Which parts fail
Components named in complaints (power windows, windshield, wipers, mirrors, sunroof).
Owner reports
Selected complaints filed with NHTSA by 2024 Subaru Ascent owners, lightly cleaned up (personal details are redacted by NHTSA).
I am a current lessee of a 2024 Subaru Ascent. I leased this vehicle starting July 27, 2024. My lease ends on July 27, 2027. I live 60 miles away from the dealership and only did a test drive around town. The minute I got on the freeway after leaving the dealership the night I leased the vehicle, I noticed the drivers side mirror heavily vibrated and I remember thinking how strange it was to have the headlights from the cars behind me look so shaky in the mirror. I took the car to the service department on August 9, 2024 where they logged a "driveability diagnostic" and "MPI." My reason for that appointment was the side mirror vibrations. It is bad during the day, but not as noticeable and very distracting when driving at night. …
Driver side mirror glass shakes constantly at any speed. This has been reported to the only dealership around my area. Mirror was replaced once by Service Dept, but only the mirror housing (not the glass). The mirror shakes the same or worse now. I went back to the dealership within minutes of driving my car off the lot after the replacement and told them the issue was not fixed. I was told to reschedule. I took another day off work to bring the car back to them, only to be told there is nothing else they can do. They keep saying the passenger side mirror shakes too, but it doesn't- at all. I keep telling them this. This mirror issue presents a huge safety hazard, as it is unreliable and useless to use it. It is also a significant distraction while driving. There were no warnings on the car about this mirror issue. …
The driver's side mirror vibrates excessively, especially at highway speeds, to the point where it makes me nauseous to use it. I've asked my dealer to look at it, and I've even upgraded to the night-dimming mirrors, but the vibration still occurs. I am not comfortable using this mirror while driving. I am the original owner, and primary driver, of this vehicle, and it has had this problem since I bought it in April 2024. The car now has more than 14,000 miles on it, and the vibration is starting to affect my driving habits. I'm not using this mirror the way I would under normal circumstances, and it's just a matter of time until I miss someone in my blind spot due to this issue. Please encourage Subaru to address this problem. Other Ascent owners have complained about this, so I know it is not just an issue with my particular vehicle. Thank you!
Driver side window will not go up on command. It gets stuck and has a mind of its own. This started in August of 2024. This is a safety hazard, as I live in Alaska with very cold temperatures and blowing snow. This was reported to the only available dealership in my area. I even showed the Service Advisor a video on my phone that I took of the window not responding to the controls. I was told the window is just dirty and to wipe the rubber strips/seams down with alcohol pads. I've done that several times now and it makes no difference. One morning last week, I spent 10 minutes in the rain on my way to work trying to get the window to go up. This is a huge safety hazard and must be fixed.
The Driver's Door Mirror, has excessive shaking. Bought it to the Subaru dealer where it was purchased, they tried to replace it and the mirror was still shaking. Shop Manager informed me her notified SOA, no fix at this time. Was informed because of slight change to body style and mirror size it has this issue on the 2024 models. It causes the inability to use the mirror clearly on that side of the vehicle. It causes a bit of dizziness for me trying to decipher what I'm looking at. It is a useless but important item on the car for driving. There was no invoice given for the first date of service on 4/01/2024.
Driver side mirror shakes/vibrates excessively sometimes to the point of distorting images seen on the mirror. Many other users are reporting this issue with 2024 and 2025 Subaru Ascents. The issue has been there since the vehicle was purchased brand new. There are threads on reddit, facebook, and the Subaru Ascent forum, where many owners have reported this issue. Below is a link to a thread in the Subaru Ascent online forum. [redacted]
Noted the driver side mirror produces a shimmying image (glass appears to vibrate) at highway speeds and when going over bumps in road at lower speeds. This produces an unsafe vision of items out of the drivers side view mirror. Subaru replaced the glass and it actually got worse. So Subaru replaced the mirror housing on the driver side however the vibrating images are still there. Passenger side view mirror is unaffected. This creates a hazard as the view in the drivers side view mirror is distorted.
The driver-side mirror vibrates and shakes excessively on rough roads or at highway speeds, making it difficult to use, especially at night. In contrast, the passenger-side mirror is stable at all speeds with minimal to no shaking. The dealer's service department confirmed the problem and replaced the mirror but was unable to fix it, stating that nothing else can be done. The driver-side mirror has had this issue since the car was delivered from the dealer.
Driver's side mirror vibrates at highway speeds 55+ mph, so much so that images in the mirror are blurry and difficult to clearly make out distance and speed of other vehicles. Vehicle has not yet been in for service, but is scheduled at the end of October for the 6K mile service. I'll report it then and see what the dealer says. I've seen that this is reported by other owners without resolution, and now there is also a class action lawsuit filed in TX.
Driver side mirror has vibration that increases with speed. At highway speeds, it is difficult to safely see the lane next to you, especially if there is a vehicle behind you with their headlights on. The vehicle's mirror glass and housing were replaced and the vibration remains. There is no observable vibration with the passenger side mirror. Was advised by a local dealership that there is no more they can do to eliminate the vibration.
Window & Wiper complaints in other Ascent years
Frequently asked questions
How common are window & wiper problems on the 2024 Subaru Ascent?
NHTSA has 31 complaints about the windows, wipers & sunroof of the 2024 Subaru Ascent, 62% of the model year's 50 complaints. The component named most often is rearview mirrors/devices › exterior (22 mentions).
Is there a recall for 2024 Subaru Ascent window & wiper problems?
No. NHTSA lists no windows, wipers & sunroof recall for the 2024 Subaru Ascent, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.