Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2017 Subaru Forester owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2017 Subaru Forester. The contact stated that while attempting to shift gear into reverse, the vehicle made a strange noise, then lunged forward inadvertently. The vehicle's front driver-side tire ran over the contact's daughter's upper legs. The contact's daughter received medical attention on the scene for injuries sustained to her legs and was now receiving physical therapy. A police report was filed. The vehicle was appraised by the insurance company for front-end damage and was repaired by an auto collision center. The dealer and manufacturer were not made aware of the failure. The failure mileage was approximately 90,000. The VIN was not available.
The contact owns a 2017 Subaru Forester. The contact stated while driving 60 MPH, the contact stated that all four wheels seized. The contact stated that the transmission had seized. The contact stated that the failure occurred while driving on a busy highway. The contact stated that the driver of a big truck assisted by stopping the oncoming traffic. The contact stated that a tow truck and the Police arrived on the scene. The contact stated that the tow truck driver was unable to load the vehicle onto the tow truck. The tow truck driver had to drag the vehicle onto the tow truck. The vehicle was towed to an independent mechanic; however, the vehicle had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000.
The contact owns a 2017 Subaru Forester. The contact stated while driving approximately 50 MPH, the vehicle suddenly stalled. The contact veered to the side of the road and turned off the vehicle. There were no warning lights illuminated. The vehicle was towed to the dealer where the transmission clutch was replaced. However, the failure reoccurred while driving approximately 30 MPH, and the vehicle had 95,000 miles. The vehicle was towed to the dealer who diagnosed that the transmission clutch, the ball bearings, and the flywheel needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 50,000.
The contact owns a 2017 Subaru Forester. The contact stated while driving at an undisclosed speed, the vehicle made an abnormally loud sound. The oil temperature, ABS, and traction control warning lights were illuminated. Additionally, the AWD failed to operate, and only the FWD was operable. The vehicle had previously been at the dealer for an air conditioner repair, and the dealer reset the warning lights; however, the failure recurred. Additionally, the rear wheel bearings, and valve body solenoid were previously replaced. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 154,095.
The contact owns a 2017 Subaru Forester. The contact stated that the key remained stuck in the ignition after multiple attempts to shut-off the vehicle. The contact stated that he had to restart the vehicle or move the shift lever back and forth from the park position to release the key from the ignition. The contact took the vehicle to the dealer and was informed that the failure could be related to the shifter cable or the ignition switch. The manufacturer was not notified of the failure. The vehicle was not yet repaired. The failure mileage was approximately 49,000.
The contact owns a 2017 Subaru Forester. The contact stated while operating the vehicle and depressing the accelerator pedal, the vehicle wound not properly accelerate. The failure also occurred while accelerating from a complete stop. The vehicle was taken to the local dealer who determined that the transmission was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 150,000.
The contact owns a 2017 Subaru Forester. The contact stated while driving over 60 MPH, the vehicle would shudder and produce a loud noise coming from the engine compartment. The vehicle was taken to a local dealer where it was diagnosed and determined that the lower control arm bushing and transmission pan needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000.
After driving the vehicle I will arrive at my destination. I will stop, continue pressing the vehicle break while moving the shifter from drive to park. Then, I turn the key to the off position in an attempt to remove my key from the Ignition. About 40-50% of the time, the key can not be removed. In order remove the key I will have to do one of the following: Option 1. Let my foot of of the break, pause, then press my foot hard on the break peddle, move to shifter from park to drive, while continuing to press my foot down hard on the break peddle, move the shifter back from drive to the park position. Often I will have to repeat this process several times to remove the key form the ignition or attempt Option 2.. Option 2. …
The shift guide plate in my 2017 Subaru Forester failed, causing the ignition key to become stuck and not release when the engine is off. The component is available for inspection upon request. The failure was confirmed by a Subaru dealer, who diagnosed the defective shift guide plate and provided a repair estimate of $685.23. The safety risk is significant - an inability to remove the key from the ignition can prevent the driver from securing the vehicle and creates confusion about whether the engine is truly off. There were no warning lamps or messages prior to the failure. The problem presented suddenly and has been reproducible consistently since it first appeared. This is a known manufacturing defect. Subaru acknowledged it by issuing an 8-year extended warranty extension (TSB 16-112-18R) specifically covering this component. …
My 2017 Subaru Forester has 52,000 miles driven. Recently the ignition key will NOT turn to start the engine. The transmission was in park and all the doors were fully closed. After 15 minutes trying several times to no avail it did finally turn to the right and the engine started. Also, previously a few times, randomly, the key would not turn all the way to to the left to turn the engine off. Again, the car was in park and I kept my foot on the brake while trying. Each time this happened I had to move the transmission from Part to Drive and back to Park again, (while keeping my foot on the brake) and the key finally turned all the way to turn the engine off. I am now bringing the car to a Subaru dealer service shop (in Annapolis, Maryland) to try to have them repair this problem once and for all. Thank you, [redacted].
Transmission complaints in other Forester years
Frequently asked questions
How common are transmission problems on the 2017 Subaru Forester?
NHTSA has 46 complaints about the transmission & drivetrain of the 2017 Subaru Forester, 8% of the model year's 592 complaints. The component named most often is automatic transmission (2 mentions).
Is there a recall for 2017 Subaru Forester transmission problems?
No. NHTSA lists no transmission & drivetrain recall for the 2017 Subaru Forester, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2017 Subaru Forester transmission problems start?
Half of the complaints with a recorded mileage happened before about 33,000 miles, and 36% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 1 injury to transmission & drivetrain 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.