this post was submitted on 22 Nov 2023
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Yeah, you should take that to a dealer and have the system re-calibrated. It's not supposed to act like that. If I had to guess, the previous owner got into a fender bender and had someone do the repair work on the cheap. Either that, or there's something in the front grill area blocking the radar setup intermittently.
Every automated car I've driven behaves like this. I don't buy it's a calibration issue (there's nothing to calibrate from what I've read on wiring diagrams, as that's not how auto manufacturers roll - they build components for things like this to be replaced).
For example, I haven't heard of headlight aiming in forever, though it's something that used to be done with a relatively simple tool. And it's way simpler to do than calibrate a complex radar system for a car.
This automation simply isn't quite ready for the real world, and I'd bet manufacturers are collecting data from many of these cars (so many have a connection back to the manufacturer via cell).
I'm only trained to calibrate the camera systems that tell you when you've drifted out of the lane, but the tool I use is capable of calibrating radar systems if you buy the more expensive accessory package. I'm certain because I have to scroll past the instructions for radar when pulling up instructions/parameters for Lane watch.
Also, for what it's worth the sensors CAN be replaced, but they still have to go through an initial calibration/programming once installed into the car.
It was a company vehicle and if it was crashed, we'd have known about it