Subaru Crosstrek collision warning problems

Filed Oct 29, 2026 · Driver assistance · PA

I filled up my 2023 Subaru Crosstrek with gasoline and a short time later the Check Engine light came on as did the warning lights that the safety features associated with the EyeSight system indicating it was no longer functioning. It encouraged me to get the car checked immediately. It turned out that I had not completely tightened the gas cap. I tightened the gas’s cap hoping the safety featured would reset - it didn’t. I contacted Subaru and they said it should reset after a few stops when the engine is shut off. I was on a road trip from Pennsylvania to Maine on a weekend so there was no place to get it checked or reset. We stopped multiple times along the way and it never reset. There were no Subaru dealers at our destination in Maine. Finally after some research I found out I needed disconnect the battery for at least 30 minutes and the car’s computer will reset. It worked. My point is that a simple loose gas cap will TOTALLY DISABLE all of the car’s SAFTY features associated with the EyeSight system create a safety problem totally unassociated with a loose cap or vapor leak. I can understand the warning lights coming on telling the driver to have the car serviced immediately. I do not understand why it needs to disable the collision avoidance, line crossing warning and other SAFETY FEATURES associated with EyeSight, making the car less safe.

Filed Oct 24, 2026 · Driver assistance, Electrical · OH

Multiple times the vehicle has allowed lane crossing with no warning neither actual assist or beep into oncoming traffic. A vehicle abruptly stopped approximately 75 feet ahead of me the vehicle did not respond and I did have to slam my brakes. I was able to stop with only 3 feet between me and the stopped vehicle. Automatic collision avoidance neither attempted to stop nor gave any warning. Blind spot monitor allows lane change with turn signal on and a vehicle in blind spot again with no warning. I was on the freeway and the center lane when this happened, I was merging into right lane. Starlink 11.6" media center freezes and lags. Dealership service department claims everything is working fine. Service department claims nothing wrong even this was witnessed by a dealership employee and the dealer manager took my car to the service department after the employee explained these problems were seen with her in the vehicle.

Filed Jul 12, 2026 · Acceleration, Driver assistance · VT

While driving at highway speeds in the passing lane, the vehicle’s adaptive cruise control with EyeSight malfunctioned. The system suddenly emitted a forward‑collision warning beep even though the lane ahead was completely clear. Immediately after the warning, the brakes engaged forcefully on their own, causing abrupt and unexpected deceleration while overtaking another vehicle. This created a significant safety risk to us and surrounding drivers, as the vehicle slowed rapidly in active traffic without any legitimate hazard. In addition to the sudden braking events, there have been multiple instances where, while adaptive cruise control was active, attempts to decelerate using the steering‑wheel control button either did not respond or behaved unpredictably. On one occasion, pressing the deceleration button caused the vehicle to accelerate instead. These inconsistent control responses further increased the risk of losing safe control of the vehicle. The vehicle is available for inspection upon request. The problem has not yet been reproduced or confirmed by a dealer or independent service center, and the vehicle has not been inspected by the manufacturer, police, or insurance representatives. The only symptom prior to each event was the forward‑collision warning beep immediately before the brakes activated.The underlying cause remains UNKNOWN.

Filed May 22, 2026 · Driver assistance · TX

I was driving on a Texas highway on May 2 at the speed limit of 75 mph with the car on cruise control. It was a sunny day and traffic was light. Suddenly, without warning, or apparent cause the car went into a hard brake and the collision avoidance signals were beeping and flashing. The car behind me had to hard brake to avoid collision. I pulled over to the shoulder but as soon as I put my foot on the brake the flashing and beeping stopped. I eased back onto the highway but as soon as I got up some speed, the same thing happened again. I thought it might be related to the cruise control so I turned off the cruise control and it stopped. I drove the rest of the way without cruise control and there were no further incidents. I took the car to dealer. The service department ran diagnostics and test drove it but said they could not duplicate the problem. They said the car was operating "normally." I called Customer Advocacy at Subaru and spoke to woman on a recorded line. She clearly stated that sometimes the EyeSight feature can cause the car to "think there's something in front of you" and activate the collision avoidance hard braking. She claimed this was "normal." Still Subaru refused to do anything about it or buy back my car for more than trade-in value. I got the car from the dealer on May 18. On May 21, I discovered a class action lawsuit (Hall et. al. v. Subaru of America, Inc.) had been filed against Subaru on May 11, for the very same problem. The lawsuit covers most recent Subaru models including mine. I also discovered that "phantom braking" is a frequent complaint here and that Subaru settled a previous class action lawsuit for older models in Nov. 2025 . the federal safety agency needs to force a recall and warn consumers of this very dangerous defect. I would be surprised if it hasn't resulted in serious injury or death.

Filed May 20, 2026 · Electrical, Engine · CO

On [XXX] ~[XXX] PM, at highway speed on [XXX] eastbound near Frisco, CO (a mountain interstate), returning to Denver from Salt Lake City, my 2021 Subaru Crosstrek suddenly and without warning dropped into reduced-power limp mode and began lurching and shaking while the engine kept running. I lost the ability to accelerate or maintain speed. At the same moment the check engine light came on and multiple active safety systems automatically disabled: EyeSight, pre-collision braking, vehicle dynamics (traction/stability) control, and hill start assist. It took about two minutes to manage the lurching, power-limited vehicle across multiple lanes of traffic to reach the shoulder. My partner was in the vehicle. Had this happened on a bridge, a grade without a shoulder, a tunnel approach, or in heavier traffic, I believe a collision was a realistic outcome. The vehicle was towed to a Subaru dealer and diagnosed with a failed Thermo Control Valve. Sixteen trouble codes were stored, including P26A6, P0606, P060B, P2138, P2135, P2122, P2119, P2004, P2005, and P0191. Mileage was 49,983. There was no prior symptom. The vehicle had a full multi-point inspection at the same dealer only 11 days and ~1,400 miles earlier ([XXX]); nothing was flagged. This failure mode is already known to Subaru, addressed by Technical Service Bulletin 09-119-24 and a warranty extension to 15 years/150,000 miles; the dealer repair order confirms the TSB. I am concerned Subaru handles a safety-relevant failure, one that disables collision-avoidance systems at highway speed, through a quiet warranty extension rather than a recall or owner notification. Owners get no warning and discover it only when it fails dangerously. I request the federal safety agency open a formal safety defect investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 13, 2026 · Driver assistance · ME

On May 13, 2026 at approximately 2:50 PM, I experienced an unexpected activation of the EyeSight pre-collision braking system in my 2026 Subaru Crosstrek while pulling into the Chick-fil-A entrance area in [XXX] . The vehicle suddenly applied hard braking even though there was no imminent collision in front of me. The sudden braking created a hazardous situation and nearly caused me to swerve toward a pedestrian standing on the median area nearby. I was also fortunate there was no vehicle directly behind me, as the abrupt stop could have resulted in a rear-end collision. At the time of the incident, there were no warning lights or prior indications of a malfunction. The vehicle currently has approximately 900 miles on it. I have since contacted the Subaru dealership and scheduled a warranty inspection of the EyeSight/pre-collision braking system for further evaluation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 14, 2026 · Driver assistance · AL

On two occasions, the vehicle has activated the forward collision warning although there was no nearby vehicle or obstruction. The date of incident is not precise.

Filed Mar 26, 2025 · Driver assistance, Fuel system · CA

The 2019-2021 Crosstrek Hybrid has an issue with the fuel tank design. Subaru has finally released a TSB (Reference: 09-82-23R) that explains the issue in more detail and how the defective parts need to be replaced. In short, the fuel tank has a design flaw such that regular fuel corrodes the fuel tank and causes clogging in the vapor vent tubes. Subaru says it's related to fuel with high ethanol content, however I have been filling up with regular fuel and have still experienced the issue. I have personally owned two of these vehicles and experienced the occasional P0452 check engine light which when diagnosed by a licensed shop pointed to this fuel evap system issue. Subaru has finally acknowledged that this is a known issue and issued the TSB, however they have not yet issued a recall. The repairs for this issue are expensive and the symptoms are an occasional check engine light. I am concerned because this issue is not easily detectable and is expensive to repair. Since this involves the fuel tank and fuel vapors tubes I am concerned there might be a fire risk or health risk, but since there is no recall issued I don't know if it can be ignored or needs immediate attention. Subaru does cover this repair under 3 yr / 30k mile warranty but with the irregular symptoms it is hard to detect and diagnose it and Subaru only issued the TSB in Jan 2024 when the 2021 model became 3 years old and out of warranty. It seems like Subaru knew about the issue but didn't want to address it under warranty so they issued the TSB only after all the cars were out of warranty and only now when the consumers have to pay out of pocket are they diagnosing it correctly. Also, this issue triggers the check-engine light only occasionally and at random, and when the light goes on all the vehicle safety aids like pre-collision braking and rear cross traffic warnings are disabled. I think this is dangerous because drivers tend to get used to having those features.

Filed Apr 24, 2024 · Driver assistance · MI

While making a left turn out of a parking lot, across one lane of the two-lane road to the middle left-hand turn lane of the traffic signal, the car cut power and issued an alert (which I could only hear - not see due to the urgency of the situation) causing me to almost get t-boned by traffic in the lane that I was crossing. I think the car sensed the stopped traffic I was facing, and the car didn’t realize I was turning left, and “thought” I was going to collide with the stopped traffic, engaging the pre-collision braking system, which was not correct for the situation and almost caused a crash. There is no way to have a dealer verify the issue as it was just situational. There was an emergency warning issued both on the dash (which I couldn’t see due to the urgency of the situation) and an auditory alarm (which I heard as the car cut power to the engine).

Filed Jan 18, 2024 · Driver assistance · NV

On 12/21/23 at approximately 9:19am PST, I was driving [XXX] away from the intersection of [XXX]. This is a divided four lane road (two lanes in either direction). While driving on a winding section of road divided by pillars, my forward collision detection and automatic braking systems erroneously activated when there were no cars or objects in front of me. My dashboard displayed a pre-collision braking warning message and there was a loud beeping alarm. My vehicle rapidly and unexpectedly decelerated. Another driver was following closely behind me when my car rapidly and unexpectedly decelerated. This could’ve caused the driver behind me to rear end me. Also, at various points in the past the forward collision detection system has at time alarmed erroneously without activating the brakes, even when there are no cars in front of me or said cars were very far in front of me and there was no risk of collision. I reported to incident to Subaru and made a service appointment for the issue on 1/18/2024. The Service Advisor advised me that the system has been known to produce false positives. He advised me to disable the pre-collision braking system on windy roads, where the system may incorrectly detect that the car is about to collide with static objects in the median, especially if those objects are reflective. No further service or inspection was performed related to these issues on 1/18/24. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)