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I have 2020 GLS 450
4 times I left my car on dealer, they changed some parts at every visit, last time they kept my car 12 days, yesterday I’ve picked the car and after 30 miles of driving same problem reappeared,sometimes it is enough to drive a couple minutes to see this problem.
As you see on my pictures, I have sign on cluster and active lane change assist telling “function unavailable”. Sometimes after a couple miles sign disappears by it self, sometimes after when I turn ignition OFF then ON. At same time active lane change assist start to work again.
they changed front cameras, lenses, some another tings in front of my car.
I think problem can also be in the rear of the car(sensors,camera)
Any suggestions?
Thank you.
P.S. forgot to say, after 1st visit to the dealer( was replaced front windshield camera and lens) traffic sign assist doesn’t show correct speed limit on the road.lot of times I see on the cluster 55mph, but on the roads another speed limits.
Last edited by Fishlover; Mar 16, 2022 at 06:18 AM.
I have 2020 GLS 450
4 times I left my car on dealer, they changed some parts at every visit, last time they kept my car 12 days, yesterday I’ve picked the car and after 30 miles of driving same problem reappeared,sometimes it is enough to drive a couple minutes to see this problem.
As you see on my pictures, I have sign on cluster and active lane change assist telling “function unavailable”. Sometimes after a couple miles sign disappears by it self, sometimes after when I turn ignition OFF then ON. At same time active lane change assist start to work again.
they changed front cameras, lenses, some another tings in front of my car.
I think problem can also be in the rear of the car(sensors,camera)
Any suggestions?
Thank you.
P.S. forgot to say, after 1st visit to the dealer( was replaced front windshield camera and lens) traffic sign assist doesn’t show correct speed limit on the road.lot of times I see on the cluster 55mph, but on the roads another speed limits.
I know exactly what you're talking about.
I get that a few times a week. like you said, most of the time, it'll clear out eventually and I get the function back.
My independent shop guy suspects that it's the camera up front on the windshield. if it can't clearly see the road up ahead. or if it can't decipher what it sees, then that error would pop. I don't think it has anything to do with your rear sensors.
I took my GLS to the dealer a few times. I've been told that there's nothing that they can do unless the problem happens on regular basis in repeatable fashion. I showed them my pictures and I even took the video.
....but they can't do much unless they themselves can replicate..... frustrating...
I get it all the time. I don't think its something that can be fixed. Sometimes its random, sometimes it seems to happen when I turn into the sun, or its raining or the windshield might be dirty, etc.
The speed limit comes from the same camera reading the signs and it often can miss them so it still shows the limit from the last sign it saw. I've exited a freeway and driven 2 miles down a small side road while it is still showing 65mph.
None of these features should be relied on for safety and this is exactly why self-driving cars will never be 100% reliable.
I get it all the time. I don't think its something that can be fixed. Sometimes its random, sometimes it seems to happen when I turn into the sun, or its raining or the windshield might be dirty, etc.
So let me correct myself. Last time I was getting service the advisor saw the "camera view restricted" message and suggested I get it fixed. It took them a couple of days but they said they took apart the camera and cleaned it and sure enough I don't see this message anymore. Definitely get this checked out if you see this message all the time.
I had the same problem and they looked at it during the B service. The advisor wasn't quite sure about the solution, but the techs scanned the car and got GPS error codes meaning there was a loss of GPS signal...not sure the advisor bought that, I know I didn't. They did some smoke and mirrors stuff and the problem went away...it's been a week, I'll see if it really fixed it.
I bought a windshield camera on eBay, went to an independent Mercedes auto repair shop to calibrate. Since I did this in April, I have never had a problem again.
Last edited by Fishlover; Dec 17, 2022 at 08:13 AM.
I get the same thing for the automatic high beam headlights sometimes too. The windshield is clean. I’m about to install one of those fitmax cameras and think I will try to clean the lens and while doing the install.
I wonder if that part of the windshield is just hazy by the outgassing process of a new car. I’m sure you’ve seen those windshields before that have that hazy buildup on the inside. If the camera is not sealed to the windshield itself, then I’m thinking there really isn’t anything that would prevent the haze from forming on the lens and thst part of the windshield too.
I get the same thing for the automatic high beam headlights sometimes too. The windshield is clean. I’m about to install one of those fitmax cameras and think I will try to clean the lens and while doing the install.
I wonder if that part of the windshield is just hazy by the outgassing process of a new car. I’m sure you’ve seen those windshields before that have that hazy buildup on the inside. If the camera is not sealed to the windshield itself, then I’m thinking there really isn’t anything that would prevent the haze from forming on the lens and thst part of the windshield too.
as I mentioned earlier, I get these errors sometimes now and then. then it'll clear it self up again in a bit, most of the times. annoying but I learned to live with it over the years. my GLS580 was one of the very first produced back then.
I just picked up a brand new custom ordered GLB35 AMG. a brand new build with every conceivable options. And when it arrived, it threw 4 different assistance system errors.
my service department discovered that the vehicle needed FIVE modules of software updates... WTH????? a brand new vehicle from factory???
and with all the software updates, my GLB works just fine now.
since my GLS was never been s/w updated, I'm curious to see how many s/w updates are due.
hopefully, it'll have some updates and the annoying assistance errors will be gone perhaps??? fingers crossed.
my point here is that just because your car is relatively new, or even completely just arrived new, don't assume all the software is up to date.
I got that same error message at least once each time that I drove my 2021 GLS 580. On longer drives, the message would appear multiple times. On my second visit to the dealer for this problem, some error codes were found and the camera was replaced. It only took the geniuses sixteen days to get to that solution. I have driven the car three times since getting it back and have not seen the camera error message. Is it fixed? The probabilities are that after fiddling around for sixteen days, they did not fix the problem, but we shall see.......
Hi everyone - thought to chime in here, as it seems I have a finally found a group of similar people with this issue I have been trying to find a solution. My 2020 GLE has this problem with the active lane change assist feature self deactivating on its own intermittent cycle for unknown reasons. This vehicle is still under warranty and has seen the dealer 5 times to try and resolve. Although the dealer has told me that they have over the repair visits, stating they have changed things but I still see the problem almost immediately after the car is returned. Out of all the active system features all active and functioning as expected, the active lane change assist system seems to self deactivate at its own leisure. I have also reset all software settings to factory removed profiles etc. nothing helps. But I have to manually enable the auto lane change assist feature and it works perfect fine…other than it may self deactivate either in the same day or a day or two later? Seems no one here has a permanent fix. I have raised a case with Mercedes Australia to see if they can get involved to resolve this problem. I take this has a matter of principle as an expensive vehicle under warranty should have all functionality operational as expected. If I do find a fix will keep you posted.
9129845]It will deactivate if lane markings are faint, obscured, or in fading light.
The dash will show a greyed out icon. And it will "re-arm" when it can see well again.
Is that your issue?
Thanks mikapen, much appreciate your reply in help. The issue is that once the feature self deactivates, it does not re arm / self re-enable. I have to manually enable auto lane change assist. Thanks The feature is not greyed out but actually self deactivated, and I have to touch this screen feature to enable.
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