Power Train Problems of Honda Civic Hybrid - part 2

Cvt is slipping, hard to power up hills, doesn't kick in after a stop and sometimes stays on or speeds up around corners. Just had the transmission oil changed and problem has not improved.

See all problems of the 2006 Honda Civic Hybrid 🔎.

Multiple failures of the continous variable transmission dealership just changes transmission fluid until now, since vehicle is out of warranty they now recommend a transmission replacement. American Honda motor will not cover the repairs.

See all problems of the 2005 Honda Civic Hybrid 🔎.

Transmission is juddering when accelerating from a stop. I'm only 10,000 miles over the 105,000 extended transmission warranty (they know the transmissions are broken), and I have an extremely extensive service record with the dealer. They refuse to work with me on the issue. A recall should be issued on the cvt transmission and starter clutch, and the warranty should be extended to 200,000 miles.

My vehicle when starting from a dead stop shudders for jitters when you go. This seems to slowly be getting worse. I have changed transmission fluid on regular intervals with Honda cvt oem transmission fluid. Also my airbag sensor light for the drivers side is constantly on. This has been on for several years. I have just never bothered to take it in for fear that there would be a charge to fix an item that I feel for safety reasons Honda should take care of.

See all problems of the 2004 Honda Civic Hybrid 🔎.

After my 2006 Honda Civic Hybrid received an integrated motor assist (ima) software upgrade in 2010, if the car is parked for one day (such as a Sunday, if I do not drive the car) the ima battery will drain within one half mile of leaving my home the next day, on a level roadway, even if the ventilation system and radio are off to reduce electrical load. Fuel economy also dropped about 10 mpg after the software upgrade. Without ima, the car has slow freeway acceleration, especially when traveling uphill. The Honda dealer says they cannot do anything because the ima system light does not illuminate (obd does not show a fault) although the dealer can reproduce the problem after keeping the car overnight. How do you know the ima software upgrade does not prevent the ima light from illuminating when there is an ima battery fault, therefore not requiring Honda to replace the ima batteries under warranty?.

Ima battery is defective, wears out earlier than designed, causes dangerously slow episodes of being able to accelerate from a stand still and accelerate to merge with highway speed traffic. Gets horrible fuel mileage, no where as advertised, especially in very hot weather. */01/2012 updated bf the consumer stated the ima battery light illuminated. The dealer suggested a software upgrade update. When the consumer turned the vehicle off, and back on again, the light did not illuminate. Updated 03/16/12.

See all problems of the 2009 Honda Civic Hybrid 🔎.

From my driveway, I shifted from park into drive, and heard a loud whirring similar to a metal belt falling apart. It has continued to get worse of the year, and only shows up when in drive and now a bit in reverse. It is not present in park or neutral. The dealer replaced the clutch brake, but I still have the sound. I also have minor slippage, and I have read several others having the same complaint about their same model with replacing the transmission. When I was sold this car, a first generation hybrid, I was told it would last 200k miles without any major maintenance. I have had degraded fuel economy from 43mpg to 32mpg. I was told it would be 45-50 when I purchased it new. At 112,000 miles, I think this is a safety issue and a late reaction to a serious design fault. My model was recalled in japan for this issue, but it has not been recalled in the us. I won't let my wife or daughter drive this vehicle because of this issue. I am concerned that at any minute, my transmission can stop functioning. The dealer says the "fix" is to change the transmission fluid more often then originally advertised. This August 2012, the dealer wants me to replace it for $5k.

Took car in for oil change 4/30/2011 at Honda dealer. Service department performed reflash campaign 10-034 without asking. Previously had declined this service and is noted in service records not to perform this service ever. Car performance has been significantly diminished since this service has been performed. Car will not reliably accelerate smoothly from standstill (red light) or when merging into highway traffic at 40-50 mph. When accelerating from a stop, vehicle may or may not move at acceptable speed causing the potential to enter traffic with inadequate power to get up to speed of oncoming traffic creating a hazardous situation. This is an accident waiting to happen, especially since the performance is now inconsistent and you do not know when it may not accelerate as needed. The engine will rev very high but the car will only go 5-10 mph with pedal all the way to the floor. Honda dealer has been unresponsive. I am limiting driving this car as much as possible as this car is unsafe in traffic situations. Also, the auto-stop feature does not work as prior to the reflash, engine idles much higher at stops and does not cut off. This has decreased gas mileage significantly.

See all problems of the 2008 Honda Civic Hybrid 🔎.

The integrated motor assist (ima) hybrid system loses power with no known precipitating factors or advance indication of failure. The vehicle will immediately reduce power train output prior to the dash gauges indicating a near-complete loss of ima battery charge and function moments later, with only the internal combustion engine providing motive power. Within 3-4 miles of driving, the ima battery charge, as indicated by the dash meter, will then immediately jump to a completely full level in a similarly unexplained fashion. Independent of these transient but regular failures of the high-voltage hybrid system, the vehicle functions as expected. Currently, I have documented over 160 instances since 4/22/11, occurring an average of once every day the vehicle is driven, increasing to 2-3 times daily since mid-November, 2011 (data available on request). Symptoms occur independent of ambient temperature, nature of drive (high/low speed) and despite changing the 12 volt battery and disconnecting or turning off all power accessories possible. Following a satisfaction campaign by Honda in late summer/fall, 2010 that involved a software update installed at a Honda dealership and replacement of the DC-DC converter portion of the hybrid system under recall shortly after, the episodes of loss of power impairing vehicle operation have increased in frequency. An additional software update by Honda completed on 11/10/11 has further exacerbated the rate of transient failures of the ima system and impacted vehicle driveability. Multiple software updates pertaining the the ima hybrid system have also been installed on the vehicle by Honda dealer technicians over the previous 3 years.

About 2 years after purchasing our 2009 Civic Hybrid, it began to have serious acceleration issues. The problems appear to be related to the traction battery charge level, and it is worse when ambient temps are high. The fault is that the vehicle will unpredictably fail to accelerate, as the traction engine refuses to assist, and the gasoline engine and cvt barely accelerate the vehicle until rpms get up higher. After getting a warranty replacement of the battery, the situation was much improved, but now as the vehicle ages the problem is back, and worse than ever. It is impossible to confidently merge into traffic, as the vehicle is dangerously erratic in performance.

It appears that there may be a trend of premature ima battery failures for this vehicle and should be investigated. On our brand new 2010 Honda Civic Hybrid with less than 952 miles and less than 4 months of use, the ima and check engine lights came on. Ima battery - premature battery module deterioration (code p0a7f. ) was determined to be the cause of ima and check engine light. The battery module was replaced by the Honda dealer. Ima and check engine light came again in October 2013, less than 3 year of use. Took it to the Honda dealer. They checked it out and replace the battery module on 10/31/2013. The ima code was the same, p0a7f high voltage battery deterioration. The mileage was 46,084. Two ima battery failure in less than three years appears to be excessive. The original warranty on ima battery module is 8 years, 80,000 miles (for ohio) as listed in the owner's manual . For some states, it is 15 years, 150,000 miles. Although, both batteries were replaced under original warranty, it appears that there may be a trend of premature battery failures for this vehicle and should be investigated by appropriate agencies and the car company. Safety as a result of loss of power without the battery assist, fuel consumption (mpg), replacement costs of batteries and time required for the repair/replacement are the main concerns. The warranty info on the replacement is sketchy and unwritten.

See all problems of the 2010 Honda Civic Hybrid 🔎.

Bought this car new. I won't even go into the ridiculous 49/51 mpg window sticker that is a blatant lie but that does play into my complaint as you will see. Honda, after receiving complaints about the battery pack and having problems with it, has this brainstorm to reflash or reprogram the computer/battery pack as part of a recall this past year. This was done at my last oil change. Prior to that time my sole complaint with my car was that the mpg averaged about 35mpg period. Since this last recall and reprogram not only has my fuel economy gone down but the performance of the car is essentially unsafe from a stopped position. Let's face it, the car never was a nascar but on the other side of the coin it was not a golf car either. Now when starting out from a stopped position, whether at a stop light or anywhere and whether the motor has shut off or not, the hybrid is so bogged down that I honestly believe my golf car accelerates better and more quickly. Let's set this straight too. I'm 41 and not trying to drag race I'm merely trying to drive the car in a normal safe manner. At times it feels like the car is going to literally die in the middle of a turn or intersection which can be a bad thing once you commit to a turn and there's a 53 foot 100,000lbs of fun coming in your direction. Honda has gotten away with ignoring my complaints about the hydroplaning of this vehicle, the ridiculously low fuel economy, and now they will likely do the same with their attempt at making their battery last longer which has made the vehicle less safe for me and my wife and kids. This "recall" was nothing more than a battery life extender to protect Honda's wallet. How about replacing everyone's battery once for the life of the car? that'd make sense to me. . . You know. . . The guy that shelled out 24,000. 00 for your car expecting to receive mid to upper 40's in fuel economy. Fix it.

There is a potential for the voltage converter that relays power from the integrated motor assist (ima) system to the vehicle's electrical components to fail. . A cvt doesn't actually have gears, so the system uses electronics to direct the transmission to up- or downshift in specific ways when a driver hits a paddle. Battery loses charge suddenly and power is significantly lost to the point where acceleration is not possible. This has created several unsafe driving condition in highway and expressway entrances, as I can not get in safely or maintain safe speed during driving. This incident has repeated many times in the past three years. Battery indicator drops to zero bar or one bar and power is lost significantly. Sluggish to poor acceleration, especially in highway merge situations placing owner is dangerous situations. When battery charged at least 50%, acceleration is acceptable as the ima assist in acceleration. The vehicle's hybrid ima system (integrated motor assist) has been steadily deteriorating the hybrid battery system must recharge so frequently that battery assist is available less than half the time. When assist is unavailable, acceleration is dangerously low, making common driving situations such as left turns, freeway onramps, and merging into traffic unpredictable and quite hazardous. Honda's only response has been a series of ineffective software updates. Honda will not replace the battery under warranty unless a warning light appears. Yet even the current severely degraded performance of the battery does not trigger that warning light. I have been in several near miss situations when acceleration was so sluggish that I was nearly unable to evade a dangerous traffic situation.

See all problems of the 2007 Honda Civic Hybrid 🔎.

2006 Honda Civic Hybrid experiences frequent, significant loss of power at random times due to battery re-calibrations which a) prevent electric motor assist and b) use engine power for charging resulting in a significant loss of power for accelerating from stop, entering freeways or climbing hills. The Honda ima system (integrated motor assist) uses an electric motor to augment the small 1. 3l engine. Because the electric motor is locked out during battery recalibrations, there is a noticeable 20% loss of power for acceleration. When the gasoline engine is also being taxed with generating electric power for battery recalibration, the total loss of power is very significant and results in an already slow car (0-60 in 13. 5 seconds) becoming dangerous when trying to cross intersections or merge into freeway traffic. My research suggests that this problem stems from premature degradation of the hybrid battery pack.

Honda performed an ima software update on 12/22/2010. Since that time the availability of electrical assist has been greatly reduced. Even when the battery reads full, I cannot be sure that electrical assist will be available, or, if it is available, how long it will last. Several times it has suddenly failed in the middle of a merge or lane change.

I have a 2009 Honda Civic Hybrid. After having the vehicle for less than 1 year I noticed that the battery began to suddenly drop it's state of charge (soc) during the first few miles of driving after the vehicle was parked for several hours. On sustained trips the vehicle will suddenly drop its charge about every 20 minutes. The safety issue is that when the vehicle suddenly loses it's state of charge (soc) there is a significant loss of acceleration. If the sudden loss of soc occurs at a time when you are pulling out into traffic, you find yourself being unable to accelerate to avoid the oncoming traffic. On several occasions I have pulled out into traffic with the soc reading 75% or higher, only to find that "at that exact moment", the vehicle decided to dump its charge. On several of those occasions I was nearly run into by the oncoming traffic. Honda replaced the battery in March 2010 and the problem went away, but after 6 months with the new battery, the problem returned. Honda refuses to replace the second battery, insisting that the vehicle is operating normally.

Honda Civic Hybrid ima no assist or lack of assist and mileage reduction after ima software recall update. I had no issues prior to the ima recall software update performed at the dealer. The car seems to now use less electric motor power to accelerate or to go up hills. This can become dangerous in certain situations. Also the car has seen a decrease in fuel economy of 16% city and 24% highway. Contacted 2 different Honda dealerships and they both said some people have the same issues but Honda does not have a solution for them. Called Honda motor corp. Directly to try to get warranty fix or at least for them to uninstall the ima sw update and they said they cannot do that. They will not replace my battery which is still under the 8 year warranty or resolve my sw update issues. It seems with so many people having an issue someone like the government should step in and force Honda to rectify the issues for free rather than having people waste their time going to small claims court or filing a class action suit.

My 2008 Honda Civic Hybrid was reprogrammed in 2010 due to problems with the hybrid battery system. It was a mandatory reprogram that has resulted in a significant decrease in the utilization of the integrated motor assist (ima) hybrid system. This decrease in use has had the direct effect of reducing power of the vehicle when starting from a stop, and poses a safety threat when maneuvering at intersections and in traffic. In some instances, the vehicle will accelerate very slowly regardless of the amount of pressure applied to the accelerator. This problem was not present before the hybrid system was reprogrammed by Honda, and they will not revert the system to its original state because it will result in costs associated with replacing defective batteries under warranty.

I have a Honda Civic Hybrid 2006, last days I have my ima light and check engine light come up, I went o the dealer o'hare Honda and they refused me to do the a recall update to the software and fix my check engine light and ima light that is related to the electric engine with battery. I will mention that the warranty book says that they need to fix these issues under a federal law 8/80k but they treat me bad and not even open to discuss. When I asked to talk with somebody else they old that no manager was Friday at 12 pm. I mention that my warranty was canceled and car mileage is 78. 000, I don't feel comfortable to drive this car is losses power and is dangerous when you try to pass another car or an intersection with these issues.

Summary: my 2006 Honda Civic Hybrid received the integrated motor assist (ima) software upgrade in 2010, since then vehicle performance is unreliable. If the car is not used for about 10 hours or more I. E. One day the ima battery will drain in less than a mile of leaving my home the next day, on a level roadway. This leaves me with the gas engine only and driveability in traffic suffers a lot with slow acceleration and poor overtaking capability to the point of being dangerous. After about 2-3 miles the ima system will start to indicate charging and within a short distance the ima indicator will suddenly jump from 3 bars (low) to 8 bars (full) in a matter of 3-5 seconds. This is not normal nimh battery behavior my Honda dealer says they cannot do anything because the ima system light does not illuminate (obd does not show a fault). In my opinion from driving the vehicle the ima software upgrade has done nothing to solve the basic problem and has reduced my economy by about 8 mpg!.

The car will not resond properly from stopped postion when acceleration is needed.

Bought car in may 2006, by Aug 2006 I was only getting 36 miles per gallon. Brought car to dealer. They said they replaced a part to fix problem. Problem not fixed! brought car back 3 more times and dealer said I was driving the car wrong. I told them to keep the car for a week, they did but still could not get the mileage over 37 mpg. They told us they didn't know what the problem was and there was nothing they could do about it. Went through 3 back tires on drivers side. They still wouldn't do anything about it! I had to pay for it! the car was getting worse and worse. Finally we took it to another dealer. They found that something was broken by the back tire (which is why I had to keep replacing them) and I needed a new transmission. All of that was covered under warranty. That was in September 2010. They also told me that's why I never got the mileage I was supposed to get. That was when they told me that I needed to get the software update!! now my car is not drivable! the battery doesn't charge, the car cant accelerate! the service manager and the foreman told Honda America that the car is not safe and Honda America doesn't care! I filed a claim and I was told that there is no problem with the car. I just need to get used to driving it differently! when I pressed them and told them my car is now undrivable, I was told that they had nothing else to say to me! Honda really messed this one up! people are going to get killed driving these cars. . . . And they know it! my car was a lemon since the day I bought it! paid $5,000. 00 extra for it , never got the mpg, and now I cant drive it!.

I received a letter from american Honda corp. Stating that I needed to get a software update on my 2007 Honda Civic Hybrid ima battery. I took the car to my local dealer and since the update has been installed the car is dangerous to drive when entering the freeway. The failure to accelerate happens everytime I enter the freeway. The consequences of this failure is that cars behind come up on me very fast and I have no power to get in the flow of traffic. It has little acceleration to match traffic flow. It seems the car is mostly operating on the small engine and has little assist from the battery,since the update has been installed. I called american Honda they said there was no problem with the update on the performance of the car and they would not do anything regarding my concerns. I feel this car is an accident waiting to happen. As well ,Honda said they will not change the warranty on the battery even though they have changed how the battery operates since they have installed the update. I ask you to consider telling Honda to recall this car and make it safe to drive. I want my car to run the way it did before the software was installed. A side complaint is that the good gas mileage I got on a tank of gas as dropped considerably since the update. . Thank you for your consideration on taking on this complaint. . P. S. There has been no accident. I filed this complaint so that there is none in the future. The incident date of August 11,2010 is the date the new software was installed in my car.

In August 2010 I took my 2008 Honda Civic Hybrid to the dealer for routine maintenance. The dealer performed a purported software update on the battery system without notifying me until afterwards. Immediately upon leaving the dealer, I noticed a profound reduction in power and acceleration. On the freeway portion of the drive home, I was almost rear-ended twice as I drove in the slow lane up a minor grade where the vehicle could not accelerate over 40 miles per hour (with the pedal fully depressed in the passing gear)-- prior to this date I had driven my vehicle for its prior 20 months of ownership up that same grade at 70mph. Additionally, prior to this date I had never even utilized the "s" gear on my transmission. Ever since Honda's software update my car has become a severely underpowered accident waiting to happen. I am reduced to driving in the slow lane on the freeway with vehicles flashing me as they approach a 40-45 mph vehicle at 60-70 mph from behind. I have called the Honda service departments at several local dealers regarding this problem, and get a universal response- "wait for your system to adjust to the software update" or "you need to adjust your driving". What the heck does this mean? I drove the vehicle fine for 20 months prior to the software update and now it drives like a 20 year old 4 cylinder engine with 2 bad pistons. The decreased power and acceleration are a dangerous accident in the making. I am fearful of being rear ended. This is an every day problem that was caused by this "software update" and I suspect that it is happening to every 2006-2008 Honda Civic Hybrid that goes to the dealer for this software update. An additional consequence of this alleged "software update" is a profound drop in gas mileage from approximately 37 combined mpg prior to "update" to 29-30 post "update". I have never lodged a complaint with any organization before, but like I've previously stated, this "update" is a danger to the public.

After the Honda dealer performed a software update per a recall to extend the life of the battery on my 2008 Honda Civic Hybrid, the vehicle began losing power intermittently and the gas mileage dropped significantly. Returned to dealer and was told "everything checked out. " problem still unresolved.

2008 Honda Civic Hybrid with 24,000 miles with hybrid battery and performance degradation that is, at times, a real issue. Battery doesn't hold charge very long and very adversely affects acceleration. Problem is very repetitive and very adversely affects acceleration. Honda's recall software update was applied within the last 30 days but battery is still not holding a charge and acceleration degradation and safety remains an increasing concern. Honda should replace these degraded batteries but won't take any action until an ima light comes on - at which time, the battery would be almost fully degraded. Battery degradations happens very often - even after the recent Honda software update and many Honda Civic Hybrid owners are very concerned about this performance issue.

Upon receiving the 'mandatory' ima recall issued by Honda, I noticed my Honda Civic Hybrid (2008) acted very differently when it came to accelerating from a stop, particularly on a hill. From a stop it takes several seconds before the car will move forward at a reasonable speed (which it did not do prior to the update). Prior to the update, the car would accelerate like a normal car with the ima kicking in to assist the car forward. Post update it's like the gas engine wants the ima to engage but the new firmware won't allow it to. The first time I experienced this, I was nearly hit coming out into traffic as my car hesitated. Honda has stated there is no way to reverse the update. This decrease in power continues to affect me today (at 60,000 miles and climbing). This update has affected my fuel economy as well (having dropped between 30-33 mpg on a "good" day). While the fuel economy may not be a personal safety issue, it is an environmental safety issue.

We received a letter from Honda stating that there was a recall on the software stating that a software update was needed to be done on the car to help the battery life of the car. So we brought it in to be serviced and ever since, we've lost power to the car, and lost mpg that used to be approx. 38 mpg to now 29 mpg, the same as our '99 civic coup dx, that is not a hybrid. My wife, while going onto the freeway was almost hit, while trying to accelerate. My wife is now hates driving the car she used to love. We live in a hilly area. When trying to accelerate up a hill we drive everyday, if the battery charge is 4 blocks or lower, it doesn't even assist. It's all the gas engine. The battery rarely kicks in so that defeats the hybrid theory and just adds more pollution that Honda purports that it doesn't. To put it straight, this is not the car I bought and have been frustrated with the experience. I've brought my car back to Honda to try to get the software issue resolved. They stated that there is nothing wrong with the car, engine or battery that everything is fine. When asked for an explanation for the loss of power and mpg, they said that I should try a higher octane of gas or a different brand. I have always used the highest octane gas from different gas stations without any issues before the software upgrade. So that isn't the problem. They have refused to say that there is an issue with their "software upgrade". I have pretty much wasted $26,000+ on purchasing this car. All I can say is this is shame on another big company, trying to save $$ by taking advantage of their own loyal customers. Thank you Honda!.

Honda asked me to apply the Civic Hybrid battery pack software upgrade patch sometime end of 2010. After applying the patch the mileage on the car went down from 45-49mpg to 35-40mpg and also reduced acceleration from a red light or stop sign - car just drags to get accelerated. Complained to Honda dealer many times and they keep telling me its the way im driving and nothing wrong with the car. I have also joined the Honda Civic Hybrid class action lawsuit. This is absolutely un-acceptable to give false information to the customer while selling the product and I feel cheated.

From what I has been told to me by the dealer, the starter clutch in the transmission of the cvt Civic Hybrid becomes deficient and upon initial acceleration, from a stop, you feel a harsh jutter which gets worse with time until it fails. They put out a service bulletin but this only covers cars within warranty. But since out of warranty, they want people to pay $1500 to $200 for a problem which should never occurred.

I have a 2006 Honda Civic Hybrid. The problem is infrequent but potentially dangerous. While driving the car losses all power. The engine continues running but the accelerator pedal has no effect. The power steering and brakes continue working but there is no power. It lasts seconds. I have always stopped the car by braking and then started it up. It takes about 30 seconds before the power returns. It has never happened on the highway. This could be very dangerous with traffic around. A few days ago while driving up a 7 mile dirt road going about 15 to 25 mph it happened 3 times in less than 5 minutes. It was near the end of the road. The battery indicator on the hybrid showed it to be about 60% charged. No engine check light went on. Honda has not been able to solve the problem. They have tried. I am concerned about the computer system since there are idiosyncrasies with the system. For example, the battery charge light can suddenly showed the battery nearly uncharged and then suddenly show it normally charged. This should take time since the battery should charge over time. The stalling has happened during the times where the battery charge light shows a sudden change especially when I was running the air conditioning. However, with the 3 most recent episodes no air conditioning was on and the battery charge light showed a normal charge. Also the indicator that shows the mpg I am getting at that moment can go to zero when costing down a hill. I should be registering a maximum mpg reading in that setting.

On at least four occasions, once while moving at about 30 mph, the entire car shut down. The gas engine shut off, power steering and brakes went dead, and the dash went blank. I had to place the car in park, and then remove and reinsert the key in order to restart. This has happened once, though not while moving, since the ima software update.

Several times in the past the acceleration in my 2006 Honda Civic Hybrid has failed to provide the extra burst of speed when needed, making me uncomfortable in traffic. When this situation happens as I am leaving my subdivision I feel helpless in a situation of which I have little control. When I need to make turn from my subdivision from a stop, I need to rapidly accelerate to 45 mph uphill. Much of the time there is traffic approaching from the left which I am unable see to until they are on the crest of that hill, approx. 150' away. As you can see, I depend on the hybrid system working properly for that extra burst of speed. When this happens I notice the ima battery charge indicator showing the battery is in a depleted state. I do not know why this occurs so rapidly when 99% of the time it is just fine. I was relieved that Honda motor CO. Was proactive in notifying me of a software patch to enhance the performance of the ima system of which I had immediately installed. What my wife and I have noticed since the software patch was installed is the engine revs up higher during acceleration then there is a momentary hesitation before the ima system assisted the engine to get up to speed. Also since the patch was installed, the ima battery level indicator is at or near full charge. I have noticed an apparent decrease in fuel efficiency, but I am still compiling data to make an exact determination of the extent of that problem.

2006 Honda Civic Hybrid with 58,000 miles and the electric assist motor is not working as designed. I have taken the car to the dealer 3 times and they have told me it is a software problem. The car is difficult to drive without the assist motor. I think a recall is in order.

2006 Honda Civic Hybrid (30,000 miles) has loud rattle noise going over bumps. Noise was diagnosed as engine mount cavitation by Honda engineer. Dealer tried repair recommended by Honda engineer consisting of placing o-rings between engine and mount. This eliminated the noise. 1000 miles later the right engine mount broke and engine dropped in frame. Dealer replaced right engine mount per TSB but noise still exists and now Honda is stating that the noise is a characteristic of the vehicle and refuses to repair. The noise was not present in the first twenty thousand miles of driving. The noise is now a very serious concern of another imminent engine mount failure. If this occurs at high speed and engine again drops in frame, control of the vehicle could be lost.