Kalos Multiple Sensor Failures, Common Causes & Fixes

Had a similar electronic issue with my 2012 Chevy Aveo last winter, definitely get where you're coming from with those sensor problems. My car started showing multiple system failures too, particularly with the collision avoidance features. From my basic experience working on cars, these sensor malfunctions often start with something simple. In my case, it turned out the radar sensor was just heavily dirty and needed a thorough cleaning. Took it to the workshop, and they found road grime buildup was blocking the sensor's function. Total fix was 45 Euro for diagnostic and cleaning, way better than replacing the whole unit. Before jumping to conclusions about major repairs, could you share: Any recent weather conditions or driving environments? Are the errors constant or intermittent? Did you notice any physical damage to the front bumper area? What specific error codes are you getting? Sometimes these adaptive cruise and sensor issues can be resolved with basic maintenance rather than complete replacement. Worth checking the simple stuff first. Would definitely recommend getting it properly diagnosed though, multiple system failures could point to different root causes depending on your specific situation.

Thanks for the input. Just had my 81,440 KM service done last month, and these issues started right after. The error codes are pointing to the front radar sensor, P0650 and B1352. Errors are constant, no weather damage, and the bumper's clean. The collision avoidance system completely shut down yesterday, and the adaptive cruise won't engage at all. Already tried cleaning the sensor area, but no change. Sounds like my case might be more serious than a dirty sensor, thinking it could be a complete sensor malfunction or wiring issue. Did your sensor problems affect the speedometer too? That's what's got me worried there might be more going on here than just the radar system.

Thanks for the follow-up info. Yeah, my situation was initially similar, but I can see your case is definitely more complex than what I dealt with. The red flag for me is that these issues started right after your service, that's not usually a coincidence with automotive sensor problems. In my case, the speedometer wasn't affected, which is why I first suggested checking for dirt. Since you're getting those specific error codes and seeing speedometer issues after service, I'm now thinking there might have been some accidental damage or disconnection during the maintenance work. My driving assistance systems were restored after the initial cleaning, but yours aren't responding to basic troubleshooting. Given your symptoms, especially the speedometer involvement and constant error codes, I'd suspect either: Damaged wiring during the recent service, Failed radar calibration after service, Complete sensor failure needing replacement In retrospect, I probably should have mentioned that any work done near the front end can affect these systems. The radar calibration needs to be spot-on for all these systems to work together properly. Have you contacted the service center that did the maintenance? They might need to check if anything was accidentally disturbed during the work. In my experience with these electronic issues, when multiple systems fail simultaneously after service, it's often related to the work that was just done.

Thanks for the detailed explanation about the service connection. I'll definitely contact the workshop about this, didn't realize the timing after service could be significant. After reading your response, I'm more convinced this could be related to the recent maintenance work. Just checked and found something interesting, there's a small scratch near the sensor housing that wasn't there before the service. Not sure if that's relevant, but given what you've mentioned about calibration sensitivity, it might be. The safety systems are still completely down, and the speedometer's still acting up. Going to call the service center tomorrow and have them check for any accidental damage or calibration issues from the recent work. Hoping it's just a radar calibration problem they can fix under warranty rather than a complete sensor failure. Will update once I know more about the repair cost and actual problem. Good catch on connecting this to the recent service, that timing detail completely slipped my mind when I first posted. At least now I have a better direction to start the troubleshooting process.