Subaru Ascent harsh shifting problems

Filed Nov 13, 2025 · Steering, Wheels · VA

My 2024 Subaru Ascent developed a recurring clunk/thump noise from the steering system during low-speed turning (10–15 mph) and when turning the wheel at a stop. The noise was present daily and worsened over time. I took the vehicle to two Subaru dealerships. Sterling Subaru dismissed the steering noise completely and stated they could not duplicate it. Dulles Subaru also initially dismissed the issue. Only when I returned to pick up the vehicle and insisted on demonstrating the noise did their technician acknowledge it. They compared my vehicle to another Ascent on the lot and confirmed the noise was abnormal. Dulles then replaced the steering gear box assembly (steering rack) under warranty. This confirms there was a mechanical defect in the steering system. Before this repair, I also reported excessive inner-edge wear on both front tires. The technician documented “excessive wear on both front inner tires” and recommended replacing all four tires and performing an alignment. Inner-edge wear on both front tires is not caused by lack of rotation—it is consistent with misalignment or steering geometry deviation, which matches the confirmed steering defect. Subaru America has refused to replace the damaged tires even though the tire manufacturer (Falken) stated in writing that irregular wear caused by a mechanical defect is the vehicle manufacturer’s responsibility. Safety concern: A defective steering rack caused abnormal steering behavior and front-end geometry issues, which led to rapid inner-edge tire wear. If unnoticed, this can result in loss of steering control or a tire failure at highway speeds. Both dealerships initially dismissing the issue is also concerning. I am filing this report so the federal safety agency can track potential steering-related defects and resulting tire safety issues on the 2024 Subaru Ascent. I can provide service records, photos, and Subaru correspondence upon request.

Filed Mar 12, 2025 · Suspension · VT

Extreme rattle/clunking driving over bumps especially on dirt roads. Seems to be many people are having this issue. I know of another co worker who has a 2020 ascent making the same noise. Apparently there is a strut issue

Filed Jan 17, 2025 · Transmission · GA

Yes, inspect it. Bought 2019 Subaru Ascent from Carvana, March of 2022. 5 months later, the transmission started to low screech and hard shift. I took it to Osteen Subaru dealership. They test drove it, then reprogrammed transmission. Same day while leaving their parking lot, hard shifted and slighty screeched yet again, reprogrammed again. On my way home that day, did it again, problem persisted. Called and told them, asked them about replacing transmission, was told I had to go on waiting list because recall was released yet. Started getting even worse by November 2022. They ended up keeping it for 2 and a half months. Got it back in January 2023. Was told the problem was torque converter lockout. Subaru Company began to have recalls on their CVT Transmission & still refused mine. My VIN # was/and is included in the lawsuit for the extended warranty, & I was still under the manufactures warranty for Drivetrain when this first happened. The last I took it to the dealer I went to a dealer and hr away, was told they wont touch. Subaru of America told me they won't fix either because was out of warranty @100467miles. I explained I went to the dealership several times under 100k miles as it states my mileage on the Service invoices she was looking at on her screen. I have papers being in their shop still under man. warranty. They still refuse. My car is part of the lawsuit about transmission & still won't fix their recalled transmission. This vehicle has been to dealer 4 times since built with this same issue and not fixed. The service manager at dealership named Joe, told me the screeching is normal. It was not doing that when I first bought. It's my only transportation and still making payments on it. Subaru refuses to rectify their recall problem. I have kids & unsafe SUV. The car was great then without cause transmission stops working. Subaru of America won't help or take responsibility. Highly disappointed in the brand

Filed Jan 13, 2025 · Acceleration · CO

The vehicle was being driven on a public road, going roughly 45mph. I felt a very harsh studder/clunk and completely lost responsiveness from the accelerator. There was no throttle response even pumping the pedal all the way to the floor. I was able to coast to a parking area and make a safe stop. Once I was stopped, I turned the car off, back on again, and it got me the rest of the way home. This was the most severe instance of the problem, but both primary drivers of the car have experienced the accelerator going unresponsive at different times. Since this was a severe safety related concern, we took the car in for service at the dealer, but were told they were unable to reproduce the problem and did not make any repairs. We provided the dealer with a video we captured toward the end of the latest incident, but they haven't been able to find any cause. There were multiple warning lights on the dash, but no codes were stored. We did have another warning light for a brake system error, but there was no code stored and the dealer was unable to located the source of a voltage anomaly in the parking brake system. We've taken it in to another dealer service center for additional diagnostics but the original shop is refusing to provide the complete details of any diagnostics and corrections they have made, so we don't have the original data that was pulled from the car.

Filed Oct 20, 2024 · Transmission · MA

The CVT experienced a catastrophic failure, later identified as "the chain" by a Subaru dealer mechanic. The night before the incident, the transmission "slipped" and made a metallic clunking noise when merging onto a highway. On the day of the incident, the transmission failed completely after turning onto a roadway from a stop sign. No forward or reverse power was available. Had the transmission failed the night before while merging onto a highway, with little ability to pull out of the roadway, we certainly would have been in danger. The vehicle has been inspected by the dealer and the transmission failure confirmed. The transmission "stuttered" for several months previously while accelerating, though not consistently.

Filed Aug 15, 2024 · Suspension · IL

There is a knocking or clunking noise at low speeds during and after turning in the front driver's side of the vehicle. Car has 17,500 miles on it. Assembled inspection suggests that tie rod (inner and outer), ball joint, stabilizer links are all intact and functioning properly. No loose components or fasteners. All bushings appear firm and intact. There is an apparent [XXX] ), though seemingly unreported issue with the front-end suspension system that dealerships and service techs can't seem to diagnose. At best, noises go away for a period of time then return. If it's an issue with a wear component then it may be that the OEM parts are deficient for use on this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 15, 2024 · Suspension · CA

A clunky noise coming from the front wheels whenever we encountered any sort of bump.

Filed Jul 27, 2022 · Transmission · OH

I have a 2021 Subaru Ascent Premium with 6,000 miles. The Transmission or CVT feels odd every time i shift from Park to Drive or Reverse i feel a hard clunk additional to that every time i get in the Highway and add some RPMs to the SUV the CVT shifting feels Hard more likely like i m driving a Manual vehicle something that is not suppose to happen or feel that way. I took it to the dealer and they only found that the part that press tp brake to shift was not lubricated ( no clue the real name) and they also mention that is how the CVT works something that i don't think so and they also mention to wait for a recall.

Filed May 26, 2022 · Transmission · IL

The Transmission on the vehicle was exhibiting excessive noise when shifting from park to drive and was progressively becoming undrivable with odd shifting, hard shifting, RPM fluttering, and chugging. It made progressively louder audible sounds and squeaks during cold starts when shifting from park to drive. It was brought in for service and the original transmission was replaced due to metal shavings found in the case, a direct indication of failure, with no warning lamps or codes from the onboard computers. After approximately 500 miles, the replacement transmission is exhibiting the same progressively worse drivability issues and transmissions sounds. I returned to the same dealership for service and they said they did hear the issue but needed a field technician to diagnose the issue. I have contacted the servicing dealership and Subaru America's directly and after 6 weeks, they have continued to tell me they will try to get someone to look at it, but will not set a date or time. They have refused to provide any written documentation around the issue and will not issue a repair order stating the vehicle is operating normally even after directly requesting it from both the dealer and subaru america. They have stated the documentation is internal only and cannot be shared with the consumer. The replacement transmission has 3,000 miles at this point and is exhibiting the same progressive failures. The vehicle feels unsafe because the transmission behavior is now unpredictable and erratic.

Filed Apr 6, 2020 · Suspension · 300 miles · WA

New 2020 subaru ascent limited. Heard clunking or weird sound from front suspension/struts on bumpy road or potholes.