Peugeot 407 parking aid malfunction

I had something similar with my 407, though it's older. Parking sensors went haywire. Did you check the sensor connections? A defective cable or plug is a common cause. Worth a look before deeper troubleshooting.

Do you remember which sensors were affected on your car? Trying to narrow down where to look.

I didn't troubleshoot it myself. The workshop sorted it quickly. They mentioned checking the control module; a faulty module can cause similar issues. A diagnosis might be worth it, though the repair will be about 95€.

Thanks for sharing! I appreciate the advice. I'll take it to a workshop and hope they pinpoint the issue without too much trouble. Sounds like 95€ well spent!