My accord’s Adaptive Cruise Control hasn’t been working for a few months. The pictures attached to this post are the error messages that pop up whenever I start the car. I also occasionally get an “Lane Keep Assist System Problem” message. Sometimes the cruise works as a normal cruise control, sometimes the adaptive cruise control works, sometimes it works for part of the drive and fails later, but most of the time, these error messages pop up. I don’t want to take it to the dealer because it’s expensive and it doesn’t prevent me from using the car. Does anyone know how to fix this?
Adaptive cruise control is way outside of the realm of backyard DIY. It uses radars, and has to be calibrated using really precise mirrors and lasers and stuff. Plus you need a scan tool as well. You’re not going to DIY fix it. You’ll need to take it into the dealer, or a highly skilled indy shop, NOT a Firestone or Jiffy Lube. ADAS is complicated.
With that being said, the most common reason that I’ve seen for Adaptive Cruise Control faults has been misaligned radars, usually mounted in cheap Chinese aftermarket grills