2020 Honda Odyssey

474 complaints on file, page 1 of 24.

1. Filed Sep 30, 2026Failure Sep 12, 2026Ridgecrest, CAEngine, Adaptive cruise control, Service brakes

   Upon starting my Honda Odyssey, the dash immediately started saying, Collision Mitigation System Problem, Adaptive Cruise Control Problem, Road Departure Mitigation System Problem, Lane Keeping Assist Problem, Auto High Beam Problem.

   NHTSA complaint 11768117
2. Filed Sep 28, 2026Failure Mar 31, 202639,000 milesMount Airy, MD12v/24v/48v battery

   The contact owns a 2020 Honda Odyssey. The contact stated that on several occasions while stopped at a red light, the vehicle shut off unintendedly and had to be manually restarted. The battery warning light was occasionally illuminated. The vehicle was taken to a dealer where it was diagnosed, and the contact was informed that the battery needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was 39,000.

   NHTSA complaint 11767405
3. Filed Sep 27, 2026Failure Sep 25, 2026Odenton, MDAutomatic emergency braking, Warnings, Warning

   One morning, with no prior issues, we started driving our van and it suddenly displayed several warning lights, including brake system, adaptive cruise control, auto emergency braking, forward collision warning, lane departure warning, and lane keeping assistance. We took it to Darcars Honda in Bowie, MD who diagnosed it as a front facing camera failure. The dealer replaced the camera and kept the old one. This failure in a six year old van increased the danger of collision while operating the vehicle.

   NHTSA complaint 11767300
4. Filed Sep 26, 2026Failure Sep 25, 2025Jacksonville, NCEngine, Fuel/propulsion system, Unknown or other

   The auto idle start when I am at a red light it will turn off and put it in park. I have to restart the van and put it back in drive. I believe this to be a safety issue. I have my kids with me and its dangerous. I would like to know what can be done and why hasn't this been a recall. I have to remember to push the auto idle button each time I get in to drive otherwise Im afraid ill get stranded at an intersection. Its been going on for at least a year and the dealership thought it was the battery we have replaced the battery so that is not the issue.

   NHTSA complaint 11767174
5. Filed Sep 24, 2026Failure Sep 21, 2026Ballwin, MOAutomatic emergency braking, Adaptive cruise control, Warnings

   Front windshield mounted sensor failure on 2020 Honda Odyssey. Disabled Honda Sensing safety suite which included lane keep assist, adaptative cruise control, auto high beams which all triggered warning messages on the dashboard which all occurred at the exact same time. This problem has been reproduced an inspected by Honda of Frontenac.

   NHTSA complaint 11766681
6. Filed Sep 23, 2026Failure Sep 23, 2026Orlando, FLElectrical system

   The power liftgate is no longer working and locked shut a few hours after multiple warning messages. There was heavy rain that night. It did randomly open and shut all or part of the way before that, sometimes after closing. This often happened after heavy rain when the van was not even in use. It could have popped open at any time, and then warning messages popped up and blocked the notifications and other dashboard information and distracted the driver. It was confirmed by the dealer and they recommended it get replaced, however, the electrical panel was corroded by water damage from a suspected leak in the roof rail. The dealer said that it would probably happen again and not to get it fixed until the leak was determined. Many others have reported this online regarding the Odyssey.

   NHTSA complaint 11766317
7. Filed Sep 22, 2026Failure Sep 14, 202650,000 milesFort Worth, TXEngine

   The contact owns a 2020 Honda Odyssey. The contact stated that while driving 45 MPH, the contact heard a knocking sound coming from the engine, and the vehicle went into LIMP Mode with the low oil warning light illuminated. The contact became aware of a burning odor coming from under the hood, and the vehicle needed to be towed. The vehicle was towed to the dealer, where it was diagnosed and determined that the connecting rod bearings had failed and the engine needed to be replaced. The vehicle was not repaired. The failure mileage was approximately 50,000.

   NHTSA complaint 11766110
8. Filed Sep 20, 2026Failure Mar 17, 2026Sumner, WAElectrical system

   Both sliding door keep stopping when closing or opening. Have to manually do it sometime. Rear door don't close anymore either only opens has to always be manually close.

   NHTSA complaint 11765594
9. Filed Sep 18, 2026Failure Aug 25, 2026Manhasset, NYAdaptive cruise control, Automatic emergency braking, Warnings

   The monocular camera failed causing the car to lose all ADAS features. Honda said this not a recall issue and I have to pay for the repair which is significant. Not only are all the ADAS features lost, but the dashboard flashes warnings and beeps reflecting the lost features

   NHTSA complaint 11765234
10. Filed Sep 17, 2026Failure Sep 12, 2026Wentzville, MOElectrical system, Engine, Exterior lighting

    Stopped at a light, auto idle stop engaged, engine shut off normally. The moment I pressed the gas, everything died — engine and all electronics. I pressed the start button two or three times with no response, then it finally started. It was still in Drive. The hazards wouldn't turn on right after, then everything gradually came back to normal.

    NHTSA complaint 11764902
11. Filed Sep 16, 2026Failure Sep 9, 202631,600 milesBaldwin Park, CABack over prevention

    The contact owns a 2020 Honda Odyssey. The contact stated that while attempting to start the vehicle, several warning lights illuminated. The warning lights flashed continuously. The vehicle was taken to a dealer, where it was diagnosed with a failed multipurpose camera unit. The dealer determined that the multipurpose camera unit needed to be replaced; however, the contact was informed that the failure was not associated with the recall. The contact received notification of NHTSA Campaign Number: 26V423000 (Back Over Prevention). The contact stated that the failure was a known issue with the vehicle. The failure mileage was approximately 31,600.

    NHTSA complaint 11764631
12. Filed Sep 15, 2026Failure Sep 14, 2026Lutz, FLFuel/propulsion system

    On September 14, 2026, my 2020 Honda Odyssey experienced a sudden, severe low-pressure fuel pump failure while idling/parked. The engine began running extremely rough, surging repeatedly between 300 RPM and 1,000 RPM, knocking, and stalling. I was parked at the time, preventing a severe accident. Upon trying to restart, the vehicle turned over multiple times and would only catch when depressing the accelerator pedal, accompanied by cylinder knocking and an engine thermal spike. The vehicle was towed to an independent repair facility (Tuffy Auto Service). The diagnostic scan confirmed DTC P0087 (Fuel Rail/System Pressure - Too Low). A mechanical gauge test showed the low-side fuel pressure dropped to 10 PSI (far below the standard operating pressure of 50–60 PSI). The shop verified that the in-tank low-pressure fuel pump assembly failed internally and requires complete replacement. This failure, symptom pattern, diagnostic code (P0087), and component match the exact defect profile in NHTSA Recall 23V-858 (Denso Low-Pressure Fuel Pump Impeller Failure). However, when checking my VIN, American Honda claims this specific vehicle is excluded from the recall range. American Honda Consumer Relations subsequently refused goodwill assistance due to non-dealer service history and vehicle resale status. This creates a severe safety hazard. A vehicle experiencing a sudden drop to 10 PSI fuel pressure while driving in traffic will lose motive power, stall unexpectedly, and disable power steering and braking assist. I am submitting this report because American Honda has failed to include all affected production batches in Recall 23V-858. I request NHTSA expand Recall 23V-858 to include out-of-range 2020 Honda Odyssey VINs exhibiting identical low-side fuel pump failures.

    NHTSA complaint 11764525
13. Filed Sep 15, 2026Failure Jul 15, 2026Chesterfield, VAAdaptive cruise control, Warnings, Warning

    U3000-49, multipurpose camera unit internal failure, no impact, no glass work

    NHTSA complaint 11764447
14. Filed Sep 15, 2026Failure Aug 1, 2026Valley, ALElectrical system, Body

    The electronic module for rear power tailgate quit working due to water getting inside module. This causes rear lift door to malfunction. Ive seen online there's been a class action lawsuit for this and the door can open randomly. This has not happened to mine. It just quit working and beeps excessively. I had it repaired and it happened again 7 months later. It has been diagnosed by honda dealership. Thanks

    NHTSA complaint 11764405
15. Filed Sep 10, 2026Failure Sep 4, 2026Shelby Township, MIAdaptive cruise control, Automatic emergency braking, Warning

    I randomly received a series of 6 warning messages when starting the car on 9/3/26. They were all warnings related to the automatic safety features such as lane departure, collision detection, auto bright lights, etc.I took it to the dealer on 9/4/26 & they diagnosed an internal failure with a multi-purpose camera embedded in the rearview mirror. The dealer ordered a new part, installed and reprogrammed and recalibrated the camera. This vehicle has been owned only by me, is kept in a garage away from weather exposure, there is no reason for this part to fail on a 6 year old car with a hefty cost to the consumer.

    NHTSA complaint 11763355
16. Filed Sep 8, 2026Failure Aug 2, 2026Lakewood, NJAir bags

    As per the attached there is a recall on this for the airbags and you are in charge of this On Sunday XXX I was driving in [XXX] and suddenly my air bags deployed. (all driver side airbags from front to back, not the steering wheel). I took the vehicle into a body shop they reached out to my insurance for a claim. On XXX my insurer send down an adjusted who inspected the vehicle and denied the claim as the car had no impact and its its not an accident it’s a manufactures defect. On Wednesday 8/5 we took the van into Honda dealer of [XXX]. [XXX] opened the case. I called on Friday and she told me case is being handled by [XXX] On Monday I called [XXX] she said I need to speak to [XXX]. I called [XXX] numerous times and left him messages with no response. For lack of a choice I sent my wife into the dealership to speak to [XXX]. He said its not his job to take care of this I need to reach out to Honda via [XXX]. She asked him why he didn’t call and he did not respond Just said I can take my car back if I want. I called Honda and told them my story they said they will open a case and they gave me a case number. This was a few weeks ago I don’t recall exact date. I called numerous to follow up and both times I was told told case has not been assigned yet but they will accelerate the case. after many times they finally said the opened a case. i should call Honda [XXX]. i drove down and went to [XXX] and he confirmed he was asked in email to say what happenned. still dont have anything. i am more than 5 weeks without a car and need to share my car with my wife and taking uber to work and all i am getting is run around with no clear answer please help me INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    NHTSA complaint 11762755
17. Filed Sep 3, 2026Failure Sep 2, 2026Los Angeles, CAAdaptive cruise control, Automatic emergency braking, Blind spot detection

    ​I am writing to issue a formal complaint regarding gross negligence, logistics failures, and deceptive service practices surrounding mandatory recall work on my 2020 Honda Odyssey. ​1. Failure to Complete Recall Software Work After Overnight Retention On Tuesday, September 1, your service department texted stating: "the software update did not finish. We do need it overnight." We agreed to leave the vehicle. However, upon pickup, the infotainment display confirmed that the update was never completed and remains stuck at Step 5/6 (System Update 24084.7 / Front Control Box B.1.4.6). Retaining a customer's vehicle overnight under the guise of completing software work and returning it unfinished is a direct misrepresentation of labor performed. ​2. Extreme Logistics Failure and Disregard for Customer Time At 12:55 PM on Wednesday, September 2, your department texted: "Ready to go now!" My wife arrived promptly, yet your staff forced her to wait until 2:40 PM—nearly two hours later—before physically releasing the car. This gross delay caused her to miss our children’s school pickup, forcing me to leave my workplace unexpectedly to handle child transportation due to your operational incompetence. ​3. Cascading Network Faults and Critical Safety Systems Disabled Prior to service, the dashboard displayed minor Sensing suite warnings, for which your department quoted an exorbitant $250 diagnostic fee. Upon picking up the vehicle, the dashboard warning count escalated from 5 to approximately 9 active system failures. Due to the interrupted ECU software installation corrupting the CAN-BUS network, the following primary vehicle controls are now completely inoperable: ​Supplemental Restraint System (SRS / Airbag) (Newly triggered post-service) ​Vehicle Stability Assist (VSA) System ​Automatic Brake Hold System ​Electric Parking Brake (EPB) System ​Electric Power Steering (EPS) ​Hill Start Assist ​Honda Sensing Suite (Lane Departure, Collision Mitigation, Road Departure) ​Releas

    NHTSA complaint 11761879
18. Filed Sep 1, 2026Failure Sep 1, 202450,000 milesMedway, MALatches/locks/linkages

    The contact owns a 2020 Honda Odyssey. The contact stated that while driving approximately 60 MPH, the rear hatch tailgate door opened unintendedly. The vehicle was previously taken to the local mechanic who diagnosed the vehicle with electronic tailgate door control module failure, which was caused by water intrusion from the roof drainage system. The control module was replaced but the failure reoccurred on two other occasions, and the electronic tailgate door control module was replaced by the owner. The local dealer and manufacturer were notified of the failures, but no assistance was offered. The failure mileage was 50,000.

    NHTSA complaint 11761236
19. Filed Sep 1, 2026Failure Aug 1, 2026Grandville, MIAdaptive cruise control, Warnings, Automatic emergency braking

    Safety mitigation compoments failure that started as intermitent issues and now is consistent. Warning lights come on for Adaptive cruise control failure, Forward collision failure, Lane departure warning failure, high beam failure, lane keep assist failure and others all link back to the DTC U3000-49 internal multipurpose camera unit failure. This compenet failure puts all oppcpants and other vehicles at risk as driver have become reliant on all feature working properly to enhance safety for all. The problem has been diagnose and inspected by two different dealerships. No accident or vehicle comprimised, the camera component just fails and have talked to two other familes that have had same issue. The issues started as a inteitent flsh of all the warning lights and that moved to a constant issue. Currently you can drive the vehicle for a various amount of time and eventually the lights will go on or the dash will be lit up like a christmas tree as soon as you turn it on. Concerned as this is a vehicle that a majority of Moms and kids drive in, as is the case for our familiy.

    NHTSA complaint 11761197
20. Filed Aug 31, 2026Failure Jun 11, 202655,000 milesFishers, INCamera/sensor

    The contact owns a 2020 Honda Odyssey. The contact stated that five days after the vehicle was repaired under NHTSA Campaign Number: 26V332000 (Air Bags), while starting the vehicle, five warning lights were displayed. The Lane Assist warning light and the cruise control warning light was illuminated. The dealer was contacted, and the vehicle was diagnosed with a front-facing camera failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 55,000.

    NHTSA complaint 11761043