My Subaru Crosstrek’s Lane Assist Suddenly Jerked To the Right Heavily and Instantly I Collided With the Vehicle On My Right Side

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Toby Marzell doesn't trust the lane-keep assist feature on his Subaru Crosstrek anymore after he believes it caused him to swerve into another car and cause an accident. Here is Toby's incredible story. 

Toby says his Subaru Crosstrek's lane keep assist caused his vehicle to collide with another vehicle.    

Toby Marzell bought a 2021 Subaru Crosstrek because of his adventurous lifestyle. He likes to drive his small SUV to go skiing in Canada, hike in the mountains, and take road trips. It was the perfect vehicle until he was driving to work in October. 

A report from CBC News Canada says he doesn't think he'll ever use the lane-centering feature on his Subaru Crosstrek again after he believes it caused an accident during his morning commute last month.

Toby put a post on a Subaru Crosstrek Facebook group page.  

"Hi everyone! I'm reaching out to find out if this ever happened to any of you. 

"This morning, I was on "auto steer" while holding onto the steering wheel when all of a sudden, the steering wheel decided to jerk to the right heavily, causing the vehicle to collide with another vehicle."

"I was driving the car normally like any other day and HAD FULL control of the car, except this sudden turn was pretty aggressive, and by the time it jerked, it was already too late. This was in a curve going around 70MPH / 115KM/H. After speaking to the police, apparently, this has been happening a lot, especially with cars that use lane assist instead of full autopilot." 

"This may be a long shot, but does Subaru cover any type of damage? I find it fairly dangerous that the steering wheel can suddenly shift at any moment.."

On his morning commute, 

The CBC News report says Marzell was driving on Highway 30 near Brossard, Quebec when he noticed the steering wheel tugging him to the left. As he headed into a curve, Marzell said he adjusted to keep the car to the left of the center line.

Suddenly, the steering "decided to jerk to the right heavily, and instantly, I collided with the vehicle on my right side," said Marzell, traveling about 60 miles per hour.

The 23-year-old mechanical engineer lives in Montreal, Quebec, and drives back and forth to work about two hours a day. It can be exhausting, so he often switched the lane keep assist feature on.

"You don't always have to be firmly gripping the steering wheel and having to correct all the time," said Marzell, 23. "It lets drivers relax a bit."

What is Subaru Lane Keep Assist?

Subaru Lane Keep Assist is an intelligent driver assistance system designed to encourage safety on the road by helping drivers remain within their lane. This functionality is sometimes called "Lane Centering" in Subaru vehicles. 

Subaru says, "A lane keep assist-equipped vehicle can offer drivers an additional measure of safety accounting for human error, driver distraction, or fatigue that could lead to loss of steering control or a collision."

Toby says after he purchased the Crosstrek, the lane-keep-assist feature was much more subtle, and the tugging would stop as soon as he'd correct it.

The report says that in the past few months, he felt the wheel tug much more aggressively, but it was nothing like what he experienced the day of the accident.

Toby's Subaru Crosstrek had damage to the bumper, headlight, and hood after it collided with another vehicle while he was using the lane-centering feature. 

"Even the police officer said that it's something that's been happening more and more with these newer vehicles," said Marzell. "It's honestly kind of scary."

CBC News asked Quebec provincial police if they see more accidents related to lane-assist features, but they declined to comment.

Thankfully, neither driver was hurt. But he is at fault for the roughly $10,000 in damage to his vehicle and about the same amount to the other driver's vehicle.

Transport Canada and Subaru are investigating what caused the collision.

Transport Canada and Subaru Canada are trying to find out what happened and whether it relates to the EyeSight advanced driver assistance technology offered in all new Subaru vehicles.

"Active lane centering is really to help you negotiate small turns, just to alleviate the task of driving for a long time," said Jesse Caron, an automotive expert for the Canadian Automobile Association (CAA) in Quebec.

Toby took his Crosstrek to the Subaru dealership to have the windshield replaced. Usually, this calls for a complete re-calibration of the EyeSight Driver Assist System, which uses a stereo camera system mounted behind the windshield to monitor the road ahead. Marzell said he now wonders if it wasn't calibrated properly. 

Caron says it will be hard for Marzell to prove the car malfunctioned or caused the accident.

"When there's an electronic component, it's often difficult to duplicate, and if it's not recorded, you have to wait for other people to report similar problems," said Iny.

In an email, Transport Canada said it's aware of a recent incident involving a Subaru Crosstrek and is closely monitoring any developments. Subaru Canada said it values the safety of its owners and is investigating this incident.

In 2021, I reported that a lawsuit was filed against Subaru. 2021 Subaru Crosstrek, Forester, Outback, and other models were included. The class-action lawsuit alleges that the owners claim that Subaru's EyeSight includes automatic emergency braking (AEB) and that lane-keep assist technology is dangerous. 

The Subaru lawsuit says the EyeSight's lane keep assist feature is defective. It alleges errors in the system, such as "correcting the vehicle's steering when the driver is trying to change lanes, driving on the road with construction barriers, or if the road has multiple lines due to construction."

Check out my report here for more information. 

Toby Marzell doesn't think he'll use the feature on his Crosstrek or any other car again.

"I just don't trust it anymore," he said. "I always want to be 100% in control of the car from now on."

We want to hear from you.

Have you experienced the lane-keep-assist feature malfunction while driving in your Subaru vehicle? If so, click the red Add New Comment link below and let us know.

I am Denis Flierl, a Senior Torque News Reporter since 2012. My 30+ year tenure in the automotive industry, initially in a consulting role with every major car brand and later as a freelance journalist test-driving new vehicles, has equipped me with a wealth of knowledge. I specialize in reporting the latest automotive news and providing expert analysis on Subaru, which you'll find here, ensuring that you, as a reader, are always well-informed and up-to-date. Follow me on my X SubaruReportAll Subaru, WRXSTI, @DenisFlierlFacebook, and Instagram.

Photo credit: Denis Flierl via Subaru Crosstrek Facebook group

Submitted by Daniel Saccardo (not verified) on November 20, 2024 - 4:25AM

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Yes, I have had this happen to me on more than one occasion driving a 2024 Subaru Crosstrek Wilderness while using the lane assist. Very scary when the car almost jerked me right into a truck in the lane to my right. Each time I was able to correct in time, but just barely.

Submitted by Rachelle (not verified) on November 20, 2024 - 4:33AM

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I own a Subaru Forester 2022 and I've had issues of the car suddenly jerking to the right. Thank God there wasn't anybody next to me when it happened. Both of the worst times was when the lanes split to an off ramp and the lane correct tried to jump into the right lane that was splitting away from the high way instead of maintaining straight in its correct lane. This correct was not a light correct. It was a sudden violent jerk to the right. That made me strong arm it back into my lane. Scared the living day lights out of me the frist time it happend becuase I didn't understand why it jerked so hard. Now I'm just trained to shut lane correction off if I have an inkling the computer may get confused about any weird lanes situations.

Submitted by Dorf (not verified) on November 20, 2024 - 5:35AM

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In all fairness, the lane centering doesn't function unless cruise control is on. A simple tap of the brake is all it takes to completely disable it. I've had plenty of instances on longer road trips where the lane centering felt a little wonky especially around tighter curves, and I just tap to brake to regain full control before something bad happens.

Actually that’s not true. I’ve never used cruise control on my 2023 Subaru Forester Wilderness Edition and I’ve had this problem with the lane assist on more than one occasion. It’s been scary a couple of times for me and I hate that you have to keep turning it off.

Fyi.. I DO NOT, NOR HAVE I NEVER SET my cruise my cruise control on my 24 Crosstrek altho have had my lane assist "centering" option set "On" since before I left the dealer. Although I do notice the slight tug bringing my car "back" proving it does work ... and WITHOUT Cruise Control.
It's something I've been concerned about since day 1... I didn't feel a need to enact but gave it a try as suggested by the salesman, being assured and since feeling that I could override the small tug if I want to... tho Ithankfully I haven't experienced any peculiar. It's sure understandable how a system can become faulty and it sure raises cause for concern. I've driven for 45+ years without some "safety" features cars now offer which I've never needed before and altho they may seem good, I still prefer vehicles without all the bells n whistles that raise the initial cost add additional risk for more to go wrong BESIDES leaving some drivers more reliant on what the vehicle offers than their own safety skills and best practices they should always be utilizing.

Submitted by Mark Sharky (not verified) on November 20, 2024 - 5:48AM

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I have also noticed when driving at high speeds the lane assist does tend to pull in uncomfortable direction. I turn it off now when I'm going by semi trucks or when there are construction areas. So yes it's definitely not perfect. I also turn it off when going above 45 mph on windy roads cuz it seems to flash on and off which I think is unsafe. You'd figure that the system would get smarter the more it's used, but it seems quite the opposite. I still love my Subaru but the technology needs to improve.

Submitted by Michael Katona (not verified) on November 20, 2024 - 6:50AM

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I stopped using lane keeping assist. Thankfully, it's never caused an accident but the system frequently jerks aggressively to one side or another on the highway. I have a Hyundai palisade with a similar system, and the Subaru is clearly inferior in trying to keep the car centered in lanes.

Submitted by John Fitzpatrick (not verified) on November 20, 2024 - 7:21AM

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Have 2016 outback. Have had lane assist cause car to pull suddenly when not wanted. Thought first time wow what gust of wind was none
Very Dangerous feature. For high speed driving. It fights you turning when need to

Submitted by Mike Kepler (not verified) on November 20, 2024 - 7:24AM

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My 2024 Outback does this quite a bit. Especially on curves. Ran me off on the shoulder, very hard, couldn't pull hard enough to correct. Then it disconnects and takes a second for the wheel to respond. I do not use it anymore. Also in cruise control, very hard braking on cars slowing in lane next to you. Annoying and dangerous.

My 2016 Outback also randomly slams on the brakes on the highway when someone is exiting in the lane next to me, but then doesn't work at all when it's actually needed. It's incredibly unsafe.

Submitted by Jay smiles (not verified) on November 20, 2024 - 8:16AM

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I have had many rental cars with lane centering. It always interrupts smooth lane changes and tries to hit the barrels in construction zones. Best to disable it. But yourself a coffee and stay awake

Submitted by Steve (not verified) on November 20, 2024 - 9:18AM

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I've has a '22 Ascent since it was new. I NEVER use the lane assist function is it is completely unreliable. When I first bought the vehicle and tried lane assist it would always favor towards the center line of the road to the point it was concerning to myself and on coming traffic. It would constantly turn itself off on roads with repaired surfaces or construction cones. Honestly I would be fighting g the steering wheel the entire time lane assist was turned on, so I completely gave up. I've rented tons of other brand vehicles through my job and I have never had a lane assist function give me second thoughts. Subaru eyesight is a different story, unsafe and unreliable at best.

Submitted by Gary B (not verified) on November 20, 2024 - 9:33AM

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My Forester suddenly veered to the right trying to steer the vehicle to a highway off ramp which I did not intend to take. I had to take aggressive action to keep the vehicle in the through lane. I am under the impression the system misinterpreted highway paint markings. I don't use the lane centering feature anymore as a result of this.

Submitted by Mjfus (not verified) on November 20, 2024 - 9:38AM

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I own a 2016 Subaru Legacy and I use the full eyesight features every time I am on the highway or in heavy traffic. I have never experienced any errors or failures with this system. Milage is 61k +.

Submitted by Daniel Mendiguchia (not verified) on November 20, 2024 - 11:08AM

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We have a 2021 Outback Touring XT. The problem described in your article sounds like the same issue our car displays. What I have observed is that lane centering works fine on straights but as soon as it enters any curves it will begin tugging to the right or left (curve direction dependent). It feels like the lane centering is treating curves like a series of straight lines requiring constant correction to maintain its lane placement. This is definitely not just annoying, it's dangerous as the steering control becomes somewhat unpredictable. It is bad enough that I always turn off this capability when entering any curves. If we are driving sections of any roads with a lot of curves, I just turn this feature off. One other point regarding "eye sight", we haven't had our system recalibrated, to the best of my knowledge. I believe that their system just has some fundamental flaws. Needless to say I do not completely trust it and Subaru should fix whatever sensor/ software/ mechanical problem they have before fender benders turn into fatal crashes.

Submitted by Justin (not verified) on November 20, 2024 - 12:02PM

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I have a 2021 Crosstrek sport. I drive over 1000 miles a week, mostly highway. This has happened to me SO many times over the years. It'll all be fine and out of nowhere the wheel jerks while assist is on. I rarely drive with it now since I don't trust it. I live in New England so our roads aren't the best at times but never could correlate why it happens.

Submitted by Everett Hix (not verified) on November 20, 2024 - 12:24PM

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I have a 2023 Subaru Outback and I despise the lane assist and collision avoidance in this car. It has nearly caused multiple accidents and often slams on the brakes when confused by construction cones/barrels and other cars. Shadows from tractor trailers also cause the lane assist to pull towards the back side of the trailer on the interstate. Not helpful at all and can only partially disable the system. I love the car just wish there was a way to disable these junky safety systems.

Submitted by A Swinton (not verified) on November 20, 2024 - 12:47PM

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This has happened to me several times in my 2022 Legacy. It is really scary. I will be driving along and suddenly the wheel will jerk (usually to the left). Thankfully it has not caused any accidents but after reading this I am going to keep it off.

Submitted by Marc Turgeon (not verified) on November 20, 2024 - 1:07PM

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Yes, 2020 Subaru Outback.
Do not trust this driving option on curves - straight aways seem cautiously ok. On slight to moderate left curves the system has tugged (like it is loosing control) or kept the car moving forceably towards an adjacent car or truck. I do NOT use the system ON CURVES. 11202024. Marc

Submitted by Gary wiltbank (not verified) on November 20, 2024 - 1:23PM

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I have notified subaru customer advocacy division as well as local dealership with not much reception to put it mildly. Much of this expensive technology is unnecessary and not wanted by so many, more importantly it is a major distraction and I have stated to MANY, it will be the cause of accidents as previous individuals have stated. Manufacturers and dealerships should be held liable, the technology is a major distraction, all elected officials please contribute here, this crap is putting us all at risk, and as stated to subaru, I have no problem testifying in legal battles after collisions what I have experienced, gary wiltbank, nys

Submitted by Jeff West (not verified) on November 20, 2024 - 1:32PM

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I have had our US 2025 Forester Touring try to steer stronger for no real reason one time and have only owned it for 1500 miles. It came out of nowhere and startled both me and my passenger.

Submitted by Quentin (not verified) on November 20, 2024 - 3:18PM

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I have had a similar issue to this in my wife's 2022 outback wilderness. It did not result in an accident though. I have also stopped using the lane assistant because it scared me. I have noticed it will seem to build up resistance with my hand on the wheel and start to fight me, then if relax my hand the wheel will violently pull in the direction of the resistance, it will pull hard enough and fast enough that it will change lanes without warning. It is super dangerous. I also can't imagine what would happen if it was icy outside. I am sure this will be an issue and I hope no one suddenly has their car steer them into a large truck or off the side of a cliff.

Submitted by Steve Akker (not verified) on November 20, 2024 - 3:38PM

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My wife's Legacy is equipped with Lane Assist and have never had a problem with its function. I'm guessing there is alot more to this story than what we are being told . It's not Subarus problem you aren't an attentive driver ! Was probably on his phone ...

Wow, how rude and judgemental!
I have owned 2 Subaru foresters now, both of them have had lane assist problems on a couple of occasions. Nothing to do with bad or inattentive driving, just bad lane assist that “sees” lines on the road that are not there. Hope it doesn’t happen to you because they can be scary.

Submitted by Craig Larpenter (not verified) on November 21, 2024 - 12:36AM

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I can attest to what he's experienced and often think my 2021 Crosstrek needs to be calibrated as well. I trust it most at slow bumper to bumper traffic but in heavy fast moving traffic, not so much.

I've often wondered how others have experienced their vehicles and am glad to read this story, albeit sorry to hear about his accident.

Thanks for publishing this story and keep me apprised on any other developments.

Submitted by Rebecca Duncan (not verified) on November 22, 2024 - 5:12PM

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I have three Subarus and always keep the lane centering off. I find it annoying and not very helpful.