2019 Honda Odyssey Electrical System

TAILGATE MALFUNCTION - unable to open and close tailgate. Warning message on dash states - TAILGATE POWER FAILURE

Odometer Fraud. The contact purchased a 2019 Honda Odyssey. The contact discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 54,970 and at the time of registration, it was discovered that the mileage was 254,970.

I am the original owner of this vehicle and have performed all regular maintenance on schedule. It is our primary family vehicle and now over 120,000 miles. Since purchasing it new in 2018, the fuse for the horn has blown out several times each year. Most recently, the horn has stopped working, but the fuse remains intact. I am at a loss as to how to repair without taking apart the steering wheel which could damage the airbag. This is a serious safety issue as the horn is necessary to avoid accidents. I have spoken to the service department at my dealer and they are unaware of any recalls affecting the horn.

While driving, infotainment screen went black and audio died. Restarting car did not solve the problem. Dealer pulled and reinstalled a fuse which "fixed" the problem but said it was a known problem and could recur. It has been several years since it has happened but I figured I'd report it since some car settings are only available through the infotainment system.

Sometimes the door locks will not lock, an obvious safety issue. I'm certain all the doors are closed and contacts are clean. I'm guessing a flakey relay because it doesn't happen a lot, perhaps 8 times in the past 12 months. I reported it to Honda America but they said the dealer has to verify it and the dealer has been unable to reproduce it.

2019 Honda Odyssey - the power tailgate stopped working. First I saw a tailgate malfunction warning in the dashboard. I pulled over to make sure the tailgate was closed all the way. It opened and closed. By the time I got home, it couldn’t open or close at all. I called two local dealers and they seemed hesitant to work on it. The only way to open the tailgate is with the manual emergency latch.

Majority of the time while driving you can hear static popping noises from the speakers. Sometimes it will degrade to not having any audio via radio, res, or phone connection. When it is in this state if placed in reverse, the backup camera will not function or display on infotainment screen.

My tailgate originally would not open and now the vehicle is inoperable. This was caused by a leak through the roof, where Honda failed to properly seal a seam, causing water to get onto the trunk control module and damage it. I see online this is happening with almost all Gen 5 Honda Odysseys and is clearly a manufacturing defect, causing thousands in repairs for each.

Nine simultaneous, spontaneous errors while driving in town. Error messages were as follows: * Emissions System Problem * Brake System Problem * Transmission System Problem * Brake Hold System Problem * Power Steering System (EPS) Problem * Vehicle Stability Assist (VSA) Problem * Hill Start Assist Problem * Road Departure Mitigation System Problem * Blind Spot Info System Problem

Water was leaking inside of the back driver side corner of the tailgate. The water built up inside of the PTG module and ruined it. The tailgate lock suddenly failed and opened up while driving down the road. The warning lamp illuminated that said tailgate error. No wreck just a sudden fail. i have video of the module pouring water out of it as i removed it from the vehicle.

The camera sensor in my 2019 Honda Odyssey EX-L failed due to excessive overheating. The sensor reached extreme temperatures, leading to a complete system failure. As a result, the vehicle became inoperable. The failed component is no longer available for inspection as I was forced to purchase a replacement due to the vehicle’s dependency on it for proper function. The failure of the camera sensor created multiple dangerous situations: Loss of vehicle control: The vehicle lost acceleration functionality and automatically shut itself down, which could have led to a crash in traffic.Dashboard warning lights: All dashboard lights illuminated simultaneously, indicating a severe system failure. Fire hazard: The sensor was emitting extreme heat, creating a potential fire risk due to overheating electronics. Exposure to the elements: The sensor’s placement in direct sunlight likely contributed to its overheating, further increasing the risk of failure. Mandatory dependency on the sensor: The vehicle was rendered inoperable without the functioning sensor, leaving me without a safe means of transportation. A Honda dealership inspected the vehicle and confirmed that the sensor had failed due to overheating. However, they stated that the cost of replacement, installation, and recalibration would be my financial responsibility. The issue was evaluated by a Honda dealership, but no manufacturer action was taken to address the failure beyond suggesting an expensive repair. All dashboard warning lights illuminated simultaneously. Loss of acceleration control occurred before the vehicle shut down automatically. The sensor was emitting extreme heat prior to the failure. The issue persisted after restarting the vehicle—after a 10-minute cooldown, the vehicle restarted but failed again after 3-5 minutes.This malfunction was not only a significant inconvenience but a major safety hazard. The sensor’s location makes it highly susceptible to overheating.

Power Tailgate failure. The power tailgate no longer opens and closes. There seems to be no cause for this. I have read, however, on several forums that this is a manufacturing defect and that rainwater is getting through the seal to damage the control motor. I cannot open the tailgate from outside the vehicle. This is a safety concern. There were no warnings leading up to this. I called my local Honda dealer to find out if there were any safety recalls, but there were none. I think there should be--this vehicle is only 6 years old.

Water intrusion near rear tailgate control box. The circuit board was ruined by water and the automatic tailgate was at first malfunctioning and then would not function at all. The circuit board had to be replaced.

Water intrusion from driver side roof rack seal caused water entering the vehicle. Trunk underneath carpet wet. Power Tailgate stopped working and it was identified that the ECU (control unit) part number 74970-THR-A12 located behind the rear driver side trunk trim got water into it and corroded. Need to be replaced. Roof need to be re sealed. Further damage/corrosion from water which already was entering the vehicle unknown at this point.

At the grocery store and trunk would not close. Warning on the dash says “power tailgate problem”. Stranded my wife in the parking lot until she was able to get in touch with me to tell her she had to close it manually. It’s very hard to overcome the actuators manually if you’re a smaller statured person.

The Tailgate Control Module failed on three different occasion on my 2019 Honda Odyssey mini van causing the tailgate to fail to be opened by fob or manually. This was caused by water leaking through the roof rail where there was a failure by the manufacturer to properly seal the area between the roof and body.I have two of the failed TCMs in my possession.On 2 different occasions the tailgate flew opened as I was driving at approximately 55 mph.At that time the tailgate could not be closed entirely and caused my battery to run down entirely.The problem has been confirmed by the local Honda dealership and another independent service center.A warning and beeping noice came on as the first sign of the problem.I have photos of the crack and what was done to try to remediate the problem.This problem has been recognized and occurred to many other owners of 2018 - present day Honda Odyssey mini vans.

The radio stopped working when looked into online it’s a known issue with the cords behind the radio coming loose on its own causing the radio backup camera climate control everything that that console is used for stops working the screen is black and does not come on after checking fuses the radio console is still out. with the cords coming loose on its own when i have no access to them honda should be held responsible for this repair.

The issue I am experiencing is a power tailgate control module failure, specifically part# 74970-THR-A12. The part is located on the driver side rear, and the issue appears to be due to a water leak coming between body seams and slowly dripping down into the module. Over time the water damage seeps into the control module casing and causes corrosion on the circuit board. This, then, renders the power tailgate inoperable. In my case, it just suddenly stopped working. A couple weeks, while the tailgate still did not work, I did receive a message saying "tailgate open" while I was driving. But, that issue went away on its own, and the tailgate didn't appear to actually be open. It is unclear if this type of electrical failure could also cause a tailgate to open unexpectedly while driving. Looking up this issue online, it appears that many other Odyssey owners have experienced the exact same issue (water leak and corrosion on control module). This should be considered for a recall given that so many drivers have experienced the exact same issues under the exact same circumstances. It seems like the issue could be solved by simply determine where the leak is occurring from. While my Odyssey is still under an extended warranty, the dealer charges to perform a diagnostic do not make it worthwhile for me to have them determine if it is covered, and I will choose to replace the part on my own. Below I have attached 4 photos showing my specific circuit board with water damage, plus the area in which the control module sits in the car, where you can see rust due to water seepage. I also experienced rapid and sudden battery drain in the past, and others in the forums that experienced this tailgate issue have also noted that they believe it may be related. Even after I replace the part, I am afraid of the issue reoccurring and/or the water leaks creating additional electrical problems in the car.

What component or system failed or malfunctioned, and is it available for inspection upon request? the tailgate will not open. Yes, I can have it inspected. How was your safety or the safety of others put at risk? This limits the ability to use the tailgate. Has the problem been reproduced or confirmed by a dealer or independent service center? I have brought the car into the dealership to fix the tailgate. The motor was replaced and they stated they sealed the back to prevent water from getting in. It has since broken again and currently it will not open. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The first time it broke the dealership inspected and fixed the problem. It is now broken again and I haven't brought it into the dealership yet. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? I got a tailgate error multiple times, also the battery was draining really quickly - which I think was due to the trunk issue.

My Honda odyssey 2019 started with issues turning all bunch of light in the dash, the brake system light, the road departure mitigation system light, keyless remote not working properly had to press 2 times to turn on or off, battery will drain and not work properly. The keyless fob will not unlock the car, the back sliding doors would not open at all. My car left me 2 times and I had to call geico for road assistance. I took it to the closest dealer to get it checked they tought it was the battery so we had warranty on it and they replaced it. They tought the problem was fix but again all lights came back again. This happened 3 times in the nissan dealer. This past month and a half I have being dealing with my vehicle. So this weekend we decided to take it to the Honda dealer that's 1hr away from my home, with all the lights on again, scare that she would turn off on the highway. No turn light signals working, no hazard lights working either. Finally today I got an answer from the dealer they said that the cars tailgate left side factory seal, that's like a rubber its falling off little by little and it messed up the computer that's next to the back left panel of the driver side. They say that this is wear but I have heard of too many vehicles being damage on the same spot and it starts with the tailgate. They want to charge me $673.89 to replace the tailgate control unit and that if that didn't fix the problem that I had to rewired the vehicle again and that was going to be be $4790.78. I would love to see Honda to do a recall on this, this is something that has to do with factory issue,I don't think owners should pay for something wrong they are doing while building this mini vans. I have warranty on the vehicle and they are saying that would not cover the repair because its a water damage. This keeps happening to almost all the Honda mini vans. Pls do the search and you will see many people complaining about it. Thank you!

Rear tailgate will occasionally pop open while driving for no reason. Often times when parked rear tailgate latch will not open it. Takes several attempts to get it open, sometimes have to open another door to get it to work.

On January 2, 2024 I was driving down the interstate the whole dash board electrical system went out and quit working.After a period of time it came back on. Started down the interstate again went out a second time. Afraid to drive it anywhere. Taking it to Lees Summit Honda in Lees Summit MO for them to check it. Thank goodness it was day light. I was really scared and almost wrecked the vehicle. I had my mother and my two young boys in the car.I also looked to see if there were any recalls and there were none.

The rear power lift gage has stopped working due to leaking in the rear of the van. Per online threads, this is a common issue and should be a recall as so many issues have happened to other with this same problem.

rear tailgate seal failure 2019 honda odyssey allowing water intrusion and corrosion of lift gate control module, per ft lauderdale honda dealer. Not a safety issue but a design defect per other honda owners.

The contact owns a 2019 Honda Odyssey. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the automatic headlights warning light, the brake warning light, the adaptive cruise control warning light, the lane mitigation warning light, and collision mitigation warning light remained illuminated. The vehicle was taken to the dealer however, the cause of the failure could be determined. The contact stated that the technician reset the warning lights; however, the failure recurred. The contact concerned that while driving the vehicle a failure might occur regarding the safety of the vehicle. The manufacturer was notified of the failure and the contact was advised to take the vehicle back to the dealer. The failure mileage was approximately 149,000.