Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2019 Subaru Forester owners, lightly cleaned up (personal details are redacted by NHTSA).
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. …
The contact owns a 2019 Subaru Forester. The contact stated that while his son was driving at approximately 60 MPH, the check engine warning light illuminated. The contact's son stated that the vehicle was emitting smoke from the exhaust pipe. The contact stated that his son pulled off the highway and stopped the vehicle and had the vehicle towed to the dealer. The dealer diagnosed the vehicle and determined that the positive crankcase ventilation valve (PCV) had separated and needed to be replaced. The vehicle was not repaired. The contact was advised by the dealer that the failure was related to NHTSA Campaign Number: 19V856000 (Engine and Engine Cooling) which was already completed on the vehicle. The manufacturer was informed of the failure. The failure mileage was approximately 130,000.
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.
The contact owns a 2019 Subaru Forester. The contact stated while driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the audible alert sounds were excessively loud and the warning lights were so bright that the contact became 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 it was determined that 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.
The contact owns a 2019 Subaru Forester. The contact stated that after starting the vehicle, there was white smoke coming from the exhaust pipes. The vehicle was towed to the local dealer who diagnosed that the engine PCV had failed, causing catastrophic damage to the engine. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed that the vehicle was previously serviced under NHTSA Campaign Number: 19V856000 (ENGINE AND ENGINE COOLING); and the engine was replaced as part of the recall repair. The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 122,000.
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 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.
The contact owns a 2019 Subaru Forester. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to Auto Zone, where it was diagnosed that the thermal control valve was faulty. The vehicle was then taken to the dealer, where the thermal control valve was replaced. The manufacturer was made aware of the failure. The contact related the failure to Technical Service Bulletin: 09-80-21 (Thermal Control Valve - Design Change) however, the vehicle was not covered under the TSB. The failure mileage was approximately 93,000.
On November 30th around 5:30 PM on [redacted] 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.
The contact owns a 2019 Subaru Forester. The contact stated while driving 20 MPH, the check engine warning light illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the temperature control valve (TCV) to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 67,000. The consumer had to get the vehicle repaired due to this TCV valve issue all the security systems were not functioning causing safety issues.
Related recalls
Engine and engine cooling › Exhaust system › Emission control › Crankcase (pcv)
Subaru of America, Inc. (Subaru) is recalling certain 2019 Crosstrek, Forester, and Ascent vehicles. The aluminum Positive Crankcase Ventilation (PCV) valve can separate, allowing the separated components to enter the engine, resulting in a loss of power while driving.
Remedy: Subaru will notify owners, and dealers will inspect and replace the PCV valve, free of charge. If the PCV valve has separated and the components cannot be found, the short block engine will be replaced, free of charge.
Engine complaints in other Forester years
Frequently asked questions
How common are engine problems on the 2019 Subaru Forester?
NHTSA has 111 complaints about the engine & cooling of the 2019 Subaru Forester, 13% of the model year's 834 complaints.
Is there a recall for 2019 Subaru Forester engine problems?
Yes — NHTSA recall 19V-856 (crankcase (pcv), Dec 2, 2019). Recall repairs are free at authorized dealers.
At what mileage do 2019 Subaru Forester engine problems start?
Half of the complaints with a recorded mileage happened before about 30,000 miles, and 46% before 25,000 miles.
Is it dangerous?
Owners linked 7 crashes, 7 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.