is repetitive. I’m older and alone, scary when it happens as you are stranded. And call to Subaru roadside only option was to tow the vehicle the vehicle to dealership. Online fix is to man handle the steering wheel and turn it in the direction of the tension. Pulling into a normal parking space should not create the tension necessary for the steering wheel to lock. I have been on Subaru ascent form us and this seems to be a common problem with this vehicle. Mine has been inspected for the last occurrence and was told battery issue. The other times there were no battery issues and dealerships cannot find issues. Warning light only lights up after steering wheel locks up and vehicle cannot be started. The safety risk for me is being stranded - and no way to prevent it or know when it might happen.

I have the Graco Turn2Me car seat installed rear facing on the driver's side of the middle row (captain's chairs) of my vehicle. The car seat is installed with the seat belt due to my daughter's weight (36 pounds, so we were not able to use the latch). The car seat has been adjusted to the appropriate recline based on the installation method and weight of my child. There is an appropriate amount of space between the back of the driver's seat and the car seat itself. The car seat was installed by a CPST, following all rules of installation as laid out by both my vehicle manual and the car seat installation guide (graco). The issue is that despite the perfect installation, over time (meaning a few trips), the base of the car seat becomes loose as the child gets in and out of the car seat. The car seat is then no longer securely installed in the car. This particular model rotates, so that the child can be easily loaded and harnessed into the car seat while facing outwards. While the seat is facing outwards, it also tips backwards, essentially lifting a majority of the base off of the base of the seat of the car. I have reinstalled this car seat several times following all guidelines, and despite an initially correct install, within a few trips the base becomes loose and the entire car seat is tilted. Based on a quick internet search, this is a very common problem with this make and model car seat, especially when installed using the seat belt, rear facing. I do not feel that it is at all safe for my child to be in this car seat and it should be recalled immediately by Graco. No parent should have to uninstall/reinstall a car seat in a car after a few trips because it is coming lose. Photos attached show how tilted the car seat has become in the car (despite initially being installed securely). For some reason I was unable to upload videos but can share those as well showing how loose the base has become despite a proper install.

Left front wheel bearing found on inspection at local service station to be failing. Defect has been repaired by Subaru dealer under warranty on 7/26/22.

The driver front seat bottom frame has came loose and rocks back and forth when driving, especially during start and stops. It was serviced and the dealer stated the movement comes from the side rails of the seat and is referenced via bulletin 12-288-20 stating its a known issue and the frame has been redesigned for this issue. After research, this seems to occur with a number of Subaru models, but the defect has not been covered by Subaru. The movement causes concern if an accident were to occur and should be considered a manufactures defect with replacement being covered by Subaru.

The base for the infant car seat was installed by a car seat technician and the latch continued to come loose while driving. ( would move more than an inch) this car seat would look like it was never installed. When we contacted the manufacturer they stated they would need a receipt of purchase and a video of the car seat problem. And provided no advice on how to fix the problem.

TL* THE CONTACT OWNS A 2020 SUBARU ASCENT. THE CONTACT STATED THE PASSENGER SIDE FRONT SEAT WAS UNABLE TO BE EXTEND FAR ENOUGH BACKWARDS FOR THE SEAT BELT TO BE USED. THE CONTACT STATED THAT DUE TO HIS HEIGHT AND WEIGHT A STANDARD SEAT BELT WAS NOT ADEQUATE TO SECURELY FASTENED. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND NO FURTHER ASSISTANCE WAS PROVIDED. FAILURE MILEAGE UNKNOWN. THE VIN WAS NOT AVAILABLE.

245/50/R20 i WAS DRIVING ON iNTERSTATE 35 GOING SOUTH BY ESKO, MN. WHEN THE PASSENGER REAR TIRE EXPLODED. THE WHOLE SIDEWALL CAME LOOSE AND THE TREAD WAS COMPLETELY LOOSE AND FLAPING AGAINS THE UNDERCARRIAGE.

2020 SUBARU ASCENT. CONSUMER WRITES IN REGARD TO TRANSMISSION FAILURE. THE CONSUMER STATED THE MANUFACTURER HAS EXCEEDED A REASONABLE AMOUNT OF TIME DETERMINING A FIX FOR THE TRANSMISSION DRIVE SLIP TRAIN. THE VEHICLE HAS EXPERIENCED THE FAILURE. THE CONSUMER STATED THAT A NEIGHBOR SAID THE MECHANIC INFORMED HIM, "THE TRANSMISSION FOR SUBARU ACCENT WAS DEFECTIVELY DESIGNED FOR THIS CAR AND UNDER SIZED CAUSING IT TO NOT SHIFT PROPERLY."