Honda Odyssey Complaints (2020)

491 consumer complaints on file.

#11650766March 26, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, LANE DEPARTURE: WARNING, FORWARD COLLISION AVOIDANCE: WARNINGS
The multifunction forward looking camera in the top of the windshield developed an "internal fault" and either needs replacement or these safety features will fail to work. These safety features allow me to avoid accidents. The problem has been confirmed by the dealer. There are warning lamps that state that these features are no longer working.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649752March 21, 2025
UNKNOWN OR OTHER
Tailgate Control Unit failed due to water entering through the seals of roof seal which resulted in damaging the functionality of the tailgate. Failure to open. I noticed one day that the tailgate would not open (the back hatch). My Honda dealership got the vehicle in rather quickly (One week). Dealership stated they have never seen this and requested repairs of over a thousand dollars. After further research on the issue, I noticed that there are multiple class-action lawsuits with multiple law firms. This is not an isolated issue. However, I am glad that the dealership was able to get my vehicle in and fixed in an appropriate amount of time. The worry was that just one day, the back tailgate quit working and there was no manual way to open the vehicle in case of collision, fire, or water incident and used as an escape route. With multiple class action lawsuits on the same incident, I believe this incident needs to be followed up on. Solutions: Revist the type of seal Honda is using. Move the control unit to a different location within the vehicle so the control unit will not become waterlogged and damaged. Lastly, provide a manual unlocking and opening mechanism for escape out of the rear tailgate if vehicle is involved in a collision, fire, or water event.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649484March 20, 2025
ENGINE
The contact’s daughter-in-law owns a 2020 Honda Odyssey. The contact stated that while his daughter-in-law was driving at an undisclosed speed, there was an abnormal sound coming from the engine compartment. The contact stated that an unknown flashed on the instrument panel. The contact stated that the sound had become louder over time. The vehicle was taken to a certified mechanic who diagnosed the vehicle with engine failure and stated that the engine needed to be replaced. The vehicle was not repaired because the vehicle was no longer under warranty. The manufacturer was not made aware of the failure. The failure mileage was approximately 84,688.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647837March 12, 2025
AIR BAGS
The contact owns a 2020 Honda Odyssey. The contact stated that while driving during a snow day at approximately 15 MPH, the vehicle lost traction and crashed into a curb on the front driver's side where it came to a stop. The crash was minor. No property damage was on the curb. The air bags deployed with excessive force. No injuries were sustained. The vehicle was taken to a local independent dealer where it was diagnosed that an air bag replacement was needed. The local dealer was not contacted. The vehicle was repaired cosmetically by the insurance provider. The contact believed that the impact to the curb was minor and equivalent to going over a pothole which should not have warranted an air bag deployment. The manufacturer was notified of the failure. The failure mileage was approximately 93,000.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11647944March 12, 2025
ELECTRICAL SYSTEM
Regarding my 2020 Honda Odyssey vehicle, there is a manufacturing defect which allows water to infiltrate the rear driver’s side body panel, where it comes into contact with the control unit for the rear power tailgate (a/k/a power liftgate). Once water infiltrates the control unit, it causes the power tailgate to malfunction. Many consumers have reported that the malfunctions include the tailgate opening and closing without notice and while operating the vehicle, the tailgate failing to open, and the tailgate failing to close. With the control module getting wet and becoming oxidize/faulty that also makes the battery work harder which causes the car not to start, etc.. Consumers are then forced to pay out of pocket for expensive repairs only to have the replacement control unit also prone to future failures caused by further water infiltration. Honda of Tenafly is saying this is not a recall and not covered. [XXX] [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647104March 8, 2025
STRUCTURE:BODY
The power tailgate continues giving issues. I made the first repair about 1.5 years after purchasing as a new vehicle purchase. Now a few years, after the first repair, I', seeing the same issue. The power tailgate stops working and makes all the warning lights on my dashboard light up and drains my battery. During the last repair, the tailgate power unit was replaced as water gets into the compartment and causes damage. Initially it affected the driving assistance, the power steering system and lights as they were all acting up, with the dashboard full of warning messages, when the tailgate initially stopped working.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646826March 6, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: BLIND SPOT DETECTION, FORWARD COLLISION AVOIDANCE: WARNINGS
The entire Advanced Driver Assistance System failed. My vehicle has not been inspected. The entire ADAS does not work upon startup.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645411February 27, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST
Front camera failure disabled Adaptive Cruise Control, Automatic Emergency Braking, Lane Departure Warning, and Lane Keeping Assistance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644473February 24, 2025
AIR BAGS
The contact owns a 2020 Honda Odyssey. The contact stated that the front passenger’s side air bag warning light remained illuminated, with or without an occupant seated in the front passenger’s seat. Upon investigation, the contact discovered Honda Campaign Notice: 24-050, which the contact linked to the failure. The manufacturer was notified of the failure and informed the contact that his vehicle was not included in the campaign. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644275February 22, 2025
SEAT BELTS, STRUCTURE:BODY
Top left rear exterior seam/seal on the top of the roof, under the black strip that runs front to back is leaking inside the left inner side/panel of the trunk, leaking water into all electrical components (break/turning lights) as well as the left rear seatbelt mechanism, soaking seatbelt, rendering it unusable. Could be a potential fatality in case of an accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643461February 18, 2025
STRUCTURE:BODY, ELECTRICAL SYSTEM
I have had 3 Power Tailgate modules fail due to water leaks in the rear panel or window of the vehicle. I have had 2 leaks repaired and two modules replaced within a 6 month period (June '24 and December '24). 6 weeks later (Feb 14, 2024) have had the 3 module fail due to water intrusion following a heavy rain.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643231February 17, 2025
FORWARD COLLISION AVOIDANCE: WARNINGS, LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST
Upon starting the vehicle, the following all fail: Adaptive Cruise Control Forward Collision Warning Lane Departure Warning Lane Keeping Assistance
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641598February 9, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: WARNING, FORWARD COLLISION AVOIDANCE: WARNINGS
We bought this van with a clean bill of health as far as accidents and single owner prior to us. The car had a documented maintenance history but after 5K miles of driving it the active cruise control began to through all kinds of errors. I researched this issue and find that many more Honda owners with active cruise control have the same issue. A few customers say that they had their front camera replaced and calibrated for a cost of about $1,600.00 only to have the error show up again. I am writing this message to report that in my case I have found a work around. It’s not a permanent fix but points to Honda’s computer throwing a false positive error that is costing a great deal of money to Honda owners. On our van when this error happens, I force a diagnostic scan followed by a forced computer reboot and the warning lights are fixed an all equipment back to working. It’s horrible to read that Honda charges $1,600.00 to replace perfectly good parts in all their line without taking the time to truly diagnose their issues with ACC errors and do good to their customers. I hope this helps reach someone who can further investigate this issue with Hondas. In our family’s case we are lucky that I have an IT background and was able to find a fix for this issue without any costs to our family financials and avoided paying Honda to replace perfectly working components due to their lack of knowledge of how their equipment works. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641020February 6, 2025
LANE DEPARTURE: ASSIST, LANE DEPARTURE: WARNING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The windshield camera malfunction caused a loss of all adaptive features include: lane keep assist, adaptive cruise control, regular cruise control, collision prevention, automatic emergency braking system, and automatic highbeam.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639509January 29, 2025
ELECTRICAL SYSTEM, ENGINE
It happened twice this month already. Once while driving, the car lost power (as if engine was never turned on), and the gear changed to N so I tried to slow down, then the power came back on, and then I was able to shift to D and continue my trip. Second one happened this morning. It was on auto-shutting idle position and when I put my foot on the accelerator, it completely lost power again (I recently changed the battery and tested in the afternoon and all working properly).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638280January 24, 2025
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST
After driving for about a minute, there is a beep and the brake system warning light comes on. Then the dash begins cycling through multiple warning messages - LKAS/ACC/CMBS/RDM - and will not stop. Now the repair shop tells us that the front multipurpose camera ADAS needs to be removed and replaced, and the ADAS calibrated. Including the fee to diagnose the issue, total cost is $2,980. Van has about 56,500 miles. We have already had it towed twice for battery replacement following similar symptoms, and had battery replaced both times. But with the new battery only 3 months old, it became clear the issue was bigger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636278January 16, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Infotainment system - while driving suddenly there is a cracking/ shrieking startling noise and infotainment system goes off shutting down ( network communication lost sign comes on) and the screen goes blank. No camera works. Radio and all electronic display goes off for a couple of minutes. Slowly, it begins to come back to life by itself in a couple of minutes. This happens randomly on and off. In last 4 weeks, it happened at least 15 times while driving. Honda dealership has my car for three days without a diagnosis or correction.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635866January 14, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS, LANE DEPARTURE: ASSIST
Vehicle was acting normally, and unexpectedly 5 warning alarms came in concurrently all related to ADAS features, creating confusion for the driver. No other abnormalities were observed. Vehicle runs and drives normally. All the ADAS features are disabled and the warning lights continue to display every time the vehicle is driven. There is no way to disable the lights and the culprit of the alarms is a bad multipurpose camera behind the windshield. Honda wants around$1500 (parts and labor) to replace the camera. A quick search finds this a common complaint amongst Odyssey owners and a recall should be issued.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635539January 12, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
__ The present complaint alleges as follows: 1. Honda has a defective design in the Advanced Driver Assistance Systems (ADAS) of all Honda Odysseys, models 2018-2023. 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634591January 7, 2025
ENGINE, LANE DEPARTURE: WARNING, FORWARD COLLISION AVOIDANCE: WARNINGS
Several engine failures, starting one month after purchase in September 2020. multiple system failures (all on video) leading to very poor acceleration and operation. No compression in engine and only able to go 20 mph. White-Allen Honda made four attempts to solve the matter over the course of two years. The dealer has had the car a total of 120 days. Then end of December 2024 then engine began making a knocking sound and I was told it needed at new engine, to the tune of $10,000.00. Then I see a recall for a similar issue but only up to 2019 Odysseys. Please help find resolution for this.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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