LTA randomly not working

[Davebtw]

I had my 2019 corolla serviced last month and since then, the LTA hasn't worked. 

I'm talking specifically about when it combines with the adaptive cruise control. I've used it a lot in the past and it would go green to indicate its active and can read the white lines on the road, but now it doesn't go green no matter what. I even tested it yesterday on a road that had very clear, solid white lines both sides.

I'm guessing there's a front camera somewhere to detect these lines and before I call the dealer who did the service, I wanted to see if I could clean the camera to see if thats the issue. However, I can't find it anywhere. 

I've googled and still can't find anything, does anyone have any idea where this camera is? Or have any other suggestions of what could be wrong?

[Cyker]

The camera(s) are in a pod integrated with the rearview mirror. It may be condensation, so you can try using the front demist button for a bit once the engine is warm to see if it helps, but IIRC the camera has its own heater to clear condensation so that my not make any difference...

Just to be sure, you aren't e.g. driving into the sun when it isn't working...?

[Davebtw]

It's not working anytime of the day so Sun isn't the issue. Also had demister on for a good while on my drives and it hasn't fixed it. 

 

Looks like I'll have to take it back into the shop that done the service. I'm sure it's a coincidence but its definitely been since then that it hasn't worked.