general problems of the 2020 Honda Odyssey - part 2

1) infotainment system crackles, pops, and shuts off frequently. Will not come on sometimes until 5 minutes into the drive, meaning we cannot use our rearview backup camera. This was recalled in other models but not our specific VIN. 2) “shutter grill problem; power reduced” comes on randomly even when just idling. 3) sliding doors will bounce shut or not open all of a sudden! both doors affected similarly. Turning off the power doors does not solve the issue, so we lose access to one side. There was a recall on sliding doors for other models but not our VIN. We are taking it into the dealer to investigate but this is a safety issue.

Recently, my 2020 Honda Odyssey required a new battery replacement. Shortly after the battery was replaced, the front camera system failed unexpectedly. This failure has caused a complete loss of all safety features dependent on the front camera, including but not limited lane keep assist system (lkas) collision mitigation braking system (cmbs) adaptive cruise control (acc) road departure mitigation system (rdm) a diagnostic assessment revealed that the front camera system needs replacement with an estimated cost of $1,200. This issue arose without any previous physical damage to the camera or windshield and appears to be electronic or firmware related. According to Honda, this happens frequently when a battery is replaced. Context of vehicle history: this vehicle has already been subject to 11+ recalls, which have affected various major systems and components. The accumulation of defects and the continuing need for critical system repairs is deeply concerning, particularly for a relatively recent model known for its family-oriented safety features. Owner’s statement: given the number of recalls and now a costly camera system failure that directly affects key safety functions, I find this situation unacceptable for a vehicle of this age and mileage (72,000). The loss of these features significantly compromises driver and passenger safety. I believe this issue may be part of a broader reliability concern and request that Honda (or the responsible service entity) address this matter urgently and consider full or partial financial assistance for the repair.

I am filing this complaint regarding a serious safety defect that persists in my Honda vehicle following Honda's pgm-fi idle stop software update. Recently, I experienced a dangerous incident on [xxx] outside washington, DC. My vehicle completely stalled in heavy traffic, leaving me unable to start my car on the highway. The vehicle would not restart for approximately one minute, creating a significant safety hazard as traffic moved around me. Of particular concern was that during this incident it is not clear whether or not the airbag system would deploy since the car was off. This is a major safety issue and, reviewing complaints online, I am not the only customer to experience this, despite having received the software update. This is not an isolated incident. The vehicle's auto start-stop feature continues to malfunction, repeatedly shutting down when it goes into idle. This issue is also causing significant battery drain, making the vehicle increasingly unreliable and unsafe to operate. Worse, Honda indicates that this feature can act up when the battery is low, but the feature itself drains the battery. You can turn the feature off every time you get in the car, but this is not a fix. I have been informed by Honda there is no way to permanently disable the feature. I strongly urge NHTSA to investigate this matter. The current recall repair has proven insufficient to resolve the safety defect, and the malfunction creates unacceptable risks for me and my family. This issue requires immediate attention to prevent potential accidents and ensure the safety of all road users. Please require Honda to implement a repair that allows consumers to permanently disable this feature. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The idle start stop feature constantly doesn’t work. When stopped at a light or stop sign the engine will turn off and when I release the break it is supposed to reengage the engine. Instead it stalls out causing me to have to put the car in park and restart the car. There have been several incidents where this is during rush hour traffic causing traffic jams. Sometimes I have to wait a few minutes before it will actually turn over. The car is 5 years old and I have had the replace the battery twice and I have been told that this feature puts a lot of pressure on the battery. Never can the dealership recreate the issue.

Regarding my 2020 Honda Odyssey vehicle, there is a manufacturing defect which allows water to infiltrate the rear driver’s side body panel, where it comes into contact with the control unit for the rear power tailgate (a/k/a power liftgate). Once water infiltrates the control unit, it causes the power tailgate to malfunction. Many consumers have reported that the malfunctions include the tailgate opening and closing without notice and while operating the vehicle, the tailgate failing to open, and the tailgate failing to close. With the control module getting wet and becoming oxidize/faulty that also makes the battery work harder which causes the car not to start, etc. . Consumers are then forced to pay out of pocket for expensive repairs only to have the replacement control unit also prone to future failures caused by further water infiltration. Honda of tenafly is saying this is not a recall and not covered. [xxx] [xxx] [xxx] [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The current 2018-2019 Honda Odyssey recall also is applicable to 2020 models. The infotainment system frequently is popping or crackling from the speakers or no sound from the audio system, display issues, and shuts off completely.

I have had 3 power tailgate modules fail due to water leaks in the rear panel or window of the vehicle. I have had 2 leaks repaired and two modules replaced within a 6 month period (June '24 and December '24). 6 weeks later (Feb 14, 2024) have had the 3 module fail due to water intrusion following a heavy rain.

After driving for about a minute, there is a beep and the brake system warning light comes on. Then the dash begins cycling through multiple warning messages - lkas/acc/cmbs/rdm - and will not stop. Now the repair shop tells us that the front multipurpose camera adas needs to be removed and replaced, and the adas calibrated. Including the fee to diagnose the issue, total cost is $2,980. Van has about 56,500 miles. We have already had it towed twice for battery replacement following similar symptoms, and had battery replaced both times. But with the new battery only 3 months old, it became clear the issue was bigger.

It happened twice this month already. Once while driving, the car lost power (as if engine was never turned on), and the gear changed to n so I tried to slow down, then the power came back on, and then I was able to shift to d and continue my trip. Second one happened this morning. It was on auto-shutting idle position and when I put my foot on the accelerator, it completely lost power again (I recently changed the battery and tested in the afternoon and all working properly).

Infotainment system - while driving suddenly there is a cracking/ shrieking startling noise and infotainment system goes off shutting down ( network communication lost sign comes on) and the screen goes blank. No camera works. Radio and all electronic display goes off for a couple of minutes. Slowly, it begins to come back to life by itself in a couple of minutes. This happens randomly on and off. In last 4 weeks, it happened at least 15 times while driving. Honda dealership has my car for three days without a diagnosis or correction.

The windshield camera went out. I am now unable to use cruise control auto lights auto breaking.

I have less than 35k miles on my car and I have 5 warning that appeared out of no where. My car has never been in an accident and I take care of it. I searched on youtube and apparently this is very common issue. It cost $3500 to fix and needs to be with a dealer. The 5 warnings are issue with car 1) lane keep problem assist, 2)auto-high beam problem, 3) road departure mitigation system, 4)adaptive cruise control, 5) collision mitigation system, the car is 4 years old and should not have this problem but a lot of people who own the same exact model have tge same issue. Honda needs to do a recall and fix it for free.

Sliding doors will not close! they go to close and open up, I have woken up to my car doors open, several times. Come out of the store and my sliding door open, they go to shut completely and open back up.

Right sliding door fails to fully open and fully close when entering or while driving , it's available for inspection, high safety concern while driving door may open 4 kids ride everyday. The problem shows everyday on the info center and bips showing malfunctioning , will showw 100% on the computer reading ,has not being inspected by dealer service department yet, I have reported safety issue and descrived and officially reported to Honda customer service [xxx] case #[xxx] (laura) on oct-21-2024. Yes warning lamps and messages of the problem showed few times at first and now it shows constantly ,sliding door can not be operated. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The navigation/ radio / rear view camera just resets multiple times while driving, sometimes it happens more frequently than other days. Message that comes up network communication lost. Researched online and tried to resolve via software update but seems to made it worse. Reluctant to take to the dealer as warranty has expired and more importantly, blogs show that the issues have never been resolved even after dealer. Wiring harness replacement didn’t resolve.

My guage control went black (it's the screen behind my steering wheel that tells me how many miles the car as, the odometer and speedometer (now don't know my speed!) and has maintenance info that is missing from my view now too! this is a serious safety issue! it also activates cruise control. They want to charge me $2k to replace it. The car is a 2020 with about 32k miles on it! and charged me a $180 diagnostic fee. Incidentally, the radio screen went black a few days later, but when I pressed the brightness button, it came back on. Btw, there is a little stick in front of the screen (maybe for the clock?) and it just spins and spins. Maybe that is simply broken and the brightness is turned down all the way? though they stated the guage control needs to be replaced entirely. There is not a safety recall on this presently for my VIN and no software updates.

The front camera has failed for apparently no reason at all. There has been no crash, no damage on our end. We turned the car on and all of the safety warnings came on. The dealership has inspected it and said the code is for the camera failing. Many warning lights appear on the dash due to none of the safety features working without the front camera. This has caused all of the adaptive safety features to fail. There have been no recalls yet, despite the recalls for the rear camera, and many other Odyssey owners having the same issue with the front camera. We have reported it to Honda and were told that it has been reported by others, but not enough times to issue a recall. It is expensive to fix and poses a serious danger to leave due to none of the safety features working. This is a manufacturing defect that Honda is not taking seriously.

Unknown. Auto engine idle stop was enabled when the vehicle was at a complete stop. Upon disengaging, the engine stalled and took a couple minutes to restart the vehicle. The vehicle was located in a highway that caused traffic delay and safety concerns. This has happened more than once.

My 2020 Honda Odyssey is exhibiting problems with the infotainment system. The system will reboot randomly, disabling all functionality of the rear back-up camera, the audio system, the clock, and all other associated features of the "infotainment" system. The screen will display "network connection lost" and "most net off" prior to unprompted reboot. System will reboot continuously following failure. Issue is ongoing for the past few months. This issue is the exact issue covered by the NHTSA campaign number: 20v439000. Possibly covered under 20v440000. Other 2020 Honda Odyssey vehicles are covered by this recall, however my VIN was not covered. I called Honda, and was not assisted in the slightest with the issue. I am requesting my VIN be added to the recall list, and/or Honda be penalized for improperly identifying vehicles with the affected issue. As it can prevent the rearview camera image from displaying, this vehicle fail to comply with the requirements of federal motor vehicle safety standard (fmvss) numbers 101, "control and displays" and 111, "rearview mirrors. ".

This model has had a recall of the wire being to short and having faulty connections. I have replaced the wires module now 5 times . The last time it got replaced after a couple of months the screen on the car has gone blank and now they tell me the whole computer needs to be replaced. No lcd and no backup screen . This is absolutely ridiculous . Anything that can be done this car seems to be a electrical disaster.

The infotainment system started blanking out and restarting while driving. This issue has started about 1 year ago to this date. It has occured on multiple occassions, we have brought it to Honda to get it repaired under warranty but they refused. The refusal was due to the fact that they could not "duplicate" the issue regardless of having video proof of the issue. The second issue is the multipurpose camera malfuncition. My vehicle is no longer under warranty and now I have to shell out $800 usd to fix this issue. All the lights have popped up on the dash. Both issue have not been adressed by Honda, they refuse to fix the issue with countless other electrical problems that this van has aquired over the short lifespan of this vehicle.

I just started up the car one morning and had multiple sensor warnings. Brought it to the Honda dealership and told it was an internal sensor camera malfunction and wanted $2000+ to fix it. This honestly should be a recall as I’ve had several other Honda owners complaining about the same thing which is a huge safety concern.

Drove to grocery store, did not have any codes, when I got back in my car and restarted I received these 5 errors: adaptive cruise control auto high beam problem lane keeping assist problem collision mitigation system problem road departure mitigation system problem.

The multicamera display unit is defective. It operates several systems and cause multiple warning issues. I believe the design is flawed. In addition to the warnings, both the display for driving information ( speed, rpm, temp, etc. ) go blank and the av unit (radio, entertainment, etc) shuts off too.

When I bought the van used in 2023 at a dealership, they were working on the tailgate of the van. They stated it was a factory default that the module had. They did not go into further detail. I started getting a message on the dash panel that the power tailgate system had a problem. I also got messages stating the thee reverse collision system stopped working, transmission system had problems, the keyless starting system problems. This was happening after a rain occurance. I took it to the Honda dealer, they did not know how to fix this. I took it to my mechanic and he found water is getting thru the roof rack rail gulley, leaking down the back drivers side interior panel on to the tailgate control module. I have to take the van to a body shop, so they can fix the affected area. I have the part my mechanic replaced. It is clearly water damaged. The day he fixed my van, it had rained and malfunctioned again. Right now I have the module hanging in the cargo area, outside of the interior panel, so it does not get wet when it rains.

I was stopped at a light at a busy intersection and when I went to drive when the light turned green, my van did nothing. It had turned off the engine when I stopped at the intersection. I tried to switch gears and it wouldn’t change. I was kind of panicking because I was holding up a ton of traffic and my toddler was in the backseat so I can’t remember exactly what was happening on my dash. I would turn the car on and off but I could not get it back into drive as the engine would not restart, but all of the electronics were still working. Finally someone offered to jump the car with one of those portable battery jumpers and that worked. I drove straight to autozone to see if it was something their machines would pick up on but they couldn’t find anything wrong. The dealer also couldn’t find anything wrong. I believe this is related to the auto idle stop feature.

On multiple occasions, after stopping the vehicle (for example at a red light), the engine would stop and not restart. After several minutes of frantically trying to restart the vehicle in dangerous situations (stopped in the middle of traffic and nearly rear ended multiple times), the vehicle would eventually start the engine. Bottom line - when stopping at a stop sign or red light, the vehicle turns off the engine and does not restart properly - placing all occupants in a dangerous situation.

Started the vehicle on 7/3. Multiple warning lights show on my dashboard: 1. Acc problem 2. Collision mitigation problem 3. Lka problem 4. Auto high beam problem I took it to purrfect auto (as I had just had work done). They claim it is a software issue (per Honda) and did a reset of the dashboard (I was not charged for this). Problem was fixed. Later that day when I started the car, the warning lights came back. About 4 out of 5 times I start the car, the warning lights return. I had a long road trip (8-hours) a week later. So when I started the car and the warning lights came back, I would turn off the car and open and close the door (to turn off the computer). After I turned off and on the car 3 or 4 more times, the warning lights weren't on, so we started our road trip. This is a safety issue because I am now used to 4 years of lane keeping assistance and collision mitigation. For the first time in 4 years, I experienced *3* near collisions with other vehicles due to the failure of these systems. This issue was inspected by the mechanics at purrfect auto. There were no other warning lamps, messages, or other symptoms of the problem prior to this failure.

Front camera failure resulted in failure of adaptive cruise control automatic emergency braking blind spot warning forward collision warning lane departure warning lane keeping assistance parking collision warning rear cross traffic warning.

The rear lift gate fails to hold in the up position, the powered lift gate subsequently and randomly closes on its own without any driver intervention. The powered lift gate closed on me while I was retrieving groceries, almost crushing me had I not forced it back up by force. This has happened multiple times and could be lethal to a child or even an adult. The vehicle only has 39,xxx miles and has been used lightly as a family vehicle. The vehicle is available for inspection by NHTSA officials. Additionally, I have seen other vehicles with the same problem video taped on youtube. Such links can be provided to investigators. Honda should recall these vehicles and disable the automatic closing of the lift gate that is occurring without any driver intervention. It is beyond reasonable to assume this fault can be lethal or cause serious bodily injury.

The contact owns a 2020 Honda Odyssey. The contact stated that, upon starting the vehicle, the instrument panel failed to display any information and the rear-view camera failed to display an image. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the gauge control unit. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 20v439000 (back over prevention, electrical system), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was unknown.

Auto idle stop. When the auto idle stop is on, when the vehicle is stopped at a light or due to traffic the vehicle while in drive will completely turn off. Unable to hit the accelerator to move as designed. We have to restart the vehicle and sometimes it takes multiple restarts. Extremely unsafe since we are unable to keep up with traffic. It has happened multiple times without warning. We have to make sure make a point to keep the auto idle engine turned off, but when you turn the car on it is automatically turned on. Called Honda, no recalls on this issue.

After any kind of weather event that produces water (rain, morning dew, snow melt), the car battery is dead the next morning. It jump starts the following day and will be drive normal until it sits overnight and the dew settles back in. There has been evidence of water leakage from the rear cargo door and the power door does not function. The only way to open the door is by removing the plastic cover and utilizing the mechanical lever on the inside of the door. The problem is a daily occurrence with dew and other water events. We have not gone to any automated carwashes, strictly handwash the car. No warning lights have been produced.

Auto idle stop (ais) system. Had many of the other same symptoms that people reported. Our car would go into idle mode and then it would not restart. I would have to turn the car off I tried to do various things just to get it started again. This happened one time was the exited the highway and also happened coming out of a car wash location. I took it to Honda and they said because of the idle stop functionality the starter went bad and they had to replace that. I was compensated some money from Honda but I believe I was only done so because they knew something was wrong and I really believe there should be a recall for this. It is completely unsafe and very scary when it happens especially in the middle of traffic. Our starter was replaced because of this issue on November 5th 2024, but the symptoms had been going on for that whole calendar year prior.

We bought a used 2020 Honda Odyssey, and a few months after buying this vehicle, the infotainment screen blanked out and the vehicle information screen also blinked out. This occurred at the same time with no warning whatsoever. I just turned on the car, and none of the screens came on. These screens are the ones that show the mph, our mileage, cruise control, etc, and also the screen that shows the back up camera, in car calling, back up alert system. None of that works anymore. We made an appointment to take it to a Honda dealership and a few days later it flickered back on and so we did not keep the appointment. Just a month and a half later, it happened again and this time it has not come back on for over a month. We took it to the dealership and were charged $200 for them to tell us it was something wrong with the Honda computer system and the whole thing would need replaced and we would be charged $1800. This is on a barely 4-year-old vehicle & we did not have the money to replace a defective system. So we have been driving without a mph display. We put our phones up on the dashboard and try a gps mph app, but it is wildly inaccurate, and it is a major safety concern because we have no idea what speed we’re going and we have to guess. This is a car with low mileage and barely 4 years old!! we paid a lot of money for the back up camera, in car calling, and extra features like that specifically for the safety of those features. And now we’re being told that basically they can’t find the problem and we have to pay $1800 for those rather high-priority safety features like knowing how fast you’re going. I also have a newly licensed teenage driver and another who will get her temps in 2 months. I can’t even let them drive our vehicle because they certainly don’t have the experience necessary to drive with no speedometer. We live in a state that doesn’t allow handling a phone in any way. This vehicle helped me comply with that & now I must use a phone to show my mph.