93 problems related to engine and engine cooling have been reported for the 2019 Subaru Forester. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Subaru Forester based on all problems reported for the 2019 Forester.
Car has died 10+ times in the last 2 weeks. Will not hold a charge and it’s getting to the point that my car is dying in the middle of the road, during heavy traffic. That or the car will just not start unless jumped.
My Subaru smelled like gas and caught on fire while I was driving to work less than 72 hours after it left the service department at the local Subaru dealership. Earlier that week I dropped the car off for service due to a check engine light and multiple other warning lights on the dashboard. The check engine light was determined to be due to a faulty thermo control valve (a known issue on several models of 2019-2021 Subarus). During that service appointment, the thermo control valve was replaced under warranty, the 60000 mile service, state inspection, and an oil change/tire rotation were completed. The morning of the incident, the car smelled like gas, but there were no warning lights on the dashboard and the temperature and gas gauges were all in range. While looking for a safe place to pull over on the side of the road, the gas smell worsened, I heard a pop, the check engine light and every single other light on the dashboard lit up, it smelled like burning jet fuel, and the front of the car was smoking and there were flames, and all mechanical and electrical control of the vehicle was compromised. The car coasted to the side of the right lane. I was unable to operate the gear shift to put the car in park. I opened the driver’s side door, removed my seatbelt, grabbed my backpack, lunch bag, and phone, and exited the vehicle while it was still rolling. I ran around the back of the car to get onto the side walk. Flaming, melting pieces of plastic were coming off the bottom of the car. Flames and smoke were visible on the front hood of the car. I called 911 while the car continued to roll across several lanes onto the other side of the road. The burning car rolled and hit a guardrail on the opposite side of the road and continued to burn until the local fire department arrived on scene. Local police and the fire inspector wrote reports. My insurance declared the car a total loss. I have informed the local dealership and worked to get them access to the vehicle.
During severe stop/go, thick, holiday traffic on I-495 (DC beltway), during daylight hours, once again (this has happened several times before), the auto engine shutoff feature catastrophically malfunctioned, turning the car off, and simultaneously, activated the entirety of the dashboard to flash on/off, causing nearly every indicator light to come on, and then had difficulty restarting. This has been brought to Subaru's attention multiple times and they essentially have washed their hands of it and stating since they can't duplicate it, it essentially must not be occurring and they cannot repair it.
My car is a 2019 suaru Forester 54,268mi I was driving from houston to dallas on the freeway during a thunderstorm on [xxx] [xxx]. I got off the freeway and was almost on the road near my house when my car engine suddenly died, I had no control of my car, my car engine would not start anymore. I had no problems with my car before. I towed it home the next day and had it checked with a scanner and it came up with about 25 check engine codes. 5/14/2025 Subaru dealer (ewing of plano) had it checked and had the thermo control valve replaced because it was bad. They had no previous notices or recalls. If my car had stopped in the middle of the freeway it could have been a major accident. . Other people's lives are important. . Please look into this issue information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
Auto start/stop shut off engine at drive thru line. Locked up brakes and could not get it to unlock and restart car. It has happened on a number of occasions. After multiple attempts trying and letting it sit for a couple of hours, somehow got it to unlock and start. Thank goodness we haven’t gotten into an accident.
When I first noticed that my car wasn’t heating properly, it was in may 20 24 when I purchased the car and carvana dropped it off to my place of residency. When I notified someone of this issue, they told me it probably just needed coolant. I did as instructed and noticed that I was adding in coolant frequently. On February 19, 2025 I returned home one evening and noticed that smoke coming from my car and coolant was leaking from underneath. I called roadside assistance in order to get my car towed and into service at the Subaru dealership. After inspection, the mechanic noticed that there was oil inside the coolant suggesting that there may be an issue with the head gaskets then warned me not to drive my car because there could be further issue with the engine as a result of the head gasket being blown.
When I break and stop the car power is reduced, at times it stalls out and be hard to start again when starting back up in traffic. This is also starting to happen in my other forrester of the same year.
At a stop light, auto stop engaged. When foot put on gas, engine died and every warning light the car has appeared on the dash board. It took several tries, but I did get the car started again. Took to dealer who confirmed the incident and replaced the starter at 38, 126 miles. The fuel pump relay was also replaced. After this incident, the cancel auto stop/start button was used most of the time when driving the car. 10 months later, forgetting to engage the cancel button, and the auto stop/start working, the car once again died at an intersection. We were able to get it restarted and it went back to the dealer. They again confirmed that the starter was faulty and once again replaced it and the fuel pump relay. This occurred at 44,770 miles. Thankfully, in both incidents, we were stopped at intersections with traffic lights. The first was in a left turn lane surrounded by cars on a hill. I was able to engage the parking brake before I rolled back into anyone. The second incident was at a flat intersection. Others were stopped around us and no one was approaching us with speed. My concern is that this will occur when waiting to make a left turn at an intersection and the car would roll forward into traffic. Another concern is if highway traffic is stopped and then starts moving again. If the car stalls and won't restart, traffic around you would go forward and traffic behind them would approach your stalled car at speed. Someone is going to be killed from this problem if they haven't been already.
While driving, the engine stalled and many dash lights came on. The thermo control valve was the cause. There was no warning and fortunately I was able to park off of the roadway. The car was towed to the nearest Subaru dealership at a cost of $223. 00. The car was repaired under the extended warranty, but I am out the towing fee. Had the defective part been recalled, I would not have experienced this engine failure.
On [xxx], while driving back home in the evening, the car started to make noises, that became quite loud very fast. I was able to drive to my home, less than 3 miles away, but I could not restart the car anymore. No warning lights were on. It was around [xxx] pm and I was afraid of what might have happened it the car became disabled. The next morning, the car was towed to the mileone herb gordon Subaru dealer in silver spring, MD. I was informed that the rod crankshaft bearing had failed. The engine short block had to be replaced. It is unbelievable to me that a car that had less than 58,000 miles and have been properly maintained will have such a catastrophic failure. The cost to fix this failure: $10676. 39 since it is out of warranty for time. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
My Subaru has a start-stop feature which automatically stops and restarts the engine when the vehicle is stationary for a short time, such as at a stop sign or red light. Several times within the last month I was stopped for a light or stop sign and the vehicle shut down completely. Engine turned off. I have attached a file showing the display on the dash. This was very unsafe as cars behind me were getting impatient while I had to figure out how to restart the car. It was very scary. After researching the problem online and taking the car to my mechanic it turns out that the battery was low. The battery was replaced and auto restart is working correctly now. It seems that with all the warning messages that are displayed (windshield washer fluid is low) that some indicator that the battery is low should display rather than this unsafe scenario.
The contact owns a 2019 Subaru Forester. The contact stated while driving 55 mph, the vehicle started hesitating while depressing the accelerator pedal with the check engine warning light illuminated. The contact activated the hazard lights and coasted the vehicle off to the shoulder. Due to the failure, the vehicle was towed to a local dealer where the vehicle was diagnosed with a defective thermal control valve. The contact was informed that the thermal valve was covered under an extended warranty by the manufacturer. The manufacturer was notified of the failure and a case was filed. The vehicle was repaired. The failure mileage was approximately 30,000.
The auto stop/start function is erratic. Many times the function fails to start the car after a stop. The car stalls. It requires car to put in park and have to restart the car. This causes delay for traffic to move. When this happens, it creates a safety issue. The car behind may start to move and cause accident because the rest of the traffic has started to move. Sometimes the car driver behind you honks the horn as the rest of the traffic starts to move. The 2019 Subaru Forester has only 31000 miles. This has been happening once a week since June 2023. It is becoming a safety concern for me. This started to happen around 25000 miles on the car.
I have had multiple issues with my car for the past month. First, my rear right wheel has been making a fan-like sound when going above 35mph and it gets louder until 70mph. It is most likely the wheel bearings going out but, I only have around 50,000 miles on the car. This seems to be a common issue with Foresters. Secondly, my rear harman kardon speakers have stopped working. This also appears to be a recurring issue with Forester's, with both their standard and premium sound systems. Lastly, my engine check light turned on and shut off my adaptive cruise control, forward collision warning, emergency braking, and rear automatic braking. I'm surprised that these issues are still happening to Subaru since they have been complained about by consumers for years.
Most of the safety quiet. Motor cut out, eyesight quiet working, check engine light came on service person said the diagnostic showed a code p2682 engine coolant bypass valve control low. Steering light came on. No prior warnings. Happened while driving at speed limit on interstate.
Engine failed without warning while driving on a busy highway on 4/20/2024. The engine suddenly stopped and tried to automatically restart itself only to immediately shut down, simultaneously dashboard lit up with multiple warning lights ( eyesight disabled, check engine light, rab off, brake light etc). No power to the car with inability to accelerate. My husband driving the vehicle was able to maneuver the car over 2 lanes in heavy traffic to the rumble strip between 4 lane highway and a 2 lane acceleration entrance ramp. We came within seconds of being hit which could have been a very serious accident. Since the car had no power we weren't even able to get to the right shoulder. We had to sit in the vehicle over 2 1/2 hours waiting for a tow surrounded by high speed traffic on both sides. The cause of engine failure was a defective thermo control valve, diagnostic code p26a6. Subaru recently issued an extended warranty in April for the tcv which is present in many of its vehicles. It should be a recall and not just an extension of the warranty since failure can be quite serious resulting in the engine completely shutting down. We had no previous warning that the car was at risk for unexpected stopping. Car is well maintained with only 34,608 miles (2019 model) and had been in the shop the day before the incident getting routine car service. The service manager knew what the problem was by description before even performing the necessary interrogation for diagnostic codes. He was able to get the vehicle to start and drive it into the dealer repair shop by simply removing the tcv before starting. We were the 3rd vehicle in that day for replacement of tcv. He stated they replace 5-10 a week although most present with a check engine light and some with other warnings such as eyesight disabled. The factory original tcv has been replaced with a reportedly revised tcv. Risk of engine failure without warning as result of faulty tcv is putting lives at risk.
See attached document for complaint.
The check engine light went on and the diagnostic code read was p26a3, engine coolant bypass valve is failing in my 2019 Forester, which only has 46,000 miles on it. Subaru was aware that this part was defective in the 2019-2021 models, because in Feb of 2022 the part was replaced and a service bulletin 09-80-21 was issued with instruction for replacing the part, but did not issue a recall, despite this problem causing the advanced safety features to stop working and directly affecting the proper functioning of the engine. My car is just out of warranty, and the quote to have my mechanic replace the part is almost $1200 which I am unable to afford and do not feel I should have to pay for. Subaru should be help to account for this issue.
Thermo control valve failure, p26a3 code, eyesight safety assistance warning light ,check engine light, pre collision braking light, lane assist light.
Start / stop feature. Multiple incidents. Continuing issue. Stop at a light or in traffic. The car turns off. Let off the brake the car completely looses power sometimes or dies. Need to move shifter to park to restart. When the vehicle dies completely. Unable to move shifter of use hazards. This has happened on the highway at stop lights leaving me stranded in the middle of the road with no vehicle power. Or having to restart. Battery, starter and alternator have been tested and are good. Safety issue.
Check engine light came on roughly 3 days prior to incident. Temperature control/coolant bypass valve failed (replaced by dealer at my expense with now updated design), caused the car to unexpectedly lose power rapidly and enter limp mode, dropping from 55 mph down to 5 mph in seconds. The incident occurred on a rural road. I had been on an interstate during rush hour roughly 15 minutes prior and could have caused a crash if the incident happened there.
Car had just been serviced by Subaru service dept on 2/27/2024. On 3/1/2024, while travelling in heavy rush hour traffic, we smelled a very strong odor of gasoline and were alerted by another driver that our car was leaking a large amount of gasoline in the roadway. We pulled over to a safe area, evacuated the car, and the car burst into flames. Fire was extinguished by the wantagh fire department. Police report by NY state police was obtained. Car was removed by tow truck.
While driving on a highway outside milford, CT my vehicle is check engine light suddenly illuminated. I had a sudden loss of power, no heat, and the engine temperature was unable to read. Engine temperature was not accurately reporting and showed it as being cold as indicated by blue light warmup light. My eyesight, pre-collision system, and sport mode was disabled due to the engine light being illuminated. The vehicle was seen at a Subaru dealer, who diagnosed the issue to be the thermo control valve. Dealership informed me that it was unsafe to drive and I risk complete engine failure, overheating, and or fire if I continue to operate without required repair. As a result, I was stranded overnight, three hours away from home. Repair was completed on 3/2/2024 at cost of $1830. I learned at the dealership that this is a known issue, in 2021 Subaru replace the plastic components of this part with aluminum due to similar issues experience by many customers. Customers are reporting vehicles going into “limp mode” and even engine damage. . Read more...
My 2019 suburu Forester battery will not hold a charge. Whenever I want to use it, my husband must jump the Forester with cables from his car's battery. I am careful not to park it for long and use it for trips to dentist, doctor, and other necessities. We bought the suburu Forester brand new off the car lot in 2019. The car has under 3k miles of use--it looks in perfect condition. We've changed batteries but that did not solve the start up problem. It is a safety hazard depending upon where I have to stop the car. The "incident" is one of many recurrences. After 7 days of nonuse, parked in my garage, the car fails to start.
The contact owns a 2019 Subaru Forester. The contact stated that while driving at an undisclosed speed, several unknow warning lights illuminated. The contact stated that the alerts sounds and warning lights were excessively loud and bright that the contact was frantic. The contact stopped at a local auto zone. The auto zone mechanic inspected the vehicle and informed the contact that the failure was due to a failed heater control valve. The vehicle was taken to the dealer where it was diagnosed with a failed heater control module and the heater control valve needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 79,128.
I am concerned as my car was safely parked, once I started it and it said eyesight off, flashing s symbol, the heat thermo stat changes back and forth from hot and cold, car is not warming up and check engine light came on. I am very concerned as it is the winter, and I have my baby in the car. Please advise. This seems very unusual and never happened before. The vehicle have around 23k miles.
The vehicle is less than 5 years old and has less than 50k miles. While driving with cruise control engaged on the thruway, my check engine light came on. Almost immediately after the red "brake" warning showed on the dash. When that happened my car engaged the brakes while I was traveling at 75mph and I pulled to the side of the thruway as quickly as I could as to not wreck with another driver. My engine sounded like it was working overtime so I shut off the vehicle. After a couple of minutes I tried to start my engine and it would not go. After another few minutes I was able to start the vehicle but could not drive because the brakes were still engaged. I needed to turn on/off the parking brake a few times before they released. I then drove the vehicle the remaining 2. 5 hours home with the check engine light on and red "brake" light off. This same scenario happened on my way to bring the vehicle to the dealer to fix the issue. The Subaru dealership inspected the vehicle and confirmed the thermo control valve was malfunctioning and would need to be replaced. Thankfully the vehicle was under warranty and did not cost me anything to repair.
I started my vehicle and the check engine light came on. In addition, my eye sight turned off and the letter s started blinking. I also had clicking noises when I turned the vehicle off. I read some forums and this is a thermo control valve problem that happens to many Subarus in 2019-2021 range. As I took the vehicle to check the codes, the heater did not work and the cold engine light kept coming on. The codes read p26a3. Other reports are: NHTSA 11490232; 12479843; 11511658; 11490977; 11479843; and many others. Apparently Subaru is aware this valve and has come out with a new replacement that costs a high dollar amount to change out.
Cracked exhaust manifold for no apparent reason. I live in florida, which does not have extreme temperature fluctuations. It caused toxic fumes to leak into the cabin, confirmed by Subaru tech and handheld carbon monoxide detector.
On November 30th around 5:30 pm on highway 161 in york county,SC my wife struck and killed a 6 point buck. Thankfully a SC highway officer was coming in the opposite direction saw the accident and aided my wife in getting out of the car as he had seen a fire in the engine compartment area. Shortly thereafter the car exploded and was engulfed in flames and totally destroyed. Neither the patrol officer nor the tow operator can remember an auto fire resulting from striking a deer.
There are two problems: 1 after the car turns off after stopping to save fuel it will fail to restart automatically and must be put into park to manually restart; 2 the car will try to change lanes indicating that the safety related lane change is malfunctioning. I have to fight the car to maintain my lane.
I own a 2019 Subaru Forester. Approximately 5 months ago, I experienced a failure in the auto start-stop feature. My car intermittently shuts down when stopped at traffic lights or in the middle of an intersection. Subaru conducted a diagnostic assessment to address the issue, but they couldn't identify any problems. This has happened about six times within the last five months. They claim to have never encountered this issue before. The temporary solution is to turn off the car and restart it, which is not safe when it occurs in the middle of an intersection. Following my dealership's recommendation, I replaced my battery with a standard efb battery, however, the same issues persisted. Notably, the problem consistently occurs after driving on the highway for approximately 60-80 minutes and then coming to a stop at traffic lights. It is evident that the issue is not related to the battery. This issue raises significant safety concerns, especially when making left turns after coming to a stop at intersections. The sudden shutdown of the vehicle in the midst of an intersection can pose a substantial safety risk to both the driver and other road users. It not only creates a hazard in terms of traffic flow but also increases the likelihood of accidents and collisions. Given the critical nature of this safety concern, it is imperative that the problem be promptly addressed and resolved to ensure the safety of all road users.
Three times in the last week or so, coming to a stop, in traffic, the car throws a warning about the eyesight not working and it shuts the car off. The first time I was still rolling and had not come to a stop. The other two times I was just barely stopped and it happened. It would be horrible if it happened while driving fast. You have to put it in park and hit the start button to turn the electrical off and then hit the button again to start the car. Windshield is clean. No visible obstruction to the camera system. Clear weather every time. No rain. Daytime driving.
This is a follow up from previous complaint 11525953 dated 6/8/2023. My Subaru Forester stalled again on 8/2 at an intersection after 15 minutes of driving, and then again on 10/4 at an intersection after 45 minutes of highway driving. There are no warning signals or any indication of engine problems. I replaced the air filter in June hoping that might solve the issue.
4 days ago my check engine light came on. In my car, when this happens, it disables all eyesight features - collision warning, lane departure warning, etc. Work hours being what they are, I drove home that night and back to work the next day with it on. I managed to get it scanned when it popped a code for the coolant bypass valve. Searching that code online lead me to dozens and dozens of forums, posts, stories of the same code popping up on other 2019-2020 Subaru's. They all had to take it in for a hefty repair. It also led me to a service bulletin issued last year, which showed that Subaru had rebuilt the tcv so it could withstand corrosion, unlike the previous version. So naturally I took it into my local dealership to have it looked at, and sure enough - the tcv needed to be replaced. Why hasn"t this part been recalled yet??? given there is no thermostat on my cars dash, I would have no clue whether my car was overheating due to this faulty valve, until its too late. It seems like this is a big potential safety issue that Subaru needs to address, and someone needs to force their hand.