9 speed transmission issue: Ever since I purchased this vehicle around 50,000 miles in February of 2021 (mileage currently at 118,048), I noticed a very obvious delay in acceleration from a complete stop. Changing to eco drive mode and sport mode changes slightly, but still has delay. Transmission fluid has been changed 3 times since owning this vehicle and everytime it has, there was no noticeable changes in symptoms. Delayed acceleration occurs more consistently at normal operating temperatures. Brought vehicle to honda dealership after purchasing. They performed a TCM software update. Problem still occurs to this day. Multiple occasions occured where me and my girlfriend are driving and attempting to make a safe left turn only to proceed, but in process of attempt, the vehicle delays while facing oncoming traffic.

- Hayward, CA, USA

My 2018 Honda Odyssey experienced a heavy snowfall in January 2025. The control panel displayed an alarm, Power Tailgate Problem, and the trunk door could not be opened. I asked a professional who pointed out that it is usually due to water intrusion into the control unit located on the rear driver's side body panel, which causes the tailgate to fail to open, close normally, or even open accidentally. They believe that this is a manufacturing defect caused by the manufacturer and there is a safety hazard. For safety reasons, I went to the dealer for an inspection. They said they could not find the cause but that the control panel was broken and needed to be replaced. I had to spend a lot of money to replace it. But I still think that the problem was caused by the manufacturer itself.

- Belleville, NJ, USA

In several occasions there is a delay in acceleration. This typically is happening when I take off from a stop sign and turning, others I have literally been on highway merging and loss all acceleration Al though I can hear rpm ramp up, there is no action till 10-15 seconds later. I am very lucky no was injured in that instance and could have been a terrible accident going 70+. I see this is an ongoing issue, and because it is not consistent in manner people fail to repair/research issue.

- Van Alstyne , TX, USA

I just had several recalls completed on my van. The issue that they couldn-??t fix (which I have seen on so many message boards) my car stalls when starting from a stop. If I-??m at a stop sign and press the gas nothing happens for 2-3 seconds and then it will catch and take off throwing everything in the car and the people forward. It is terrifying! I-??ve had it happen with cars approaching and just been a sitting duck, thank the Lord it engaged in time. This seems to be a very prevalent issue and I don-??t understand why a recall hasn-??t been done before someone dies. My trunk also doesn-??t work automatically anymore and they said I had a leak that would be $300 to diagnose and $500 to fix. I know ther are lawsuits for both of these issues. Recalls need to be issued.

- Wetumpka, AL, USA

Issue-1 High pressure fuel pump in the engine bay (no the fuel pump that was recalled for some VINs) failed at 88000 miles. There was a loud motorcycle exhaust kind of sound coming from the engine bay, which is more audible from inside the cabin than from the engine bay itself. Took it to service center for a 1500$ replacement. Wrote to Honda customer care, but they rejected by claim and goodwill refund saying there is not recall for this item. It is example of poor quality of Honda these days especially with this 2018 Nine speed model. Issue-2 MAJOR SAFETY ISSUE. The vehicle doesn't accelerate while moving from a complete stop or turning into a busy intersection, making us prone to big Collison from oncoming traffic. The vehicle lags for 3-5 seconds before it accelerate rapidly. This is an ongoing issue with this model which Honda ignores and is a disaster waiting to happen. NHTSA should look into this and recall all HONDA 2018 9 SPEEED ODYSSEYS to fix this issue. It is been 6 years and Honda comfortably ignoring this safety hazard especially for a vehicle meant for kids.

- Chino, CA, USA

At approximately 70,000 miles, vehicle transmission failed after intermittently falling to go into reverse and transmission warning system shifting vehicle down while driving. Rebuild parts not available from manufacturer, replaced transmission with used part. Immediately after putting car back into service, engine began to knock severely. Dealer recommended full engine replacement. Car currently not drivable and has been parked for past 13 months.

- Colleyville, TX, USA

The contact owns a 2018 Honda Odyssey. The contact stated while stopped, the accelerator pedal was depressed; however, the vehicle hesitated while accelerating. On another occasion, the contact stated that while his wife was driving, the message "Stop Driving when Safe - Transmission Failure - See Owner-??s Manual" was displayed. The contact stated that his wife pulled over to the shoulder of the road and parked the vehicle, and the vehicle became difficult to shift out of park. In addition, the contact stated that the RPM occasionally fluctuated and there was a delay with the vehicle responding. The contact also stated that the transmission was shifting hard. The vehicle was taken to a local dealer where it was diagnosed with an internal cylinder failure and that the 9-speed manual transmission needed to be replaced. The vehicle was not repaired. The vehicle was taken back to the same local dealer several times; however, no failures were diagnosed. The manufacturer was made aware of the failure by the local dealer to assist with the cost of the repair. The failure mileage was approximately 36,000.

- Madison, AL, USA

When trying to accelerate from a stop either in an intersection or from a driveway the vehicle takes a long moment before it responds... leaving my family vulnerable to cars coming from the opposite direction. I think it's the transmission but it could have to do with the fuel intake... it has been ongoing for months and months. The dealer has attempted to rectify but to not avail....very dangerous

- North Hills, CA, USA

UNKNOWN At random times I will push the gas pedal and the car does not engage at all to move. I will lift my foot up and down trying to engage the engine and it won-??t. After a few times it will catch and the car takes off making the tires squeal, spin or jerk. It happens at random times, no warnings whatsoever that there-??s a problem. It is very dangerous at intersections when turning left on green lights, when pulling out of parking lots. It-??s to the point I am afraid to drive it at busy traffic times because it happens so often and I-??m afraid of getting hit while my car will not move. We have told the dealership and they suggested we wait for the fuel pump recall to be readily available. I looked in forums and this seems to be a major problem for many other owners of the 2018 or newer. It started approximately two years ago and continues to happen, in fact happening more often.

- Navarre , FL, USA

Transmission hesitation when turning from stop. Scary when traffic is coming. Not safe and seems to be a common, known issue. https://www.odyclub.com/threads/2018-odyssey-having-1-3-second-acceleration-lag-from-stopped-or-rolling-on-9-speed-transmission.368250/ https://www.reddit.com/r/HondaOdyssey/comments/pxw7xz/2018_honda_odyssey_having_major_acceleration/ https://www.odyclub.com/threads/hesitation-on-acceleration.362860/

- Winnabow , NC, USA

The contact owns a 2018 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly shifted to park(P), and the vehicle shut off while approaching a traffic light. The contact was able to restart the vehicle; however, the failure recurred while driving and exiting a parking lot. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the engine needed to be replaced. The mechanic related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,000.

- Williamson, NY, USA

We started hearing a metal knocking type noise on start-up and acceleration. We took it to a mechanic who diagnosed it as a rod-bearing problem. Then we took it to the Honda dealership thinking it was related to recall 23V751000 which also deals with 2018 Honda Odysseys, but for some reason our VIN was not included in that recall even though our problem sounds exactly like what is mentioned in the recall. The dealership said we are 6 months out of warranty and would therefore need a new engine. I used one costs $9,000 and a new one would be $22,000.

- United States, TX, USA

See attached document for complaint.

- White Oak, TX, USA

Forward collision warning comes up on vehicle. There is a problem with the transmission. the car automatically shifts itself from D to S.

- Picayune, MS, USA

The vehicle often hesitates to accelerate when pressing the fuel peddle. This mostly happens when backing out of a driveway and placing the gear into drive but also has happened after coming to a full stop and then pulling out. The hesitation lasts about 1-3 seconds and could lead to a collision if I decide to pull out in front of oncoming traffic and anticipate the car to accelerate rather fast. Often, during the hesitation the instinct is to press the gas pedal harder, in which case, when the vehicle does accelerate it will spin the tires, making forward progress even more frustration and dangerous. This happens with both drivers in the family, it is not isolated to just once person's style of driving. This becomes a safety issue if you expect to merge into traffic and the vehicle does not respond. we have adjusted our driving habits in this car to assume it will not accelerate when from a full stop. We have not had a shop verify the condition. No warning lights or messages appear. The car is NOT in ECO mode. Doing a google search for the condition, it does not appear to isolated event.

- Union, KY, USA

I bought new and have 59,000 miles on the car. During the past year or two, when I get to a stop sign and about to cross or turn into a busy road (that has no traffic signs for the cars traveling on that road), the car hesitates when I step on the gas pedal, then after a second or two, the car lurches forward (abruptly) while screeching the tires. My analysis is that there is something about making several complete stops in short succession (as a driver would do in an attempt to inch into a busy intersection of fast moving traffic in order to get a better view and position the car for a smoother merge) which triggers the car to stall for a second or two. I say this because it does not happen at any other types of intersections. The danger here is that a second or two is crucial in avoiding a crash when you are trying to merge into a gap in traffic. Then after hesitation, the car lunging forward in an uncontrolled manner can cause an inexperienced driver to loose control of the vehicle during a turn. There are many similar complaints filed with NHTSA and posted on online owner forums. Many owners have reported to Honda, but Honda-??s response is that this is how the car is supposed to drive. NHTSA, where are you? We need help on this

- Bellmore, NY, USA

At critical accelerating situations (turning, merging, passing...) the minivan will hesitate, and no power is delivered to the wheels. As a result, the car does not perform as intended and can cause an accident when turning, merging, or attempting to pass. The only resolution is to remove any pressure from the accelerator and allow the car 1-2 seconds to recover, then you can usually accelerate slowly. Sometimes this has happened multiple times in the same accelerating event. This happens on 2018-2019 Honda Odysseys with 3.5l V6 with ZF 9HP transmissions. This has happened multiple times and Honda has failed to correct this issue. This is a known issue and has been part of a class action lawsuit. The most recent incident occured yesterday and the vehicle automatically shifted into Neutral and would no long drive.

- Downers Grove, IL, USA

2018 Honda Odyssey failed transmission systems. This vehicle had recalls in regard to TCM module and softwares in past. Normally transmission system should last well over 150,000 miles for this type of vehicle. My car failed at 74000 miles. That too without any advanced warning. Vehicle was maintained and serviced at same dealership regularly where it was purchased. Honda is claiming its outside their 60000 mile powertrain warranty. Honda expects me to pay over 10,000 dollars for repair. I believe my vehicle is having issues with transmission related to TCM module recall of 2019 and Recall 04v176 of 2023. Honda is refusing to look in to possibility of my vehicle's issue could possibly related to those recalls. I believe those recalls need to be looked at and my vehicle should have been involved in those recalls. I have documented proof for all services performed and current vehicle inspection report.

- Lakewood Ranch, FL, USA

My 2018 Honda Odyssey doesn't have any current vehicle recalls but it's is experiencing the engine stall while driving, the power sliding floors not locking properly and the power trunk making a grinding noise when it opens and closes. I had the vehicle inspected at the local Honda dealership and they told me there was nothing they could do about the vehicle stalling, the power doors not closing and the trunk grinding. From releasing the brake and pressing the gas, the vehicle will stall and then spin the tires as if I'm racing or burning rubber.

- Oceanside, CA, USA

While driving, the transmission will go into limp mode and will not drive over 40 mph. Comes on and off intermittently. Will not show error code. Was almost rear ended by semi trailer when happened

- Cadet, MO, USA