2019 Honda Odyssey Complaint Log

The monocular camera in the windshield failed and multiple warnings are present. It has been well known by multiple consumers the camera fails more often in the 2018 - 2020 Honda Odyssey.

I am writing to open a formal complaint regarding a serious transmission defect in my 2019 Honda Odyssey (VIN: [XXX] ). My vehicle is currently exhibiting symptoms that directly match the 'Transmission Programming Defect' documented in ongoing litigation, specifically symptoms: while accelerating produce rough and delayed shifting; sudden jerking, sudden, harsh accelerations and decelerations; and a sudden loss of power. I am aware of Case No.XXX (XXX v. American Honda Motor Co.) and Case No. XXX (XXX v. American Honda Motor Co.), which allege that the 9-speed ZF 9HP transmission in my model year suffers from a design defect. These transmission failures create a significant safety hazard. Recently my van report code as transmission system problem the second time. We got mechanic checked and confirmed it is transmission issue. The first time when it happened, we drove the van on highway and suddenly it lose power and slow down by itself. there was no response even we applied gas. We went down highway and drove to a close-by repair shop. they replaced some part for us but it didn't resolve the issue. This time since the error comes, it won't speed up in lower speed except the speed goes beyond 40-50 miles plus. when we back the car, it responses slow or none. it comes with big noise also now. it definitely gets worst. The very common issue when you stop and start to move, it never responses from the beginning even we applied gas, even the passenger can feel the reluctance. it also happens when the van turns. we also had the experience when driving on the highway, it speeded automatically without driver applied the gas. It feels like someone pushing us behind. there was Transmission Control Unit recall for 2018-2019 Honda Odyssey (Touring/Elite). Honda actually knows the issue but they didn't reveal this to their customer. This brings life threatening concerns on the highway. I hope this complaint can save lives and family INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Issue: Intermittent infotainment failure – MOST network connection lost I am reporting a recurring electrical failure involving the infotainment system in my 2019 Honda Odyssey. The system intermittently loses all audio and displays a “MOST network connection lost” message. At times, the screen also goes black and reboots. This issue has occurred repeatedly over time, especially after extended driving (e.g., long trips). The audio will stop working completely, and the system may or may not recover after restarting the vehicle. Multiple repair attempts have been made, including replacement rear entertainment system. Despite these repairs, the issue continues to occur. Based on the error message and symptoms, this appears to be a failure within the MOST communication network, potentially involving the amplifier or related components. This creates a significant distraction while driving, as the system becomes nonfunctional and unpredictable. I am unable to access hands free phone capability and navigation features. I am also unable to access the heating and cooling features in the car when the screen is black. This has been happening since about one week after I purchased the vehicle in 2021. I am concerned that this may represent a broader defect affecting multiple vehicles.

On April 13, 2026, I brought my 2019 Honda Odyssey to a Honda dealership in Chicago, IL for a dealer-initiated recall service. The dealer contacted me and asked me to come in. Before the recall service, the vehicle had zero warning lights, zero error codes, and was operating completely normally. Immediately after the recall service was completed, the following warning lights appeared on the dashboard: Brake System warning, Hill Start Assist Problem, VSA (Vehicle Stability Assist) warning, and additional stability/steering system warnings. None of these warnings existed before the service. I returned to the dealership the same day. The service team cleared all error codes. However, within minutes of driving off the lot, all warning lights reappeared. This confirms the issue is persistent and not a one-time post-update self-check. I returned a second time. The service manager stated the warnings were not caused by the recall service and refused to investigate further. The dealer quoted 800 for diagnostic work. I also contacted American Honda by phone and was told they could not intervene. With the Brake System and VSA warnings active, the anti-lock braking system and vehicle stability control may not be functioning properly. This puts me and other drivers at risk, especially in emergency braking situations and on slippery roads. This pattern of multiple safety warnings appearing immediately after recall service on 2019 Honda Odysseys has been reported by other owners. The vehicle and its warning lights are available for inspection upon request.

I was driving to work on April 7th, 2026 and parked the vehicle at my company parking lot. Prior to parking, I noticed unusual smell and then parked the vehicle. I parked the vehicle around 8.10 am and I got the call from my facilities manager around 8.30-8.40 am that my car caught on fire and by that time I noticed Houston Fire Department extinguishing the fire. There were no check engine sign and this vehicle is a brand new vehicle when I purchased. Though there is no recall associated with my VIN #, the fire issue is similar to recalls for 2019 Honda Odysey. The recall numbers are 23V-751( Engine Fire Recall) & 20V-066 ( Electrical Wiring fire Recall)

[Incident Description & Manufacturer's Bad Faith] On April 6, 2026, an authorized Honda dealership (McConnell Honda in Montgomery, AL) diagnosed my vehicle (2019 Honda Odyssey EX-L, 143,097 miles) with DTC P219A (Rec replacing fuel injector set and fuel feed pipe at this time), requiring a fuel injector replacement. This exact mechanical failure is documented in Honda’s official Service Bulletin 21-010. The bulletin acknowledges that defective fuel injectors can cause engine misfires, loss of motive power, and engine stalling while driving. These conditions present an immediate and severe safety hazard. Honda established a 150,000-mile warranty extension limit for this defect in TSB 21-010. My vehicle has 143,097 miles and is well within this limit. However, American Honda Corporation has arbitrarily refused to repair the vehicle. Furthermore, on April 21, 2026, the assigned Honda Case Manager left a voicemail officially denying the repair. He explicitly refused my repeated requests to provide this denial in writing. In the voicemail, he falsely stated that my vehicle at 143,000 miles is "well outside the range" for assistance, directly contradicting Honda's own written 150,000-mile bulletin. Please review the attached documents, including the official dealership diagnostic report (DTC P219A), the repair estimate, and a copy of TSB 21-010. I have also secured the audio recording of the case manager's voicemail to prove their bad faith. Honda is knowingly leaving a dangerous vehicle with a confirmed, documented fuel system defect on the road, while actively providing false information to the consumer to avoid repair costs. I strongly request the NHTSA to investigate Honda's deceptive and dangerous practice.

On Interstate 65 4/4/2026 during light traffic, after a rain storm, however with no rain currently occuring, our vehicle experienced an event where the collision avoidance system dropped out speed from 70 miles an hour to 35, nearly causing a rear end clission with a vehicle behind us. The dashboard made no indication of any occurance, and the breaking seemed to occur with no indicator of there being anyting in front of us at the time of the incident. This has occured before however after rainstorms, and while attempting to make left hand turns. This however was the first incident in which it clearly caused a near miss collision event.

My 2019 Honda Odessey has had transmission issues since the very beginning. I've experienced jerking/shaking, hesitation before accelerating, delayed shifting, sudden loss of power. Fortunately none of this has resulted in any accident or injury. Unfortunately, yesterday (4/4/2026) I got charged $271.34 to have to transmission warning light read only to be told, "we cleared all dtc then test drove the vehicle. No dtc found after we drove the car...if the consumer complain again he will have to replace the transmission." Of course the warning light appeared again today. The dealership seems to be completely unaware of the multitude of transmission issues documented even though this appears to be a known and well documented defect based on the class action lawsuit Browning, et al. v. American Honda Motor Co., Inc., et al. They charge me for the analysis and send me on my way as if they have no idea what is going on with my vehicle. I am the sole owner and have kept the vehicle well maintained at Leith Honda, 3940 Capital Hills Drive, Raleigh, NC 27616 and I have had all manufacturers recalls handled in a timely manner. I'm sure they can provide service records if needed. The bottom line is they are not being fully transparent and I am paying for their lack of transparency and more importantly putting me and my family at risk by not disclosing the potential risk due to the faulty transmission in these vehicles.

Trunk is flooding when it rains.

My car issues a emissions systems problem, upon bringing it to the dealer it was identified that the fuel injector system failed. This is a known issue with 2019 Honda Odysseys. Upon running the VIN on my vehicle, it was found it does not qualify under the extended warranty even though this is a known issue.

The contact owns a 2019 Honda Odyssey. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated and remained illuminated. The dealer was notified of the failure, but the vehicle was not repaired. The manufacturer was not notified of the failure. The contact believed that the failure was related to a sensor malfunction within the rearview camera. The approximate failure mileage was 114,000.

I am reporting a safety issue involving my 2019 Honda Odyssey transmission. Since early ownership, the vehicle has had ongoing hesitation and delayed response when accelerating, especially during gear shifts. Over time, this condition has worsened and now includes intermittent loss of power when pressing the accelerator, followed by sudden jerking or lurching forward. The most serious incident occurred recently when the vehicle unexpectedly shifted into park while moving in a parking lot, creating a dangerous and unsafe condition. Additionally, there have been multiple instances where the vehicle hesitated in intersections, creating a risk of collision due to lack of response when attempting to accelerate. Honda dealership technicians have acknowledged that these vehicles are known to have rough or problematic shifting, indicating this may be a broader issue. The final issue has resulted in the vehicle being towed to the dealership for a full evaluation.

Right slide door problem on dashboard. Continues to beep and blink right slide door problem while driving. The door will not open when stopped and in park.

I was merging onto I-85 with my sister was in the front passenger seat, and my son was behind me on the driver's side. I heard a very loud bang/pop and looked to my right and immediately saw the curtain airbag deploying on the passenger side. I did not feel anything to indicate I hit something, no noise, no beeping from my vehicle safety features, no shake of the steering wheel to indicate I veered off the road. Nothing of that nature. I was able to get to the shoulder of the highway safely, despite not being able to see out of the passenger side of the vehicle due to the deployed airbags. It was confusing and disorienting because I knew we were not involved in a crash, but the airbags still deployed. I called 911 and started assessing any injuries for my son or my sister. The police arrived a short time later and opened the front passenger door and immediately cut the airbag to assess the situation. The police officer said there was no visible damage to the van and no other vehicle nearby to indicate a collision. I asked if the tire blew and he said no, he couldn't see any damage. This was an incredibly dangerous situation that could have ended with serious injury or worse. We were traveling on an interstate and the airbag deployment could have injured me and prevented me from getting off the road. In addition, the airbag deployed right where my younger son's car seat is. He would have suffered serious injury had he been in the vehicle when this happened. The shop doing the repair ran computer diagnostic testing and I instructed them to keep all parts that are being replaced. The van has been inspected by a Honda body shop manager as well as an American Honda technician. There were no warning lights or indications before the airbag deployment.

There is a delay in acceleration. When at stop light, stop sign, or moving forward after backing out of driveway, we are experiencing a 2-4 second delay in acceleration after putting pressure on the gas pedal. This has caused scary incidents when trying to turn left at stop lights or stop signs. When talking to Honda dealers, they have not been helpful in determining the cause of this.

Both power sliding doors are malfunctioning, with the left side being critical. The dashboard intermittently flashes "Door Open" and "Left Sliding Door Problem" warnings during travel, regardless of speed or road conditions (highway, low-speed, and cornering). A certified Honda technician (Case #16203079) confirmed DTC B2037 is stored for the left sliding door ratchet switch. The diagnostic report explicitly states the rear latch is failed/stuck in the open position, resulting in a half-latched state that "CAN OPEN WHILE DRIVING." The right door also shows intermittent issues with the ratchet switch and pinch sensor. Despite this documented, life-threatening safety defect, American Honda has refused repair assistance. I have video evidence of the warnings flashing while in motion.

There is a plastic cap holding in a metal bar on the underside of the car seat that came off. The metal bar could potentially become a projectile. I’m unsure of the purpose of the metal bar. If it is for latching into the base, structure integrity, or seatbelt. The car seat has not been inspected by the manufacturer has requested it be shipped back and has provided a shipping label, however I have to acquire a new car seat to use in the meantime first and find a box that will accommodate the car seat. Normal everyday use caused the part to come off. I’m not sure at what time it happened or where the plastic cap is.

Multiple safety systems on my 2019 Honda Odyssey Elite have simultaneously failed, including LKAS, ACC, Collision Mitigation Braking System, Auto High-Beam Headlights, and other driver-assist features. The dashboard displays warnings for nearly every safety-related system, and the vehicle disables these features without warning. **Detailed Description of the Problem:** Whenever I start my vehicle, multiple error messages are displayed related to the Lane Keeping Assist System (LKAS), Adaptive Cruise Control (ACC), Collision Mitigation Braking System (CMBS), Road Departure Mitigation, Auto Headlights, and other safety features. These warnings appear together and persist even after restarting the vehicle. Apparently, this issue is widespread among 2018–2020 Honda Odyssey owners, with many reporting the same cluster of system failures. The problem appears to be related to a malfunction in the vehicle’s electrical system, sensors/ cameras, or control modules. In my case, the failures occur without any external damage, weather event, or driver action that would explain the sudden loss of safety functionality. When these systems fail, the vehicle disables critical safety features such as automatic emergency braking, lane keeping, adaptive cruise control, and automatic headlights. This creates a significant safety risk, especially at highway speeds or in low‑visibility conditions. **Frequency:** The issue occurs whenever the vehicle is started, affecting my driving everyday.

Five days after getting back our car from the Honda dealership where they “fixed” the two recalls all warning lights came on and not turn off. Steering, breaking, accelerating all are difficult. There were no issues prior to the dealership “fixing” the recalls. The car was just at our mechanic for brakes and they check our engine, fluids etc every time. There were no prior issues.

Multipurpose Camera Unit/Millimeter Wave Radar Internal Electronic Failure diagnosed with U3000-49 error code in my 2019 Honda Odyssey. The problem has been confirmed by the Honda service center and reason stated is low heat resistance. Coat of repair is approx $2000 and this is purely due to low heat tolerance levels of the Honda component

The ACC is failing in the car. It is due to a faulty radar sensor located behind the rear view mirror that according to the dealership gets to hot it the sun and begins to deteriorate.

I was commuting home, about 30 minutes into the drive, all of the dashboard and radio went blank for a few seconds. It came back on and the break light, anit-collision, lane departure, lights were all flashing. It did this 2 more times in the over the next 5 minutes. I was concerned for my safety because I wasn't sure if my breaks and all the other things were working propoerly. I didn't know how fast I was going or if my car was going to stall on the highway. I see that a recall was issued by honda yesertday, not for my car model, but a similar issue (a software bug can cause the instrument panel and rear-view camera to go blank). It has not yet been inspected by a repair person. There wre not any warning lights prior to this happening.

All of a sudden, I received multiple warnings that the forward collision warning system, lane keeping assistance system, automatic emergency braking system, adaptic cruise control, were not working. After looking for this part (front camera: 36160-THR-A11-M1), I see that it is very expensive to purchase and install. More importantly, I have come to learn that this part is failing on my 2019 Odysseys. I feel that the manufacturer should be held responsible if this is such a widespread problem.

I own a 2019 Honda Odyssey with approximately 100,000 miles. The power tailgate began malfunctioning suddenly. The rear hatch repeatedly unlatches and beeps as if it is opening even while the vehicle is in motion. After inspection, the dealership stated the tailgate control module failed due to water intrusion into the rear hatch area. I was told this is a known issue affecting multiple model years of Honda Odyssey vehicles (2018–2021), but there is currently no recall. This malfunction creates a potential safety hazard because the tailgate may unlatch unexpectedly while driving and causes continuous warning alarms and electrical issues. Owners are being required to pay for repairs caused by what appears to be a design defect allowing water to damage the tailgate module. I am requesting that this issue be investigated for a potential safety recall.

My infotainment system has gone completely black, resulting in the loss of several critical functions, including the rearview camera, AC vent direction controls, navigation, and radio. This has made reversing significantly more hazardous, and the lack of proper AC control is especially inconvenient during the summer. The Honda dealer performed a recall-related diagnostic, but it did not resolve the issue. After further inspection, they concluded that the infotainment unit has completely failed. However, they were unable to identify the root cause and recommended a full replacement at a cost of $2,850. I contacted Honda America to request assistance or a goodwill discount, but my request was declined. Due to the high cost, I have not proceeded with the repair. Although my vehicle is not currently on the recall list and has approximately 70,000 miles, there is a known history of infotainment system issues in Honda vehicles. A complete failure of this unit at this stage is unexpected and potentially related with their manufacture, as it is generally intended to last the lifetime of the vehicle. Thank you for your consideration

All the warning lights shows up in the dash and the problems are diferent like bad battery or front monocular camera and all the futures assistence stop working like automatic brake cruise control.. etc

The front monocular camera assembly (Honda part number 36160-THR-A81) on my 2019 Honda Odyssey Elite failed and is available for inspection upon request. When the failure occurs, the vehicle displays multiple warning messages including “Collision Mitigation System Problem,” “Adaptive Cruise Control Problem,” “Lane Keeping Assist Problem,” “Road Departure Mitigation System Problem,” and “Auto High Beam Problem.” As a result, several driver-assist safety systems are disabled, including automatic emergency braking, adaptive cruise control, lane keeping assist, and road departure mitigation, which reduces the vehicle’s active safety features and increases the risk of a collision. The warnings appear simultaneously on the dashboard while driving and remain active until the vehicle is restarted. The condition has been reproduced multiple times and has been confirmed during diagnostic inspection by a service technician. The camera failures are very common and are a design defect. The design was changed in later years but there was not a recall for the 2019 models. This is a very expensive fix and should be covered by a recall.

Water is pooling in trunk of van. There appears to be a failed body weld or seam sealant in the trunk area. Vehicle has not been in any incidents since purchased new. Spoke to a service adviser for Honda and they indicated a seam sealant may have failed as well. Have searched internet and found this is occurring frequently with this model.

My 2019 Honda Odyssey is currently diagnosed with a connecting rod bearing failure, which matches the safety defect in NHTSA Recall 23V-751. While my VIN is excluded, I am reporting this as part of the NHTSA Investigation PE25-008. For several months leading up to the failure, I noticed a faint, repetitive knocking sound coming from under the hood. During my regular service visits to authorized Honda dealerships (including a visit in December 2025 at approximately 80,000 miles), I mentioned these unusual noises and asked the technicians to verify the vehicle's safety. On at least one occasion, repairs were made to the steering system to address noises, but the engine knocking persisted and eventually worsened until the rod bearing failure was confirmed in January 2026. This defect presents a serious risk of sudden engine seizure and loss of motive power at highway speeds.

The car has started giving warnings every time I turn it on (as of 6 months ago): adaptive cruise control problem, collision mitigation system problem, auto high beam problem, lane keeping assist problem. It seems there must be a fault in the windshield camera that renders all these safety features useless. The repair shop stated that windshield camera isn’t working and is a $2k or more to repair. I am now driving a minivan that doesn’t have many important safety features and this is very dangerous.

While driving, the check engine light appeared and the vehicle began running rough and hesitating during acceleration. The engine experienced a noticeable loss of power, which created a dangerous situation in traffic and nearly caused an accident when attempting to accelerate with surrounding vehicles. The vehicle was taken to a Honda dealership for diagnosis. The dealership confirmed a failed fuel injector on cylinder number four and a catalyst efficiency fault code (P0420). The dealership explained that the failed injector may have caused improper fuel delivery and contributed to damage to the catalytic converter. The dealer also indicated that similar fuel injector failures are addressed in Honda Service Bulletin 21-010 for this model year. However, my vehicle was not included in the VIN range covered by the bulletin even though it is a 2019 model and uses the same fuel injector part number referenced in the bulletin. The issue was confirmed by an authorized Honda dealership and the recommended repair was replacement of the fuel injector kit and catalytic converter. Honda corporate declined to fully cover the repair costs despite the similarity to the known issue described in the service bulletin. This engine malfunction created a loss of power while driving, which could present a safety hazard in traffic.

The driver-side power sliding door latch, motor and cable system on my 2019 Honda Odyssey Elite failed. Honda performed Recall A88 (sliding door handle cable repair) in 2021. After this repair the door began intermittently failing to close fully and would close about 80% before the sensor triggered it to reopen. This continued until this week when the door suddenly stopped latching completely. The automatic door buttons no longer work and the door can only be moved manually. I believe my vehicle should also be included in recalls Z33 and O36 addressing sliding door latch failures affecting similar 2019 Odyssey vehicles. The failed components are available for inspection upon request. This defect creates a serious passenger safety hazard. Because the door will not latch, it opens while driving. The automatic function does not work and the door can be moved manually but will not latch. This creates risk of passenger ejection, especially children, and the possibility of the door opening during a crash. The vehicle is unsafe to operate. Yes. The failure was reproduced and confirmed by a Honda dealership that inspected and diagnosed the sliding door failure. The vehicle was inspected by a Honda dealership and I was charged a diagnostic fee. Honda refused recall or goodwill coverage because my VIN is not included. I request the repair be performed free under recalls Z33 and O36 and the diagnostic fee reimbursed. I am waiting for NHTSA inspection and request Honda be required to include my vehicle and repair it at no cost. Before total failure the door would close about 80% and automatically reopen. When it stopped working this week, the dashboard displayed a “Left Sliding Door Problem” warning and the vehicle produced continuous beeping while driving.

The sunroof/moon roof glass suddenly popped and exploded. No debris of any kind or any car was near me. My car was alone. The roof spontaneously made a “pop” sound and exploded. I’m lucky I wasn’t killed, injured, or in an accident. Glass that explodes and shatters can cause serious harm.There is obviously some sort of defect in Honda’s sunroof glass. Please investigate this thoroughly.

while driving on an open road driver's side air bag suddenly deployed causing an unsafe driving condition

Vehicle intermittently loses propulsion during acceleration when merging. Engine RPM remains low despite throttle input. After a delay, transmission re-engages abruptly with a metallic scraping noise. This creates unsafe merging conditions. This happened today, 2/14/2026 in 4 instances in the same trip. It has also occurred approximately 50 other times over the past six months when the mileage was as low as 66,100 miles.

Multiple possibly related issues: 1) Power Lift gate (rear hatch) will on occasion close unexpectedly and can trap a person between the hatch and the back bumper of the car. Very dangerous for children and for handicap adults who cannot move quickly (I have had both have issues with mine). (Has consistently occurred since purchase, dealership refuses to acknowledge/correct issue when it was under warranty). 2) Random electrical problems (various sensors malfunctioning, sliding doors unable to open/close, power lift gate would not close/latch). Occurred twice (Jun 2023, Feb 2026).

Both rear power sliding doors on my 2019 Honda Odyssey failed at approximately 74,000 miles. The sliding door motors can be heard running, but the doors do not move and cannot be opened normally. The doors are available for inspection upon request. This failure prevents rear passengers from safely exiting the vehicle. In an emergency situation, this could prevent evacuation and creates a serious safety risk, especially when transporting children or passengers seated in the rear. A dashboard warning message related to the sliding doors appeared at the time of failure. The condition occurs consistently on both doors. The vehicle was inspected by an authorized Honda dealer, who confirmed a malfunction in the sliding door system and provided a repair estimate. The vehicle has not been inspected by police or insurance representatives. This appears to be a significant sliding door system failure affecting both rear doors simultaneously.

My driver sliding door will not open or close manually or automatically. This is concerning because if I was to ever get in a wreck and my van was struck on the passenger side, we wouldn’t be able to get out of the car because the other door won’t open. I did see that 107,000 vehicles were recalled due to this same problem I’m having. Obviously looking online, this is affecting more than 107,000… I already had to fix my passenger sliding door due to a faulty sensor. What next?

My 2019 Honda Odyssey had an emissions code come up with OBD II sensor code of P219A which led to research revealing that the code was a result of fuel injector failure. I took my van to the dealer who revealed that based on my VIN, I am not eligible for the extended warranty issued by Honda in 2021. This has resulted in a $1900.00 repair bill that should be covered based on history and problems. ref: [XXX] and [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Failure of camera unit leading to all safety systems requiring it becoming non operative. Well known issue and widely reported.

Our 2019 Honda Odyssey EX-L was our primary family vehicle. We conducted all routine maintenance as required by Honda, including transmission fluid exchange. Our vehicle experienced rough shifting consistently and at 102,000 miles experienced a total failure in the transmission dog clutch, with Emissions lighting also being present. Vehicle required a tow to Honda and was cited" internal failure in the transmission. The confirmed related DTC's are P0841: Transmission fluid pressure sensor/switch A circuit range/performance; P0844: Dog Clutch malfunction; P0170A: Dog Clutch Abnormal operation. Parts $:5,736.73/Labor $2,385 plus fluids and freight. We were not aware Honda used the ZF transmission during this year model and experiencing rough shifting up to 102,000 miles which prompted our investigation. Thankfully, the car was parked however, had this been while on the road, this would have presented a major safety and risk to our family and others. This has set our family back quite a bit as we have to replace the transmission and cannot guarantee the new one won't provide similar issues. Honda denied our good-will assistance request. We bought a Honda under the assumption it was a reliable brand. We will never buy Honda nor recommend again. Terrible experience.

Multiple system problems constantly on my dashboard. Has brand new spark plugs and battery and problem is still there.

All Honda Sensing / ADAS safety warnings appear at the same time while driving or shortly after starting the vehicle. When this happens, all driver assistance systems are disabled, including: •Adaptive Cruise Control (ACC) •Lane Keeping Assist (LKAS) •Collision Mitigation Braking System (CMBS) •Road Departure Mitigation •Automatic High Beam When the failure occurs, the vehicle displays multiple safety system warnings and the entire driver assistance system shuts down, leaving the vehicle without any ADAS safety features.

"Emissions system problem" engine warning light has been on for quite some time. I know there is a service bulletin related to this issue, but my VIN is not covered. There are also several other warning lights that occasionally pop up, and my Honda dealer believes these are all related to the initial warning light. They mentioned that sometimes these systems start shutting down so the vehicle runs properly. Recently I received "transmission system prolem" (in conjunction with the slew of warning lights I have frequently been getting). No apparent issues until recently when I was driving on the interstate. The engine started to become very loud and when I looked at the RPMs it was very high, over 5,000 RPMs. The car wasn't shifting out of first gear at 55MPH. I immediately slowed down and got off the interstate as soon as possible. After arriving home, we unhooked the battery, re-installed, and all of the warning lights were gone. Again, the Honda dealer believes all of these issues were realted to the "emissions system problem", which is part of a service bulletin that should be covered by warranty extension. I beleive my VIN should be included, and the recent transmission system problem which happened on the interstate was very dangerous and could have ended very badly, had I not been in tune with what was happening.

As I was driving the car computer showed overheating, brake failure, transmission failure and the car started shaking and the engine died. I had the car towed by triple AAA to a auto repair shop, but the next day when they went to fix the problem could not replicate it.

The contact owns a 2019 Honda Odyssey. The contact stated that while driving at approximately 65 MPH, the vehicle unexpectedly entered LIMP Mode, and the check engine warning light started flashing. The vehicle was able to restart following the failure. The vehicle was towed to an independent mechanic, where it was diagnosed that the connecting rods had failed. The contact was informed that the connecting rods needed to be replaced, or the engine needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 105,000.

**Vehicle:** 2019 Honda Odyssey **Components Affected:** Forward Collision Avoidance, Lane Departure, Adaptive Cruise Control, Braking System, Exterior Lighting, Electrical System, Instrument Cluster **Complaint Summary:** Multiple safety systems on my 2019 Honda Odyssey have simultaneously failed, including LKAS, ACC, Collision Mitigation Braking System, Auto High-Beam Headlights, and other driver-assist features. The dashboard displays warnings for nearly every safety-related system, and the vehicle disables these features without warning. **Detailed Description of the Problem:** Whenever I start my vehicle, multiple error messages are displayed related to the Lane Keeping Assist System (LKAS), Adaptive Cruise Control (ACC), Collision Mitigation Braking System (CMBS), Road Departure Mitigation, Auto Headlights, and other safety features. These warnings appear together and persist even after restarting the vehicle. Apparently, this issue is widespread among 2018–2020 Honda Odyssey owners, with many reporting the same cluster of system failures. The problem appears to be related to a malfunction in the vehicle’s electrical system, sensors, or control modules. In my case, the failures occur without any external damage, weather event, or driver action that would explain the sudden loss of safety functionality. When these systems fail, the vehicle disables critical safety features such as automatic emergency braking, lane keeping, adaptive cruise control, and automatic headlights. This creates a significant safety risk, especially at highway speeds or in low‑visibility conditions. **Frequency:** The issue occurs whenever the vehicle is started, affecting my driving everyday.

The 2019 Honda Odyssey experienced an engine failure while driving on the highway in the Chicago area in Illinois. The engine began knocking, then failed completely. It was towed to a local Honda dealer, where the technician noted visible metallic flecks in the oil once drained. No check engine or other warnings occurred prior to the failure.

The computer system for the sliding doors and back hatch do not work properly. They will occasionally stop working or will stop mid-open or close. In addition, on three separate occasions the sensors did not work. One time the back hatch started to close while I was getting something out of the trunk. It did not sense by body and would not stop. I tried to stop it physically but the hatch continued to close. If I had not gotten out of the way, it would have crushed me. This happened to my husband on a separate occasion as well. He is athletic - [XXX} and [XXX] and was pushing up with all of his strength and the hatch continued to close on him before he had to jump out of the way. On the third occasion - the sliding side door started to close on my [XXX] as I was helping him into his car seat. This issue WILL KILL SOMEONE. The 2019 Honda Odysseys need to be recalled immediately. I alerted my local Honda service center (Don Jacobs in Lexington, Ky). I asked them to notify Honda and they told me they wouldn't do that unless more people had similar issues. They have attempted to fix the computer system on several occasions and always say the issue is fixed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Life-Threatening Acceleration Lag: The vehicle is experiencing severe power loss during critical driving moments, for example, while entering intersections or attempting to re-accelerate into moving traffic. When I attempt to speed up, the engine fails to respond initially, leaving the vehicle stranded in the path of cross-traffic. The engine finally engages only because I am forced to floor the accelerator pedal out of necessity, which then causes the tires to squeal when power eventually returns. Intermittent Starting Issues: The vehicle frequently fails to start smoothly on the first attempt; a known symptom associated with the fuel pump impeller deformation described in Recall 23V-858. VCM Shudder and Hesitation: I am experiencing the distinct vibration and rhythmic shudder associated with the Variable Cylinder Management system. This symptom is most prominent during deceleration or coasting; specifically, when I lift my foot off the accelerator without applying the brakes, the system triggers a noticeable shudder as it incorrectly manages cylinder engagement/deactivation. Suspected Catalytic Failure (Codes P0420/P0430): Both catalytic converters are exhibiting inefficiency codes simultaneously, which are highly atypical and occur well before the expected component lifespan. This clearly points to upstream defects. Specifically, the catalytic substrate has been poisoned by carbon and phosphorus deposits from the documented oil-burning defect and has suffered thermal damage due to the improper fuel mixtures caused by the defective high-pressure fuel pump (Recall 23V-858).