2017 Subaru Forester: adaptive cruise control problems

Filed Sep 10, 2026 · Brakes, Driver assistance · CA · crash · 1 injury

On May 30, 2026, I was driving the freeway 2(Glendale Fwy) south, I was using the cruise control and driving 63 0r 68 miles. All of sudden, my car start to shaking violently, moving toward right lane, so I tried move my car back to my lane. My car was out of control and driving zig zag way then went up to hillside of the freeway and roll over end up crash on the concrete swale. I thought that was my last moment of my life. I could not move, severely injured and my car was totally damaged. The driver was driving who witnessed whole thing from behind my car, stopped and called 911. He was kindly came to me and gave me a drinking water. The mileage in my was about 68000 miles and I did maintenance as the manufacture recommended it.

Filed Mar 12, 2026 · Driver assistance · VA

My 2017 Subaru Forester Touring (VIN: [XXX] , 118,200 mi) has a recurring EyeSight failure where the system becomes disabled and will not complete camera registration or calibration. Subaru of Sterling (VA) diagnosed active code B28A0 “Vehicle Model Judgment” and noted that the EyeSight stereo camera would not accept vehicle model registration. The technician documented: “Error for camera adjustment incomplete. When attempting to relearn UI for Eyesight camera, system is not taking vehicle registration; suggests camera replacement and perform recalibration.” This occurred after a confirmed DCM/STARLINK parasitic draw had caused repeated low‑voltage conditions until the dealer reset the DCM to factory mode (per the RO: “No further draw present at this time”), suggesting EyeSight registration may have failed due to prior voltage instability rather than true hardware failure. Subaru's service flow for B28A0 indicates this code can occur when the model write/registration is incomplete, interrupted, or mismatched—not necessarily when a camera has failed. Subaru lists causes such as: CAN communication issues, incorrect model registration, incomplete write due to ignition timing, or power/fuse issues during aiming (EyeSight diagnostic manuals). I am reporting this to the federal safety agency because EyeSight is a safety-critical system that governs adaptive cruise, lane keep assist, and pre-collision braking. My dealer is recommending camera replacement without documenting that Subaru’s required pre‑replacement steps (model registration inspection, CAN/LAN re-scan, voltage and fuse verification, genuine-part verification, etc.) have been completed. I request ODI review because EyeSight should not fail to register unless hardware is defective or a procedural/voltage issue exists. I want this documented in case this represents a broader pattern of EyeSight registration/calibration failures on Forester models using the same stereo camera platform. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 22, 2025 · Airbags, Driver assistance · CA

Lately, Airbag warning light comes on intermittently often. Sierra subaru would not fix without charging me for inspection for $240 and then cost of rapair. Also cruise control is malfunctioning where it gets disengaged near the vehicle in front where I have to apply brake hard to avoid serious accident. Also the EyeSight NOT working warning has started showing lately. My forester 2017 at 44K miles showing airbag light at times along with cruise control disengaing near front car and eyeSight not available mentioned above. Detail on airbag fix at Sierra Subaru in Monrovia, California. On August 12, 2025, I want to get this intermittent error fixed under warranty. on August 12, 2025 Alexander in service told me that it will be $240 approximately of charge to inspect. Kindly let me know if the airbag warning light at such low milage not going to be covered for warranty. Please Note that I bought the Forester at Sierra Subaru Monrovia Ca and had every single service done there. Lately I have been charged in thousands of dollars at such low mileage to own the 2017 Subaru Forester

Filed Aug 9, 2022 · Driver assistance · NY

We have a 2017 Subaru Forester 2.5i Premium with Eyesight with 58,582 miles. During the first week in June, 2022 the Eyesight System failed and displayed an error message that stated to “See Owner’s Manual “. The Owner’s Manual stated ”take the vehicle to Subaru dealer for servicing” which we did on June 9, 2022. The Subaru servicing dealer’s statement from the diagnostic invoice states “Checked for codes in all systems found code B2809 VDC Malfunction in Eyesight module. Checked code in VDC module found C1742 wheel cylinder pressure sensor ran test for code lead to needing VDC module replaced “. Subaru parts stated to the dealership that the part would not be available until July 30, 2022 when that date came I was notified that part would not be available until Aug. 8, 2022. I was notified again on Aug. 9, 2022 of another delay only this time indefinite as to when it may be available. Without the Eyesight System the following safety functions that I am aware of do not work 1) Adaptive cruise control, 2) Emergency front braking, 3) Lane departure and Lane keeping assistance, 4) Forward collision warning, and there may be other safety features that are connected to this system that I am not aware of.

Filed Aug 10, 2021 · Visibility · CA

Spontaneous windshield crack occurred while car was parked (i.e., no collision or pebble impact). Crack originates at lower portion of passenger side in black-colored perimeter of windshield glass with windshield deicer and spread upward and across middle of entire windshield. Crack obstructs driving visibility and poses risk to integrity of entire window including adaptive cruise control and forward collision warning system calibration. No previous impacts to windshield. Suspect defect in windshield consistent with those found in 2015-2016 Subaru Outback and Legacy models related to materials used in deicer area of windshields in recent class action settlement against Subaru. Took to Subaru dealer who confirmed origin of crack in originates in deicer region of windshield, but denies any liability for weakened material at sight of deicer as determined for other models.

Filed Jun 16, 2021 · Steering, Wheels · AZ

I am writing to inform you of the following problems with the steering system of my 2017 Subaru Forester: 1) When turning or changing car lanes, the steering wheel does not engage the wheels until the steering wheel is turned to about a 90 degree angle in the direction of the turn, left or right, 2) After making a turn, it takes more rotations of the steering wheel to come out of the turn than it took to make the turn. At other times it takes more rotations of the steering wheel to make the turn than it does to come out of the turn, 3) Constant adjustments to steering have to be made in order to stay in a lane regardless of whether the lane is straight or curved. It's like trying to maneuver a boat on water or like driving on a frictionless surface. It feels like the car switches to a different control system, either void of any driver control, or delayed response to driver input, and 4) The steering wheel has to be turned to almost a 90 degree angle before it engages the wheels while the car is running and stationary. With the exception of item 4, the steering problems occur when there are other cars in the vicinity of our car. On secluded roads our car drives fine, so far. The steering issues occur during city and highway driving. The steering problems occur even when the following car assistive technologies are all set to off: automatic braking, hill assist, lane change assist, X-mode, Eyesight, and cruise control. On May 4, 2021, we took the car to the Subaru Superstore of Chandler in Arizona. We showed the dealership a video of item 4 and they observed it. They described it as "egregious". The dealership stated that they could not find a reason for item 4 and they could not duplicate the other problems. They stated that they documented the problem. Having an unresponsive/delayed response steering system could prove disastrous when seconds count to avert a disaster. This has been an ongoing problem since October 2018, with no resolution from Subaru.

Filed Oct 25, 2020 · 50,100 miles · NY

Car check engine light went on while driving. Safety features advertised with the subaru forester such as blind spot detection, cruise control, forward accident avoidance all stopped working. Once the code was cleared from the car, these safety features returned. The check engine light was caused by failure to secure gas cap tightly. I believe that safety features should not be disabled with check engine light going onb.

Filed May 16, 2020 · Acceleration · 33,491 miles · MN

Traveling on a highway, no cruise control set. Maintaining 70-73 MPH. All of a sudden I felt my car surge, speed up on its own. I took my foot off the gas pedal briefly and the car continued to surge. I heard the engine make acceleration sound like I was speeding off a ramp to get on to a highway. Confused as to what was going on, I stepped on my brake twice. I then noticed I had control again of the speed. I wasn't really sure what happened.

Filed Dec 29, 2019 · Acceleration, Fuel system · 29,000 miles · WA

I was driving on the high way for about 2 hours, 70 MPH, gas was at about 1/8 full, but low gas light on. The gear shifter remained in d and the indicator on the dash said d. The engine revved as if it were in neutral and would not provide power to the wheels. The check engine, traction control, and cruise control lights came on, along with possibly others. The car began to slow since it was just revving in what appeared to be neutral while the gas pedal was pressed. Eventually I made it to the shoulder. I turned the car off for about 15 seconds then started it again. It struggled to start for a moment like the battery was low or it was cold outside, but still started on the first try. I shifted into d and began to move on the shoulder, but when the car when over about 10 or 15 MPH, it would rev and not provide power to the wheels. I had the car towed to the dealer where they added gas, test drove it, said there was nothing wrong, and nothing that they could do.

Filed Jun 10, 2019 · Acceleration, Brakes · 23,825 miles · AZ

I am writing in regard to fbi alert number 1-031716-psa. My husband and I believe that our 2017 subaru forester is being remotely exploited. Sep. 29, 2018 we purchased our forester from tucson subaru (4901 n. Oracle road tucson, az 85704). Oct. 3, 2018 we took car to tucson subaru because car was braking when the brakes were not applied, and there was a diagnostic code in the power-train system. Dealer kept car and returned it to us oct. 4, 2018 stating that they could not duplicate the problem. The brake problem increased after receivng our car back. The following anomalous vehicle behavior began to occur, intermittently and now daily. 1)car accelerates on its own and when brake is lightly pressed. 2) when turning, car stops momentarily and at other times accelerates into the turn from the rear wheels causing the car to almost fishtail. 3)car self accelerates from the rear like it's being pushed. 4)car brakes when no brakes are applied, and when gas pedal is lightly pressed. 5)speed does not register correctly on speedometer when car self accelerates and self brakes. 6)wheels lose traction at random times making it like driving a boat on water. It feels like all manual controls disengage. 7)during anomalies, something in car causes difficulty in concentration to near passing out. Exiting car decreases symptoms. 8)something at front floor in car causes feet to heat up, vibrate, go numb, swell, and form small blood clots beneath the skin surface making it difficult to hold on the brake or gas. 9)the anomalies occur when a car tails us or stays a specific distance behind our car. All anomalies have occurred when there are other cars in the vicinity of our car, during city and highway driving (cruise control is off). Nov. 17, 2018 and apr. 23, 2019, we took the car to tucson subaru. Dealership stated that they could not duplicate these anomalies.