Has anyone else found that their parking sensors are surprisingly unreliable? And not just in the "this curb is low or obstacle is narrow and isn't seen" kind of way? I pull into a parking spot where the front wall is a plain, completely flat, solid vertical concrete structure. Maybe once or twice a week the front sensors completely fail to register the wall. Sometimes, if backing in, the sensors go mad, yelling at me to stop when I'm clearly 8-10' away or that I have 20+" to go when I'm basically touching the wall. Once I was able to take a video of it going nuts, which I'll try to dig up. It happens while out and about as well, but the flat solid wall makes it really obvious they're malfunctioning. Sometimes I'll be sitting in a parking spot or at a stop sign with nothing around for a dozen yards or more and the sensors will ding on, registering some phantom obstacle. They work probably 90% of the time, but I find it hard to even consider trusting them when I know there's a chance they won't work at all. Has anyone else had similar trouble? My car has so many issues I've been trying to get the SC to concentrate first on the more important ones while I research some of these other lesser issues.