41k miles P26A3 P26A5 ****Eyesight disabled*** ***Forward collision disabled *** Failed TCV and dealer will not cover because warranty period is over.
2020 Subaru Forester
Owner reports · Recalls · Investigations
More warning signs than most Forester years
Owner complaints for the 2020 Subaru Forester are substantially higher than the model-year median of 131.
About this comparison →How this year compares
Owner complaints by model year
Compare all Forester years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
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When problems were reported
Mileage at the reported incident
272 reports with mileage · 328 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Visibility/wiper. Review the 252 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 101 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 79 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
79 reportsWhile driving, most of the dash errors lights lit up- alerting me that the Eyesight Warning, RAB ( Reverse Auto Braking) and other safety functions were disabled. The Check Engine light was on and a flashing S next to it. Cold Engine light was illuminated as well. Dealer diagnosed with a faulty Thermal Control Valve, which some…
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While driving, most of the dash errors lights lit up- alerting me that the Eyesight Warning, RAB ( Reverse Auto Braking) and other safety functions were disabled. The Check Engine light was on and a flashing S next to it. Cold Engine light was illuminated as well. Dealer diagnosed with a faulty Thermal Control Valve, which somehow disabled all safety features. This is a common failure of Subarus and a recall is needed.
The thermo control valve malfunctioned causing the check engine light to come on which shut down all the safety features in the vehicle including the front eye sight camera, blind spot warning, the rear automatic braking, lane departure warning, adaptive cruise control, and lane keeping assistance.
The contact owns a 2020 Subaru Forester. The contact stated that the auto START/STOP feature was malfunctioning. The contact stated that upon coming to a complete stop, the engine turned off, but failed to restart after releasing the brake pedal. The message "Engine Disabled" was displayed. The contact depressed the brake pedal …
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The contact owns a 2020 Subaru Forester. The contact stated that the auto START/STOP feature was malfunctioning. The contact stated that upon coming to a complete stop, the engine turned off, but failed to restart after releasing the brake pedal. The message "Engine Disabled" was displayed. The contact depressed the brake pedal and pressed the Push to Start button and was able to continue driving. The contact stated that the failure had been recurring. The dealer was notified of the failure and advised the contact to manually deactivate the auto Start-Stop feature by pressing a button. The contact stated that she followed the dealer's instructions; however, the feature had been engaging independently and the failure had been recurring while at a complete stop. The vehicle was taken to the dealer to be diagnosed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 39,000.
Daughter was driving vehicle on the morning of September 15, 2023, when smoke came from under hood. Immediately pulled over and engine was engulfed in flames. Got out of vehicle and moved a safe distance away as glass started to break and fire department arrived on scene. Picked up vehicle on September 12, 2023, after having the…
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Daughter was driving vehicle on the morning of September 15, 2023, when smoke came from under hood. Immediately pulled over and engine was engulfed in flames. Got out of vehicle and moved a safe distance away as glass started to break and fire department arrived on scene. Picked up vehicle on September 12, 2023, after having the thermal control valve replaced (warranty) but after doing research there are other components that also had to be replaced (fuel line, etc) as part of this repair. Noticed there have been other vehicles with recall due to thermal control valve just nothing on the Subaru Forester. Completely traumatized as the vehicle was gone in a little over 3 minutes. Have been in contact with Subaru but no resolution on what they believe caused the car to catch on fire. Did authorize them to get “black box” on September 29, 2023.
The thermo control valve malfunctioned causing the check engine light to come on which shut down all the safety features in the vehicle including the front eye sight camera, blind spot warning, the rear automatic braking, lane departure warning, adaptive cruise control, and lane keeping assistance. The check engine computer read…
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The thermo control valve malfunctioned causing the check engine light to come on which shut down all the safety features in the vehicle including the front eye sight camera, blind spot warning, the rear automatic braking, lane departure warning, adaptive cruise control, and lane keeping assistance. The check engine computer readout diagnostic trouble code was P26A5 "Engine Coolant Bypass Valve "A" Position Sensor Circuit Range/Performance". The vehicle was taken to a Subaru dealer who found the thermo valve performance was out of spec. This vehicle has not been recalled although the manufacturer replaced the part in 2021 vehicles acknowledging the valve was faulty. Because of the mileage on my vehicle, it was not covered under the warranty although many have been replaced under the manufacturer's warranty due to the failure of this valve under the 60,000 mile warranty. I believe this should be a recall item for others who experience this issue.
I’ve owned my Subaru forester for over a year now. About 6 months ago while getting off an exit and at a light, when I went to accelerate my car died. All lights came off and no power to vehicle. I was able to restart and drive home. Called the dealer took it in and paid almost $2k for repairs. Today the same thing happened on t…
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I’ve owned my Subaru forester for over a year now. About 6 months ago while getting off an exit and at a light, when I went to accelerate my car died. All lights came off and no power to vehicle. I was able to restart and drive home. Called the dealer took it in and paid almost $2k for repairs. Today the same thing happened on the turnpike in stopped traffic. This could have been a bad accident.
The car dies when it stops for a traffic stop. Sometimes it starts again and and sometimes it does not. It does not do it when the air is on. People honk at you in traffic if you do not start right away. I thought there was a recall on Subarus for same which is why I never bought one. The vehicle has been inspected. It also unlo…
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The car dies when it stops for a traffic stop. Sometimes it starts again and and sometimes it does not. It does not do it when the air is on. People honk at you in traffic if you do not start right away. I thought there was a recall on Subarus for same which is why I never bought one. The vehicle has been inspected. It also unlocks itself sometimes after I lock it.
While driving on the highway, the engine suddenly stopped and several warning lights appeared on dash. Driver was able to coast to shoulder but could have been a bad accident. It happened again on the way to dealer service center. Dealer reproduced the problem and identified it as a faulty thermo control valve. Dealer fixed it u…
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While driving on the highway, the engine suddenly stopped and several warning lights appeared on dash. Driver was able to coast to shoulder but could have been a bad accident. It happened again on the way to dealer service center. Dealer reproduced the problem and identified it as a faulty thermo control valve. Dealer fixed it under warranty. Review of web reports makes this seem like a common problem with various Subaru automobiles.
The contact owns a 2020 Subaru Forester. The contact stated that while driving approximately 70 MPH, the accelerator pedal was depressed, and the vehicle started to lose motive power. The check engine warning light was illuminated. The vehicle was steered to the side of the road where the vehicle then stalled. The vehicle was re…
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The contact owns a 2020 Subaru Forester. The contact stated that while driving approximately 70 MPH, the accelerator pedal was depressed, and the vehicle started to lose motive power. The check engine warning light was illuminated. The vehicle was steered to the side of the road where the vehicle then stalled. The vehicle was restarted approximately 15 minutes later. The vehicle was towed to a dealer where it was diagnosed that the thermal control valve and electric water pump needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 13,000.
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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