2020 Subaru Forester fuel system problems

Filed Oct 26, 2026 · Driver assistance, Engine · FL

On XXX, while driving my 2020 Subaru Forester Sport (VIN [XXX]) at approximately 35 mph on [XXX], the check engine light came on and EyeSight, adaptive cruise control, and pre-collision braking were disabled / other warning lights appeared / engine temperature issues. A diagnostic scan showed code [P2682 / P26A3 / P26A5], and the Thermo Control Valve (TCV) was found to be defective. Mileage at failure: 33,297. Subaru has acknowledged this defect in Technical Service Bulletin 09-119-24, which extends warranty coverage for the TCV on 2019–2021 Foresters to 15 years/150,000 miles. However, Subaru of America denied coverage and goodwill (case XXX) because the vehicle was originally sold in [XXX] through Subaru’s independent distributor, Trebol Motors, before I moved to [XXX] in XXX. This failure disables key safety systems without warning and should be addressed through a safety recall that covers all affected vehicles, including those sold in U.S. territories. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 19, 2026 · Electrical, Engine · WA · fire

Smoke and fire occurred in the engine and spread into the car while the car was being driven. The car has not been inspected yet.

Filed Aug 11, 2026 · Fuel system · IL · crash · fire

While driving my girfriend's 2020 Subaru Forester on August 11, 2026 at approximately 65 to 70 mph, I struck a deer on a highway. The airbags deployed immediately, and I temporarily lost all forward visibility due to the airbag deploy, and smoke or steam coming from the front of the vehicle as it decelerated to a stop. Within moments of stopping, smoke transitioned to visible flames coming from the engine compartment. The fire spread extremely quickly, and the vehicle became fully engulfed in flames within minutes. The specific component or system that failed is UNKNOWN, but based on the sequence of events, it appears that a front‑end structural failure during the collision may have caused a rupture of one or more engine‑bay components (oil system, coolant system, or other fluid lines), leading to a rapid fire. The vehicle was completely destroyed and is not available for inspection, but the incident was documented by emergency responders and my insurance company. This fire created a severe safety risk, as the vehicle ignited shortly after coming to rest and burned intensely. I had no warning lights, messages, or symptoms prior to the collision. The problem has not been reproduced, but I have since learned of multiple similar fires involving Subaru Foresters after front‑end animal impacts, which raises concern about a potential design vulnerability.

Filed Sep 15, 2025 · Electrical, Engine · NY

When stopped at an intersection the car stalled. It would not restart for three minutes and caused a dangerous situation for my family and children in the car while traffic was moving. There were no warning signs, lights, or engine codes. The problem is random and cannot reproduced. The car is available for inspection.

Filed Sep 23, 2024 · Electrical, Engine · TX

Vehicle traveling W on [XXX] Bryan TX. Automobile suddenly started shaking and not developing power, Driver was able to pull off on the shoulder barely clearing the #2 lane. The engine would crank but not sustain operation. The auto required transport to the home garaging location. Subsequent analysis of the fuel showed it to be gasoline, no water, lacked appearance of any foreign matter. With the ignition on 12V were detected at the gas tank terminal, however the in tank pump would not produce fuel flow at the connection at the top of the tank. Had the vehicle been operating in the #1 lane it may not have been possible to clear the traveled lanes thus causing a traffic safety problem. A State Trooper did provide protection until the vehicle was transported. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 5, 2024 · Driver assistance, Electrical · CA

A week after my routine oil changed at 31K, the check engine light along with flashing "s" pop up. The next day the check engine disappeared. I was some what happy and continue to drive car as normal for 2 days, then check engine light came back again and this time is staying for good. I just can't believed that 4 years old car is having this issue. I've owned so many cars prior to this 2020 Subaru Forester, never once that those cars have problems like this one. I feel that i'm at risk driving without no eyesight or collision prevention warning.. when the check engine comes on, those two things are disable. After a long research and reading about so many people with same issues, i feel that they should be a recalling to fix the thermal valve control.

Filed Oct 9, 2023 · Electrical, Engine · SC · fire

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.

Filed Sep 26, 2023 · Acceleration, Fuel system · CA · crash · 1 injury

Unintentional acceleration. After making right turn, vehicle accelerated for approx 1/2 mile until crashing into wall. Several attempts at braking and trying to shift into neutral did nothing.

Filed Jul 8, 2023 · Acceleration, Fuel system · ID

Our thermo control valve (TCV) assembly failed and caused dangerous loss of speed and control while on the highway. Subaru is fully aware of the defect in their design as they issued a service bulletin to inform their service centers of a new, fixed TCV assembly that is retaining the same part number (a notice only sent to their service centers, NOT to owners). Please see attached. Despite being aware of the defect, Subaru has not voluntarily replaced the defective TCV assemblies or even bothered to notify owners. Instead, they are letting us put our families and other drivers in dangerous situations through sudden loss of control. There are pages and pages of other owners experiencing this dangerous issue and - like me - being surprised to find it's a known issue that Subaru is not proactively fixing (see any of the owner forums like subaruforester.org).

Filed Feb 11, 2023 · Fuel system · AR

Much like the 2018 Outback issue I had, my 2020 Forester is having the same issue with fuel indication inaccuracy and mpg increasing when fuel level gets under a quarter of a tank. My local Suburu dealership said this is not an issue for this model. I have reported this to Suburu as well. Previously, Subaru found that the software that controls the fuel system can cause the fuel gauge to show that there is still fuel left in the tank when there isn’t. More specifically, the low fuel warning light may not actually come on, and the miles to empty display could be inaccurate. The software is causing additional miles to be showing when they are not available. I don't know if this is a similar issue or not, but no one has fixed it. With any vehicle, you need to be able to rely on the fuel gauge. Knowing how full (or empty!) your gas tank is extremely important when driving, particularly if you are driving a long distance. If you do run out of gas, the engine can stall; fortunately, the vehicle can be driven to the side of the road if it stalls when you are in motion. As the issue involves a software bug, it is easily fixed by the dealership.