2020 Honda Odyssey complaints

My 2020 Honda Odyssey power tailgate has failed due to water intrusion through defective rear body seam sealer, a known manufacturing defect. Water leaked into the rear driver's side panel and damaged the power tailgate control module, making the rear door inoperable. I took my vehicle to the Honda dealership, who confirmed this is a factory defect related to improper seam sealing. The quoted repair cost is over $8000. Honda has declined to cover this under warranty. This defect poses a safety risk as the tailgate can open unexpectedly while the vehicle is in motion. I am aware of a pending class action lawsuit involving 2018-2021 Honda Odyssey models with this same defect. No recall has been issued. I am requesting thr NHTSA investigate and compel Honda to issue a formal recall.

Screen does not work, diagnosed as an internal failure of infotainment system radio unit. Rear camera does not work posing a safety issue

High pressure fuel pump failed on a low mileage 2020 Honda Odyssey. Upon initial inspection the Honda mechanic reported the area around the fuel pipe was saturated with fuel.

I had a recall done in the radio that didn’t work.

The warning messages keep popping up regarding the lane assist system, Adaptive cruise control not working and dealer states that the camera needs replacement and this is common issue for most Honda cars so should be recalled

Vehicle stopped at red light, idle start/stop stopped engine. At green light, upon pressing on gas engine started, vehicle ready to move, but stalled. This happened a few times. Took it to Honda who said they know about this issue and that the Isle start/stop is not a “perfect” system. Tried to sell me an expensive battery. Huge concern in terms of safety in a vehicle with children and stalling in busy streets.

Sliding doors sometimes do not close all the way and then reopen automatically. You cannot press the sliding doors to close and walk away. You have to stay to make sure they close because often times it will kick back and reopen. You have to manually help push the sliding door to close. Elite trim has no way to make the doors be able to be closed manually, if needed. Took it to Honda, they said they have never heard of doors not closing and reopening so they could not help me, but I have spoken to quite a few Honda Odyssey owners in parking lots and they all stated that the doors do sometimes not close all the way and return to being fully open. Maybe the motor for the doors isn’t strong enough and depends on vehicle tilt or the temperature outside, but for whatever reason the automatic doors are randomly not fully closing.

Vehicle suddenly starts having multiple lights and warnings come up such as road departure mitigation, adaptive cruise problem, collision mitigation, auto high beam, etc. reading online it seems multiple people with honda oddysey are experiencing the same issues.

The blind spot system was a problem when I purchased the car, it spent 15 days in service in the first 30 days of ownership to address the issues. Now, I after another light came on I discovered 9 open recalls on the vehicle that were not disclosed prior to purchase.

I own a 2020 Honda Odyssey and I am currently having a safety issue with the power tailgate. Upon inspection by my Honda dealership, my vehicle requires a new power tailgate control unit and floor harness and my roof rail and clips need to be re-sealed and replaced. It was discovered that due to the break in seal the connectors corroded due to a water leak.In April of 2026 I received multiple warning messages on my dashboard. The first was Power tailgate problem and the second was keyless remote problem. At first I noticed my car continuously beeping while driving along with the warning on my dashboard. I attempted to turn the vehicle off to see if it would reset, but it did not. I attempted to open and close my tailgate. I could only open my tailgate with the push button on my dashboard. I had to manually close my tailgate due to my buttons on my car and my key fab failing to work. Next while driving, I could hear the locking mechanism on my tailgate continuously locking and unlocking. Of course this particularly concerned me because I have 3 young children and their safety as well as mine was in danger. It was unclear if my tailgate was going to open while driving. Such an action could potentially cause a serious threat or harm to myself, my family or other vehicles on the road.

While driving the vehicle under normal conditions, multiple advanced driver assistance and safety systems suddenly became unavailable without warning. The systems affected include Automatic Emergency Braking, Forward Collision Warning, Lane Keeping Assistance, and related safety features that rely on the forward-facing camera. The failures occurred at the same time and were indicated by warning messages displayed on the instrument panel. The vehicle was inspected by an authorized dealer, who confirmed a diagnostic trouble code indicating an internal electronic failure of the forward multipurpose camera. The failed component is installed behind the windshield and is available for inspection upon request. The dealer stated that no accident, physical damage, misuse, or external cause was identified. After the camera failure was identified, the vehicle also briefly displayed a transmission system warning message that later cleared on its own. In addition, the center display screen has shown unstable behavior while driving, including unexpected resets and flashing back to the navigation screen. The sudden loss of collision mitigation, lane assistance, and warning systems reduces the vehicle’s ability to assist in avoiding crashes, particularly in emergency situations, and increases safety risk to the driver, passengers, and others on the road.

Backup camera stopped working for no reason, says camera system failure and is a black screen. Research says this is a recall but my dealership says it is not.

The contact owns a 2020 Honda Odyssey. The contact stated that the vehicle made an abnormal ticking sound while depressing the accelerator pedal, and the engine made a loud sound. There was no warning light illuminated. Upon investigation, the contact related the failure to NHTSA Action Number: PE25008 (Engine). The vehicle was taken to the local dealer, where it was diagnosed and there were metal shavings found in the engine oil. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and confirmed that there was no recall or warranty coverage for the repair. The failure mileage was approximately 85,000.

We went to a car wash and that day after the car wash we started getting 6+ error message codes for adaptive cruise control, lane assist, lane departure, blind spot, rear cross traffic, etc. our tech that we took it to says they have seen this happen nation wide on these vehicles

Our Odyssey is equipped with idle stop. Sometimes when idle stop engages, the engine won't start again afterwards. We need to turn the car off completely, and then try again. Usually it turns on after doing so. We try to always turn off the idle stop when we start up the vehicle, but sometimes forget. This hasn't led to an accident yet, but has led to some angry vehicles when we can't move when a traffic light turns green. To be clear, this was not an isolated incident, but happens somewhat regularly if idle stop isn't turned off. Honda dealers have told us they don't have any fix, and have recommended that we could purchase a third party "idlestopper".

5 alerts came on the dash stating lane keeping assist problem , collision mitigation problem , auto high beam problem, forward collision problem and brake system warning. All safety features on my vehicle have failed. I

The rear passenger side tire hit a pothole and it caused all of the airbags to deploy on April 6, 2026. The impact should not have set the airbags off. This has caused a severe rash/burn on my son's face and neck. The vehicle is now being totaled by my insurance company and forcing me to have to purchase a new vehicle and my insurance rates to go up. Three days later, April 9, 2026, a safety recall on the over-sensitive airbags was issued for this Odyssey. There were no other warnings leading up to this. Insurance has inspected the vehicle and deemed it a total loss.

Front camera is bad or faulty, triggering all adaptive cruise control, lane keep assist, auto high beam etc errors on dashboard, rendering the car not able to start or die in the middle of the road/traffic when the engine goes into idle mode while stopping at red lights. My odessey has over 111k miles when these issues start showing, but lots of people report experiencing same issue with even with their newer odessey. It doesn’t feel right why Honda installed cheap cameras especially when it plays a crucial role involves safety of the car and the driver.

Rear tailgate window spontaneously shattered

The outside mirrors had a recall for potential detachment. My driver's side mirror detaches sometimes even after the replacement. When I contacted Honda over this issue, they told me that they can't take my complaint and I should go back to the dealer which replaced it.

The radar is broken leaving all ADAS unusable in addition to no option to use cruise control.

After being on idle on a stop light, when releasing the brake to go, warning on dash says "Collision Mitigation Warning" when nothing hit the car and I'm there's enough distance with the car in front and behind. The severity has increased now, after being idle, when releasing the brake, it now completely shuts off, dash says "Shift to Park", and can't go, unless I push the ignition button. Took it 3x for the same errors on dash, Honda said the 1st time it was low battery, battery was running on low juice and didnt have power to come back from idle, they changed the battery. Now they say they need to replace the starter after few thou$and$. I see online this happening to others too. I fear the car behind me, may rear end me, because I can't go, green light is on, but I can't move as I'm re-starting the vehicle after being on idle. Honda says my VIN is not part of the bad batch. It's happening more frequently and Honda said they were able to replicate.

The same power tail gate issue as experienced by many others on models 2018-2022. Water intrusion causing the power module fail for auto operation of powerlift tail gate.

Vehicle has all time on the brake system, front collision, auto high beam, adaptive cruise control, lane keeping assist abd road departure warnings. Sometimes the vehicle turns off suddenly when stop, and the steering wheel gets hard when parking.

With no preceding accident or damage, the vehicle suddenly received multiple warning lights on the dash, including: "Adaptive Cruise Control Problem", "Lane Keeping Assist Problem", "Collision Mitigation System Problem", "Road Departure Mitigation System Problem", ""Auto High-Beam Problem", and a Brake System Caution Light. I attempted turning the car off and back on again, disconnecting the battery for 20 minutes, and reconnecting, and checked all fuses that were accessible. It appears the problem is related to the Multipurpose Camera (Honda Part #: 36160-THR-A91-M1). This appears to be a common issue. This manufacturing defect primarily effects safety systems and is common on a car that is primarily marketed towards the transport of families and children. I find this defect to be unacceptable and STRONGLY believe that it warrants a recall by the manufacturer.

Basically, numerous errors lite up the dashboard. But the car itself was running ok mechanically. I took it in for service and after a couple of non sensical diagnoses. It was determined to be the multipurpose camera in the windshield area. And they want two thousand dollars to fix it. I know most people purchased a vehicle like this in order not to encounter repair bills like this (that aren’t the engine). A simple and obsolete electric should be pretty simple to swap out.

My vehicle started cycling between all of the check engine types of lights to include the emissions system. When taking it to my local Honda dealership, they determined that it was my front camera (multi-purpose camera internal failure). After some research and speaking to the service department, this major safety failure has been happening to many other Honda vehicles. The emissions system failure seems to also be a faulty design. I feel that the camera system failure could have resulted in an accident or major injury. And of no fault of my own. My vehicle is regularly maintained and is merely 6 years old. I should not be replacing a mayor system like the front camera every 6 years.

The power liftgate will not operate and the tailgate will not latch closed. The van was parked outside during a heavy rain, and when the vehicle was started afterward, a warning was displayed on the dash. The van has not been checked by the manufacturer. An inspection is available on request.

Camera is faulty. Many owners report a similar problem.

The front windshield camera completely failed. No longer have emergency braking. Honda said known problem and want to charge $2000 to fix

Car leaks. Cargo Bay fills with water. Possible mold issues. I am told this leaking causes damage to the control module for the tailgate. Our tailgate will close on us and has almost closed on our children. We have to be very careful when the children are around the tailgate because it will begin to close without warning.

Following replacement of the small block in Dec. 2025 for bad pushrod bearings. The vehicle ran for 3000 miles, before the engine seized up again while driving at 50 mph. The vehicle came to a stop in the travel lanes and could not be moved due to engine failure. Upon having the vehicle towed back to the dealership for inspection and repair, they found that the #3 cylinder had both valves broken and metal pieces shavings found in the engine. The dealer claimed that this was not related to the previous replacement of the small block as they did not work on the headers. However I believe the original issue of the bad pushrod bearings caused poor oil flow to the headers and the valves were already worn before the Dec. 2025 engine seizure. The dealer has now replaced the small block (for a 2nd time) headers, intake manifold, injectors and timing chain.

The front camera that controls adaptive system died within 4years of owning the vehicle so all the warning lights come on now.

The Multipurpose Camera failed. Searches online and discussion with the dealers show this is a common problem. Result is shutdown of collision mitigation systems, blind spot indicators, lane divergence system, auto high beam, etc.

The vehicle unexpectedly shifts into Park while driving. Each time this occurs, I have to turn off the car, use the “Push to Start” feature to restart it, and then shift back into Drive. This issue has happened multiple times, creating a safety concern while on the road.

The power liftgate opens, but then closes unexpectedly. It will open fully, dip down a couple inches, open back up fully and then close quickly. It does not stop closing when it meets moderate resistance, only stops when the button is pressed. I was unloading groceries into the back and it came down on me. Luckily, I was able to reach and press the button. Had it been my children I'm afraid it would have crushed them. This has now happened numerous times and through research I have found a Honda service bulletin about this known issue. I feel it should be a recall since it poses a safety hazard. As I said, it could really harm someone not able to move quickly or a child could lose a limb or be crushed. I shouldn't have to pay for a very expensive repair to maintain safety when Honda knows this is an issue caused by a defect in the spring assembly. Service bulletin 22-018. This happens nearly every time I open the liftgate now, less often when it's cold outside than when it is warm. Makes it hard/nearly impossible to use my trunk space.

I hit a pothole and my airbags deployed. The Right side airbags and the front passenger seat airbags were deployed.

The multipurpose camera unit failed causing the Forward Collision Warning, Automatic Braking, Lane Keeping Assistance, and Lane Departure warnings lights to come on and rendering all those systems inoperable. Part of the selling point of this vehicle is these additional safety features and for them to fail within 5 years of owning the vehicle is a safety concern. From my own research online, it seems this is a common problem for Odysseys built around this timeframe. This part is extremely expensive and is a required repair if you want the original safety features for the vehicle. I made the repairs, but the life of these units is something that should be looked into.

System failure for all of the safety-related assistants. Works intermittently, but mostly indicates failure.

Getting error code for safety sinsing. Lane keep assist, Collision mitigation system and now transmission system. forward facing camera is cause of issue

The power tailgate system on my Honda Odyssey failed. The dashboard displays a “Power Tailgate Problem” warning message and the tailgate will not open automatically using the key fob, interior button, or rear handle. When attempting to open it electronically, the vehicle beeps but the tailgate does not move. The tailgate can only be opened manually. The vehicle and tailgate system are available for inspection upon request. The failure creates a safety risk because the tailgate cannot be opened electronically in situations where quick access to the rear cargo area may be needed. Additionally, if the power tailgate system fails unexpectedly, it could malfunction while opening or closing, potentially striking someone or failing during loading/unloading. The inability to rely on the automatic tailgate also creates hazards when carrying items or supervising children around the rear of the vehicle. The problem occurs consistently every time the power tailgate button is pressed. The system beeps but does not open. The issue has not yet been formally inspected by a dealer but can be easily reproduced. The vehicle has not yet been inspected by the manufacturer, police, or insurance representatives for this issue. A “Power Tailgate Problem” warning message appeared on the dashboard when attempting to use the power tailgate. At the same time, the vehicle emits a beep but the tailgate does not move. The issue began recently and has occurred every time the power tailgate has been used sin

The multipurpose camera module has failed, on the vehicle resulting in the simultaneous loss of several driver-assistance and safety systems while the vehicle is in operation. These systems include cruise control, lane keep assist, lane departure warning, collision mitigation, automatic high beams, and the brake system warning. Upon inspection, there appears to be overheating within the camera module. This overheating has caused visible discoloration both inside and outside the module housing. Based on these observations, I believe the condition may present a potential fire hazard. Additionally, the plastic cover mounted to the windshield becomes extremely hot to the touch, creating a risk of skin burns if it is accidentally contacted. This malfunction poses a significant safety concern for my family. If the camera fails while driving, the vehicle’s safety systems may not function as intended, increasing the risk of an accident. All of the failures chime in one after another displaying a problem with the malfunctioning components stated earlier in the text. Furthermore, if a driver is deaf or not actively monitoring the instrument panel or speedometer, they may not hear or immediately notice the warning alerts indicating that these systems are no longer functioning. The issue has been diagnosed by my local repair shop finding error code U3000-49: Camera/Radar Internal Failure. Repair requires replacement of the multipurpose camera module, with an estimated cost exceeding $2,0

Tailgate control module damaged by water leaking from faulty rear body seam seals on left top of vehicle Doors would lock and unlock on their own while driving and tailgate signaled it was open but never unlatched Manual tailgate opening/closing did not work at all Constantly beeped when unlocked and alarm went off randomly All electrical activity drained battery and made vehicle undriveable; tow was necessary First sign was "power tailgate problem" light on dash 5 days before vehicle battery was dead Honda charged for and replaced Tailgate control module and recommended an outside company to repair leak issues; outside company confirmed issue and noted repairs for same issue on similar models

The contact owns a 2020 Honda Odyssey. The contact stated while driving approximately 50 MPH, the driver’s side curtain air bag deployed without impact. No vehicle occupants were injured from the unintended deployment. The manufacturer was notified of the failure and a case was filed. The vehicle was not diagnosed or repaired. The failure mileage was approximately 60,000.

The front-facing camera stopped working, and all associated ADAS systems no longer functioned (Adaptive Cruise Control, Automatic Emergency Braking, Forward Collision Warning, Lane Departure Warning, Lane Keeping Assistance). Several errors needed to be cleared every time the vehicle was started. Our Honda dealership determined that it was a failed Multipurpose Camera (code U3000-49), and that the entire camera unit needed to be replaced and re-calibrated.

The contact owns a 2020 Honda Odyssey. The contact stated that while starting the vehicle, there were several unknown warning lights illuminated. The contact stated that several safety features were disabled during the failure. The vehicle was driven to a local dealer, where it was diagnosed, and determined that the front multi-purpose camera had experienced internal failures. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 6,000.

System is starting to fail by alerting me to clean windshield. Windshield and camera have been cleaned, still getting multiple warnings that system is shutting off safety features during my commutes.

I stopped at a red light and then my car just stopped. It seemed the car wasn’t able to start up the engine from the idle mode. I had to restart the car at the intersection with a truck behind me and with 3 kids under the age of [XXX] on the car with me. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

After a heavy rainstorm, the power tailgate motor stopped opening or closing the tailgate.

The contact's daughter owns a 2020 Honda Odyssey. The contact stated that while his daughter was driving at an undisclosed speed, several unknown warning lights illuminated. The contact attempted to inspect the vehicle but could not determine the cause of the failure. The vehicle was taken to a dealer, where the contact was informed by the technician that the failure might be from the wiring connected to the rearview camera. The contact declined to pay for a diagnostic test. The contact attempted to repair and realign the rearview camera; however, the part needed to realign the camera could not be purchased and could only be serviced at a Honda dealer. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 130,000.