Warning problems of the 2021 Honda Odyssey

Two problems related to warning have been reported for the 2021 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Honda Odyssey based on all problems reported for the 2021 Odyssey.

1 Warning problem

Failure Date: 02/06/2024

I am writing to urgently bring to your attention a critical issue plaguing the driver assist systems in Honda Odyssey 2018+ vehicles. Despite meticulous maintenance and adherence to manufacturer guidelines, I have encountered a persistent and alarming problem that appears to affect numerous other vehicle owners, as evidenced by online forums and discussions. The issue initially arose during a rainstorm, where I received a warning message stating, "some driver assist systems cannot operate: radar obstructed. " despite the weather clearing and thorough cleaning of both the sensors and the windshield camera, the warning persisted. Subsequently, a series of related problems emerged, including: illumination of the brake system light malfunctioning adaptive cruise control faulty collision mitigation system inoperative road departure mitigation system these errors not only pose a significant safety risk to myself and others on the road but also indicate a systemic issue with the vehicle's safety systems. As my vehicle is just past the three-year mark and out of warranty, I am apprehensive about incurring substantial costs for dealership repairs, especially considering the widespread nature of these complaints among Honda Odyssey owners. Extensive research reveals that I am not alone in experiencing these issues. Multiple reports and discussions online highlight similar complaints from other Honda Odyssey 2018+ owners, particularly following exposure to adverse weather conditions. Therefore, I implore the national highway traffic safety administration to conduct a thorough investigation into this matter. It is crucial to identify the underlying cause of these recurring issues and hold the manufacturer accountable for any design flaws or defects contributing to the malfunction of critical safety systems. Furthermore, I urge NHTSA to prioritize public safety and take immediate action to ensure affected vehicles are promptly recalled or repaired to prevent further incident.

2 Warning problem

Failure Date: 04/15/2021

While driving in highway construction zones the car's lane departure system attempted to steer the car along lane markings set before the construction zone was established. In several instances this caused my car to steer, contrary to my steering input, towards jersey barriers and dangerously close to a collision. The car's collision warning and automatic braking systems then engaged and applied the brakes regardless of following traffic. After the first instance, luckily in light traffic, I became aware of this issue and aware of how to quickly defeat these safety systems. After several additional instances, some in traffic at highway speed, I determined the lane departure system was more dangerous than helpful and I suspended it by a simple dashboard procedure. I am now able to negotiate construction zones without issue.


Other Lane Departure related problems of the 2021 Honda Odyssey



Safety Ratings of Odyssey Cars
Fuel Economy of Odyssey Vehicles
Odyssey Service Bulletins
Odyssey Safety Recalls
Odyssey Defect Investigations