Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
01201200312/01/200310014347S/m fix: a/t (automatic transmission) dtc (diagnostic trouble code) p0848 or p0873 *sc04/29/2005
01201200312/01/200310014344Atf (automatic transmission fluid) leaks from cooler line banjo bolt. *sc04/29/2005
POWER TRAIN - AUTOMATIC TRANSMISSION
0116200501/01/200510014766P1706 a/t switch short or open. *eh05/09/2005
1001200410/01/200410013911A/t solenoid replacement criteria. *nm04/27/2005
90409/16/200410013745Automatic transmission solenoid replacement criteria. acura tech line summary for dealer distribution. *tt04/26/2005
0401200404/01/200410009040Repairing atf leaks under warranty. acura. servicenews. april 2004. *tt09/08/2004
0401200404/01/200410009042Don't test-drive with the malfunction indicator lamp or d indicator on. acura. servicenews. april 2004. *tt09/08/2004
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
0600402/02/200610020141Update pcm with transmission replacement. *tt07/26/2006
12160312/16/200310005360Letter to acura service manager regarding an emissions recall campaign. the pcm does not perform an evap control system test when malfunction is detected in the fuel level sensor circuit. because of this, the vehicle does not meet state a02/24/2004
POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER
0600306/09/200710022468Torque converter shudder or vibration between 35 and 40 mph. *kb08/15/2007
POWER TRAIN - DRIVELINE - DRIVESHAFT
1001200410/01/200410010926Front wheel knuckle assembly driveshaft with a dealer confirmed complaint of a noisy left or right wheel bearing that makes a growling noise. *eh12/16/2004

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
06/14/201180000
 Tl* the contact owns a 2004 acura mdx. the contact stated that while driving 40 mph, the vehicle made a shuttering vibration noise. the vehicle was taken to the dealer. the technician diagnosed that the torque converter was defective and needed to be replaced. the manufacturer was made aware of the failure. the vehicle was not repaired. the vin was not available. the failure mileage was 80,000 and the current mileage was 90,000.
06/14/201180000
 Tl - the contact owns a 2004 acura mdx. the contact stated that while driving 40 mph, the vehicle made a shuttering vibration noise. the vehicle was taken to the dealer. the technician diagnosed that the torque converter was defective and needed to be replaced. the manufacturer was made aware of the failure. the vehicle was not repaired. the vin was not available. the failure mileage was 80,000 and the current mileage was 90,000. mah
06/14/201180000
 Tl - the contact owns a 2004 acura mdx. the contact stated that while driving 40 mph, the vehicle started to make a shuttering vibration noise. the vehicle was taken to the dealer. the technician diagnosed that the torque converter was defective and needed to be replaced. the manufacturer was made aware of the failure but did not offer any assistance since the vehicle was not included in any recalls. the vehicle was not repaired. the vin was not available. the failure mileage was 80,000 and the current mileage was 90,000. pm
12/01/2010800001
 Vehicle develops vibration and shutter in transmission/drivetrain at approximately 30mph along with fluctuations in rpms. also, torque converter feels semi-locked at idle when in drive shortly after starting causing rough idle and stalls, and hesitation upon initial acceleration. *tr
12/01/201080000
 Vehicle develops vibration and shutter in transmission/drivetrain at approximately 30mph along with fluctuations in rpms. also, torque converter feels semi-locked at idle when in drive shortly after starting causing rough idle and stalls, and hesitation upon initial acceleration.
11/01/2011700001
 My car makes a grinding noise and vibrates when i am accelerating and hit 30-35 mph. *tr
01/20/2012103278
 I was driving my car about 35 mph and the transmission started slipping. i pulled over to the side of the road and had the car towed. the radiator fluid had leaked into the transmission, initially i had the radiator replaced and had the contaminated fluid flushed and replaced several times. i drove the car for several days thinking that had taken care of the problem- it did not!! i had to have the transmission replaced at 103,764 miles. the total cost to me for both repairs was $4519.09. now i am finding out that has been a problem and i feel that acura should have recalled all of the 2004 acuras and should pay or in the very least help with the cost of the repairs.
06/05/2012103000
 Internal leak in radiator causing a leak of coolant to transmission fluid and vice versa, damaging transmission and rendering car not drivable within moments.
01/20/2012103278
 I was driving my car about 35 mph and the transmission started slipping. i pulled over to the side of the road and had the car towed. the radiator fluid had leaked into the transmission, initially i had the radiator replaced and had the contaminated fluid flushed and replaced several times. i drove the car for several days thinking that had taken care of the problem- it did not!! i had to have the transmission replaced at 103,764 miles. the total cost to me for both repairs was $4519.09. now i am finding out that has been a problem and i feel that acura should have recalled all of the 2004 acuras and should pay or in the very least help with the cost of the repairs.
06/05/2012103000
 Internal leak in radiator causing a leak of coolant to transmission fluid and vice versa, damaging transmission and rendering car not drivable within moments.
06/02/2012137000
 I was told my radiator bladder exploded causing all fluids to mix, thus i now need a new radiator and a new transmission, cost of repair is $4600. my 04 mdx has 137k this should not happen, there are numerous cases of this same issue all over the internet acura forums, why has there not been a recall on this issue, there is clearly an issue with the radiators. i need to have the radiator replaced, all fluids drained and then flushed 5-8 times to ensure all the contamination is gone, then new fluids put back in along with a replacement transmission. there has to be numerous complaints about this, please help,
10/04/201178000
 There is a shuddering noise / vibration coming from the engine compartment at speeds between 25-45 mph.
12/22/201190000
 Tl* the contact owns a 2004 acura mdx. the contact was traveling 50 mph when the transmission exhibited a grinding sound as the vehicle independently decelerated and came to a stop. the contact did not have the vehicle inspected. the failure and the current mileages were 90,000.
10/04/201178000
 There is a shuddering noise / vibration coming from the engine compartment at speeds between 25-45 mph.
12/22/201190000
 Tl* the contact owns a 2004 acura mdx. the contact was traveling 50 mph when the transmission exhibited a grinding sound as the vehicle independently decelerated and came to a stop. the contact did not have the vehicle inspected. the failure and the current mileages were 90,000.
12/22/201190000
 Tl- the contact owns a 2004 acura mdx. the contact stated that while traveling 50 mph the transmission started making a grinding sound and the vehicle started to slow down and eventually came to a stop. the contact did not have the vehicle inspected. the contact feels this is manufacturer defect. the failure mileage and current mileages were 90,000.rl
09/23/2011166900
 Major issues with my transmission shuddering and vibrating on my 2004 acura mdx. had honda review the vehicle was told i needed to replace transmission and torque converter and that this was a known issue . called acura and now i'm here......
06/01/2011100000
 Another 2004 mdx transmission issue.jutter occuring between the speeds of 25-45 mph.dealer claims this is not under warranty any longer(100,000 miles on car) and there have been very few complaints on this problem.after taking the issue of needing a new transmission to corporate,i was told they would cover only a portion of the cost. my portion would be 2500.00. this is absurd. acura knows full well that a problem exists and should stand by their vehicles. they have certainly lost me as a three time buyer of their vehicles.
07/06/2011105000
 Shuddering in transmission between 35mph and 45mph and lack of power. took it ot the dealer and they said honda has a service bulletin on it.
07/06/201085676
 After backing out of my driveway and shifting the car into d5 the transmission would not engage and was completely slipping. after shifting to a lower gear i was able to get the car to drive and then shifted back into d5. upon slowing and then trying to accelerate again the transmission again completely failed to engage and hat to be shifted into the lowest gear to re-engage the transmission. also, on several occasions while trying to pass other vehicles the transmission would again completely slip. also at points where i would enter traffic from a side street or parking lot as i have tried to enter traffic at an opening the transmission would fail to engage which has created very dangerous situations where we have almost been in a very bad accident.
08/08/201075000
 2004 acura mdx torque converter issue. i can feel/hear the vibration/shudder/grinding between 20-50 mph while maintaining the steady speed with light load. the same issue happened once when the vehicle was at around 45000 miles. the dealer replaced the torque converter under warranty. however, the same issue came back at around 75000 miles until now at 93000 miles. it was only noticable at around 30 mph, but now can be noticed between 20 and 50 mph.
08/18/2009715001
 I went to drug a store and was in a hurry when i parked the vehicle. i left the car in drive as i was in a hurry and didn't notice. i was able to turn off the ignition and remove the key, which didn't register to me as a problem at the time. when i came out of the store, i found the vehicle had rolled backwards and struck another parked vehicle, causing approximately $2200 in damage to the other vehicle. minimal to no damage to my vehicle. when i got home i was able to duplicate this situation. *tr
POWER TRAIN - AUTOMATIC TRANSMISSION
06/15/201075000
 Transmission/torque converter vibration at 35-45mph. started at 70,000 miles. forced to replace transmission, acura should be responsible for this failure.
08/06/201179000
 Torque converter failed due to faulty equipment. this caused a total transmission replacement per acura.
01/01/200778946
 Our 2004 acura appears to be very sluggish and slow to accelerate in 35-40 miles range and was pulling to the right. so, we took it to acura dealership in los gatos, california on 1/27/2009 for further investigation. that's when the dealer recommended a new transmission without any mention of the existing recalls on the 2004 acura mdx transmission problems.
11/30/201096000
 Driving home after purchasing used 2004 acura mdx the vehicle was making a noticeable shutter/grinding noise between 30-45 mph under light acceleration. dealership diagnosed faulty torque converter and replaced at no cost. no approximately 11,000 miles later, the problem has came back with bad torque converter. internet search reveals this problem is common with these vehicles. would not have purchased if known issues before. these is an obvious design flaw in the power train.
06/20/2011111000
 I have an acura 2004 mdx. 111,000 miles. serviced as directed. just replaced the transmission and the torque converter. this is an issue that is clearly a problem. acura had recalls but claimed to have fixed the issue. there is no way a properly maintained car should have to have a complete transmission overhaul done. the mainshaft had to be replaced as well. the mechanics that did the work are ex acura mechanics. they confirmed that this was the exact kins of problem they replaced for years on mdx's. i had to have an entire new transmission with main shaft and torque converter replaced. this cost me $3,558.02. this is wrong. a car, especially a high end car like acura, should not have to have an entire transmission replaced at 111k miles. it was unethical of acura to not advise me of this history before purchasing the vehicle.
08/27/201065000
 My 2004 accura mdx has been diagnosed with a torque converter problem at 71,000 miles. when we are at low speeds, 35 - 45 mph the transmission starts to vibrate as if we are going over railroad tracks. over the past few months the gas miiage has dropped significantly to the point that we are have to fill up twice a week to drive roughly 150 miles. i have read hundreds of complaints from other 2004-2006 mdx owners with this same complaint. some 2004 models have been recalled but not mine. how can they only recall specific vin's and not the entire model year. this is a financial and safety concern, one because the vehicles gas mileage has dropped significantly and the transmission could lock-up or overheat at anytime.
09/01/200754000
 2004 acura mdx, started to shudder/vibrate/grinding noise noticed just after 50k miles. the problem occurs when driving between 25 to 45 miles, trying to coast or decelerate. also observed the sudden hesitation of the vehicle when the shudder occurs. if i put it in d4 (instead of d5) then it doesn't seem to be making the grinding noise/vibration. i have reported the issue around 50k+ mileage to the dealer but dealer said they can't reproduce/identify it. i have complained about the same problem in 2 other visits to the acura dealership, every time they denied the problem. now, at 90k miles i complained about the problem and this time they were able to hear and observe the sound, exactly the same as i have been reporting since it had 50k+ mileage. acura dealer is saying the whole transmission (torque converter) has to be replaced. for a vehicle that costs $40k having transmission issues at 50k mileage is unacceptable. i don't drive it rough and don't neglect the maintenance. there are so many complaints in the online forums on this exact transmission problems. acura/honda customer service is very poor or non-existing, they should be ashamed of such a problematic component in a luxury vehicle.
01/01/2011100100
 A rattling/shuddering/grinding is occuring when accelerating, and only when accelerating, between 30 and 42 mph. it is a result of a failing torque converter. problem only occurs while in d5.
10/14/201063000
 Tl- the contact owns a 2004 acura mdx. the contact took the vehicle in for inspection and was told the transmission was starting to slip. the failure was coming from the rear differential torque converter. the contact took the vehicle to the dealer and was told that this is a known failure that acura has been handling on a case by case basis. the contact spoke with the manufacturer and was told that the transmission was not under warranty and they would not receive any assistance because the contact is not the original owner. the failure mileage was 63,000 and the current mileage was 65,000.rl
11/09/201079000
 The best way to describe the incident is that our vehicle just started to lose power as we were traveling on the highway. then, it just froze. the car would not move. then, it seemed to be allright but it would freeze up again. it was very frightening because there were cars on the highway going 60-65 mph. we were able to make it home and had the car towed to a local repair shop and then to acura garage a day later. we were given no warning of a problem. there was no light to indicate a problem. we were told that the transmission and torque converter needed replaced. we learned that this is an ongoing problem with the acura mdx. we filed a claim with acura. we had a service bulletin. apparently, honda/acura knows of this problem but refuses to do anything about it. we bought our 2004 mdx new. we had all necessary maintenance done on the vehicle. acura wanted our documentation which we provided. they offered to pay half of the repairs. our expense was $2000. i feel that a recall is in order. again, honda/acura knows about this problem with not just the acura but the pilot and the odyssey, as well. our car had 79,000 miles on it when this occured.
07/09/201081000
 2004 acura mdx tansmission failure . 81000 miles with jerky action, smoke in the hood. smell of burnt oil. metal part under the part burnt as liquid. no coverage and 7000 dollar costly replacement. no warrenty.
05/02/201085000
 My 2004 acura mdx has been making a grinding noise (as if going over rumble strips) when driving above 35 mph especially when driving on a curve. the pohanka acura dealership states that the torque converter is faulty. this particular problem is listed numerous times online for the 2004 mdx. acura has not placed a recall apparently because they do not see it as a safety issue. they will not admit to have used a faulty part in building this particular model. highly disappointed with this type of business practice. where is the customer service they rave about? they are asking for over $3k to replace the faulty part. i am going to research some other avenues before i make my final decision.
07/09/201081000
 2004 acura mdx tansmission failure . 81000 miles with jerky action, smoke in the hood. smell of burnt oil. metal part under the part burnt as liquid. no coverage and 7000 dollar costly replacement. no warrenty.
05/02/201085000
 My 2004 acura mdx has been making a grinding noise (as if going over rumble strips) when driving above 35 mph especially when driving on a curve. the pohanka acura dealership states that the torque converter is faulty. this particular problem is listed numerous times online for the 2004 mdx. acura has not placed a recall apparently because they do not see it as a safety issue. they will not admit to have used a faulty part in building this particular model. highly disappointed with this type of business practice. where is the customer service they rave about? they are asking for over $3k to replace the faulty part. i am going to research some other avenues before i make my final decision.
07/19/201088000
 When in d5 driving between 30-45 mph at 1500 rpms the transmission makes a vibration/dull-grinding noise intermittently. it seems to force itself into 5th gear at low-speeds, and then lugs the engine and returns to 3rd or 4th gear after a few seconds. its affects the performance of the engine, and is wearing out the auto-transmission quickly. why isn't there a recall for this issue if its as prevalent as it seems? i wouldn't have purchased the car if i noticed this problem before-hand.
10/01/201065000
 I have a 2004 acura mdx, recently, the torque converter failed (mileage 65000) and this will lead to the transmission failture. i found numerous mdx owners complain this problems. so acura should have a recall for this and extend the warranty.
09/19/201070000
 2004 acura mdx torque convertor failed at 70k miles and replaced. at 80 k the vehicle shudders or vibrates between 35 and 40 mph indicating torque convertoer failure again.....
07/10/201096000
 I bought an used acura from a dealer almost two years ago but 3 month ago the vehicle shudders or vibrates between 35 and 40 mph, as per diagnose of acura, they stated torque converter is faulty. however becuase car is not under warranty they dont want to cover problem no matter of the number of complaints of several people on several websites.
09/03/201088300
 My 2004 acura mdx - has safety concerns around shuddering - grinding and vibrating within the vehicle when accelerating beyond 35 mph. there are several forums with hundreds of complaints listed from other various owners of the same model vehicle manufactured in model years 2003 - 2004. this safety issue appears to be an absolute defect that affects the driving performance of the vehicle. the stated repair cost range between $2,500 and $3,000. the dealer is not open to covering any o f the cost of the defect.
08/03/201090000
 2004 acura mdx failed tourque converter, grinding at low speed 10mph-20mph. repairs ongoing car has been at dealer for two weeks. purchased extended warranty from acura and is supposed to be covered but warranty company dragging their feet. current milage 90k no warning or previous problem. also rear main seal on engine being replaced which is immediately adjacent to to converter. estimated cost to repair $3,500.
03/10/201059000
 Sudden transmission failure on the highway. lose all power from the engine to the wheels. has to pull over suddenly in traffic to avoid being hit by other cars traveling at normal speed. the transmissions on honda/acura v6s apparently have systematic problems.
05/18/20081
 All acura mdx have the following problems- and all are very expensive to fix. acura dealers and corporate does not care to listen- because we fools keep buying there cars. - all transmissions will fail very early. cost (4,800) - all motor mounts will fail (1000) - horn, cruise, audio controls will fail. ( 400). plus lots of other issues. *tr
09/14/2009850001
 2004 acura mdx with following issues: horn, cruise,audio not working. transmission bad motor mount bad. *tr
10/02/20043000107/29/2004
 There is a consistent metallic clanging/rumbling at 2,000 rpm in any gear, particularly under part throttle/light load operation. *jb
10/17/20041200109/30/2004
 After shifting out of reverse into drive, the vehicle continued in reverse until the consumer turned off the vehicle and restarted it. dealer was notified. *jb
POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER
06/20/20071
 Torque converter failed, causing a total need for transmission replacement. *ak
POWER TRAIN - AXLE ASSEMBLY
10/02/20043000107/29/2004
 There is a consistent metallic clanging/rumbling at 2,000 rpm in any gear, particularly under part throttle/light load operation. *jb