Voyager Radar Sensor Failure Disrupts Safety Systems

I had a similar electronic issue with my 2020 Traveler last winter. Having some experience working on cars, I first thought it was a major sensor failure affecting multiple safety systems. The symptoms matched exactly what you describe, warnings on the dash, driving assistance features not working, and stored error codes. After a week of worrying it might be something serious, it turned out the front radar sensor was just dirty from road grime and salt. The workshop cleaned and recalibrated the sensor, which restored all functions. Total cost was 45€ for diagnostics and cleaning. They mentioned this is actually quite common, these sensors need regular cleaning to prevent malfunction warnings. To help diagnose your specific case, could you share: Is the issue constant or intermittent? Have you noticed any pattern when the warnings appear? Are there any visible signs of damage or dirt on the front sensors? Did the problem start suddenly or develop gradually? A proper sensor malfunction diagnosis would help determine if cleaning might solve your issue too, or if there are other underlying problems.

After 191488 KM, my Voyager had identical issues. The electronic issue started when multiple sensors failed simultaneously. The repair shop diagnosed a corroded wiring harness connecting the radar sensor module. The adaptive cruise and collision avoidance systems worked intermittently at first, then failed completely. They had to replace the entire sensor array and recalibrate. Parts and labor came to 890€. Make sure they perform a full diagnostic scan before attempting repairs. In my case, the initial diagnosis pointing to just dirt/debris was incorrect and cost me an extra service visit. The new sensor array has been working flawlessly for the past 3 months since my last service. The shop mentioned these failures are becoming more common in newer vehicles with advanced driver assistance features.

Good point about getting a thorough diagnostic scan. My initial assumption about dirt causing the sensor failure turned out to be too simplistic for such complex systems. After replacing the radar sensor array on my Traveler, I learned these electronic issues often trace back to wiring problems, not just surface contamination. The radar calibration process revealed additional connection faults that werent obvious initially. What helped identify the root cause was tracking when the adaptive cruise control and other systems failed, the intermittent nature pointed to corroded wiring rather than a completely failed sensor. At 190000+ km, wiring degradation is a common culprit for these warning messages. For anyone else facing similar issues, consider: A full diagnostic scan is essential before any repairs, Intermittent failures often indicate wiring problems, Simple cleaning may not resolve complex sensor failures, Budget for possible wiring harness replacement if the vehicle has high mileage The repair cost aligns with what I paid, around 850€ for parts and labor including recalibration. Like yours, my systems have worked perfectly since the complete replacement.

After checking my service records, youre absolutely right about the wiring being the real issue. My problem showed the same progression, first intermittent sensor failure warnings, then complete system shutdown. The initial quick fix attempts just wasted time and money. The full diagnostic scan revealed multiple corroded connection points in the wiring harness near the radar sensor. Getting everything properly replaced and recalibrated was expensive but worth it. The radar calibration process showed how the faulty wiring affected multiple vehicle systems. Im glad I insisted on the complete repair instead of just cleaning or basic troubleshooting. The driving assistance features and collision avoidance system now work perfectly. The shop explained that automotive sensors often fail due to wiring issues rather than the sensors themselves being defective. For anyone searching for solutions to similar problems, my total repair cost of 890€ included: Complete diagnostic scan, New sensor array, Wiring harness replacement, Full system recalibration The repair has held up well these past 3 months. No more warning messages or system failures.