Automatic Transmission Control Module Problems of Honda Odyssey

Upon starting the vehicle, it failed to engage in reverse. Although the backup camera activated, the vehicle remained stationary. After multiple ignition cycles, the vehicle eventually engaged in reverse and then moved forward in drive. However, shortly after, the vehicle experienced a sudden loss of power and entered "limp mode," restricting speed to approximately 15–20 mph regardless of throttle input. The engine revved excessively high without corresponding acceleration, and a severe burning/heat smell emanated from the transmission/engine compartment. This failure occurred without any prior warning; notably, no dashboard warning lights or "check engine" indicators illuminated to alert the driver of a mechanical or electronic fault. The sudden, un-signaled drop in speed on a public roadway created a significant safety hazard for following traffic and risked a rear-end collision. The vehicle was towed to a certified Honda dealership where the transmission control module (tcm) was diagnosed as failed. The tcm is currently being replaced under the Honda certified pre-owned (cpo) warranty. We do not know what else requires replacement and repairs. The dealership will not cover the replacement of the transmission fluid, or engine fluid, despite the fluid being subjected to extreme heat and potential damage during the failure and subsequent limp mode.

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At 67,000 miles the transmission was lurching when shifting in 4th gear. Took it to Honda dealership who found code p0736 stored in tcm. Transmission fluid flushed January 2024 by same dealer. No warning lights ever appeared. Body shop said this requires a new transmission at $10k+.

Recently had the fuel pump recall completed. Within days had intermittent dash emissions light come on then go away. Then a few weeks later, while driving, my Odyssey put itself into n and I coasted to a stop. It would not allow me to put the car into p or anything. I had to put the emergency brake on in order to not roll forward. The van at that point would not shift into any gear. It was towed to dealership and I was given the following 2k dollar repair needs. Problem. Advise. [other]: tcm (transmission control module) and transmission sub-harness needs replaced.

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Dear NHTSA advisor, thank you for regarding my request for warranty coverage for the critical misfire and overheating defect with my 2012 Odyssey Honda engine 3. 5l engine. Odyssey, as described in Honda’s service technical bulletin 13-081. I must reiterate the severity of my situation: the part required for repair is quoted at $7,500. 00—and that does not include labor. This amount far exceeds the current market value of my vehicle, effectively making it impossible to afford repairs without Honda’s intervention, it’s asafety defect & known manufacturer issue. The misfiring and overheating problems represent major safety risks for my family and anyone who operates the vehicle. This is not routine maintenance, but a substantial defect that Honda has addressed in its own technical bulletin. I have adhered diligently to Honda’s maintenance schedule throughout my ownership. Attached to this correspondence is a pdf containing the complete service technical bulletin 13-081. I am prepared to provide any additional documentation upon request. Warranty extension: mil comes on with dtcs p0301 thru p0304 technical service bulletin reference numbers): 13-081, date of issue: October 08, 2020 Honda: 2011-13 Odyssey superceded bulletin(s): 13-081, date of issue: June 18, 2019 Aug 5, 2025 license: odometer: note: supersedes 13-081, dated June 18, 2019, to revise the information below. Affected vehicles affected vehicles year model trim level VIN range 2011-13 Odyssey all check the in VIN status for eligibility. Revision summary under customer notification, outdated information was removed. Corrective action 2011 models: complete diagnosis procedure and if necessary, update pcm software (procedure a) , replace affected spark plugs then clean pistons and replace the piston rings (procedure b) • 2012-13 models: complete diagnosis procedure, replace affected spark plugs then clean the pistons and replace the pistons rings (procedure b). No need for software update as 2012-13.

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The contact owns a 2007 Honda Odyssey. The contact stated while driving 45-65 mph, the vehicle stalled. The contact pulled over to the side of the road and waited for two hours. The contact then continued driving 20-25 mph. The contact stated that the vsa (vehicle stability assist) and tpms warning lights were illuminated. The vehicle was taken to auto zone, where it was diagnosed with battery voltage, brake sensor, ecm and pcm failures. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 238,133.

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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.

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.

The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the mil comes on with dtc p0716. Abnormal tcm adaptation values or a miscalculation in the tcm software causes the mil to come on with dtc p0716. The harsh upshifts cause a momentary driver distraction which may cause an accident.

The contact owns a 2018 Honda Odyssey. The contact stated that while attempting to accelerate the transmission would not properly shift into gears and would also experience rough shifting. Also the vehicle would not properly accelerate up to speed when pressing the accelerator pedal and a loud mechanical noise was present coming from the engine compartment. The vehicle was taken to the local dealer who performed a tcm software update but the failures continued to occur. In addition while pressing the brake pedal to stop the vehicle had experienced jerking and vibrations and the driver side and passenger side sliding doors would erroneously reopen after being closed. The cause of the failures were not yet determined. The manufacturer was notified of the failures. The failure mileage was 50,000.

The contact owns a 2018 Honda Odyssey. The contact stated while attempting to accelerate, there was delay in response from the vehicle. The vehicle was taken to the dealer for diagnostic testing. The mechanic was unable to determine the cause of the failure however, the tcm module software was updated and the vehicle operated normally. The contact stated the dealer informed him that the failure could reoccur. The manufacturer was contacted and suggested that the vehicle be diagnosed by the dealer. The failure mileage was 17,000.

Good afternoon. My wife has a 2002 Honda Odyssey with a recall notice for a pcm. Manufacturer recall number is p48, NHTSA recall number is 04v-176. The vehicle VIN is 5fnrl18602b000145. The issue is regarding a pcm recall for 2002 Odyssey with a rebuilt transmission, which my wife's car does not have. Her car has the original transmission. The dealership where it was taken is west broad Honda in richmond virginia. The dealership told me that it is not a recall, it is a service bulletin, so there is nothing they can do. The case manager at Honda agreed as well that it is a service bulletin and does not pertain to my car. I talked to the case manager last on Monday April 29, and despite leaving messages since then for her to call me with a status update, I have heard nothing to rectify this situation. The dealership told me that they submitted a �fixed by inspection� report to Honda on Monday, but there is still a recall on this vehicle. This is the problem: I am in the military, and I have to drop this car off next week for shipment to my next duty station in alaska. However, they will not accept a vehicle with an open recall. It is required that I provide proof that there is no open recall, and I cannot do that because of this. I truly have no other recourse, and there is nothing I can do on my end to fix this. Furthermore, it really should not be my responsibility to continually call about getting this problem fixed.

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Service bulletin 13-081. Cel (1/7/16) : cylinder 3 coil r/r with spark plug ( other shop - paid $166. 75 ) cel (3/11/16) : p2422evap canister came up for same symptom (Honda said code is not p0303 - paid $1722. 86) cel (7/18/17) : p0303 misfire no. 3 cylinder (autozone) cel (7/18/17 - 10 min from autozone) - p0353 no3 cylinder ignition coil circuit came up (Honda - paid $255. 41 ; Honda said code was not between p0301 to p0304 so I had to pay for it - they do not care what autozone said ) received several times warning when I go and change engine oil from the shop that I do not have any left over oil in the tank. Cel (3/5/18) : found out car has a misfire on cylinder 4 and ring on cylinder 4 is leaking (other service - got a suggestion to go Honda dealer to check) made an appointment at Honda dealer on 3/8/18 without cel. Tech said no code in pcm fi system. He said Honda code is different from any other shop, so they only follow what Honda's computer says. (my opinion is that what if they debug their software after lost settlement not to show code p0301 to p0304 and show little different code for customer's responsibility - what if all others say p0303 ; only Honda comes up with different code) tech said if I do not pay for it, he does not even look at it. He said he does not want to do anything on the engine which has 184,000 miles on it if Honda or I do not pay (it's 2013 Odyssey) he told me this for the oil leaking which every car burn a quart of oil every 1,000 mile, so I have to check oil level all the time. He said when I have another cel on, just come to Honda to check. (do not go any other shop or bring code from other shops - he is not going to agree on any other shop's code or comment) my worry is that if other shops say p0303 or p0304, and Honda says different code which make I pay for it. What's going to happen?.

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While driving on the toll way at 65 mph the tcs & engine malfunction lights illuminated and the d (drive) indicator began flashing. As this was happening the vehicle began losing speed and pressing on the accelerator increased the engines rpms but the vehicle was still slowing down. I coasted to the side of the highway with the engine running and discovered no forward or reverse movement when shifting gears. The vehicle was towed to a Honda dealer that night. The next day I was contacted by the service associate and told the automatic transmission and pcm were defective and needed to be replaced at a cost of $6100. 00.

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For the past several years a significant jolt was felt when gears shifted on 2003 Odyssey. Sometimes the shift would come with a slight delay. Finally, check engine light came on. At the end I had to replace transmission and pcm.

Purchase 03 Honda Odyssey new and has been well maintained. In 4/04 took vehicle in for the automatic transmission recall. . . Under 14k miles. It is my understanding if it was over 15k miles that the transmission would be replaced if the inspection deemed necessary but under 15k miles then the dealer will update the transmission with a simple revision to the oil cooler return line. At 89,000 miles check engine light came on as well as the tcs light, then the "d' was blinking. Took into dealer and was advised that a new transmission was needed as well as the power control module---the pcm is required whether it needs it or not because that is what Honda requires. Price quoted $4961. The car only has a blue book value of $5k-7k +/-. This was my first Honda and was purchased for the safety and reliability factors---I am amazed that the transmission needs replacing already. Honda needs to step up and admit an issue with the 03' Odyssey transmissions like they did for the 99-01'.

On Friday, July 31, 2009, wife was driving our 2002 Honda Odyssey on interstate freeway at 65 mph. Vehicle has about 95,000 miles on it, and has been well maintained, including the 2004 recall. Without any warning or symptoms, vehicle began loosing power in jerking manner, violent enough to lock the seatbelts of my wife & 3 kids who were in the vehicle with her. Wife was able to get across lanes of traffic to get off to the side of the road, where she immediately called me. She was crying and very shaken up. She stated that had she been close to another vehicle, she likely would have been in an accident. Engine light and tcs light were now on. Took vehicle to nearby Honda dealership. They found "4 codes" the following day. Technician performed further work the following Monday & they said vehicle needed new transmission and new engine control unit (computer - aka ecm, tcm & pcm?) at a total cost of $4400. I was quite surprised to find all the information available on the internet that clearly indicates this problem dates back to model year 1999, and clearly was not fixed by the 2004 recall "oil jet" procedure. I also have not been able to get explanation from Honda as to why computer needs replaced. Either the computer is causing the problem or it is not. If it is, it should already have been replaced through recall. If it is not, the consumer is getting fleeced. Its one thing for a product to fail over time due to normal wear and tear. But it is not ok for something as fundamental as a transmission to fail in 7 years with less than 100,000 without warning while you're driving down the freeway. There will be a transmission that fails in traffic and will result in an accident, and somebody will get killed because of this problem.

Our 2002 Honda Odyssey while driving at 40 or 60 miles per hour severely jerked forward and then backwards with the same effect on the passengers as hitting an object, very scary> I took it to the Honda dealer and he said the problem was broken motor mounts which were replaced at a cost of $600. 00. Three days after leaving the dealer the problem returned intermittently and was observed by the dealer technician and now identified as a transmission problem recommending transmission and transmission control module replacement at $4800, with no guarantee that this would correct the problem. This is not why we buy Hondas. We do not expect transmissions to go bad at 103,000 miles. Now after a little research, I discover that a long list of Honda owners are suffering with this design defect with no or little help from Honda. As a owner of three Honda vehicles an incident like this will turn me to another manufacturer if Honda does not own up to its responsibilities to build a safe reliable vehicle.

The contact owns a 2003 Honda Odyssey. While driving at approximately 55-60 mph, the check engine and traction control system warning lights illuminated. In addition, when shifting gears, the vehicle was hesitant to engage for a few seconds. The dealer performed a transmission flush yet the failure persisted. The vehicle was taken back to the dealer where he was advised that the vehicle would need a new transmission and an updated pcm at the contacts expense. The contact declined and the vehicle was not repaired. The contact believed the vehicle was affected by NHTSA campaign id number:04v176000 (power train: automatic transmission) but could not verify if his VIN was included in the recall. The failure mileage was 93,824 and the current mileage was 105,826.

I purchased my new 2002 Odyssey ex in late December of 2001 and as of July 21 th e car has 87,520 miles. Sometime last week, the engine check light was on. I took the car to capital Honda for repair on Friday July 18, 2002. Service advisor, angelo pinillos called me back and told me that my car has the failure code of p0730, which means need to replace the transmission and pcm. He told me that "Honda dpsm offered one time good will assistance cp 25% ah 75% and customer would pay $2979. 25 valid for 30 days. " I feel that this is a design flaw and Honda knows about this problem since 1999 Odyssey and Honda should pay for entire repair. Dealer said I can take the car home and so I did. I called Honda motor (800-999-1009, case manager's ext 118047) and they have opened a case for me and the case still under review. He asked me to send him prove of changing the transmissionfluid but I told him that I may not be able to find it. He seems to imply that Honda would not able to help me much if I don't have the maintenance record. I first noticed the problem about 2 months ago, the rpm went up for no reason and the car has no power but it went away after release the gas paddle. It happens about once a week at first and the frequency has been up to like 3 times a week and then the engine check light went on. I don't remembered when but their record shows that my car have been service one for the transmission recall by other dealer which I have been there for oil change once or twice. Honda should provide fix this transmission problem free of charge to it customer just like they did for Odyssey 1999-2001.

2002 Honda Odyssey transmission slips and shudders shifting from 3rd to 4th gear. Initial transmission recall service for 2nd gear oil jet performed on June 10, 2004 at 34672 miles. Vehicle taken to Honda dealer for transmission check after calling Honda north America and opening complaint case. Service department manager stated that transmission and pcm (control module) needed to be replaced after checking vehicle. Service manager stated repairs would cost $3200 total with american Honda agreeing to pay $1600. Transmission is an ongoing and known (by Honda as noted by the service manager) problem in the 2002 Odyssey.

The contact owns a 2000 Honda Odyssey. The contact stated that both of the sliding doors were experiencing numerous failures. The doors are supposed to automatically slide open whenever she presses the buttons or pulls on the handle. When she does this, the doors fail to open properly. Occasionally, the doors do not open at all and will close halfway, forcing her to have to exit the driver's seat and close the door manually. The failure has since worsened. The rear driver's side sliding door was not working at all. The passenger side sliding door will not automatically close and must be opened or closed manually. Both doors were replaced under warranty. The contact was unsure of the work performed on the doors at the time of service; however, the failures would immediately recur. The only way that the rear passengers could exit the vehicle was through the front passenger or driver's side door. The contact believes that in an event of a crash, the children would not be safe. The doors have not been replaced and only the passenger side sliding door is currently able to open. In addition, the transmission is failing and has been repaired at least three times. While driving, the contact noticed that the brake and tcm indicators illuminated on the instrument panel. When she reached 40 mph, the rpm dial began moving up and down randomly. She took the vehicle to the dealer, but they could not find any failures. A few days later while driving 40 mph, the vehicle shut off and was towed to the dealer. The dealer rebuilt the transmission; however, it failed again six months later. The transmission was replaced a second time, but failed again after a few weeks. The failure mileage was 74,614 and current mileage was 137,066.

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After receiving a recall letter consumer made an appointment with dealer seven weeks prior to taking the vehicle in. Vehicle was taken to dealer and left overnight. After consumer arrived at dealer to pick the vehicle he was told that the part would not be in until December 2004.

2002 Honda Odyssey. Consumer states problems with vehicle transmission and other problems the consumer stated the vehicle would jerk and sputter on acceleration. The dealer was unable to duplicate the problem. Three months later, the vehicle was exhibiting the same problems. The dealer then found metal shavings in the transmission, which was replaced under warranty. One month later, the vehicle was still shuttering, but the problem could not be duplicated. The van was back at the dealer due to the engine light illuminating and the jerking and shuttering was still present upon acceleration. The egr valve, timing belt, motor mounts and pcm were replaced. The transmission was replaced again.

Ongoing automatic transmission failure while driving at 40 mph. Vehicle slipped out of gear, hesitated before accelerating, and tachometer dropped to zero. Dealership was unable to duplicate or resolve the problem. Dealership replaced the ecm and the pcm in an attempt to correct the issue. But problem recurred.

With less than 45,000 miles, transmission fails to engage smoothly when pulling away from a stop. Also, does not down-shift smoothly at high rpm. Other symptoms are the tcm light and check engine light come on. Upon diagnosis, the dealer confirmed a transmission problem. American Honda agrees to replace the transmission and will cover the parts, but the dealership wants $700. 00 in labor to complete the repair. A 36,000 mile warranty on a transmission is inadequate - I've driven Hondas and toyotas 150,000 and more in the past and have never had a transmission failure. With the number of transmission problems reported for this vehicle on this web site, Honda should stand behind their reputation and correct this problem long-term. I plan on driving this vehicle to 120,000 miles or more - at this rate, that means 3 transmissions!.

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The van's engine warning light and traction control light came on at about 2700 miles while I was driving the vehicle. In addition, the vehicle gear shift was in the "d" mode for drive, and the green light began blinking off and on at the same time the engine light and tcs light were illuminated. The Honda dealership replaced the pressure control solenoid and this ended the lights being display. Today, at 3100 miles, the engine warning light and tcs light came on again and the "d" gear shift light was blinking off and on. I took the vehicle to the Honda dealership this morning and was told 5 hrs later that my vehicle needs a new transmission. I am shocked and also disappointed. It is new and cost $30,000 to purchase. What a bum deal.

The vehicle experienced the following: out of alignment, loud bang/ticking, shaking, engine hesitation, inoperative a/c, a contaminated filter with metal shavings, a/c drain tube was rubbing and draining on the steering rack boot, coolant reservoir was empty and the right front seal on the body was damaged due to it being improperly placed, a/c knob was broken, the a/c airflow automatically changed, when the a/c blower motor speed decreased, various dash lights would dim, the hood latch was defective, static shock problem, there was a coolant smell, due to the reservoir fluid level, the sliding door was inoperative, the transmission was defective, the crankshaft pulley and the steering wheel vibrated, the right door seal had come apart, the splash shield clip was missing, the idle speed fluctuated from 750 to 2000 rpm with the vehicle in park/neutral, and immediately after, the mil light had come on. The repairs are as followed: wheels aligned, a/c condenser and compressor evaporation dryer, intake manifold, reinstalled rear evaporator/heater unit, installed a drain tube in the retainer bracket, hood latch was replaced, pcm replaced to solve the transmission problem, removed the broken bolt from the block, the crankshaft pulley vibration is still unresolved, and the slash shield clip has been replaced. Scc.

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Date: 3/17/99; mileage: 12,264;ngine check light code p0740, transmission system flushed. Date: 11/08/99; mileage: 23,874 enginecheck light on, defective ecu, bulletin 98-033. Date: 12/20/99; mileage: 25,706; engine check light on, replaced ecu and flushed transmission. Date: 7/24/01 engine check light on, code 740 torque converter locked up, transmission flushed. Date: 11/06/01; mileage: 61,115:engine check light on, code po740, special order pcm (control module) per bulletin. Date: 11/12/01; mileage: 61,281 engine check light on, installed pcu and flushed transmission. Date: 7/12/02; mileage: 70,624; engine check light on, failure code p0740, clutch failure, will need torque converter replaced, est. Cost $1400. As can be seen, this same design flaw has been ongoing since 12,000 miles. The controller was "too sensitive" and replaced, which brings into question the reason for the ultimate clutch failure. Failure of the transmission could lead to serious accident and loss of life, for instance, should this occur during acceleration into busy traffic. Requesting assistance ASAP. Note: car was purchased at griffith Honda, baltimore, MD, but has always been serviced at o'donnell Honda, ellicott city, MD.

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