Lane Keep Assist lights up but doesn't work

still under warranty?

 

at 37000 miles, you are out of warranty.

 

standard warranty covers up to 36000 miles, powertrain maybe up to 50k miles (I don't recall), and hybrid stuff up to 100k miles

 

The camera for LKA is above the rear view mirror. Make sure the lens is clean and free from obstructions, and the windshield in front of it is clean.

And if you've ever had your windshield replaced, make sure they used the right one - I believe the Advanced Tech package uses a different windshield. There are black dots that help keep the sun from shining through above the rear view mirror into your eyes; on most versions, I believe the dots are symmetrical to the left and right of the arm that the rear view mirror is mounted on. On the AT version, the dots on the driver's side don't go as far down the windshield - this is where the camera looks out to see the lane markers.

 

Call the dealer's service department & ask about the TSBs.

 

I'm guessing the rectangular covers you're thinking of are actually the headlight washers, if they're the ones that stick out a bit from the body. (There's also the flush covers a bit lower and closer to the middle, which hide the screw-ins for the towing eyelet in case you need to be pulled out of a ditch somewhere.)

The radar itself is hidden behind the Toyota badge in the front. You can see it (a large, flat-faced object) if you pop the hood. The front badge is different on the models with DRCC, presumably to make the badge transparent to the radar. Non-DRCC models have a more three-dimensional badge like in the back, while ours looks 3D-ish, but is covered in a layer of clear plastic (or whatever material that is).

 

Can I chime in with the same problem, hopefully bring up this old thread. I just had my windshield replaced and my LKA camera and system worked before installation of the new windshield, but the company cannot get the camera to work now. They tried several times to re-calibrate the camera, along with the help of the tech company that provides the calibration process.

I checked and the windshield is correct, the black dots do not come down as far on the side with the camera and the system comes on and shows the two lane lines, but they will not turn bold showing the camera has recognized the lanes.

Has anyone else had what I suspect is a camera failure after recalibration?? The glass installers and tech who did the re-calibration says they have cleared any codes they can find associated with the system.

The next step is to take it to a dealer and let them diagnose, just wanted to get some hints or advice for anyone who has been down this road before.

Thanks

 

LKA really is not very good on the older Prius cars. It's over a decade old technology. The new LKA from newer cars really work well, but you shouldn't expect much from the older cars

 

It's best to have the Dealer do it. They have the correct Toyota equipment
to do the job correctly. Hopefully, a tech that can do it.

 

Resolved:
The Toyota dealer was able to properly calibrate the LKA front camera and now it works properly. Do not know why the glass company system would not do the job, maybe the age of the vehicle (2010)

Thanks for the input.

 

Glad to hear!
Because the aftermarket stuff doesn't always work. Nor do the people
have the training or ability to do it correctly.

It's working, that's what matters!

 

Yep just junk the car and get a new one.