LDA Does Not Pick Up Lane Info Correctly

Hi everyone. I just bought a Prius Three and I noticed the LDA system worked terribly so I would like to ask for everyone's help to see if anyone has encountered the problem before and how to fix it.

The problem is the system does not recognize the lane markers at the start of each trip, but if I go on a highway for around 10 miles+, it starts to work perfectly for the rest of the trip. I know the system did not recognize the lane markers because on the dash screen it did not show a solid line but instead two parallel lines on each side, which in the manual shows it means the car does not recognize the lane markers.

Here's an important piece of information. I found out that the windshield has been replaced before. And it's not OEM glass now. So I suspect it needs a camera calibration. So the dealer helped me take the car in to Toyota Escondido for a calibration. And it STILL performs this way. The calibration did not fix the problem. And the grumpy technician at Toyota Escondido took me for a test drive and told me there is not a problem and the system is not designed to work all the time. Can anyone please confirm that this is not how it's supposed to behave?

Here's a video showing my 10-minute drive on the highway. You can see the system starts to work after around 6:30 in the video.

I am really confused now. I suspect it's because the camera was not correctly installed that it's beyond the capability of the calibration to let it work correctly. And maybe the car learns a little bit each trip after driving for a while and that's why the system works after driving on the highway for a while.

What do you think? Thank you in advance for any thoughts you share.

 

Thank you for your input. However, I think that might not be the issue because the malfunction always happens for the first 10-15 miles but afterwards, it works very effectively regardless of the road condition. I live in the sunny San Diego and I think the conditions are usually met.

Thank you so much for confirming the issue. You are right, I did not purchase the car from a Toyota Dealer. But ironically the dealer Escondido Auto Supercenter is actually very helpful in helping me to get this fixed. They do not seem to be previously aware of this issue and they have already paid to get me a camera calibration. The problem is the dealer that performed the calibration Toyota Escondido do not want to acknowledge the malfunction. They believe they did everything right and the car is working as designed regardless of me showing them the issue in a test drive with their technician. I think they are not fully aware how it is supposed to function and count on the rare cases that it actually works when the LDA alarm goes off to indicate the system is not faulty. They also made their case by saying there is not an error code generated in the system. I am sending them the video and hopefully, they can come to their senses and help me get this fixed.

Thank you for your reply. The RADAR Cruise works well. I did not turn that on in the first half of that trip showed in the video to avoid complication. I can say that regardless of if the LDA works well or not, the RADAR cruise control behaves as expected. I do not know how it's gonna perform in corner cases when it requires the camera to better understand the road conditions, but generally speaking, it is reliable for my daily use.

 

The Lane Tracing Assist in Toyota Safety Sense 2.0 for 2019 Corolla Hatchback seems like an exciting feature like what we wished to have. If only there could be an upgrade for current cars that would be awesome but I know that's highly unlikely for traditional car manufactures.

 

I agree with you. I think the problem should be the installation. The automatic high-beams work okay. I think it worked as expected. I only have maybe a few opportunities to try that out and it seems to work correctly. I bought it from a dealer that has an in-store warranty. They agreed to get it fixed at a Toyota Dealer at no cost to me but the problem is the Toyota Dealer does not recognize the problem. They performed a camera calibration but that did not solve the problem.

 

Yeah, that's my understanding as well. I think everything works fine except for LDA. I have not been able to test the corner cases like a crazy curve that may require the camera to work with the Radar, but generally speaking the cruise function hasn't surprised me negatively.

 

That could be the case. I will ask the Toyota dealer to see if they are certain they performed the calibration correctly. Considering they didn't even know how the system is supposed to behave, I should have asked them to clarify more. However, they did charge the dealer I bought the car from the correct price for camera calibration. ($403, but discounted at $266.)

 

You are right lol. Mossy Toyota in San Diego says that in the report. However, Kearny Mesa Toyota's technician was able to confirm the malfunction. What's inconvenient for me is the dealer have the calibration done at Toyota of Escondido. That's another one I don't have a report here.

 

That's what I demanded, but they told me they don't have one available at the moment but says I can pay another $135 diagnose fee and they'll do a test drive with another vehicle to compare with. I am bringing this up to BBB if they don't get back to me with a solution soon. The dealer I bought the car from is also working with me to get this addressed.

 

Hmm, I mentioned earlier that the windshield has been replaced with a non-OEM glass so that voids the manufacturer's warranty. However, the dealer is willing to fix this for me. The problem is the Escondido Toyota Service department does not recognize this as a problem and had already performed calibration(did not solve the problem). When you said "Pixel2 are you referring to the device I used to record this? I actually did it on my action camera".