The vehicle body weather seal did not function water was leaked into the rear trunk of the vehicle, resulting in water damaged carpet/ foam and malfunctioning/ broken power liftgate control module for the rear hatch. The control module was found to be corroded resulting in a nonfunctional rear hatch.
2018 Honda Odyssey electrical complaints
Page 4 of 10: complaints 71 to 100 of 265, newest first, as owners wrote them.
Suddenly the Van gave me 5 different warnings as below. 1. Adaptive Cruise Control problem. 2. Lane Keep Asist Problem 3. Collision Mitigation System Problem 4. Road Departure Mitigation System Problem 5. Auto High-Beam Problem On top of these, 'Brake System' light also turned on.
the sensor/computer/camera on the windshield overheats and causes it to fail mines at 100,000 and its a $1600 repair dealer said because the windshield sits in sun while driving etc and the sensor overheats and melts the inside of the computer soldering. unacceptable so much for my safety features all gone i dont have the money to replace
Front camera failure causes multiple safety issues. Lane keep assist collision mitigation road departure mitigation high beam problem This is a known issue and the dealership knew about this immediately hearing the multiple warning signs. Cost of replacement is over $2000.
Crack in body seam above driver and passenger side of the tailgate AND underneath the roof rail cover caused water leakage. This resulted in a short of the power tailgate control module which draws down my battery and causes unexpected trunk closing during normal use. Family members have been hit in the head by the trunk due to the unexpected automatic emergency closing.
The power liftgate stopped working so the rear door won’t latch. We had to drive home with it closed but not latched and beeping the whole way. I believe water has leaked into the control unit from the roof. The error on the dashboard says Tail Gate: Power tailgate problem
Defect-Linked Electrical Failures and Refusal of Support – 2018 Honda Odyssey I am filing a formal complaint regarding Honda’s refusal to cover a known, dangerous defect in my 2018 Honda Odyssey (VIN: [XXX] ). My vehicle is experiencing electrical and system-wide malfunctions that directly match Technical Service Bulletin 21-013, yet I’ve been denied goodwill coverage, and I am being forced to pay out-of-pocket for diagnosis and repair. The problems include: •Ongoing, loud popping sounds from the speakers while driving and after shutdown •System power failures, with audio and Bluetooth activating before the key is turned •Low battery warnings without cause •Factory HondaVAC system failure, now showing “PWR SAVE” despite a running engine I am a parent of five children and rely on this vehicle for daily transportation. These failures not only distract and stress the driver but compromise safety, communication, and vehicle reliability. Honda’s decision to shift financial responsibility for a known defect to the customer feels unjust and exploitative especially as many others have reportedly received goodwill repairs for the same issue. I am asking for assistance in holding Honda accountable under Massachusetts consumer protection laws. This is not typical wear and tear it is a manufacturer defect with ongoing safety implications. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I have had four diagnostics on this vehicle and it's pointing to sensors which are inside the transmission transmission was not leaking and wasn't slipping or nothing I went to get in the vehicle after it was sitting for an hour and I put it in reverse it went right back in the park I put it in dry went right back in the park I couldn't get it out of the park and it was saying on the dash that stop driving one safe transmission problem emission system problems okay like a four diagnostics that are saying that it is sensors transmission pressure sensor A park neutral switch is bad power source failure steering angle low voltage sensor failure four different things I cannot get any help I hear a bunch of different stories some are saying the transmission not so we're saying it's not a transmission isn't slipping I drove it car was fine it won't go into drive I've been told and I researches so much that if it's happened on the road it could slam in the park the be able to roll they could crash it's a very bad safety issue there are recalls on 50,000 of this year of the Honda Odyssey I'm being told that my VIN number is not on the recall list I don't understand why not it's doing exactly what all the other 50,000 recalls are doing and I can't get help fixing mine
The automatic tail gate stopped working. When I went to replace the tailgate control module I found out that it was damaged due to water that leaked into the rear driver side cabin area. After doing some research to figure out the problem, I found that there where many others that have had the same problems on the same year, make and model as mine.
My tailgate stopped working, I was getting messages on my dash board that there was transmission system problems, reverse warning problems, keyless entry system problems. It always seemed to happen after a rain. I found that the van is leaking water through the driver’s side roof rack gully, near the back, and water is leaking right on the tailgate control system, causing all these other problems. It is also causing the battery to drain when car is parked idle. There should be recall to fix the leakage and replace the controller. It's a design defect, water shouldn't sip inside and burn the electrical components. Costing me hundreds/thousands. This is also safety issue because water damaged controllers causing issues with ADAS components too - getting check engine, break lights, etc. while the car is in motion. If those safety features are not working, that can be very dangerous. Thanks
The tailgate module has been fixed three times by Honda, along with the tailgate being resealed by honda, however, the car continues to leak water through a seal in the drivers side upper rarea. The electrical components and fuse boxes have been full of water causing the vehicle to turn on automatically, have every light illuminated, tailgate open on its own, tailgate won’t close, no turn signals, no power to infotainment center, infotainment permanently displaying back up camera while in drive mode. The tailgate has been resealed by Honda (balise Honda of West Warwick) in March of 2024 and vehicle will be back there this week due to same issue. Battery needed replaced due to all the electronics misfiring and automatically turning on- car has left my family, my children stranded multiple times due to electrical issues misfiring and depleting battery.
The car has stalling problems and low power problem (changed 3 batteries in 5 years), took to dealership first time and they could not confirmed what's wrong. The problem became worse and stalled a few times, took to local shop and code p2638 torque management feedback signal came back, indicating problem with transmission or TCU. Then, it was noted that there's a the federal safety agency RECALL NUMBER:19V‑299, specifically "Low voltage situations resulting from loose battery terminal connection(s) or a degraded battery could cause the Transmission Control Unit to reboot and shift the transmission to Park". The recall was on 2018-19 Honda Odyssey, however, my car's VIN is not included, therefore it is not covered. Contacted Honda corporate, they are saying since VIN is not part of the recall, it is not covered. The year, the model and the problem are exactly matches what's in the recall but Honda refuse to cover it or giving good will discount.
The power tailgate has a failure. I took my minivan to a local mechanic who said the motor has failed. I tried to see if I could do the repair myself and came across a number of forums and YouTube videos that detail this is a known, reoccurring issue.
Front facing camera malfunctioning, and it is available for inspection upon request. This malfunction causing 5 different warning lights to show up on dashboard. Including 1.) Auto high beam problem, Lane keeping assist problem, collision mitigation system problem, adaptive cruise control problem, road departure mitigation problem. The issue has been confirmed by the dealer. There were no warning lights prior to the random malfunction. I have not had wind shield replaced (which I have read could mean a calibration of the camera issue), nor has there been any accidents taken place. My safety is at risk as I am unable to use these features while driving unless the front camera is replaced.
Failure of the tailgate module and blind spot sensor simultaneously. Electrical issues previously fixed due to water infiltration and this seems to be a recurring issue.
Auto engine stop feature shuts off the vehicle when engaged. When the vehicle comes to a complete stop at a light or in heavy traffic, the auto engine stop feature will engage but the engine will not restart. The only way to restart the engine is to shutoff the vehicle, open and close the drivers door, then restart the car. This problem has been occurring for a few years. We have brought the vehicle to a dealer but they say nothing is wrong.
During rain and snow storms I will get warning lights that the power tailgate isn’t working. Last year when I took it into the dealer they said the tailgate would open and close randomly and there was water in the rear fuse box. I thought I fixed the issue by replacing all the wires from the rear all the way to the front. They fixed my tailgate and did water testing to make sure no water was coming in through the tailgate and all was great. Fast forward to this year and the middle of February we had an all day snow and rain storm and I start having these same warning lights along with a couple others. By the end of the day the tailgate completely stops working. I take it back to the shop that had originally fixed it and water is getting in. Not from the tailgate but through some unknown opening. The fuse board is completely corroded and we have to replace it again. They could not determine where the water is coming in from. I do not want to be driving down the road and have my tailgate randomly open and have items fall on the road causing injury to someone. Nor do I want to have to pay $1000 to fix the circuit board every time it rains or snows. I live in Utah it happens frequently.
Improper seal on exterior driver side roof near trunk lift gate. Allows water inside during heavy rain or when going through a car wash and the water damages the control module for the power tailgate. Damage to the control module cuts off any use of the tailgate, even manually. This is a $900+ repair due to a MANUFACTURER ERROR
The power tailgate opened by itself while I was driving on high way at around 60mph. Later it stopped working/won't open and the car battery died as well. Went to Honda dealership for a Diagnosis and found a water leakage on the roof of the back, causing the tailgate control module to be burned out by water damage.
The circuit board for the module that controls the power lift gate is damaged from water. Water seeps in the roof rail and wets the panel causing the the power tailgate to lock shut and unable to be opened.
Multiple warnings occurred simultaneously for the "brake system" intermittent. I have the same issue per [XXX] for my Honda Odyssey 2018 elite. I can see the same problem by a lot of people. I told Honda and paid them $220 diagnosis fees and they ended up asked me to change the whole camera that cost 4k. This obviously defect issue from Honda. Looks like known issue for this. Can this escalate back to Honda? For example [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Went to leave my house at 8pm and the car was malfunctioning. Blind spot problem, parking sensor problem, road departure mitigation system problem, auto engine idle stop problem . Lights flickering on and off, console lights not working, can’t control heating speed. Light would not stay on as I was driving . I have a couple videos of the malfunction.
My car has had all recommended service completed by the dealership since I purchased my Honda Odyssey in 2018. On 2/18/25, my power liftgate started malfunctioning. An error message beeps inside my car 4 times, every 4 seconds and cannot be manually turned off. I took the car to the dealership and was quoted $7500 to make the repair. My car only has 90,000 miles on it and has passed all of my previous service inspections. Supposedly, water is getting into the rear control module. I have never had water in my car so this is clearly a manufacturer's defect that is allowing water to seep into the rear control module.
The Tailgate Control Module (TCM) was infiltrated with water due to a crack in the seam on the rear driver side panel. This caused the tailgate to be unusable and no longer latch as a result of no power to the tailgate latch. The TCM (Part #: 74970-THR-A12) had to be replaced as well as all seams needed to be sealed.
Did not control Engine up and down fuel nt work.
The seam seals on the rear driver's quarter panel of the vehicle are faulty and allowed water to flow into the cabin of the vehicle. The resulting damage was loss of function to the rear power lift gate, front seats, remote start and other key fob functions, as well as a dead battery(assumedly due to arcing on wet circuitry). The damage rendered the lift gate inoperable as I it initially closed but came open during operation. We continued to receive a power lift gae problem on the "Heads Up Display" but the power gate would not open or close, electrically or manually. After a few days the gate opened but would not close, rendering the vehicle unsafe to operate. Furthermore, the battery was dead and would not start. Had this incicdent not occurred in our driveway we could have been susceptible to being stranded in sub-freezing temperatures with kids. The vehicle was taken to a dealer and they confirmed a roof leak was a cause of the water incursion. The power lift gate module and floor harness were damaged causing failures to lift gate operation and other electronics. It will cost $7000 to have it repaired at the local Honda dealer. Pending completion of repairs and paperwork for submission.
Tailgate warning beeps. Tailgare Will NOT open or Close. Dashboard lites flash. Vehicle will NOT START ! CANNOT START or move Vehicle!
Power tailgate malfunctions. Random errors showing on dashboard and randomly attempts to open on its own.
Infortainment center shuts down and loses connection. Which means there is no communication with the backup camera or navigation. Popping noises from the front speakers start static and pop then the screen states connection lost then goes black. Turns back on in about 5-10 minutes depending. Also the lighting for the buttons around the center are not working as well. Idk if this is related or is an overload that the system cannot keep up.
Unknown but many Honda Odyssey owners are reporting the same issue which most likely caused by defective multipurpose camera at the front windshield. This create alerts and deactivates safety features: adaptive cruise control, emergency braking, Lane keep assist, collision mitigation, auto-high beam, road departure mitigation, and Brake system.
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