There are 6 owner-reported driver assist & adas complaints for the 2024 Honda Odysseyin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
When using the sensor-controlled, automatic wipers the lane keeping assist is silently disabled when the wiper speed switches to high. There is no warning or explicit notification of this other than the dashed lane markings indicator becoming "empty". There should be some on console warning that is more substantial so the driver knows they cannot rely on lane assist steering during this time.
The camera on top of the windshield and the radar behind the grill failed and the van has less then 12,000 miles! This is a well known issue. There is no obstruction. The area is clean and clear. Totally unacceptable.
This complaint alleges issues with this vehicle as follows: 1. Honda has a defective design in the Advanced Driver Assistance Systems (ADAS) of all Honda Odysseys, models 2018-2024. 2. Namely, Honda has placed the RADAR behind the large HONDA emblem on the front grille. This causes the radar to give a "RADAR OBSTRUCTED" warning, which disables all Advanced Driver Assistance Systems in the car (Automatic Emergency Braking, Adaptive Cruise Control, Forward Collision Warning). 3. The "RADAR OBSTRUCTED" warning cannot be reset by restarting the vehicle or disconnecting the battery, requiring recalibration of the RADAR at the cost of $800 each time since it takes several hours to do (per Dealership). 4. The official Honda Odyssey Forum online has countless complaints on the same issue without resolution by Honda. 5. Honda has acted in bad-faith towards their customers since this defect impacts the vehicle's advanced safety features for which buyers incur additional expenses, endangering the lives of passengers. 6. Honda has acted in bad-faith towards their customers by designing a system that requires continuous and substantial expenditures without resolution because it is an engineering problem, i.e., the placement of the radar behind the large, thick plastic H emblem obstructs the radar. 7. I hereby ask that the NHTSA investigate this issue and order Honda to offer a solution in the form of a RECALL that permanently addresses the problem. Thank you for your time and reviewing this systemic issue.
At speed less than 25 mph, the Collision Mitigation Braking System (CMBS) did not work. At cross roads this CMBS will not work when a vehicle comes from the side. This will work only if it detects the vehicle's presence in front for more than 3-5 seconds. Will not activate during sudden presence of vehicle at any speed.
The automatic braking system activates randomly when merging onto a highway if you do not have your signal activated, and cross a lane line, at the moment you merge onto the highway. I understand that it is the law that you must signal a lane change, however failure to do so should not result in the vehicle slamming on the brakes, especially when you are attempting to increase speed merging onto a highway. When this happens, it is incredibly dangerous. On [XXX] at [XXX] p.m. I was merging onto [XXX] from [XXX] in Illinois. As I was merging onto [XXX], the emergency braking system slammed on the brakes, and alerted me of a possible collision. The car behind me almost ready ended me. The roadway was free and clear. This occurred as I was passing through the lane markings from the on ramp to the expressway. I do not remember if I had my signal on. I do not have exact dates when each of these incidents have occurred, but is happened at least 5-6 times in the year that we have owned the car. There is an ongoing investigation by NHTSA for Honda's emergency braking system, which according to this article has been expanded to 2023 model years including Odyssey [XXX]). I think the investigation should be expanded to include 2024 model years as well. If any other information is needed please let me know. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
This vehicle has a feature that displays the posted speed limit on the dash display. The dealership, McGrath Honda in St. Charles, IL has told me this information is gathered by the camera system. Periodically the vehicle will pick up the Highway number sign and use that to display the speed limit. In the attached pictures it shows that we were driving on Highway 110 in Illinois and then the display showed that the speed limit was 10 MPH, which then changed to 110 MPH. Another example, for which we don't have pictures, was when we were driving on Highway 38 in Illinois and the display shows a speed limit of 35 MPH. When this occurred we were not familiar with the area and slowed to 35MPH which caused vehicles behind us to slow down, get very irritated, demonstrate their irritation using hand signals, etc. We resumed the real speed limit, 55MPH after we saw the next speed limit sign. We have had this inspected by the dealership, which performed a hard battery reset that did not fix the issue. The manufacturer, Honda of North America, does not wish to address this issue as ascertained via chat with them. There are no warning signs, the display changes to fictitious speed limits when the camera system picks up road signs other than speed limit signs.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026