What 831 owners told NHTSA about the 2019 Subaru Forester Wilderness

The TCV Thermostat Control Valve has failed which is a known issue and Subaru is very aware. The vehicle will ultimately believe it is overheating and shut itself down. This is a very well known incident and should be a proactive recall but instead subaru insists on waiting for customers to fail and hope its outside of warranty so they can charge them $2k to replace a known faulty design and part.

NHTSA ODI 11531333

When I turn the car on it flashes check engine eyesite failure which then turns off the ability to use cruise control, crash detection, lane assist, ext. we called Dick Hannah Subaru and the code came up as P26A5 engine coolant bypass valve A position sensor. They said a thermo valve needs replaced and they’ve seen that happen a lot in 2019/2020 Subarus

NHTSA ODI 11530470

RAB disabled, eye sight disabled, I drive disabled, check engine light came on. Car drives like it's is in sport mode with very touchy throttle. Pulled a code and it's the TCV. It's a known issue by Subaru with a part that has since been revamped but with thousands of vehicles on the road affected. Should be a recall. Contacted Subaru of America with no response so now a $1,900-$2,500 depending on dealer cost is being pushed on the consumer. Vehicle currently has 80,000 miles but as a Subaru ambassador I used to put a lot of miles on going to events, meets and typical camping and outdoors activities you expect out of these vehicles so my milage is slightly higher than the normal work commuter.

NHTSA ODI 11529493

According to an inspection from the Subaru dealership, my thermo control valve failed. Because of this, the check engine light came on and my safety "eyesight" feature (automatic breaking/collision prevention system) was disabled. This first occurred after starting my car after a visit to a park 2 miles away. When this occurred, I drove my car home and parked it until I could get it in to be inspected at the Subaru dealership who pinpointed the problem. Besides a quick check from AutoZone, this is the only representative that has inspective my vehicle.

NHTSA ODI 11527708

Multiple incidences approximately 8 since 2022. Stopped for 8 months with new battery. No issues are recorded in the computer in any of the troubleshooting visits. Normal Sequenced of events: Stopped at a stop light, Start/Stop engages, take foot off brake, start providing gas, car stalls, dashboard lights up, alarms, provides instructions to place the car into park and restart, and the car restarts after that is performed. Danger situations that this has caused: Aggressive car behind not paying attention to the stall and Green light with no one behind and car coming up behind quickly while you are attempting to restart the car. As this cannot be disabled without modification to the car this created a dangerous situation.

NHTSA ODI 11527393

Driving home for 15 minutes. parked on left turn lane, slight incline. when traffic light turned green, i stepped on the gas and the engine stalled. I remember seeing "eyesight disabled" warning light come on. I put vehicle in park, shut it off, and turned engine back on. I was able to drive home. possible system failure - fuel system, auto/stop feature? yes, available to inspect safety - 5:30pm heavy traffic on 4 lane highway0. blocked traffic turning left. no where to pull over. have not taken vehicle to mechanic or been inspected. I saw no warning lights prior to vehicle stalling, or experienced any engine anomalies.

NHTSA ODI 11525953

The auto start/stop occasionally malfunctions where the auto stop turns on as expected but then doesn't turn off when you try to use the accelerator. It has happened when a red light turns green the car stalls, displays an error message and you have to restart the car to get moving again. This recently happened to me at a very busy intersection and was very dangerous.

NHTSA ODI 11525909

I was driving my 2019 Subaru Forester on 5/16 and it was operating normally that morning with no visible warning lights. I got back into the car later and it started fine. While getting onto a local highway, accelerating to highway speeds, multiple warning lights including the check engine light turned on. I was subsequently unable to accelerate and needed to coast to a stop on the closest off ramp, fortunately avoiding an accident. After turning the vehicle off and back on again the check engine light was still illuminated and the car would only make short lurching movements. I needed to have the car towed to a local Subaru dealership (Maita Subaru in Sacramento, CA) and they diagnosed it as a problem with the engine's thermo control valve. This was replaced under warranty and the vehicle is now working normally. The dealership told me this is a known issue with 2019 Foresters and that they've repaired other vehicles under similar circumstances. Multiple other owners have detailed similar experiences on an online forum as well. There does not appear to be a recall but this is a serious safety issue.

NHTSA ODI 11523826

THERMO CONTROL VALVE (TCV) is suspected. I am a member of 2019 Forester group on facebook and reports are quit common for these model year. The check engine light is on and RAB system/eyesight is disabled.

NHTSA ODI 11519164

* Eyesight disabled and Thermal Control Valve-P26A3 diagnostic code. Vehicle is available upon request. * Eyesight immediately disabled and maintaining that all safety features are disabled. Safety features that are relied upon, disengaged, and aborted for literally a Subaru known engine issue (TSB #09-80-21) - THAT IS SAFETY AT RISK to everyone that owns a Subaru with this issue. * 2 Independent services confirmed diagnostic- P26A3 *Subaru was requested to review when the vehicle was in for recall inspection. * No warning lamps, messages or any other symptoms of the problem prior to the failure. The warning lights and safety features disengaged all appeared at one time.

NHTSA ODI 11518902

The contact owns a 2019 Subaru Forester. The contact stated that on multiple occasions while driving at undisclosed speeds, or while the vehicle was idling, the vehicle lost motive power; however, the engine remained running. The contact attempted to press the START/STOP button to turn the vehicle off, but the vehicle failed to respond. The contact stated that several unknown warning lights were illuminated, and the turn signals failed to operate. The contact stated that she attempted to restart the vehicle several times however, after waiting for several minutes, the vehicle restarted. The vehicle was taken to the dealer however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.

NHTSA ODI 11516661

Check engine light seemed to put vehicle in "limp" mode, cancelling all onboard safety features, i.e. "eyesight", cruise control, vehicle dynamics control, blinking "S" Upon bringing it to a repair shop, they informed me that the thermal value control needs to be replaced, despite having owned the car for only three years. This leads me to suspect either a faulty part or a design flaw.

NHTSA ODI 11516121

March 9, 2023 at 7 AM, I was driving in Philadelphia and traffic had slowed slightly and I was going 5 MPH, coming to a stop in traffic when my car completely "froze", and all the lights on the dashboard came on and it said "auto start disabled" and my car would not move. I tried to hit "start/stop" button but nothing worked and I tried to hit my blinkers so I could warn the cars behind me, but nothing worked in the car and it was stalled. This was the situation for 4 full minutes. I am lucky the cars behind me were paying attention and did not hit my car when it abruptly stopped like that with no warning at all. I am really concerned about this car's safety. This issue occurred to the same car in 2021 and I made an incident report then as well. The dealership said it was due to a faulty hood sensor which they replaced but the same exact thing happened a few times in 2021. I think there is some problem in the car's wiring or electrical system that is not being addressed. This is unsafe and a safety hazard for me and other cars on the road. Subaru needs to address this.

NHTSA ODI 11510997

Thermo Control Valve went bad only after 4 years of owning a car. I do mostly highway driving put very little stress on the car. I think thermo Control Valve going bad just within 4 year. I suspect the parts to be faulty and it has some design flaw.

NHTSA ODI 11506336

The Subaru Forester 2019 Thermo Control Valve (TCV) fails. It is responsible for cabin temperature but also engine temperature and can result in overheating. There are numerous reports that this is a frequent problem and dealerships want to charge $1200+ to replace. It is certainly a design flaw and should be issued for recall. Mine is available for inspection and has been inspected by the dealership. It was first detected by a check engine light.

NHTSA ODI 11498516

2019 SUBARU FORESTER. CONSUMER WRITES IN REGARD ILLUMINATED CHECK ENGINE LIGHT.

NHTSA ODI 11498539

The engines shut down or stalled on me while driving completely. It did not accelerate when I was trying to move the car off the road. the engines sputtered / shaken , all the lights came up on the dash board, smokes started to come out of my engines. this problem is similar to the recent Subaru recall on the fuel pump. Please add 2019 Forester on your list of recalls. This is a serious and dangerous issue, i could have been killed if I was dring on the freeway. I was lucky it shut down on a little local street when I was dring slow , about 30 - 35 mpg. Imagine if this happened on the freeway, it could have created a chain reaction , and a lot more people will be involved, and deaths might be involved. Please add Subaru 2019 forester sport on your list immediately because deaths involved. Thank you.

NHTSA ODI 11497910

The Thermo Control Valve has stopped working It causes the engine to overheat while drive. The windows fog up in the cold making it hard to because the defrost does not work Yes by an independent service center No No the engine light came while I was drive.

NHTSA ODI 11497782

Car stalls out sometimes when running while stopped. This is not the stop/start system. Also, driver door power window will sometimes raise and lower on its own.

NHTSA ODI 11496876

The Thermo Control Valve has failed and threw a check engine light. This disables the Eye Sight System and causes no heat or defrosters. There seems to be a huge backorder with no ETA in sight for the replacement part. When this part fails there is no defrosters, no crash warning, no emergency braking....

NHTSA ODI 11493932

TCV valve failed and as a result RAB and Eyesight were disabled. The TCV has a known defective design and there is a bulletin about it. MC-10208664-0001 https://static.nhtsa.gov/odi/tsbs/2022/MC-10208664-0001.pdf

NHTSA ODI 11491974

On 10/7/2022, all the warning lights came on and stayed on, even after tightening the fuel cap and replacing the battery. I brought the car to Ocala Subaru this morning, and paid for a diagnostic that shows the Thermal Control Valve needs replacement. Apparently this is now a common problem on this year and model Subaru. I was told that this is not covered under the powertrain warranty, even though it is part of the engine assembly, and is a very expensive repair, even though the car has only 43,669 miles on it. I was told the part is on national back order and that the car is okay to drive, but that most of the safety systems that have the lit warning lights are now disabled. This is the car my wife uses to transport our 6-year-old granddaughter to school and swim practice and events, as well as elsewhere, and I feel this has compromised their safety and warrants a recall.

NHTSA ODI 11488786

The contact owns a 2019 Subaru Forester. The contact stated while driving at 45 MPH the RBD warning light stated off, as well as the Lane Keep, Eyesight, ABS off, and check engine warning lights were illuminated. The contact stated he noticed that several unknown safety features became inoperable. The vehicle was taken to the dealer and the contact was informed that the gasket for the heater control valve needed to be replaced. The vehicle was not repaired because the parts were not available at the dealer. The manufacturer was contacted and a voicemail was left. The failure mileage was 47,500.

NHTSA ODI 11488034

Keep getting check engine light. Blue cold engine light stays on. Getting code P26A5 Engine Coolant Bypass Valve 'A' Position Sensor Circuit Range. Parts are unavailable at the dealer. They can’t give me a time frame when they become available.

NHTSA ODI 11486657

when driving and stopped at a light the car died, I had to put it in park and restart it , this has happened on 4 different occasions, and I've taken it to the dealer and was told nothing checked out as failing, also, the radio has gone wild on occasion, dialing contacts in my phone numerous times, and me being unable to stop it. was told that heat and temperatures could cause the electronics to shut down or burn. I feel that I was in danger of getting hit because these things occurred while in traffic, and I had no control over the car, the system was acting out on its own.

NHTSA ODI 11486068