152 of the
1,331 complaints filed about the Subaru Ascent
are about the other systems —
11% of everything owners reported.
The worst model year for it is 2019.
Immediately after pushing the lift gate release button on the dash, a loud and constant alarm tone began. The gate would then not open using the button on the dash, remote, or handle on the exterior of the lift gate door. To access the items in the rear (and to stop the alarm), we needed to get the door open. We followed the owner's manual exactly to access the internal emergency release. We removed the plastic cover for the gear unit, then used a screwdriver to manually move the release to the right. Despite every amount of pressure we tried, including adding pressure by pushing down on the gate from the outside with one person while another tried the release procedure, the gate would not open. We ended up looking on YouTube, and found a video that this is not uncommon - and that the solution is to disconnect the battery or to remove fuse #14 on the fuse panel. With tremendous effort and using a pair of pliers, we finally removed the fuse. The alarm stopped but the gate (and other parts of the electrical system) were now off. We replaced the fuse and the door returned to normal function and opened using the handle on the lift gate. This is a tremendous safety issue. First, there is no easy way to open the gate manually from the interior in the case of an emergency (removing the safety cover and the use of a screwdriver or similar tool is required). Second, this emergency process failed completely, as the gate couldn't be opened at all using the manual release.
NHTSA complaint #11758028 — an unverified report by a vehicle owner.
I am reporting two issues with my vehicle that I believe require further attention and repair assistance. I am requesting that both issues be properly repaired without any charges to me. There are no warning lights, error messages, or other dashboard warnings related to either issue. However, both conditions are abnormal and affecting the vehicle’s operation and ownership experience. 1. Steering Noise (Inside Cabin). The steering assembly inside the cabin. Whenever I make any type of turn, either left or right, I hear a noticeable clicking/clocking noise coming from inside the steering column area. I want to clarify that this noise is not coming from the wheels, tires, suspension, or steering components connected outside the cabin. The sound is specifically coming from the steering wheel/steering column area inside the vehicle. I have had this concern checked, and the only suggestion provided was to replace the suspected component. The dealer did not provide written confirmation of the diagnosis but verbally advised that they could replace the component and see if it resolves the issue. However, since there is no guarantee that the replacement will correct the problem, I do not feel comfortable spending my own money on a repair that has not been confirmed. I have also spoken with multiple third-party mechanics, and some have verbally indicated that this type of steering noise is a known issue that can occur after a few years and may be related to the clock spring (spiral cable/ribbon) or another internal steering column component. Because this appears to be a known manufacturer-related concern and not a result of misuse or neglect, I request that the issue be properly repaired at no cost. 2. Rear Brake Squeaking Noise. The rear brake pads and rotors are new, but the brakes continue to make a noticeable squeaking/squealing noise. The noise usually occurs after driving for some time, especially in warm weather when the brakes reach normal operating temperature.
NHTSA complaint #11755178 — an unverified report by a vehicle owner.
NHTSA Vehicle Safety Complaint Vehicle: 2019 Subaru Ascent VIN: [XXX] Mileage: 72,093 miles I am submitting this complaint because my 2019 Subaru Ascent experienced a serious transmission-related electrical failure that may represent a broader safety defect. Sewell Subaru of Dallas diagnosed an internal failure of a transmission pressure sensor. According to the dealership’s written report, the failed pressure sensor allowed transmission fluid to leak into the electrical wiring harness. The transmission fluid then migrated through the wiring and into the bulkhead harness. The dealership advised that the fluid contamination had affected multiple parts of the vehicle’s electrical system and recommended replacement of the transmission wiring harness, engine wiring harness, bulkhead harness, Engine Control Module (ECM), Transmission Control Module (TCM), and related components. Because the wiring harnesses are routed throughout the engine compartment and vehicle, the repair also requires extensive disassembly of the vehicle, including disconnecting and removing numerous engine compartment components to access and replace the contaminated harnesses. The estimated repair cost was approximately $12,000. I also have video documentation of the dealership technician performing the inspection and explaining the transmission fluid contamination and migration through the wiring system. I am willing to provide the video, the dealership's written diagnosis, repair estimate, photographs, and any additional supporting documentation upon request. My vehicle falls within the published VIN range associated with Subaru recall WUV-07, which involved the CVT hydraulic pressure sensor harness and transmission hydraulic pressure system. That recall was later superseded by WRK-21. I understand that the published recall addresses electrical resistance and transmission hydraulic pressure readings rather than transmission fluid leakage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11754232 — an unverified report by a vehicle owner.
Sirius XM ads showing up and there’s no way to opt out. The ads are distracting/difficult to close and cover a good amount off my media system even while driving.
NHTSA complaint #11741883 — an unverified report by a vehicle owner.
I am submitting this complaint regarding a known exhaust manifold/flex pipe failure affecting my 2020 Subaru Ascent Touring (VIN: [XXX] ). My vehicle was diagnosed by a Subaru dealership with a “broken flex pipe on the header” causing excessive exhaust noise and exhaust leak concerns. Repair estimate was slightly over $2,000. After researching the issue, I discovered numerous reports from other Subaru Ascent owners describing identical failures involving cracked exhaust manifold welds and failed flex pipe sections. Subaru has also issued TSB 09-106-23 involving exhaust manifold weld cracking and redesigned replacement components for this issue. Symptoms began in the low 70,000-mile range and progressively worsened before formal diagnosis at approximately 83,000 miles. This appears to be a widespread defect involving emissions/exhaust components. Many owners online report loud cold-start exhaust noise, cracked manifold welds, failed flex pipe sections, exhaust fumes/smells, and expensive manifold replacement repairs. My concern is both the widespread nature of the defect and Subaru’s handling of complaints regarding the issue. Initially, Subaru denied assistance because the vehicle has a branded title. After documentation was provided showing federally mandated emissions-related coverage/extensions were active for this VIN regardless of title status, the denial basis changed to mileage. After explaining symptoms began prior to the mileage threshold, Subaru then cited lack of dealership service history after my ownership despite the vehicle being regularly maintained by a local mechanic. I am requesting NHTSA review whether this exhaust manifold/flex pipe defect represents a broader reliability and emissions-related defect trend affecting Subaru Ascent vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11739638 — an unverified report by a vehicle owner.
Issue 1: Complete transmission failure was diagnosed by Subaru dealer March 24, 2026 at 5 years and 6 months after purchase with an odometer reading of 45,000 miles (drive train warranty 5 yrs/60,000 miles). Had to purchase and have installed a rebuilt Subaru transmission. First noticed transmission was slipping with a large load in vehicle May 2025 at 4 years and 8 months after purchase at about 40,000 miles on odometer. The issue was subsequently not noticed under typical load until slipping transmission signs reappeared December 2025. Made appointment in March 2026 due to a planned trip to [XXX] mid-February to mid-March. Failed transmission poses critical safety risks including loss of acceleration, stalling in traffic and unexpected deceleration. Subaru of New England was able to install the transmission at about 50% of the initial estimate over $12,000 (final paid $5400). Subaru of America file was claimed (Case # XXX-XXX) for the balance, but any further reimbursement was rejected. Issue 2: Driver window alternating between getting stuck fully opened as well as reversing to the open position when trying to roll up. The failure of window regulator and channel run was diagnosed by Subaru dealer March 24, 2026 at 5 years and 6 months after purchase with an odometer reading of 45,000 miles. Had to purchase and replace the Subaru window regulator and channel run. Power window failures in the open position create significant safety risks including vehicle theft, interior damage from weather and occupant vulnerability. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11729610 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11728801 — an unverified report by a vehicle owner.
2022 Subaru Ascent. Noticed progressive strong odor in the car. After rain had significant fluid accumulation in the front passenger ceiling, inside front passenger door (sloshing), and wet carpets on the floor on the passenger side. Serviced by Subaru dealer water specialist who reported (1) clogged moonroof drains and "popped off connector" leading to flooding of the entire front passenger ceiling; (2) detached vapor barrier in the passenger door allowing water to collect inside the door and drain into the car; (3) significant concern for mold based on the extent of damage and odor accumulating over time. Told by dealer the drains could be unclogged and they'd repair the popped off connection with a zip-tie fastener since it was not tight enough before, re-affix the vapor barrier in the door, but otherwise their expressed SAFETY concern related to the extent of suspected mold and the poor effects that would have on the health of us and our children. Told the mold was unlikely to fully remediate despite usual efforts, as it creates a fibrous web that is very difficult to ever fix, and the recommendation was that we probably not drive the car again. Told no water damage of any etiology is covered under any Subaru warranty. Dealer refused at first to give documentation about the service or recommendations. Later gave but left off mold documentation - we requested they add it back on, if we choose to sell or trade in the vehicle later we refuse to do so without the mold and associated health risks being public knowledge for a future owner of this vehicle. We also reported that our Subaru Eyesight (collision avoidance system) had been intermittently shorting out, online reports show this can be related to drain floods. No report/update thus far by Subaru on this, also not included in report. We filed a complaint with Subaru of America but have not been called back despite two weeks of repeated calls to them for an update.
NHTSA complaint #11725797 — an unverified report by a vehicle owner.
While driving the passenger door window behind the driver burst, then began falling into the car. The safety issue would have occurred if one of my grandchildren were sitting there. Also, the startling event of it just bursting and possible causing a jerk in the car. The dealer said that they have not heard of this and would not repair under warranty (brand new car, purchased in September). Police investigated and saw nothing that would have caused an outside force to break the window. No warnings
NHTSA complaint #11721168 — an unverified report by a vehicle owner.
2021 Subaru Ascent (VIN#***). Water found dripping down both second row seatbelts on multiple occasions during or following heavy rain, accumulated into mold growth on the carpet in front of second row seats to the front of the 3rd row seats (cargo area dry, front footwells dry). Authorized Subaru dealer technician report (dated 10/29/25 and 12/3/25 copy pasted into email) explicitly documents 'condensation build up on the interior of roof (seat belt area)' due to unlocated water intrusion. The dealer attributes this to 'leaf debris' in the front cowl area and rear hatch hinge despite the leak occurring at the rear C-pillar (and notably cargo area and front footwells showed no moisture making this physically impossible). Despite confirmed moisture exposure to critical passive restraint systems, the dealer relays that the manufacturer has issued a verbal-only warranty denial (stating no addl records exist aside from the initial technician report) and suggest the only repair be carpet replacement, with refusal of confirmation of the source of the leak and no proposal of replacing the 2nd-row seatbelt retractors nor provide a written safety guarantee. The vehicle is covered by an active 8yr/120,000-mile Subaru Gold Plus Added Security Plan (Agreement #*******, started on 8/2/21), yet the manufacturer is refusing to honor the contract for the defect or the resulting biohazard ('mold spouts' documented by their technicians on carpeting and into the foam). This unaddressed moisture creates an unreasonable risk of internal corrosion and failure of the seatbelt G-sensor/locking mechanisms on both sides. Also as an immunocompromised owner (due to medication for multiple sclerosis to such an extent that requires monthly IVIG infusions), the documented mold is a significant health hazard. Vehicle has only 15,166 miles. Correspondence with dealer and SoA as well as agreement# are available on request. Date of incident was when taken to dealership (events in summer/fall 2025)
NHTSA complaint #11714272 — an unverified report by a vehicle owner.
Although the NHTSA form does not include a transmission category, this complaint concerns a critical transmission-related defect in my 2020 Subaru Ascent, which caused oil migration into the wiring harness and contamination of the Engine Control Module (ECM). This complaint concerns a critical transmission-related defect in my 2020 Subaru Ascent. The vehicle has been inoperable since June 2025 due to a failure of the transmission secondary pressure sensor. This failure caused oil to migrate into the wiring harness and ultimately contaminated the Engine Control Module (ECM), rendering the vehicle undrivable. Authorized Subaru dealership Huberger Subaru in Colorado Springs documented the following: - Replacement of the transmission secondary pressure sensor - Replacement of the engine wiring harness - Check engine light returned after repair - Confirmed oil contamination of the ECM Despite repeated repairs and part replacements, the vehicle remains out of service for over seven months, with no confirmed timeline for resolution. Subaru of America has not provided meaningful updates or a clear repair plan, and corporate representatives have failed to respond to emails and phone calls. The extended downtime and lack of repair constitute a safety concern, as the vehicle could fail while in use under certain conditions. Additionally, $400 was improperly withdrawn from my account in July 2025 for rental reimbursement during the warranty repair period and has not been refunded. I am seeking prompt resolution, including repair or replacement of the vehicle, reimbursement for the rental charge, and any appropriate actions from Subaru to address this safety-related defect.
NHTSA complaint #11714081 — an unverified report by a vehicle owner.
The transmission on our 2021 Subaru Ascent is slipping and failing to accelerate, RPMs reving, and every issue indicator notification light is on. We took the car to our mechanic, then to the Subaru dealership service dept for diagnosis. A full transmission replacement is required plus associated repairs for a cost of $14,543.98. Service estimate attached. This repair is more than 2/3 of the value of the vehicle. This make/model and transmission type have documented problems and Subaru has previously issued an extended warranty on other model years for this same transmission issue. We are trying to communicate with the Subaru customer service but have had limited response due to the holidays and have not had a resolution yet in the past month.
NHTSA complaint #11710776 — an unverified report by a vehicle owner.
i purchased this vehicle from Northwest Chevrolet in McKenna, Wa on [XXX] and they did not disclose to me that there were open recalls prior to my purchase. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11710309 — an unverified report by a vehicle owner.
Vehicle: 2020 Subaru Ascent Issue: Cold weather software glitch If you are operating an Ascent or possibly other Subarus with the CVT in temperatures below -20F be certain to have either a small wrench or the appropriate size socket to loosen the ground clamp on the battery ground cable with you so you can employ what I call the magic Windows fix wherin one completely de-powers the system and reboots it. With all the ridiculous interconnections, if the CVT temperature sensor thinks the tranny is too cold the cars operating system looses it mind and goes completely bonkers. Subaru obviously did no cold weather testing. We have had 2 failures in cold weather. It only happens at temperatures well below the-20F range. The first case happened last year while driving after being stopped for a couple of hours. Everything seemed normal and then suddenly several warning lights came on and all of the safety systems and the eyesight system shut down. The car ran and drove, but none of the associated systems would work. No traction control. No cruise control. Several other systems. The only solution was to disconnect the battery and get this rolling computer to reboot. This was a temporary fix as the condition repeated itself although the car was driveable but with none of the safety systems operational. This year we were out in cold weather, -25 to -32. We went to a place to have lunch and when I went to restart the car the app failed to do so. So I put on all my gear and went out to start it manually. It would not start and all the warning lights were on and the radiator fan was running full tilt at -25F with the car off. I tried twice to get it going by pulling the battery cable to get it to reboot. Evidently when this happens you must leave the battery disconnected long enough (about 5 minutes) for all the capacitors in the electronics to drain. Once restarted, the car drove normally but we did not shut it down for any reason for the rest of the day.
NHTSA complaint #11704751 — an unverified report by a vehicle owner.
When driving below 5 mph—forward or reverse—with the rear passenger door fully open, the only alert is a small “door ajar” icon on the dash. This icon is the same drawing, whether the door is completely open or semi-latched, so the driver has no way to know the extent of the hazard. Without an additional warning, an fully open door can strike pedestrians, poles, garage, or other vehicles, and any passenger seated beside it is needlessly exposed to injury.
NHTSA complaint #11698561 — an unverified report by a vehicle owner.
The driver side rearview mirror shakes and vibrates under normal driving conditions. This is distracting and nauseating to the driver. This is a safety issue because this mirror is used for checking for vehicles before changing lanes.
NHTSA complaint #11686992 — an unverified report by a vehicle owner.
Trunk would not open. Only way to open was to pop open the internal latch access port and switch the latch open with a screw driver. Trunk would not open with key fob, rear handle, or buttons on driver side dashboard.
NHTSA complaint #11685392 — an unverified report by a vehicle owner.
All of a sudden my vehicle accelerated after placing it in reverse with my foot on the brake. There was a screeching sound and I immediately shifted into (at least) Park. In attempting to exit my garage again, it repeated the same events. I parked the car and never did leave my residence. No dash lights etc. I am afraid to now drive this vehicle. This occurred several days before this mentioned event, but responded OK the 2nd time. In May of 2025 I actually crashed into a car across the street from this happening. Others are definately at risk. This actually occured twice during my 1st year of ownership, but was overlooked until now. I intend to take it to my dealer and have my vehicle inspected. There were no warning lamps etc.
NHTSA complaint #11671503 — an unverified report by a vehicle owner.
The passenger-side mirror on my Ascent has been damaged and removed since March 2025. I paid for the part on April 8, 2025 and was told it would arrive in a few weeks. As of July 1, 2025, the part has been delayed until August. The mirror is critical for visibility and safe operation. My wife drives this car daily with our infant. Subaru has refused to provide a rental, and the car is unsafe. I’ve contacted Subaru Corporate with no resolution, despite my continued persistence in contacting them through visits to their dealership in Plano, TX and several emails.
NHTSA complaint #11671020 — an unverified report by a vehicle owner.