The contact owns a 2001 Acura MDX. The contact stated that the vehicle violently lunged forward intermittently. The dealer stated that the transmission needed to be replaced. The VIN was excluded from NHTSA campaign number: 04V176000 (power train). The vehicle was not repaired and the manufacturer was notified. The VIN provided was invalid. The approximate failure mileage was 137,000.

- Hartsdale, NY, USA

Car keeps slipping like it's trying shift gears. Jerk like when speeding up. Now check engine light is on and does not pick up speed. Driving on D5. Is this a known issue? this is dangerous and can cause accidents.

- Sacramento, CA, USA

Own a 2001 Acura MDX (since 105K miles) and I noticed on driving an intermittent - what almost sounded like gear grinding. Is that possibly shuttering. The sound comes and goes unpredictably but seems to occur most in the 42-50mph range - without any dramatic RPM changes. Normally during shifting from 2nd to 3rd gear, sometimes sound like loud drum brake vibration or shaking, scary and at 150,000 mile when I took it for tradein at buerkley Acura mpls mn they admitted it has faulty tc but before that last 6-7 years I took it to white bear Acura & so more dealers they completely denied it has any issue with tranny or tc, according to them the tech could not reproduce the noise/vibration, now they are saying just avoid driving in D4 to avoid the issue, im really felt like being cheated by fraud company with poor ethics!

- Saint Cloud, MN, USA

Transmission failure.

- Gladstone, OR, USA

2nd occurrence) during the month of October 2012, I was driving when the speedometer moved up and down really fast. The car felt like it was going to shut off. I had to put the car in park and press the gas pedal to keep in running. On my way to the mechanic the car accelerated really fast with a hard jerking motion. It cut off when I stopped at the street light. I turned the car back on and drove no more than fifteen feet when it started jerking again. The mechanic said I needed to replace the idle unit the valves. 3rd occurrence) during the month of March 2013, I was driving to vegas when the car started smoking I pulled over to let the car cool. I restarted the car and drove a few miles when it began to lose power and smoke and. I called aaa and got towed to a mechanic who told me I needed a new transmission. Which he quoted me $3,400 for a one year warranty.

- Lomita, CA, USA

1st occurrence) during the month of March 2011, the car started jerking while I was driving. It would speed up then lose power. It was very hard to stop the car. I took it to a mechanic who put it on a machine that showed I needed a new transmission. I paid $2,800 for a rebuilt 90 day warranty transmission. Something must be done to bring awareness to this issue along with reimbursing customers for having to spend their money repeatedly for issues that keep occurring. I need help in finding out how I can submit a claim for reimbursement to cover the cost of Honda's faulty manufacturer defect.

- Lomita, CA, USA

2nd occurrence) during the month of October 2012, I was driving when the speedometer moved up and down really fast. The car felt like it was going to shut off. I had to put the car in park and press the gas pedal to keep in running. On my way to the mechanic the car accelerated really fast with a hard jerking motion. It cut off when I stopped at the street light. I turned the car back on and drove no more than fifteen feet when it started jerking again. The mechanic said I needed to replace the idle unit the valves. 3rd occurrence) during the month of March 2013, I was driving to vegas when the car started smoking I pulled over to let the car cool. I restarted the car and drove a few miles when it began to lose power and smoke and. I called aaa and got towed to a mechanic who told me I needed a new transmission. Which he quoted me $3,400 for a one year warranty.

- Lomita, CA, USA

My MDX shakes while driving not specific to acceleration, but periodically it will shake severely for a few seconds and stop with no intervention from me. I do not slow down or stop when this hard shaking occurs--course it's normal for me but my passengers are startled and concerned. This MDX has bee doing this for years. Dealer says I need a new transmission. Other repair facilities have investigated and tried repairs that did not resolve the problem. This MDX also "growls" there is a loud sound that is heard while driving that ends with the vehicle nearly stalling out but I continue to press on the accelerator and it has so far not stalled. I brought this to the attention of the dealer also during the inspection for severe shaking and I was told I needed a new transmission. This was 4 years ago and I am still driving the vehicle with these concerns. Since the original complaints of shaking and loud growling sounds I have had issues with the gear shifter. When I wanted to put the gear in drive it would not go. There was something preventing it from moving-locked maybe? I used the key release for the gear and put the car in neutral to start the engine and then into drive. This happens sporadically maybe a couple times a year so far. I have not had this issue investigated. I started to hear front end sounds almost immediately after the recall work was performed by the dealership. Since that dealership and I had a mutual disagreement that was distasteful enough to cause me not to return there I have tolerated the clunking sounds from my front end. Now that particular dealer is no longer in business (sold the franchise) I am bringing my vehicle back to the dealer for possible investigation of the front-end noise.

- South Euclid, OH, USA

The contact owns a 2001 Acura MDX. The contact stated that after parking the vehicle, the vehicle independently shifted into drive and rolled down a residential driveway. The rear bumper of the vehicle crashed into a tree. There were no injuries. The vehicle was taken to an independent mechanic for diagnosis but they were unable to duplicate the problem. The VIN was not available. The manufacturer was notified of the failure. The approximate failure mileage was 118,000.

- Marietta, OH, USA

The contact owns a 2001 Acura MDX. The contact stated that while driving approximately 10 mph, the gears seized unexpectedly for a brief moment with a loud unusual noise. The failure occurred whenever accelerating from a complete stop. The vehicle was taken to an authorized dealer for diagnosis. The technician stated that the transmission would need to be replaced. In 2006, the vehicle had been repaired under NHTSA campaign id number 04V176000 (power train). The vehicle had not been repaired. The manufacturer was notified of the failure. The failure mileage was unavailable.

- Stockton, CA, USA

The contact owns a 2001 Acura MDX. The contact stated that while driving approximately 30 mph, the transmission suddenly shook violently. The vehicle was taken to a dealer for diagnostic testing. The technician stated that the torque converter needed to be replaced. The manufacturer was made aware of the failure but did not offer any further assistance since the vehicle was not included in any recalls. The vehicle was not repaired. The approximate failure mileage was 82,000 and the current mileage was 93,000. The VIN number was not available.

- Ocean City , NJ, USA

There is a malfunction of the ignition interlock feature. The key can be removed while the transmission is in neutral or drive. The vehicle is at risk of rolling away while unattended.

- Dallas, TX, USA

The contact owns a 2001 Acura MDX. The contact stated that the transmission shuttered while driving 40 mph. The vehicle was taken to an authorized dealer and the contact was informed that the torque converter or the entire transmission needed to be replaced. The vehicle was not repaired. The failure had since recurred whenever the vehicle was driven at 40 mph. The manufacturer was made aware of the failure and offered no assistance. The failure mileage was 70,000.

- Scottsdale, AZ, USA

Tranmission failure caused by plugged fluid cooler in radiator. Following occasional undiagnosed high transmission temperature fluid warnings when towing a trailer, car shifted unexpectedly into 2nd gear at highway speeds. Just prior, shifting had become slightly erratic, including sharp engagement above idle when pulling away. Erratic behavior was noticeable, but not disconcerting. Once the transmission started shifting into 2nd gear at highway speeds, the vehicle was slowed, and pulled off the highway briefly to cool. Upon restarting, erratic shifting continued. Trip completed by holding car in 2nd gear. Vehicle operated normally next morning driving to shop. Diagnosis was computer unable to determine what gear transmission was in. Shop performed complete transmission overhaul. Car then operated normally - until trailer towing again attempted. Trailer had been towed with indetical loading for some 6+ years without problems, including mountain passes in 3rd gear. Now when towing transmission overheated without warning in cold weather, including over-temperature light, & transmission fluid spraying out, wetting the underside of the car & exhaust system, creating smoke cloud. Repeated attempts to fix were unsuccessful until transmission shop finally found fluid cooler integral to the radiator plugged solid, allowing no fluid flow through that cooler or the factory-installed towing package cooler. Warning! if you have an older Acura that experiences transmission fluid overheating, radiator replacement is likely needed. It is likely that the overheating hastened the failure of the transmission. The severe deceleration of the vehicle when downshifting on its own into 2nd gear at highway speed could easily have resulted in a serious accident. Transmission problems are common with this model of vehicle. I am surprised that Honda has not done something about it.

- Livermore, CA, USA

Transmission failure caused by plugged fluid cooler in radiator.following occasional undiagnosed high transmission temperature fluid warnings when towing a trailer, car shifted unexpectedly into 2nd gear at highway speeds. Just prior, shifting had become slightly erratic, including sharp engagement above idle when pulling away. Erratic behavior was noticeable, but not disconcerting. Once the transmission started shifting into 2nd gear at highway speeds, the vehicle was slowed, and pulled off the highway briefly to cool. Upon restarting, erratic shifting continued. Trip completed by holding car in 2nd gear. Vehicle operated normally next morning driving to shop. Diagnosis was computer unable to determine what gear transmission was in. Shop performed complete transmission overhaul. Car then operated normally - until trailer towing again attempted. Trailer had been towed with indetical loading for some 6+ years without problems, including mountain passes in 3rd gear. Now when towing transmission overheated without warning in cold weather, including over-temperature light, & transmission fluid spraying out, wetting the underside of the car & exhaust system, creating smoke cloud. Repeated attempts to fix were unsuccessful until transmission shop finally found fluid cooler integral to the radiator plugged solid, allowing no fluid flow through that cooler or the factory-installed towing package cooler. Warning! if you have an older Acura that experiences transmission fluid overheating, radiator replacement is likely needed. It is likely that the overheating hastened the failure of the transmission. The severe deceleration of the vehicle when downshifting on its own into 2nd gear at highway speed could easily have resulted in a serious accident. Transmission problems are common with this model of vehicle. I am surprised that Honda has not done something about it.

- Livermore, CA, USA

RPM's run high and then sudden engine cut off; in addition, a shudder or vibration develops while driving at speeds between 35 and 40 mph. Acura stated a failed automatic transmission torque converter. It is recommend replacing the torque converter and installing an updated powertrain control module (PCM) to correct this concern. There are no check engine lights or codes at this time. Transmission was replaced at 140,000 previously.

- Newport Bch, CA, USA

I own 2001 Acura MDX and my daughter is the primary driver. She stated that while driving down with her four month infant the car began to jump in a jerking motion at 35 mph. The gear light started to blink repeatedly and the check engine light came on. While pulling off the road the vehicle was skipping before came to a complete stop trying to make it home, the vehicle slowly sped up and started to jerk and skip again and then started back into reverse. It was taken to a local repair shop and was told that the vehicle had a transmission failure and it was recalled the same problem. As the second owner of the vehicle, I was not aware of the recall so I did some research and found out that other owners are still having problem even with the recall so call to be fixed the defect problems. I called the dealer( provided VIN) to verify my vehicle was taken in for the recall and was told it was taken in and "inspected" and not further information what else was done. The dealer gave me an over the phone estimate for repair cost of $5500. I requested a hard copy via email and they sent me an estimate for $6581.37 to replace the transmission. I called America Honda co on several occasion to get more information about the recall and to find out what exactly done to the vehicle and all they are telling me that my vehicle was fixed during the recall and they have no information on what was fixed or done to the vehicle and that I was responsible for the repair cost. I told America Honda that I was calling for recall information and they were more concern about who were responsible repair cost. During my research I learn this incident with my vehicle is still a safety issue and luckily no one was hurt and no fatality yet. This is my complaint about my Acura MDX still dangerous even as older luxury vehicle.

- Wilmington, NC, USA

My 2001 MDX has been having this issue for over 2 years. It happens only sometimes but usually when accelerating from 2nd to 3rd gear. It makes a shuddering sound and then the rpms go up and it will not accelerate. You have to then stop or slow down to make it go in a lower gear. Sometimes this will happen 2 to 4 times a drive and sometimes will go days without happening. Mechanic thought it to be transmission issue and said drive it until it stops. However...after reading hundreds of complaints online...it appears that individuals have fixed the tranny or torque converter only to have the problem soon reappear. I am hesitant to replace tranny/trans as I have 163,000 miles on it and do not want to replace these items if they won't fix the problem. Many, many complaints of the exact same thing all over the web. Honda should be made to address this issue and see what the problem is! I am the original owner...bought it new in 2000. Have taken good care of it and performed scheduled maintenance. Just want to know what the issue really is before I spend $3000 to $4000 dollars to fix it. Other than this....love the vehicle! please look into this issue!!

- O Fallon , IL, USA

We have a 2001 Acura MDX which has developed a "speed bump" shudder at around 30 mph. The Acura dealer didn't mention that this is a recurring problem as I found out at this link --- townhall-talk.edmunds.com/webx?14@@.F1775eb/461 --- there are many, many people on this forum discussing this same problem. It appears that this problem is widespread and common. Acura's way of fixing the issue was to give us 15% off of a new transmission which is not a very friendly way of fixing a problem which has apparently been in the car's dna since it was built. We then got a software update letter in November of this year from Acura for this same problem for a 2005 MDX which we no longer own. One of the key lines in the letter is "this (fix) can help prevent your transmission from being damaged." Wow --- will it take a failed transmission and the death of a family as with the Toyota debacle to get them to act responsibly and do a voluntary recall on all Mdxs??!!

- Lake Forest, IL, USA

We purchased a 2001 Acura MDX, used, for our 18 year old son. Within 9 months, it began shifting poorly. Of course, with a young driver, he didn't know what was going on. Just by happenstance, we were taking it around for tires, oil change, etc. They pulled the tranny dipstick and said 'you're tranny's shot'. we had it towed back to the car lot service department, where they confirmed. Then, luckily, we were at just under 122,000 miles, which is where my extended warranty would have expired! it was replaced under that warranty, with my only having to come out of pocket just over $700, which I paid for betterment B/C I elected to get a brand new transmission, rather than a used one with almost as many miles on it as the original! I have looked and asked around and I am not able to confirm that there is, indeed, a recall on the tranny itself, just on the converter, which was not replaced in my circumstance. But, if someone knows different or learns about a recall later, please post!

- Denver, CO, USA