2016 Subaru Legacy Eyesight with Lane Keep Assist


2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Sun Aug 02, 2015 12:04 am

This thread will be for discussion on the Subaru Eyesight technology, with much of it being my personal experience with the 2016 Subaru Legacy. The Subaru Outback, with regards to Eyesight and many other characteristics, should be almost identical to the Legacy as both vehicles are built on the same platform.

The Subaru Eyesight feature was one of the reasons I got interested in reading about self-driving cars. I first came across Eyesight when I read this article on the Insurance Institute for Highway Safety website. I was impressed that Subaru made this option available on their reasonably priced Legacy and Outback. More impressive, was that of the seven vehicles that earned the highest "superior" rating, the Subaru models were the best, being the only cars to completely avoid collisions when travelling at 25 mph or less. The only other vehicles to earn a superior rating were made by Mercedes, Cadillac, and Volvo. All of those vehicles are far more expensive.

After reading the article, I realized that for safety reasons I should seriously explore getting a car with these features. I do a lot of driving and have gotten real value out of the Toyota Prius I've driven for the past 6 years. Unfortunately, I couldn't find a reasonably priced fuel efficient car with good crash prevention features. I debated holding off for the new Toyota Prius with the Safety Sense feature, but I suspect that the feature will only be available on their higher trim levels, and it very well may not be as good as the Subaru Eyesight.

As I mentioned, the Subaru Eyesight is one of the few car manufacturers to earn a superior rating. Aside from having this option on a modestly priced car, for 2015 Subaru started to offer the option on their middle trim level, not requiring the top options that other manufacturers seem to do. For example, the current 2015 model Prius does offer a collision avoidance option, but only in the $4,000+ option on the highest trim level. That collision avoidance also only lowered the speed by 5mph when travelling at 12mph and reduced the speed by only 4mph when travelling at 25mph. Additionally, the 2015 Prius does not offer blind spot monitoring, which is another safety feature I wanted. I've noticed more and more ads on TV for cars claiming to have advanced collision avoidance systems. Many of those systems are just alarms or are significantly inferior in the ability to bring the car to a complete stop in time to avoid the accident completely.

Last year I debated buying the 2015 model Subaru Legacy to replace my Prius but I didn't really need a new car. As my Prius is approaching 120k miles, I spent a lot of time researching my options and it seemed the 2016 Legacy with Eyesight was the least expensive vehicle with superior collision avoidance. In fact, I couldn't really find anything cheaper that had more than just collision warnings. While I like to think I'm getting the new Legacy for the safety features, I was excited to see that for 2016 they are no offering Lane Keep Assist. More on that in a bit. I ordered my 2016 Subaru Legacy last month and I'm told it should be arriving next week, almost a month ahead of schedule. This first post in the thread will give information about the 2016 Eyesight features, and once I get the car, I plan to update this thread with my impressions and hopefully even some video.

As I said, the Legacy may be the lowest cost way to get Eyesight right now. It is offered on the cheaper Impreza model, but only if you get the top of the line, which includes many features I don't need. Sure, its nice to have leather and a moonroof, but I have no interest in a navigation unit when my phone does a better job under most circumstances. Additionally, it is not the most updated version of Eyesight and it does not have the blind spot monitoring and lane change assist. The Impreza is quite a bit smaller than the Legacy and in order to get it with Eyesight, it prices out more than the cheapest Legacy with Eyesight. If the mileage was significantly better, I'd consider it. I looked at the Crosstrek Hybrid, but the mileage boost was disappointing. Overall the Legacy meets my needs very well aside from mileage, which is similar to other cars in its class. The 2016 Legacy Premium trim with the Eyesight option has an MSRP around $25,850 and most dealers will willing to discount anywhere from $1000 to $1750, with Grand Subaru discounting it a crazy $2550!! The only reason I didn't order with Grand is that they won't appraise a trade-in until the car arrives in stock. Additionally, their approach is to sell as many vehicles but you wind up waiting about 4 months for your order to arrive. I had no idea what my car would be worth on trade so I couldn't fairly compare offers. I didn't like that and didn't want to take a chance on getting screwed on my trade in, as a few dealers tried to do. I could have always gone the Carmax route, but then you lose the tax benefit of the trade.

Having said all of that, on to the great features of the Subaru Eyesight found on the 2016 Legacy and Outback models:

-- Pre-collision warning
-- Pre-collision braking
-- Pre-collision throttle management
-- Lane Departure warning
-- Lane Keep Assist (new for 2016 on US models)
-- Adaptive Cruise Control
-- Lead Vehicle Start Alert

Unlike most other advanced collision detection systems, Subaru has chosen to use two cameras located on either side of the rear view mirror to evaluate distance from the vehicle in front. Other manufacturers use radar, laser, or a combination. I'll save the pros and cons of the different approaches for another post.

Lane Keep Assist - New for 2016
You can find a decent amount of information about each of the above features except the Lane Keep Assist, which I'll start with and add as much information as possible once I get my car. From Subaru's website:

"New for 2016, in addition to warning when you are inadvertantly (sic) swaying within your lane, EyeSight can also provide gentle steering input to help keep the vehicle's path centered."

I've seen online reviews of other manufacturers' lane keep assist technologies and they range from pretty good to not so good. I'll save that discussion for a separate thread.

Pre-collision Warning and Braking
This is the main safety feature that any car I will buy from no on must have. Of course, there is no substitute for attentive driving (yet), but the reality is that distractions happen while driving. It could be something as simple as looking down to check the time or having something fall off the seat and trying to grab it. I actually find it a bit annoying when I read other people's comments that these sorts of systems are an attempt to make up for bad driving. The reality is that accidents happen and while sometimes no one is at fault, usually someone could have prevented the accident if they acted differently. I should actually be more interested in everyone else using this technology because I feel I am a very attentive driver. Nonetheless, if there is an effective safety feature available that can potentially save lives or reduce injuries, I think it is foolish not to get it, assuming it is affordable.

As for the current pre-collision warning and braking system in the 2016 Legacy/Outback, if you are approaching a collision and giving no indication of braking, the system will sound an alert first. If you continue to fail to slow down, the car will start braking, ultimately braking hard to avoid a collision. The current model is able to detect a collision as long as the difference between you and the vehicle ahead of you is 30mph or less. If the speed difference is above 30mph, the system will still slow the car down to try to reduce the severity of the impact. 30mph is better than most. I don't plan on personally testing this feature, but based on Subaru's materials, about half of owners who have a car with Eyesight believe the system helped avoid an accident. Based on the IIHS tests, the Subaru system is as good as anything else currently available, at least based on how they run their tests. And the system is better than almost all of the other systems. More and more companies are improving their technology in this area, and I fully expect dramatic improvements over the next five to ten years.

Pre-collision throttle management
To complement the auto-braking collision avoidance, the throttle management can also help avoid a collision. If the system detects a collision, it will reduce the throttle, assuming you have your foot on the gas. A common situation I've run into (and fortunately avoided a collision) is when I'm behind a car at a stop light and the car in front of me is turning right, and so am I. I see the car in front start to make his/her turn to the right and I creep up to take his/her place. I look to the left to check for an oncoming car, only to see at the last minute that the car in front of me decided not to go yet and is at a stop. I was looking left so didn't notice they stopped. The throttle management system will prevent you from accelerating when there is a car or obstacle in front of you. Or at least that is how it is supposed to work.

Lane Departure Warning
The Eyesight cameras can detect the road lines and the system will give you an alert if you are crossing the lane markings without using your turn signal. Additionally, it will warn you if you are swaying within your lane.

Adaptive Cruise Control
This is a convenience feature, but one I am excited to test out. Basically it is an advanced form of cruise control - you set a speed and the car goes that speed, unless there is a car in front of you going slower. Adaptive Cruise Control will slow your car down to follow the car in front of you at a safe distance. Once the car in front of you speeds up, your car will speed up too. If the car in front slows, then your car slows down to keep that safe distance. If the car in front of you changes lanes, then your car will speed up to the pre-programmed speed unless another car is in front of you. Subaru's version is very nice because it works at all speeds, meaning the adaptive cruise control can actually bring your car to a complete stop as the car in front of you slows to a stop. It may take me a while before I feel comfortable trusting the system.

Lead Vehicle Start Alert
When at a stop, if the car in front of you starts going, the car will alert you. This seems to be most useful when using adaptive cruise control and the car in front of you stopped. The car will alert you when the car in front is moving again, and then you can easily reactivate the adaptive cruise control.

The 2016 Legacy I ordered also includes blind spot detection and rear cross traffic alert. The blind spot detection will identify a vehicle in your blind spot when you signal that you are going to change lanes. The rear cross traffic alert will inform you when you are backing up and something is approaching from the side. More and more vehicles are offering these options which seem like nice safety features to me.

Once I get my car, I'll update with more details on my personal experiences on the various features.
Rick
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Tue Aug 04, 2015 9:26 pm

A brief update. I found out today that the delivery of my car is delayed for about two weeks, but no information was given yet as to why the delay. I've read that some cars at the Indiana plant were damaged due to hail storms this past weekend, but my dealer said he is trying to get an explanation, not that it will make any difference. So it looks like you'll need to wait another two weeks before I can give my hands on description of the Eyesight features. In the meantime, I may try to put together a seperate post with information on other cars that offer lane keep assist and/or adaptive cruise control which are the basic initial elements of a self driving car.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Mon Aug 10, 2015 1:24 pm

I still haven't found any reviews or videos of the lane keep assist in action, but it does look like there have been some deliveries of the 2016 Legacy or 2016 Outback with Eyesight. I did find Subaru posted the relevant pages of the manual, which can be found here for those interested. Based on the filename, I'm guessing this is the manual for the WRX, but it is probably similar to the Legacy and Outback.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Tue Aug 11, 2015 12:56 pm

Rick, I applaud you with your insight and analysis. I am getting a 2016 Legacy with EyeSight (and therefore Lane Keep Assist). I look forward to your review. Biggest question I have is how long it will keep steering down the road without you touching the steering wheel. Further, if it stops after a certain time, will there be software updates to lengthen that time.
Rich
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Tue Aug 11, 2015 1:49 pm

Rich,

Thanks. I just got a call that my car was delivered last night! I'll be picking it up tomorrow afternoon and I'll try to post an update tomorrow night and see if I can safely figure out how long it will work hands free before deactivating. I saw a video for another manufacturer where the car kept operating hands free but they mentioned specifically no need to attach a soda can to the steering wheel. In other words, I'm sure there are creative ways around it for those who really try. In the video I'm thinking of the driver moved to the passenger seat which is crazy and a good reason to have a time limit. But again, motivated people will find a way to work around it. From the manual I linked to, it looks like the lane keep assist only works between 37mph and 93mph. I'm hoping that speed range will be sufficient on the low end. I'm not a speed demon by any stretch so the top range is more than adequate.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Wed Aug 12, 2015 8:00 am

I look forward to your review...
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Wed Aug 12, 2015 10:30 pm

Here's my initial thoughts, based on about 30 minutes of driving my vehicle home from the dealership, in traffic. I wasn't too bold with testing because of the traffic.

I was in a bit of a hurry at the dealership, but she still gave me a nice, but quick tour of the vehicle. There are plenty of buttons and during her demo, she must have pushed the button to turn off the lane departure warning alert. When I started the car to pull out of the dealership, I saw the lit icon on the dashboard next to the tachometer. I had to go inside to ask how to turn it off (push and hold the button that is down below the left side of the steering wheel with the same icon). Once that was fixed, I was on may way home.

Most of the Eyesight features are on by default - lane sway and departure warning and collision avoidance, but there are buttons to turn these off on the dash, below the steering wheel to the left side. The lane keep assist and adaptive cruise control buttons are on the right side of the steering wheel. When I pushed the lane keep assist button, the icon lit up on the display panel between the tachometer and speedometer. The display panel has most of the information and there are ways to change what information is displayed in some of the sections. It'll take me some playing around to get familiar with the various options and what to push to get where I want. I also went ahead and turned on the cruise control and once I got up to about 45 mph activated it.

When going below 40 mph, the lane departure does work - beeping and flashing the side you wondered over as you cross the line between lanes. I only did this once when going below 40 mph though, but it seemed to work pretty well. I only drove with the lane keep assist on, and once you get up to about 40 mph, the display will show when the system has detected lane markings, by lighting up the line to the left and/or right of the vehicle image on the display. I'd say that it seemed to indicate detecting the lane markings on my short drive about 80% of the time. Again, it wasn't a long ride so as I use this more I'll have more information. When I let go of the steering wheel, the car would NOT steer itself to keep in the center of the lane. Instead, it seemed like the car would just go straight and if the lane turned a little, the car would continue towards the lane marking until it got close, but not quite over the marking. Once it got close, the car would give a gentle, but definitely noticeable, turn to the steering wheel back into the lane. According to the manual, when the lane keep assist kicks in, the icon on the display turns green. I didn't notice this, but I was trying to be careful watching the road, etc. Because I didn't have my hands on the wheel, it seemed at this point the display gave a message to "keep hands on steering wheel". I tried to get a sense of how long the system goes before giving the notice, but I got a sense that it didn't give the notice until you started to wander out of the lane. Most times, it seemed the nudge to move away from the lane marking was enough that if I didn't put my hand back on the wheel, the car would soon cross the lane marking on the opposite side of the lane. If I waited to let the car do this, the lane departure warning alerted, beeping and flashing the lane marking I crossed. Reading through the manual now, it could be that because I had my hands off the wheel, the lane keep assist deactivated and didn't steer me back away from the other lane marking. It'll take some more playing around with it, preferably when there isn't much traffic!

So, my overall impression of the lane keep assist is that it truly is not designed to be a self-steering car, like the video I saw of one vehicle where the driver actually got out of his seat. I'm not sure if the car thought I was still holding the wheel it would have done a better job of keeping me in the lane, but with my hands off the wheel, I drifted towards the side, got nudged away, and then drifted across the opposite lane marking. Even if it continued to be active, I get a feeling that it would have just kept swerving back and forth between the lane markings rather than keeping the car centered.

On to the adaptive cruise control - it was fairly intuitive to activate it, adjust the following distance, and adjust the speed in 5 mph increments. The system does a nice job of adjusting the speed to the car in front of me and if the car in front of me would gradually slow down, my car slowed down too, even to a complete stop a few feet behind the car in front. If the car in front of me had gotten far ahead and then stopped at a stop light, I wasn't comfortable letting my car get close enough to slow down and stop on its own. I prefer coasting and gradually slowing down. I will need to use it quite a bit more to get a better feel for when it will slow down comfortably vs me slowing down on my own. Again - the system doesn't seem to be fully intended as an automated speed control under all circumstances, but it does seem to function pretty well to do just that. When I would let my car come to a complete stop using the adaptive cruise control, the display would indicate the car is in "hold" and the car stays stopped without me touching the brake. When the car in front moves, my car beeps indicating the car in front has moved. I can then hit the resume cruise function and my car will speed up to match the car in front of me, up to the maximum speed I set the cruise for. Overall it worked pretty well. I felt the acceleration was about right to naturally speed up without racing until catching the car ahead or getting to the set speed. It'll take some getting used to the slowing down when the car in front slows down, especially if the car ahead slows down suddenly. The manual does say if Eyesight detects brake lights on the car in front, it will slow down more quickly than if it does not.

The blind spot detection seemed to work, lighting up when there were cars or motorcycles in my blind spot, and if I turned on my turn signal when a car was in my blind spot, the indicator would flash. Unfortunately, during traffic the blind spot indicator was lit a good portion of the time and once I did change lanes even when the indicator was lit and flashing as I could tell I had room and during traffic where I live, sometimes people won't give you a lot of space. I did not have any incidents where the rear cross traffic alert went off. The rear camera was bright and well marked to making backing up easy.

Overall, based on 30 minutes of use, I find the implementation seems pretty good but not to the level of what you would expect in a self driving car. The system was not designed to make the care self driving though. I think the features do make the car much safer and offer some nice conveniences at the same time. As I get more driving time over the next few days, I''ll post some updates.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Thu Aug 13, 2015 7:53 am

Well, I am disappointed in the lane keep assist function as you reported, Rick. I have not tried it myself - I will in a week or so. However, it seems as if the function is in the very early stages or they need a software upgrade. Hope that Subaru does upgrade the software to make the lane keep assist more useful. I did not expect to be able to jump in the back seat - but thought there would be a period of time where the car could steer itself to give you a break.
Rich
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Thu Aug 13, 2015 8:31 am

Rick, take a look at this post about the lane keep assist on the Outback from the following site: http://www.subaruoutback.org/forums/138 ... t-yet.html

"So far it is great. It gently nudges the wheel back to center. You can easily overide it. A few nights ago I tried a test. Put the Outback on cruise control down a rather busy road (empty at the time). Folded my arms and the car drove itself, slightly pinballing back and forth between the center stripe and side stripe. And I like the lane-departure warning, turning it off only on windy country roads. The adaptive cruise-control is fantastic. (I keep adding to this :-) When the lane assist is on it will show two white strips on the dash representing the lines. If a camera loses one, the lane will be removed from the display until the stripe is again attained. Good safety feature."

Looks as if this guy had a different experience than you in the Outback - which is essentially a Legacy wagon. Could it be the road/conditions that you were on that the Lane Keep Assist did not work as expected (or, at least as described above)?
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Thu Aug 13, 2015 4:22 pm

On my drive to work today, I did have a longer stretch without cars near me, but still not a lot of experience with it. It does seem that as you approach the lane markings the icon turns green as it steers you back into the lane. The display does say to keep your hands on the wheel, but I'm not sure it would say that if I was actually holding the steering wheel. Because it was an empty road, I let the car drift to the other side of the lane to see what would happen. It did redirect the car again, but after the third time nudging into the lane it did finally deactivate the lane keep assist. I think the description of pinballing back and forth is a good way to describe it. Perhaps it could keep you in the lane for a long stretch if it didn't deactivate. It'll take more playing around to see if it deactivated based on time without input or based on number of times it needs to activate without sensing input. Of course I'm curious to see how it would do if it didn't deactivate, but I haven't had time or a stretch of safe road to test it enough. People getting out the seat should be arrested if caught. At some point I do want to put together a thread of the different vehicles that have lane keep assist. I'd love to personally test them all out and see how much better or worse other implementations are.

The reality is, at this point it is a nice safety feature but I think it really portends what the near future will hold.

I have found the adaptive cruise control is excellent. I only felt a need to step in twice today, but mostly because of my cautiousness. The first was when a flatbed truck pulled right in front of me going slowly. I'm certain my car would have slowed down appropriately, but I wanted more distance. The other time was approaching a red light and another car was already stopped. I like more gradual stops as opposed to waiting to see if the automatic braking will kick in. Subaru did a very good job implementing adaptive cruise.

I look forward to getting your impressions when you get your car.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Thu Aug 13, 2015 5:57 pm

A little more feedback, a bit more positive, but still in the early stages of testing it out. Part of my initial tests were a bit worse than expected because I was trying to see how long I could drive with no hands before it turned off. In hindsight, it should have been obvious, that the steering correction is not designed to be when you have no hands on the wheel and that is why the correction seemed to oversteer towards the opposite side of the lane.

Based on my testing on my drive home today, as I approach the lane marker, the lane keep assist icon turns green and the steering wheel is turned towards the center of the lane. If I have my hands off the wheel, the display notifies me to keep my hands on the wheel. If my hands were on the wheel, however, the car does not give me that warning. It seems the car detects whether you are holding the steering wheel based on the resistance it senses. Also, if I have my hand on the wheel, even with just a little pressure, the amount of correction is much more appropriate and I can see the lane keep assist keeping me appropriately in my lane for a more extended period of time. I'm not sure how well it will do around more than slight curves and I was reminded to be VERY careful when testing this.

I thought I was in a fairly empty area of the highway, in the middle of three lanes - a perfect place to be testing this. I was approaching a slight bend in the highway to the left, seeing how the car will react as I drift towards the lane marker on the right side of the lane. As I'm approaching the curve, going about 55mph, another car passes me on the right going about 80mph. Idiots, but I guess I wasn't being particularly smart either.

In summary, please be careful when testing this. My goal is to get more safety features added to cars in the long run, and the way to do that is for there to be fewer accidents reported with cars with these features. Unfortunately, there will be some additional accidents from the idiots like in the videos who actually get out of their seats to show off. Please don't do that!
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Fri Aug 14, 2015 9:44 am

I guess that is why they call it Lane Keep Assist versus Active Lane Keep Assist...
Rich
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Thu Aug 20, 2015 1:05 pm

Rick, I finally got my Legacy with the EyeSight option which includes Lane Keep Assist! It is a great car but my favorite safety/convenience feature is the Adaptive Cruise - it worked perfectly - I am still surprised that it stops the car when the car in front stops.

Now, for the Lane Keep Assist, my experience was much like your first time: The car was moving back and forth between the lines instead of keeping in the center of the lane. There was one time that it crossed over the line even though the line was showing on the dash. Otherwise, it felt like bouncing between the lines. If I had my hands off the wheel for just a few seconds, there was a warning to put my hands on the wheel.

I am confused as to why it cannot keep the car in the center of the lane. If it can read the lines on both sides why does it have to wait to adjust until it gets all the way up to the line. I know that this is not an active lane keep assist - but it would be so easy to do (based upon my very limited knowledge of the technology). Still, it is a great idea that is the early stage of development. No self-driving car here. It is helpful though - especially if you are tired or distracted.

If you have any further experience, knowledge, or insight, let me know. I only got the car last night and did a small amount of testing.
Rich
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Iznogould » Tue Aug 25, 2015 4:20 pm

I just tried the Lane keep assist function on the outback, and the experience is pretty much as Rick described it.
I had also tried the Lane keep assist on the 2015 Honda CRV. The Honda's lane keep assist functions much better. It actually adjusts to hold the car in the center of the lane and does a smoother job doing so. Thus it elicits much more confidence in this particular feature than the Subaru. I wonder if Subaru is listening and could possibly update this feature on the 2016 models.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rich » Wed Aug 26, 2015 3:01 pm

What is the technology that Honda uses versus Subaru?
Rich
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Wed Aug 26, 2015 3:24 pm

They call it Honda Sensing, which is the suite of several technologies like Eyesight. When I get a chance I'll put together a full post on the subject. For the lane keep assist, it looks like a similar approach to Subaru, using a camera mounted behind the rear view mirror to detect the lane markings. It works between 45-90mph and if you start to drift towards a lane marking, it provides a gentle torque to the steering wheel. So in principle it sounds very similar to the Eyesight lane keep assist. I'll have to try it at some point personally to see how much differently it operates in the real world.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Sat Aug 29, 2015 10:01 pm

I've been wanting to do my own video review and demonstration of the lane keep assist, but I haven't had time. I also haven't really found a good place to do a demo as I'm usually driving when there is a decent amount of traffic around me. Also, I'd want to do it when I have someone else in the car to do the video work as I just don't feel it is safe to drive and try to make a video at the same time. I did notice that someone posted the following video to the Outback forum and I think it is a decent review of the lane keep assist, starting at around the 5 minute mark of the video.

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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Beth » Sun Aug 14, 2016 5:47 pm

I am considering buying a 2016 Subaru Outback with Eyesight. I had a question about the lane detection system....what happens if you have to swerve out of the way of an animal for instance? An animal can be unpredictable and the system that detects that may not be able to negotiate that and brake in time (and braking may not be what you need to do or might be too late). I heard an anecdotal story of someone with this kind of system (not necessarily Subaru) and they were unable to do this kind of manuever.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Sun Aug 14, 2016 11:10 pm

The lane keep assist is very easy to override with turning the wheel wherever you want to go. It is easiest to describe as the lane keep assist will apply gentle pressure to the wheel to keep you in the lane. It sometimes is so gentle I barely notice it and have to look at my dash to see if it has activated.

In the situation you describe, what would happen is you would turn the wheel to avoid the obstacle, your car would go where you steer it, but as you approach the lane markings, you'd feel a slight resistance pushing the wheel against you. It is very easy to override, especially if you were trying to make a hard turn.

The system is by no means an automated driving system. The adaptive cruise works very well for speed. The lane keep assist is really just a gentle nudge when starting to cross a lane marking, not much more. If your hands aren't on the wheel, it is usually enough to keep you from crossing the lane, unless the road is turning. Without my hands on the wheel, though, it usually will start pointing the car towards the opposite lane marking. It doesn't keep you locked to the center of the lane, just makes corrections if you are going to leave the lane. Again, it is very easy to override it.

It would be best to test drive a car with Eyesight and lane keep assist if you had any concerns, but I know when I got my car there were no eyesight vehicles to test drive. Based on what you are describing, though, I wouldn't hesitate to say Eyesight does not have that problem.
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Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Brian » Tue May 30, 2017 11:30 am

I have a 2017 Subaru Forester with that Lane Keep Assist and I've turned it on once or twice to see what it does, but I don't see any point to it. If you can't stay in your lane (bad driver, falling asleep...??) it only does so much. If you're a good driver, you don't need it. So what good is it?
Brian
 

Re: 2016 Subaru Legacy Eyesight with Lane Keep Assist

Postby Rick » Tue May 30, 2017 11:34 pm

Brian,

I think there are a few situations where Lane Keep Assist could be helpful. First, there are times where you may get distracted from the road. Of course a perfect driver never gets distracted, but most humans I know have situations such as dropping an item that needs to be moved away from the pedals, or even just looking down at the air conditioner to adjust the temperature. More dangerous situations are when someone is driving and getting tired. The lane wander alert is very helpful as it will alert the driver that they are much more tired than they realize. Have the lane keep assist kick in will also notify the driver that they are either distracted or not alert enough to be driving.

Having said that, I do agree that the Lane Keep Assist is not some major safety feature. In fact, if it were too good, it would likely lead to more distracted driving as the driver could rely on the car to drive for them. I look at it as a step towards fully autonomous driving, but a very small introductory step.
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