LDA Does Not Pick Up Lane Info Correctly

I checked mine extensively today - it's nothing like yours. At a constant 62 MPH, it should be working fine, and it should kick in at much lower speeds than that (32 MPH it says in Manual). There are a few things listed in the manual which must have something to do with the LDA - headlights, grille, suspension and windscreen - ie, not just windscreen:



Has the dealer checked for malfunctions in the Computer? Being intermittent, I'd be suspecting a hardware or software fault.

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In relation to RADAR Cruise - in the Manual it indicates that it uses the Camera Sensor as well - which is why I asked whether RADAR Cruise was working properly. I could be wrong - but if so, I'm not sure why they mention the Camera Sensor. (Similarly it mentions it for PCS.)

 

So here's a thing that might be relevant...

On my previous car I had to hide my dash cam wire behind the plastic cover that fits over all the electronic stuff around the mirror (LDA camera, rain sensors etc). This cover included an internal shroud that fitted around the LDA camera. I hadn't pushed it back snug to the glass, so there was a gap at the front edge big enough to fit my little finger in.

This really messed up my LDA, due to it letting light in that was reflecting onto the camera.

If the glass has been replaced and is a slightly different shape it could be something as simple as this.

Check the camera is properly shrouded right up to the glass.

Pixel 2 ?

 

This sounds like another good case for @Prius Team but they seem to have left us alone. Does Toyota USA need to get involved in this saga?

 

I think you need to give up on this.......and spend your time and effort somewhere else.
You can demand but some things just aren't possible.

If the windshield indeed was replaced, then you likely are screwed......unless you want to pay a dealer to install a "real" Toyota replacement.......to try and fix a feature that is of questionable value in the first place.

 

Only thing is - why does it work after the first few minutes?

This is mine - excuse the dust on the windscreen, my neighbour just mowed!!

 

Here's mine. That was taken with me standing straight up in front of my car, legs pressed against the front, camera at eye level. I'm just under 6 foot tall. You can clearly see that the whole camera, including the white surround, is visible.

EDIT: To me - your camera looks too far back?

 

Here's another measurement, although it's very hard to see due to reflections...

If I rest my fist on the front edge of the bonnet/hood, and then rest my chin on top of my fist, then the middle of the camera perfectly intersects the inner edge of the blacked out area that's stuck to the glass where the camera looks through.

 

Yep, mine is the same (though I think I ended up a bit to the side)


And yes - it looks too far back - and maybe slightly to the side. So the camera might not be getting a good view. But that doesn't explain why it's OK after a few miles?

 

I'm not sure if Post #28 is quoting something official or not, but if it is that would explain why it starts to work after some time.

 

Your camera most definitely looks like it is not installed properly. The dealership that "calibrated" it must be an absolute total joke. It's clearly too high.

Unfortunately it probably will need to be calibrated once moved into the correct location.

 

OR.....the cutout in the windshield tinting is not positioned properly.
If the windshield really has been replaced, I think THAT is much more likely.

 

Did a brief search and it seems the camera is not only used for the LDA but for Pre-Collision was well (radar returns and changes in image size of vehicle ahead). I view the Pre-Collision system as a critical item over the LDA so keep leaning on the dealer...

 

It's also used for pedestrian detection.

 

I believe that's its main role in aeb. The radar handles everything else (so it can't be relied on to prevent you driving into a wall for example.)

 

GREAT news.

Just remember that the accuracy of the "lane keeping" depends on the quality of the lane markings.
As such, it should NOT be relied upon as a "driving aid" but used as an extra warning device.