general problems of the 2018 Honda Odyssey - part 1

The contact owns a 2018 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate, requiring the contact to forcefully depress the accelerator pedal to move the vehicle. The contact stated that multiple warning lights unexpectedly illuminated, including the road departure mitigation system, collision mitigation braking system, and lane departure warning system warning lights, and all related safety features failed to operate. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 105,000.

A warning for power tailgate problem keeps coming up. It tried to open multiple times while driving, beeping at us. It wouldn’t open with the buttons at all. We had to manually open and close it. This makes the second time it’s done it. And it always has to do when it rains. Honda knows this is a well known issue with their Odyssey’s and it needs recalled. The dealership wants us to pay for a well known issue. We had a friend with the same year Odyssey and the same thing happened but their tailgate completely opened a few times while driving.

Component that failed & availability: the vehicle's primary electrical architecture and data communications network (can bus) failed during a safety recall service for the srs ecu and rearview camera. After attempting to complete the recall work, the vehicle is no longer able to start. Safety risk: the manufacturer's federally mandated safety recall remedy compromised the vehicle's critical safety and control infrastructure. This rendered a previously reliable family vehicle entirely inoperable, destroying its ability to communicate, start, or turn on. It poses a systemic safety risk if the corporate recall procedure itself causes severe electronic failures in consumer vehicles. Reproduction & dealer confirmation: yes. The failure was induced directly by williams Honda ([xxx]) during service on Thursday, xxx. The dealership's service manager explicitly confirmed to me that their technicians compromised the electrical architecture while performing the srs ecu and rearview camera recall work. The vehicle has remained dead at their facility ever since. Inspection by others: the vehicle has been actively inspected by dealership technicians in coordination with Honda engineering headquarters. It has not been inspected by police or insurance representatives, as no crash occurred. I have requested an inspection by a Honda corporate field technical specialist (fts). Warning lamps & prior symptoms:none. Prior to this appointment, the vehicle was in perfect electrical and mechanical working order. There were absolutely no warning lamps, messages, or symptoms of any starting or electrical problems. The vehicle had just safely completed a seven-hour road trip immediately prior to being dropped off for the recall work. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Power tailgate stopped responding to all inputs (button, remote, driver switch), dash displayed a "liftgate power failure" message, manual latch still functions. Fuses are good, connectors looked clean, and the boot is intact, points to module failure.

Early in a driving session, the accelerator pedal, when applied pressure, will not rev the engine and provide power to the wheels for 1-3 seconds. This issue happens once or twice in a driving session and then doesn't do it again until a future driving session. It is random and doesn't happen every session. This issue causes me to have concerns entering traffic, particularly left turns, as I am unsure if the vehicle will accelerate when needed to safely enter traffic. I have had service bulletin 19-124 completed on my vehicle and it did not fix the issue.

The windshield-mounted front monocular camera (Honda sensing unit) overheated and failed/burnt out. This failure completely disabled the forward collision warning, automatic emergency braking, lane departure warning, lane keeping assist, and adaptive cruise control systems, triggering multiple safety system warning lights on the dashboard.

On 7/28/26, my 2018 Honda Odyssey began displaying the following warning lights and system messages on the dash: •adaptive cruise control (acc) system error •lane keeping assist system (lkas) error •auto high beam system error •collision mitigation braking system / forward collision error these errors were present before I replaced the 12v battery. I had the battery tested at that time and it failed a load test, so I replaced it, expecting the adas-related errors to resolve. After the battery replacement, the original errors remained, and additional warning lights appeared, including a transmission system problem indicator and a brake system warning light. I disconnected the negative battery terminal for approximately 10 minutes in an attempt to reset the modules, then reconnected it. After reconnection and a period of idling, further warning lights appeared that had not been present immediately after the battery swap. I have not been in a collision, and there was no impact to the windshield, front bumper, or brake components at any point during this period. The vehicle’s brake pedal feel has remained normal. Because these errors were present before the battery was replaced, the battery does not appear to be the root cause, and the underlying issue affecting the acc, lkas, auto high beam, and collision mitigation systems remains unresolved. I have seen reports from other Honda owners describing similar cascading adas and system warning lights on comparable Honda models.

Wife was going to the store engine lost power and died prior to that steering got loose like trying to turn itself, towed to dealer inspected dealer cleaned throttle returned vehicle after cost of 807. 00 and drove van to church tailgate would not open without vehicle running, got home turned off windshield washers operated brittle with key off, remote key system problem displayed also hill hold, brake failure and steering message on dash prior, dealer picked up van inspected again found defective seal sealer on passenger side leak in water on wiring harness pins and soaking power distribution box said that was causing issues and stalling driving and safety system issues, van is at dealer, also tailgate after you open with ding when open and will close by itself, safety issues will close while you or small child in at back closes from behind you.

2018 Honda Odyssey elite I am reporting an unresolved issue stemming from a failed recall remedy for NHTSA safety recall 23v-431 (Honda TSB 20-049) regarding the most bus fiber-optic network. My vehicle has been taken to an authorized Honda dealership twice to receive the official recall repair (replacing the fakra network connectors). Despite these two repair attempts, the network defect continues to escalate. The vehicle experiences sudden, violent, and near-constant loud popping and clicking noises through the audio speakers while driving. This occurs both at random and predictably when driving over bumps. Following the increase in these network pops, the vehicle's blu-ray player completely failed and stopped working. Furthermore, the central infotainment screen frequently freezes, reboots, and displays an "audio connection lost" error message, which also cuts out the fm radio tuner entirely. Crucially, this fiber-optic network failure recently caused a total loss of the digital instrument cluster and speedometer while driving. While this complete cluster blackout has only occurred one time so far, it presents an unpredictable and dangerous safety hazard, as I am left with no knowledge of my current speed or critical vehicle safety alerts while in motion. The manufacturer’s standard recall remedy of swapping plastic connector clips is ineffective for my vehicle. The recurring failures after two repairs indicate a permanently compromised factory wiring harness or a damaged network module that is continuously dropping the signal. The manufacturer needs to authorize a thorough diagnostic and full harness/module replacement to permanently resolve this safety defect before the instrument cluster fails again.

There are multiple systems that have failed in the vehicle: — lane keeping assist problem — collision mitigation system problem — auto high beam problem — adaptive cruise control system — road departure mitigation system problem here’s the issue, I’ve seen multiple people with this issue saying it’s related to the camera system. I’ve reported it multiple times and to the dealer and have not received a straight answer. This needs to be investigated. How many complaints do you need to receive about safety issues in a make/model to do something about it/.

Failure of the forward-looking multipurpose camera after a simple battery change. Many safety features are now inoperative including emergency braking, lane keeping assist, adaptive cruise control, among others. Ultimately, a routine maintenance item (battery replacement) is causing the failure of vehicle safety systems.

I own a 2018 Honda Odyssey ex-l (VIN [xxx]). The vehicle experienced a sudden loss of power and entered limp mode, with multiple safety and driver-assistance systems shutting down at once (adaptive cruise, braking assist, lane/road departure mitigation, eps, etc. ). A Honda dealer (allen Honda, college station, TX) retrieved dtc p0369 and documented that the front camshaft is worn and has thrust forward, contacting the camshaft position (cmp/tdc) sensor and damaging the thrust plate. The dealer is recommending an internal engine repair costing several thousand dollars. I am very concerned because Honda has already acknowledged serious engine defects in this same j35 v6 family under recall 23v751 (connecting rod bearing wear leading to engine damage and stall) for 2018–2019 Odyssey, yet my dealer states my VIN is “not part of the recall” and that this is a “separate issue. ” in practice, I am seeing a major internal engine failure that causes sudden derate and disables multiple safety systems, but I am being told there is no recall coverage or assistance simply because my individual VIN falls outside Honda’s current recall production range. I am requesting that NHTSA review this incident as a potential recall exclusion problem: owners with the same engine family and serious internal failures are being denied recall coverage on a technical VIN cutoff, even though the safety consequence—loss of power and shutdown of critical safety systems while driving—is similar to the failures already recognized under recall 23v751 and the ongoing engine defect investigation. I believe this situation may warrant expansion of existing recall coverage or a new recall campaign for currently excluded vins like mine, and reimbursement for owners who have already paid for these repairs. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

All warning lights began flashing after a srs recall fix at Honda of joliet, illinois. Dealer wanted to do a in depth vehicle scan for $279. I brought it to an independent care repair shop where they did the scan for $199. They found engine damage per attached report. My vehicle’s VIN was not included in the initial recall for the same problem for the same vehicle, year, and engine type. Contacted Honda customer service a more or less ‘good luck’ response.

Warning lights began flashing on dash. Brought van to repair shop and was told and show leakage of oil into cylinders with metal shavings visible. Also heard a ticking sound while idling for a few weeks. Van only has 145,000 miles on it and was regularly serviced.

For a couple of weeks we have been having issues with our 2018 Honda Odyssey's back right door. When you go to open it, something happens where it makes it shut after fully opening. Our resolution for the time was to just push on the door harder and it would continue to slide open. Today, on xxx I was going to put my [xxx] son in his carseat, which is located mid van right side. He snuck infront of me and was standing in the path of the sliding door, it did what it normally does, the same door did not detect his body and began shutting on him. As it was squeezing his shoulders I was pushing back on the sliding door with all my strength, and after a few seconds it opened back up. I'm not sure whether the sensor failed, or it can't detect past a certain height, but either way it was a very scary situation. This had just happened an hour ago, so I haven't reported it to any authorities or anything. I came home and googled how to make a manufacturer report and it lead me here. If I had not been standing behind my son, I believe the door would have continued shutting more, enough to sustain serious injuries if not more. My son physically was okay, aside from a red mark on his upper arm where the door was shutting on him, he did need at least 5 minutes of consoling after, which only happens when something truly hurt him. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2018 Honda Odyssey. The contact stated that while a customer on turo was driving the vehicle, the instrument panel warning lights flashed and the climate control system failed to function. The vehicle was restarted multiple times, but the instrument panel warning lights remained illuminated. The contact stated that while being driven, the vehicle was pulled over by law enforcement because the taillights failed completely. The vehicle was taken to the dealer, where it was diagnosed that the gauge control module had failed due to corrosion from water damage. Upon further inspection during the replacement, the dealer discovered additional failures within the body control module and the taillight wiring harness. Technicians determined that the electrical failures were caused by water leaking from the rear windshield into the tailgate area. The vehicle was repaired; however, the water leak source was not addressed or sealed. The manufacturer was notified of the failure. The failure mileage was 144,411.

Recall 23v-431 (Honda 23-046) was previously performed on my vehicle to address most communication network failures affecting the infotainment system and backup camera. Despite the recall being marked complete, I continued experiencing intermittent infotainment failures. Symptoms include “network connection lost” messages, complete loss of the center display, audio failure, apple carplay disconnects, system resets, and loss of the backup camera while reversing. The failures frequently occur while driving over bumps, during turns, and recently while backing into a parking space. Because the issue persisted, I sought a second opinion from another Honda dealer. During their inspection, they advised that required portions of recall 23-046 had not been completed by the original dealership that performed the recall. The service advisor informed me that system history had not been cleared, a factory cable reset had not been performed, and the audio unit had not been properly initialized. In a follow-up text message, the advisor described the situation as a “workmanship error” by the original dealership. The remaining recall procedures were completed, however the same symptoms returned immediately afterward. The center display, audio, apple carplay, and backup camera continue to intermittently fail. I have incurred diagnostic expenses and out-of-pocket repair costs attempting to resolve this issue. My concern is that the original recall repair may not have been properly completed and that the same safety-related symptoms addressed by recall 23v-431 continue to occur, including loss of backup camera functionality while reversing. I am submitting this complaint because I am concerned that the recall remedy was not properly performed and that the safety defect addressed by the recall may still be present.

While the vehicle is in motion, it is loudly beeping that there is a problem with the rear tailgate and that it is open when it is closed. This is due to manufacturing defect wherein water is getting into the tailgate control module and ruining the electronics. This is making the tailgate unusable as it will not open and just reads off the error message. This is a well documented issue all over the internet on these vans and Honda should recall the vehicles to fix this.

Vehicle driving at highway speeds and put itself into park while at speed without operator intervention. Vehicle became uncontrollable and an extreme hazard.

Driver side sliding door is can not open/ failed to open. Life gate door failed to operate.

The power tailgate control module failed. There was water intrusion and the module was corroded. I replaced the module and the power tailgate worked properly. About a month later we had some heavy rain and the problem came back. The dash displayed “power tailgate problem” and the tailgate would intermittently unlock on its own. I inspected the one month old power tailgate control module and noticed water and corrosion in the enclosure.

When accelerating from a stop position while pushing on the accelerator the vehicle will not move. Takes a couple seconds. Almost struck by oncoming car when attempting to turn left onto main road. Happens frequently. Next: left sliding passenger door doesn’t close all the way then opens back up. Takes several attempts before it decides to close or with my assistance. Third: rear cargo door shuts without me pushing the button. Alarm sounds and immediately shuts. Been hit in the head once while closing. I’ve seen complaints about this and Honda is apparently aware. Last; the car will inadvertently emergency brake when an oncoming vehicle approaches from the front. Very disturbing when traveling at any speed going into an instant stoppage.

Multiple times of driving the vehicle as I am trying to press the gas pedal while driving it acts like it is not working and suddenly it stutters and stalls. The car will shut off and put you into to neutral while you try and pull over to the side of the road without being hit. It happens randomly and without rhyme or reason. After it shuts off codes are thrown such as brake failure, emissions failure, hill assist failure, steering failure, and lane assist failure. The car will be really hard to restart and if eventually will and then everything will disappear and go back to normal. Codes leave and car drives fine until it messes up again. First time it happened was months ago from this report, and then it happened monthly, weekly and now almost daily but only when you try and drive. Very unsafe and there’s no reason cars should stall at high speeds going down interstates!.

Component: power liftgate control module (ptg module). Vehicle is available for inspection upon request. What happened: on approximately April 7, 2026, while driving in rain, a "power tailgate problem" warning appeared on the instrument cluster. Following that event, all powered liftgate operation became permanently inoperable — interior button, exterior button, and key fob all failed. Cause: an authorized Honda dealer confirmed in writing (service invoice, may 1, 2026): "power liftgate control unit has corrosion from water leak. " the water intrusion originates from defective factory polyurethane seam sealer on the rear drip rail — a known manufacturing defect on 2018-2019 Odysseys documented in Honda TSB mc-10152401. Safety risk: the same water intrusion that destroys the ptg module is documented to cause the liftgate to open unexpectedly while driving, posing a direct hazard to occupants and other motorists. Nhtsa is already investigating this issue across 2018-2022 Odysseys. Warning symptoms: "power tailgate problem" warning on instrument panel cluster appeared during rain exposure prior to full failure. Manufacturer response: american Honda motor CO. Declined to cover the repair under goodwill despite the dealer-confirmed defect, an active TSB, and an ongoing class action lawsuit (2018-2021 Odysseys) for this exact issue. Honda has not issued a recall. Estimated repair cost: $691 (module) plus body seam repair.

I have a 2018 Odyssey exl I been getting messages from right sliding door problem and during the drive after 12 or 13 miles was getting sign was saying stop the vehicle and door sign is keep flushing saying right sliding door problem.

I am reporting american Honda’s ongoing failure to safely remedy critical safety defects and recalls on my 2018 Honda Odyssey (purchased new), resulting in severe vehicle degradation and a life-threatening traffic hazard. The vehicle has been to an authorized dealer over 21 times. Safety recall negligence & powertain damage: at 95k miles, the vehicle displayed active check engine codes p0087 (low fuel pressure), p0420, and p0430. The dealer replaced injectors, but severe fuel issues persisted. The dealer utilized stall tactics, claiming they "could not duplicate" ongoing stalling/hesitation symptoms. When the official fuel pump recall was issued, the bulletin mandated priority service for vehicles actively displaying symptoms. My vehicle met these parameters. However, when I attempted to get the recall performed at 111k and 120k miles, the dealer denied service due to part shortages, instructing me to drive the vehicle until it "completely broke down. " because Honda failed to supply recall parts to a symptomatic vehicle, I was forced to drive it a defective car for an additional 46,000 miles. A replacement pump was installed at 166k miles, but the prolonged forced operation directly caused the high pressure pump to fail and raw fuel to melt both catalytic converters. The dealer issued a $6,000 repair estimate for damage engineered entirely by Honda's recall delays. Life-threatening tcm failure: one day after a related service visit, the transmission control module suffered a catastrophic electrical failure. The engine completely shut off without warning while I was actively facing four lanes of oncoming traffic, creating an immediate, severe collision risk. Broken sliding doors: the power sliding doors failed under 12 months of ownership. Despite 7+ repair attempts, they remain broken, posing a severe structural/occupant safety hazard. Requests for trade-in intervention since 60k miles were systematically ignored.

Rear sliding door failure, doors wouldn't latch properly resulting in opening when driving down the road. Took to dealership for repair. Paid $1633. 78 they replaced rear latches 3/31/2026. Rear latches failed to open resulting in one rear door cable breaking and one that will not open at all 9/1/2026. Neither door opens at this point.

Power tailgate failure/dead battery from body leak. Currently power tailgate is not functioning.

Tailgate door is not functioning. Tailgate problem message on dash. Cannot open door with remote nor manually.

Rear hatch power door issue indicated on dash display, and complete failure of powered door feature. Investigation finds many other drivers of this make/model/year have issues with faulty seals allowing water intrusion into circuitry in left rear panel where the power lift fat control unit box is, causing damage to the circuitry. Other drivers have described more widespread electrical issues, some even causing the gate to unlatch while the vehicle is in motion. Upon inspection of my personal vehicle, signs of water damage were found both in the base of the area covered by the panel and within the circuit box and panel itself, confirming these suspicions.

2018 Honda Odyssey rear tailgate problems, what was the issue? problem is because water is leaking from the roof rails onto the tailgate module, causing the power liftgate control unit to short circuit, leading to unintended opening/closing or complete failure. I checked every fuse and my tail gate still wont open! tailgate module failed due to leak on the roof rail. The "holes" are three very small spots that the weld didn't cover. . . . . . .

Upon further investigation, lots of 2018 Honda Odysseys are experiencing the same problem I am. There is a leak coming in from the top of the van in the rear that causes water to leak through and overtime damages the control unit in the back. Damage to this causes my power lift gate to completely stop working, my passenger drive door to stop working, and a bunch of features like the front collision warning, the lane departure, sensors, fog lights, so on to fail and go on and off. I had problems here and there with it but it wasn’t until it rained 4 days straight that I made the connection with the leak and started trying to figure out the problem. I took it to the Honda dealership to get diagnosed and they confirmed this problem. We have not been in any accidents to cause body damage to the vehicle.

The vehicle previously received a manufacturer dash wiring recall repair. After the recall repair was completed, the vehicle began experiencing intermittent and cascading electrical and communication failures across multiple integrated systems. Affected systems include apple carplay, the dvd system, in-vehicle camera systems, cabinwatch, and repeated “most network unavailable” error messages. These failures occur intermittently and result in multiple systems disabling simultaneously. The vehicle was inspected by a Honda dealership, which confirmed the issue involves wiring within the dash harness. The dealership stated the affected wiring is not sold or serviceable separately and that correction would require replacement of the entire dash harness, but that this portion of the harness is not included in the original recall coverage. Because these systems share common power and communication pathways, failures cascade across multiple modules. When the camera system fails, rear view camera functionality and related warnings are unavailable while backing up, reducing the driver’s ability to detect obstacles, pedestrians, or children behind the vehicle. When cabinwatch is unavailable, the driver is unable to visually monitor children seated in the rear rows while driving, which affects situational awareness and the ability to respond quickly to unsafe conditions inside the vehicle. These failures also impact driver information systems and create intermittent loss of critical visual feedback, increasing driver distraction as systems drop out unexpectedly while the vehicle is in operation. The condition began after the recall repair and appears to be related to or a continuation of the original recall defect. The vehicle remains available for inspection, and the condition has been confirmed by a manufacturer-authorized dealer.

Defective body seam on roof panel over drivers side rear wheel - resulting water leak on control panel for power liftgate caused the rear tailgate to continually open and close while driving. The vehicle was parked and the fuses controlling the tailgate were removed to enable the closure of the hatch and allow vehicle operation. Prior to this, the vehicle battery died while parked due to the continuous tailgate operation and required a battery jump. The vehicle was taken to d&j auto (an independent service center) where a previous liftgate control panel was replaced for failure to open the tailgate. A search of the internet on 2018 Honda odyessey liftgate problems revealed multiple instances of water leaks on the liftgate control panels due to body seam issues which caused liftgate failures. This information was relayed to the auto repair shop where the leak was discovered. The vehicle was taken to a body repair shop across the street where the seam was fixed, returned to the auto repair shop where a third tailgate control panel installed.

Vehicle experiences engine stalling and failure to restart at intersections when the auto idle stop (ais) feature is engaged. This creates an immediate life-safety hazard as the vehicle becomes non-functional in live traffic. This has occurred 2 times. Once on surface streets and once on the highway in stop-and-go traffic. This issue persists despite service bulletins 23-008 and 23-009. Honda corporate and Honda dealership refusing to cover the repair. Separately, during a 37-day repair attempt (Jan 22 – March 2, 2026), autonation Honda chandler admitted the vehicle was sold with an 'incorrect' battery type (lead acid instead of required agm), which caused electrical instability. The dealership attempted a repair on Feb 13, but the vehicle failed to start again on Feb 11 during a pickup attempt. The dealer has since refused to provide accurate service records or further communication. The vehicle remains unsafe to drive as it continues to stall randomly.