564 of the
8,703 complaints filed about the Subaru Forester
are about the transmission —
6% of everything owners reported.
The worst model year for it is 2015.
564
Complaints
6%
Share of all complaints
52
Crashes
3
Fires
Transmission & Drivetrain complaints by model year
This 2020 Subaru Forester has experienced repeated failures involving the Auto Start/Stop system. When stopped in traffic, the system shuts the engine off as designed, but on multiple occasions the engine has failed to restart normally when the driver needed to proceed. This has left the vehicle unable to move in active traffic and created a serious risk of collision. The failures have occurred in highly dangerous situations, including a busy [XXX], a major [XXX] intersection, and most recently while entering a freeway. In these incidents, surrounding drivers had to brake hard to avoid striking the disabled vehicle. The occupants reasonably feared a serious collision, and the events were potentially life-threatening. The battery was replaced, but the Auto Start/Stop no-restart condition later occurred again, so battery replacement did not resolve the problem. Subaru issued Technical Service Bulletin 16-147-24 on XXX for 2019-2021 Foresters. The bulletin addresses TCM reprogramming related to engine behavior during Auto Start/Stop restart and instructs technicians to reprogram the TCM when the described symptom is reported. However, the bulletin’s warranty section provides reimbursement under the Basic New Car Limited Warranty. For a 2020 vehicle, the original 3-year/36,000-mile basic warranty would ordinarily have expired before this 2024 bulletin was issued. The vehicle is now being evaluated by an authorized Subaru dealer. The condition is intermittent and dangerous because the driver cannot know whether the engine will restart when movement is required. The vehicle is available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11758094 — an unverified report by a vehicle owner.
When I drove the car, All most all light on the dashboard are on onthe road, and when I stop and tried to go, the car is somewhat not controled. I immidieatly went to dealership and dignosed P2764 CVT balve problem. And they add wheel bearing is problem. Subaru noticed these problems but my 88,278 mile 2016 forester has all the lights on and it was very scared and it took 4400 dollars for fixing.
NHTSA complaint #11754563 — an unverified report by a vehicle owner.
The contact's spouse owns a 2015 Subaru Forester. The contact stated that while driving from a complete stop or at various speeds on several occasions, the vehicle hesitated and failed to accelerate as intended. The Hill Assist and Automatic Transmission Oil Temperature warning lights flashed, and the ABS, Traction Control, and VDC warning lights illuminated. The vehicle was steered to the side of the road and turned off to cool down on each occurrence. After approximately 45 minutes, the vehicle was restarted and was driven to the residence. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,000.
NHTSA complaint #11748724 — an unverified report by a vehicle owner.
The shift guide plate in my 2017 Subaru Forester failed, causing the ignition key to become stuck and not release when the engine is off. The component is available for inspection upon request. The failure was confirmed by a Subaru dealer, who diagnosed the defective shift guide plate and provided a repair estimate of $685.23. The safety risk is significant - an inability to remove the key from the ignition can prevent the driver from securing the vehicle and creates confusion about whether the engine is truly off. There were no warning lamps or messages prior to the failure. The problem presented suddenly and has been reproducible consistently since it first appeared. This is a known manufacturing defect. Subaru acknowledged it by issuing an 8-year extended warranty extension (TSB 16-112-18R) specifically covering this component. My vehicle has only 71,000 miles - well below average for a 9-year-old vehicle - and falls just outside the 8-year window. I contacted Subaru of America requesting goodwill assistance, which was denied with no explanation beyond the warranty expiration. I am filing this complaint to establish an official record of this defect and the manufacturer's failure to stand behind it.
NHTSA complaint #11748646 — an unverified report by a vehicle owner.
My 2021 Subaru Forester has a recurring, worsening defect in the Idle Stop/Start (ISS) system that creates a stalling hazard. When ISS shuts the engine off at a stop, the engine intermittently fails to restart when I try to move again. It cranks progressively slower, warning lights illuminate, a continuous alert sounds, and the vehicle cannot proceed until I shift to Park and restart manually. This has left me immobile in live traffic at lights, stop signs, and mid-turn. The system also attempts to shut down in unfavorable moments, such as mid-turn, or as I am already releasing the brake (meaning it was depressed only lightly or briefly); it then tries to restart while still mid-shutdown, producing a pronounced shake. This is not a battery-charge problem. It has occurred even when the battery tested above its rated cold-cranking amps, and after each failure the engine restarts smoothly by manual start, indicating the starter, engine, and fuel systems function normally. I raised this before 2024, but it was not recorded until May 2024. At that visit the dealer performed the TCM reprogramming in Service Bulletin 16-147-24 (Forester, auto start/stop engine speed drop on restart) plus an ECM update. A later visit added another ECM update. A dealer has now identified yet another TCM reprogramming, quoted for a fee. The failure has persisted across all of these updates. Dealer staff acknowledge repeated customer complaints with these exact symptoms and say there is no known effective fix. Because ISS cannot be permanently disabled through any factory control, I must remember to disable it manually every drive to avoid a restart failure in traffic. The vehicle is available for inspection. This is an ongoing, unresolved safety defect that repeated manufacturer software remedies have failed to correct, and it can leave the vehicle disabled in live traffic.
NHTSA complaint #11748058 — an unverified report by a vehicle owner.
The contact owns a 2022 Subaru Forester. While the contact's wife was driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with a failed inhibitor switch. The contact was informed that the inhibitor switch needed to be replaced. The vehicle was being repaired. The contact was informed that parts were on back order. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 51,000.
NHTSA complaint #11746009 — an unverified report by a vehicle owner.
2017 SUBARU FORESTER WITH 40,000 MILES, REAR WHEEL BEARINGS AND PLATE ARE BAD. $2100.00 TO FIX. SEEMS A LITTLE EARLY IN MILEAGE FOR SUCH AN EXPENSIVE REPAIR. I HAVE READ ABOUT BAD REAR WHEEL BEARINGS AND PLATE FROM SEVERAL PEOPLE.
NHTSA complaint #11736974 — an unverified report by a vehicle owner.
Vehicle stopped at light,auto start stop engine off,stepped on gas to go engine didn’t restart,my passenger and I jumped out and grabbed a Noco GB40 jump box I carry and jump started car,we were on a road trip out of town and could not wait for the dealership so finished our trip with the auto start stop turned off and if we had a problem starting used the jump box.
NHTSA complaint #11735341 — an unverified report by a vehicle owner.
I was pulling into a parking spot almost stopped when the vehicle suddenly surged forward. I slammed on the brake and put the car in reverse since it had driven upon the walkway. This happened earlier today and I plan to have it checked out as soon as possible . Never have had this problem before, no warning lights or messages.
NHTSA complaint #11735015 — an unverified report by a vehicle owner.
Vehicle: 2015 Subaru Forester Mileage at Failure: 85,000 miles Component: Powertrain – CVT Transmission My 2015 Subaru Forester is experiencing a premature safety‑related CVT transmission failure at approximately 85,000 miles. The vehicle developed a pronounced whining noise that increases with vehicle speed, consistent with internal CVT bearing or pulley failure. This is a known defect pattern in Subaru Forester CVTs and is not related to maintenance or wear. The noise is continually progressing and the risk of sudden catastrophic failure makes the vehicle unsafe to operate. An authorized Subaru dealer and the District Parts & Service Manager (DPSM) both confirmed that the CVT has failed and requires full replacement. This failure occurred well within Subaru’s extended CVT warranty mileage limit of 100,000 miles, and matches the defect pattern Subaru acknowledged when it extended CVT coverage nationwide for this model. However, Subaru is refusing to replace the CVT due to the 10 calendar year extension expiration. Subaru’s maintenance schedule for this vehicle does not require any CVT fluid replacement interval, so there is no missed maintenance that contributed to the failure. A failing CVT creates a safety hazard due to to the risk of sudden loss of power, hesitation, or inability to accelerate. I am filing this complaint so NHTSA is aware of this premature CVT failure and the associated safety concerns of SOA's refusal to replace the CVT under their extended warranty.
NHTSA complaint #11728666 — an unverified report by a vehicle owner.
The vehicle will move from park to drive and reverse while the engine is off. It moves an good distance and only flashes a red light on the dash with a sound that the engine is not on. It is a huge safety concern and has happened multiple times. Also when moving it into park and taking your foot off the gas, shutting the car engine off, it has moved forward.
NHTSA complaint #11725715 — an unverified report by a vehicle owner.
The contact owned a 2021 Subaru Forester. The contact stated that while driving at approximately 4 MPH and slowing to park, the vehicle accelerated on its own. The contact stated that the vehicle drove out of the parking lot and crashed into a wall. The contact stated that the air bags deployed and that the vehicle had then shifted into reverse (R) and driven out away from the wall and crashed into a parked vehicle and stopped. The contact stated she was unaware of any warning lights. The contact stated that she had 1 passenger in the front seat and 2 passengers in the rear seat. The contact stated that everyone was shaken and achy, but no cuts or other injuries. The contact stated later that the passengers went on their own to seek medical attention. The contact stated that the passenger front bumper, hood, and wheel well were damaged, and the rear bumper on the passenger side had damage from the crash with the parked vehicle. The contact stated that the other vehicle had minor damage to the right rear quarter panel. The police were called and issued a report. The vehicle was towed to a collision repair shop, but had not been repaired. The vehicle had not been diagnosed for the independent acceleration and reverse failures. The contact stated that her insurance provider had not yet declared the vehicle a total loss. The manufacturer was not informed of the failure. The failure mileage was approximately 30,000.
NHTSA complaint #11723858 — an unverified report by a vehicle owner.
After traveling for unknown number of miles on repeated occasions, arriving at the destinations to the smell of burning oil. Smell was evident while driving as well. Subaru was able to diagnose this issue to a leaking CVT pump seal causing CVT fluid to leak and run down on top of the transmission pan onto the hot exhaust system. Subaru has acknowledge this is an issue back in 2016 due to the sealant us from the factory. Customer was quoted $1400 for the repair this known issue. Vehicle had 90,000 miles at the time of occurrence.
NHTSA complaint #11719619 — an unverified report by a vehicle owner.
The electrical system fails, and the battery is not charging sufficiently. When the auto start/stop engages, the car does not restart in traffic. Requested a battery test at the dealership in May 2025; was told it could not be done that day because it would require leaving the dealer service shop. Eventually, the electrical system became unstable, and the car stopped in traffic on 11/07/2025. Replaced battery following OEM specs. In February 2026, symptoms reappeared with a new battery failing on 02/15/2026, resulting in all saftey systems failing in traffic when auto start/stop enages.
NHTSA complaint #11718775 — an unverified report by a vehicle owner.
I bought a used 2015 subaru forester with 117,000 miles from an auto shop/used car dealer in March of 2024. In September of 2025, 11,000 miles of driving later, a bunch of lights came on my dash. Check engine, traction control, ABS, at oil temp, and incline assist. I took it to Autozone to get the codes read and the part it suggested was the transmission oil pressure sensor. I then took it to a trusted mechanic who said they weren’t able to get the lights to turn back on and told me to come back when the lights reappeared. In December of 2025, the lights came on and they were on long enough to take it back to the mechanic. The mechanic told me that it looked to be the transmission valve body and recommended a local transmission shop. I took it there and the mechanic told me there was a speed sensor that was failing and the transmission and valve body would need to be replaced. He said that they don’t sell the speed sensor anywhere and it is impossible to obtain. I got quoted 9,100 to fix my car (I originally paid around 8,500 for it). I was told it would not be worth my time or money to fix the transmission. The transmission guy told me that Subaru cvt transmissions are horrendous and to take this is a lesson to never buy a Subaru. I heeded to this advice and traded her in for $2000 towards a 2010 rav4. Additional info: It had a rebuilt title and had been in an accident before I got it. Lived its entire life between kentucky and tennessee. I replaced the engine oil and filter every 4,000-6,000 miles. Tire treads were very mismatched for the time I had it (almost two years) which I was told by a subaru dealership can damage the transmission. Back tires had significantly lower tread than front. I had front left lower control arm, rear spring coils, brake switch lamp, and one of the battery terminals replaced during the time I had it. My TPMS light was always on. My front right headlight went out frequently. My brake light assembly also broke and wasn’t worth fixing
NHTSA complaint #11713143 — an unverified report by a vehicle owner.
While at a Stop as the engine turns off and awaits decompression of brake to turn on again vehicle moves forward bit, then the engine shuts down while in drive (stalls) had a vehicle hit me in rear but luckily I had my trailer hitch on because it saved me from body damage . I had to place in park and restart this has happened several times before and I’m kinda nervous and makes my wife nervous when stopping at lights or stop signs it might turn off in the middle of the intersection. When this occurrence happens all dash lights pop up … I checked engine with code reader after the incidents but it doesn’t give out any info on what could possibly be happening. I had the Dealership change the Thermo control module in 2025 but these occurrences has happened before and after the TCM replacement.Having the dealership check is like wasting my time and money because they aren’t able to pinpoint the cause without a code . There has to be a problem somewhere in the system it’s just that the dealership in Hawaii has no clue ..
NHTSA complaint #11711684 — an unverified report by a vehicle owner.
REPORT OF FAILED RECALL REMEDY (RECALL 19V-149 / WUE-90) My 2015 Subaru Forester experienced a total recurrence of the defect addressed in 2019. The vehicle became trapped in 'Park' intermittently on several occasions before remaining immobilized. During one incident, the manual shift-lock override failed to function. While the brake lights functioned during these incidents, the failure to shift is a documented symptom of a failing brake light switch. I had the switch replaced by a technician who initially suggested a full shifter assembly replacement. However, replacing ONLY the brake light switch immediately and permanently resolved the issue. This confirms the recall-related part was the point of failure. Subaru of America was notified but declined to acknowledge this as a failure of the safety remedy. I am also reporting intermittent 'ghost' activations of the right turn signal stalk.
NHTSA complaint #11708987 — an unverified report by a vehicle owner.
On October 3, 2023, I purchased a used 2018 Subaru Forester (VIN: [XXX] ) from Hengxin Auto Group, 210 39th St, Brooklyn, NY 11232, for about $19,500 including tax and fees. The dealer stated the mileage was 65,800 and printed that number on the contract. However, both the official NY DMV Title Record and the Carfax report showed 86,588 miles at the time of sale. This clear discrepancy proves the dealership intentionally rolled back or misrepresented the odometer reading. Later, the title was branded “mileage unknown.” After purchase, many severe issues appeared: chassis instability, transmission jerking, loud engine noise, high oil consumption, A/C malfunction, battery failure (replaced at my own cost), and worn tires that left me stranded. The dealer had advertised the vehicle as “excellent condition, only minor scratches,” which was completely false. I repeatedly contacted the dealer, but they only made partial chassis repairs and ignored all other problems. I paid significant repair expenses and eventually had to trade in the car on April 29, 2024, at Romano Toyota for $12,530.24, while still owing $13,705.58, resulting in a direct loss of about $9,283.78, not including additional repair and transportation costs. On October 2, 2025, I sent a formal demand letter to Hengxin Auto Group requesting compensation for odometer fraud and vehicle misrepresentation. The letter was received on October 9, but no response or resolution has been offered. The dealer’s conduct involves clear odometer fraud and nondisclosure of safety-related defects. I respectfully request NHTSA to investigate this case and take appropriate action to prevent similar consumer deception and safety risks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11695152 — an unverified report by a vehicle owner.
- *Incident 1 (2023):* While driving, my vehicle suddenly stopped while in drive gear, accompanied by a high-pitched alarm and multiple engine service lights. It took over 30 seconds to shift into park and restart the vehicle. The incident occurred at an intersection, and I was fortunate to avoid any collisions. - *Incident 2 (September 2025):* The same problem recurred on two separate occasions- AFTER CERTIFIED REPAIRS. The vehicle came to a complete stop while driving uphill at a decelerated speed, and also while stopped at an intersection. In both instances, the gear was in drive, and the vehicle shut down completely, displaying engine service lights. *Previous Repairs:* - *TCV Replacement:* The Thermo Control Valve was replaced under warranty due to a faulty issue affecting the EyeSight system. - *Battery Replacement:* The battery was replaced under warranty in 2023 after the initial incident. Whats concerning is that my dealer said to have found an “after market” appliance hooked up. This said feature was placed by certified subaru dealership when vehicle was purchased. This said item was never identified as to causing the said issue. Which raised even more safety concerns.
NHTSA complaint #11691148 — an unverified report by a vehicle owner.