2017 Acura MDX complaints

Engine completely seized due to connecting rod bearing failure. This happened while driving, and I was stuck in traffic for almost an hour due to the vehicle being inoperable. vehicle was unable to be put in neutral due to a special tool being needed. Technicians from a third-party shop and Acura dealership stated this part does not break very often. The Vin does not fall in the parameters for the recall. The issue started the day prior with the engine, sounding like it needed a tuneup. After conducting the tuneup, the engine seized 20 miles after. The engine had to be completely replaced at the owners expense. Accurate did cover 50% of the replacement engine.

My 2017 Acura MDX has an engine failure due to connecting rod bearing seizure in the 3.5L V6 engine. Recall 23V-751 covered model year 2016-2020 Acura MDX vehicles and mine is a 2017. But, my VIN is not in Honda's recall range. The ODI had apparently received 414 reports of connecting rod bearing failures in the 3.5L V6 engine that are outside of 23V-751. There is now an ODI Resume with number PE25008. See the two linked PDF documents below. [XXX] [XXX] The Acura dealer said that this is definitely the same problem they have seen on vehicles under the recall range. In their computer system where it says "Cause" they wrote "Cylinder 6 spun causing the knocking noise. excessive material in oil pan. if under the rod recall, it would need a long block." I have a screenshot of this if you would like it. My service representative at the dealership texted me the following "The engineer from Acura was here today and our District Manager - the engineer said they will not be expanding the recall on the Acura side. Just thought I'd let you know." I have this text message if you would like a screenshot of it. So, it sounds like Acura will not voluntarily expand the recall. This is going to cost me about $12K to fix. Is the NHTSA ODI investigation still ongoing? When will I know if the VIN range will be expanded as I would like to get reimbursed by Acura for these repairs. Thanks, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Blind spot warning, forward collision warning, lane departure warning, lane keep assistance, and high beam lights keep flashing on dash giving a code of: U3000-49. The dealership quoted me $2000 to fix a faulty front facing camera. Research shows this is happening to thousands of people.

The contact owns a 2017 Acura MDX. The contact stated that while driving at 50 MPH, the transmission system error message displayed. The contact pulled over to the right side of the road and turned off, and attempted to restart the vehicle however, the vehicle failed to respond. A local dealer was contacted. The vehicle was towed to the dealer to be diagnosed, and it was determined that the transmission sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall and suggested that the failure be reported to the NHTSA Hotline. The failure mileage was 92,000.

The contact owns a 2017 Acura MDX. The contact stated that the dealer recommended that the timing belt be replaced. After the timing belt was replaced, there was a ticking sound coming from the vehicle while being started. The sound occurred while driving at various speeds or while the vehicle was idling. The check engine warning light was illuminated while driving approximately 60 MPH. The contact pulled over, turned off, and restarted the vehicle, and the warning light was no longer illuminated. The vehicle was returned to the dealer, who diagnosed that the short block, bearings, and the oil pan needed to be replaced. The dealer recommended that the engine needed to be replaced. The vehicle was not repaired. The contact learned of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The failure mileage was approximately 93,000.

PLEASE SEE ATTACHMENT:

I was stopped, my vehicle brake stopped working after being stopped on a road at a traffic light behind a semi truck. My vehicle crawled slowly forward, it would not stop (like the car wash pace). My brake would not work, I tried putting car in park to stop it moving. It proceeded to ram into the semi in front of me and keep trying to go forward until the light turned green and the semi drove away at that point I was able to drive my car and pull off the road and my brake began to work when I pulled off. It completely stopped working when I was on a busy road and caused the accident. It could have been much worse if I was not stopped already.

2017 Acura Mdx. Earlier this year I suspected something was wrong with the car so we took it to Acura in weir canyon to get it checked out. They figured it was the throttle body so they replaced it and then about 2 weeks later the engine had a catastrophic failure. I was driving the car coming out of the freeway and right before I turned right the engine made a huge noise. We tried asking Acura for goodwill assistance but they did not offer anything at all because I bought the car used. I always took the car for its maintenance while the time I've had it. Acura then quoted me for around an 8 thousand dollar repair and then took it to a mechanic and they said its better to get the whole engine replaced at that point and so I did. I've always had Honda cars my whole life and they have been nothing but good but this was something different. I saw that there was a lawsuit going on and a lot of people has had the same problem with there engine specifically the connecting rod bearing which is the problem my car had.

Engine seized due to failure of the connecting rod bearing. Same issue that is occurring in the recall but our VIN does not fall into the vin codes. Engine needed a complete rebuild. During engine failure, I was in the middle of truck and vehicle would not move even in neutral.

I was driving my vehicle on the highway at 65 MPH when the engine light came on and began blinking- no other issues. I tried to pass a vehicle, and my vehicle would not accelerate, I was less than a mile from work. I called the dealership the same day and was able to take it in. When I called, I explained everything the dealership told me I could either tow it or try to drive it in. I went out to the car later and moved it from one parking lot to another and had no issues and no lights came on alerting something was wrong. Later in the day as I was driving 65 mph again on interstate, just as I was slowing down to get off all of the lights for everything came on and the engine was making a terrible knocking sound. I slowly pulled over and put my hazards on while driving 15/20 mph. I was near the dealership and was able to coast into the repair shop. Was informed the engine needed to be replaced due to a misfire on cylinder 2 and rod knock- most likely rod bearings and crank shaft issue with broken rod. We have an extended warranty so for a used engine found at a salvage yard won't cost much out of pocket with a similar amount of miles. Used engine will have 12K mile warranty/12months. The dealership has the engine- that info can be given upon request.

My 2017 Acura MDX with only 87,000 miles has suffered catastrophic engine failure. The vehicle has been properly maintained and all repairs recommended by the dealership where the performed since it was purchased new. While the dealership has confirmed the engine failure cause is exactly what is feared by the Recall Report 23V-751, Honda has refused to acknowledge their responsibility since my VIN does not fall within their "identified" inventory. The engine is currently at the dealership and will be maintained as evidence for the "to-be-filed" lawsuit that will be required to recover the repair costs. The engine seized while driving and had to maneuver the vehicle to a safe location. Had I been travelling on the highway at the time. the outcome would have been disastrous. The problem is described in detail in Recall Report 23V-251. There were no warning lights or issues other than a clunking sound the night before. I was driving to the dealership at the time the engine failure occurred.

The LKAS and Parking systems will randomly decide to cease functioning and express error messages. The car has not been in an accident.

The camera keep going online/offline in a middle of a highway while I'm on cruise control LKAS, ACC, Camera, and ect warning lights keep coming on.

The contact owns a 2017 Acura MDX. The contact stated that while driving 70 MPH on an interstate, the engine made an abnormal knocking sound, and the vehicle lost motive power. The check engine warning light was illuminated. The contact was able to pull over to the side of the road. The vehicle was able to restart, but the vehicle failed to exceed 40 MPH, and the engine continued to make an abnormal knocking sound while driving. The contact drove to the nearest independent mechanic, where the contact was informed that the vehicle could not be serviced. The contact stated that the failure occurred while driving out of State, which required the contact to stay in a hotel overnight. The vehicle was towed to the dealer, 500 miles away. The dealer determined that the cylinder #3 crankcase bearing had failed, and the engine needed to be replaced. The manufacturer was notified of the failure and offered to pay for the labor, while the contact would pay for the parts. The vehicle was repaired. The contact related the failure to NHTSA Action Number: PE25008 (Engine). The failure mileage was approximately 64,000.

On [XXX], while driving at approximately 50 mph on [XXX], the vehicle experienced a sudden and complete loss of power accompanied by severe shuddering. Multiple warning lights illuminated on the dashboard, including the check engine light. The vehicle would momentarily regain power before failing again. This created a significant safety hazard, as I was unable to maintain speed or accelerate safely in traffic. The vehicle was immediately taken to Team Gillman & then transferred to Sterling McCall Acura located at Houston, TX. The dealership diagnosed a catastrophic internal engine failure, originating from the bottom end, requiring a full engine replacement. The vehicle's mileage at the time of failure was approximately 142,250 miles. This critical failure occurred without any prior warning. I am aware of NHTSA Investigation Number ODI PE25008 regarding faulty connecting rods in certain Acura and Honda vehicles, which can lead to sudden engine failure. While my vehicle's VIN was not included in the initial recall population, its symptoms and failure mode are identical to those described in the investigation. I requested that Acura address this known defect through a goodwill repair, given the clear correlation to an ongoing federal safety investigation. This request was formally denied June 2025. Given that the NHTSA has expanded its investigation to include additional vehicles and model years, including that of my MDX, I am filing this complaint to ensure my vehicle and its

Crank shaft connecting-rod bearing I’m hearing knocking and stalling when driving especially when making a turn. I have been in que since March 2025

The contact owns a 2017 Acura MDX. The contact stated while driving approximately 70 MPH, the vehicle hesitated before losing automotive power. Several unknown warning lights were illuminated. The contact pulled over to the shoulder of the road, and the vehicle was towed to a local independent mechanic to be diagnosed. The contact was informed that the local dealer needed to be contacted for assistance. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 138,000.

I took my car to get an oil change. When I left the dealership, I heard a rattle I turned around he told me to bring it back in the morning. I went back the very next morning and they told me my engine valves needed to be adjusted. It took them from Monday until Thursday to complete the work and when I picked it up on Thursday the same noise was occurring. I left it there, on Monday they asked if I could come ride with a technician on Tuesday. Technician heard the noise stated they will get it done it was the timing change. From Monday-Friday I went to retrieve my car and the same noise nothing change and I called and told. Took it back on Tuesday they told me it was a lower engine rod that I would need to replace my motor, later went to the store and the car never move out of park gear. Got it towed back to Acura and they wouldn’t help me.

I was driving and all of the sudden I hear a pop and total engine failure. I was lucky to be traveling at 45 mph and could coast off the road safely. After the damage occurred the motor would not turn over again. I had it towed to Acura and they told me my motor was locked up and specifically that my camshaft bearing had failed. I asked about the recall and they said my vin was not selected for the damage therefore there was nothing they could do other than replace the motor at my expense. I have yet to repair this vehicle and it has been sitting untouched ever since it was towed back to my home.

Water has entered inner tail light causing it to stop working

Odometer Fraud. The contact purchased a 2017 Acura MDX. The contact stated that upon taking the vehicle to an independent mechanic for engine service, the mechanic discovered that there was a mileage discrepancy with the vehicle. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 135,316, however, the independent mechanic discovered that the actual mileage was 289,471.

I recently took my vehicle in for service due to a noise coming from the oil pan area. Upon further inspection from my mechanic is appears that my vehicle had metal shavings in the oil pan and seems to be related to the connecting rod bearing issue that a recall was issued for. Unfortunately my vehicle was not part of the recall for this issue and perhaps should be included in potential expanded recall. I was told by my mechanic that I would need to either buy a used motor or new motor however my concern with a used motor is that I could potentially have the same issue again and be dealing with engine failure.

The front lane assist camera has failed internally and now the lane assist, forward collision and adaptive cruise control no longer work. This has been a known issue and has happened to other Acura MDXs. The warning lights are now coming on saying the vehicle had a brake system error. It also states that all systems related to this camera are inoperable.

The contact owns a 2017 Acura MDX. The contact stated while driving 30 MPH and depressing the accelerator pedal, the vehicle failed to respond as intended. The contact stated that the failure had occurred on several occasions. There was no warning light illuminated. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was not provided. The vehicle was not repaired. The manufacturer was notified of the failure and opened and immediately closed a case for the failure. The approximate failure mileage was 137,000.

Hi, I have a 2017 Acura MDX. My Transmission Shifts to Neutral Unexpectedly. It happens when I'm driving. Most of the time it shifts back to Drive. Therefore, it never bothered me, it happened since I bough the car. It didn't happen often so I didn't think anything of it. However, lately it started to happen more often. Now when it shifts to Neutral it doesn't want to shift back do Drive. My concern happened when I was on a highway driving in a middle lane. I had to pull over and when it shifts to Neutral. When it shifts to Neutral you can't add gas and the vehicle starts slowing down. I received warning on my dashboard ((P))! - Electric Parking Brake Problem and (transition picture)- Emission System Problem came on. I turned the car off and then on. After, I turned on and Press D or R the car doesn't want to go forward or reverse. I have to turn the car off for about 15 min and then when I turn the car on and press Drive it drives without a problem. Recently, it started to happen more often. I happened to me today. I was on 2 line road on a left lane. My car stated to slow down. I was lucky nobody was on right lane, so I was able to change lanes and then I had to pull over and turn the car off. I waited 5 min turned the car on and it drove. I'm scared that I might not be as lucky as I was and get in an accident when the transmission shifts to neutral. My VIN is not on recall but there is a recall on 2016-2020 Acura MDX with same problem. 16V640/KC2 recall. I already contacte

While travelling at highway speeds, I removed my foot from the accelerator to adjust speed for a lane change. When changing lanes and acceleration was then needed, there was no response from the engine for ~5 seconds. I depressed the accelerator several times with no response, which nearly caused an accident during the lane change. The engine did not stall. Eventually, the engine responded to the accelerator input. This has occurred multiple times under similar circumstances.

On [XXX], while driving from Orlando, FL to Atlanta, GA, I experienced one of the most terrifying moments of my life. I was traveling on the freeway at approximately 80 MPH, in lane 3 or 4, when my vehicle suddenly began to hesitate and lose power without any warning. In that moment, fear and panic took over. Cars were flying past me, and I could feel my truck rapidly decelerating. I immediately turned on my hazard lights and began honking to alert other drivers, praying they would give me space to move over. Thankfully, I was able to carefully navigate across lanes and reach the far-left shoulder. Once I got into the acceleration/deceleration lane, the vehicle suddenly lurched forward and began accelerating again—completely on its own. I knew I couldn't risk staying on the road, so I exited at the next ramp and pulled into a gas station, still shaken. After refueling, I attempted to restart the truck, but it would no longer shift into Drive or Neutral. The truck was stuck in Park and completely inoperable. A roadside mechanic responded to my call for help and made several attempts to restore mobility, but nothing worked. I spent the evening stranded and alone, unsure of what to do next. The following day, [XXX], I had the vehicle towed to Honda South near Atlanta, GA. After inspection, I was informed that the issue was a complete transmission failure. In addition to needing a new transmission, the vehicle also required replacement of critical sub-assembly components, includi

Phone: [XXX] VIN: [XXX] Vehicle : 2017 Acura MDX Dealership: DCH Montclair Acura, Bloomfield NJ 07103 Warranty: Extended Warranty Active Previous Case No: [XXX] Subject : Formal Complaint-Dashboard Errors and Inadequate Warranty Support Dear Acura Client Relations, I am writing to formally file a complaint regarding ongoing dashboard error messages in my 2017 Acura MDX and the poor handling of the situation by both your Customer service and DCH Montclair Acura in Bloomfield, NJ. The errors occur intermittently during my work commute. When I contacted customer service, I was told by Case Manager (Andrew) on [XXX] @ [XXX] pm that nothing could be done unless I brought the vehicle in while the warning lights were actively on. This is unrealistic and dismissive. It is not always possible or safe to divert immediately to a dealership and I do not believe that Acura expects its customers to drive around hoping a warning light stays on long enough to be seen by a technician. I understand that modern vehicles like the MDX store fault codes even after warning lights disappear. That Is the purpose of diagnostic equipment. Denying a warranty repair based on whether a technician witnessed an error live undermines the value of the extended warranty i paid for raises serious concerns about safety and accountability. I plan to visit DCH Montclair and attempt to schedule an appointment in advance. I expect a full diagnostic scan to be performed, with no fee applied unless the issue is clearl

I was driving on the road and an electronic parking error light came up, along with emissions error. I pulled over to the side and I could not start the vehicle and the gears won’t shift

The engine has developed rapidly increasing knocking sound. Acura has been notified and has suggested I get an official diagnosis from dealer. I have done so at a cost of $1,300. The dealer's head mechanic has confirmed that I have an engine failure which exactly resembles the connect rod bearing recall found on the same engine type and of vehicles of the same year. Acura has denied any assistance in resolving this, even after receiving a written opinion from a dealer. I am lucky to have taken the steps to diagnose, prior to failure.

We purchased vehicle in Sept 2020. The vehicle has always had a rough jerk or rough shift when initially moving at stop lights or any stop and as vehicle is accelerated and to shifting to next gear. It is not a smooth transmission shift from initial start to first few gears. Just seems that at any time transmission may fail and vehicles behind may run into it.

The contact owns a 2017 Acura MDX. The contact stated while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. There was no warning light illuminated. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 76,000.

The contact owns a 2017 Acura MDX. The contact stated that while driving 25 MPH, there an abnormal sound coming from the engine. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the connecting rod bearing, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that three years prior the vehicle was diagnosed with connecting road bearing failure. The vehicle was under warranty and the engine was replaced. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure. The failure mileage was approximately 160,000.

While driving down the road we started hearing a knocking sound. All the lights on the dash came on. Vehicle stopped running while driving it to the mechanic. We had to have it towed to the Acura Dealership. They kept it to check it out. Per their report it's a Possible Push Rod Recall. Diagnosis- Spun connecting bearing. There is a recall on this specific issue on this specific Year , make and model. Yet Acura is telling me they will not cover this. The car ran perfectly before this happened, no lamps, no issues. We have been dealing with this since October 17th 2024.

The contact owns a 2017 Acura MDX. The contact stated that while his wife was driving approximately 35 MPH, the check engine warning light was displayed, and the vehicle was driving rough and failed to properly accelerate. The vehicle was slowly driven to the nearby local dealer who examined the engine and discovered metal shavings inside the oil pan. The contact was informed that the engine rod bearings had failed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 111,000.

While driving on the interstate, the engine suddenly lost power and a lot of malfunction indicator lights turned on. Driver was able to pull over without incident. Mechanic reported the engine had failed due to loss of oil pressure. The engine had to be replaced.

Our engine started making a loud knocking noise that was clearly not good. We had a friend who is a mechanic come put it on the computer and he diagnosed that the rocker arm took out some valves or lifters. He looked up the car and found a recall for our make and model (2017 MDX with the 3.5L engine) that matches our exact issue. But the VIN does not appear in the search so our car is not covered by the recall despite it clearly being caused by the defect. I understand that there is an investigation into this that the NHTSA opened and Honda has been pushing for extensions. I was encouraged to add our car to this list to help you all see that the problem is much larger than originally thought. We are in a very tough spot and do not have the $5-10k to replace the engine. If the recall is not expanded soon, our only hope is that we get a goodwill repair. We have requested this, but are waiting to hear back from the dealer. Thank you for looking into this. I’m sure we are not the only people in a tough financial spot being affected by this. We appreciate your efforts to protect consumers!

See attached document for complaint.

My Vehicle intermittently fails to go into "Drive" when pressing the gear shift button. Additionally, various warning messages appear at random, including: Lane Keeping Assist Problem, & Road Departure Mitigation System Problem. I have brought my vehicle to DCH Montclair Acura#709, located at 100 Bloomfield Ave, Verona, NJ 07044, on January 10, 2025, February 18, 2025, and March 13, 2025. Despite these visits and an inspection conducted by my extended warranty provider, the problem continues. On [XXX], while my daughter was a passenger, the vehicle once again failed to shift into drive when pressing the "D" button. This incident, like others before it, occurred without warning and reinforces my growing concern about the safety and reliability of the vehicle. I am now afraid to drive the car, unsure when it might fail again. I respectfully request that Acura take immediate and decisive action to investigate and resolve this issue. If a reliable repair cannot be made, I would like to discuss alternative remedies such as vehicle replacement of buyback under applicable warranties and safety protections

Keyless access unit shorted and triggered alarm and drained the battery

The contact owns a 2017 Acura MDX. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the timing chain. The dealer also observed that the timing chain cover was leaking. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); the VIN was included, but the vehicle was already repaired under recall. The manufacturer was not notified of the failure. The failure mileage was 55,553.

The contact owns a 2017 Acura MDX. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal knocking sound. The contact stated that while driving from a complete stop onto the highway the following day, several unknown warning lights were illuminated, and a message advising to park the vehicle was displayed. The contact stated that while attempting to make a turn to drive back to the residence, the vehicle stalled in the middle of the road. The contact and her children, who were occupying the vehicle, were significantly frightened. The contact was able to restart the vehicle after several attempts; however, the vehicle made an abnormally loud grinding sound. The contact was able to drive back to the residence. The vehicle was towed to the dealer, where it was diagnosed that the engine was damaged due to rod bearing failure. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under warranty or recall. The manufacturer referred the contact to the NHTSA Hotline for assistance in adding the VIN to the recall. The failure mileage was approximately 129,000.

Only had a car for a year no issues, started hearing a knocking noise two days later in the middle of the intersection the car throws all the lights and refuses to move. The engine gives out we take it to the dealership and they confirm that it is the rod bearing issue which is a known issue with ACURA which is currently on recall. We send the issues to ACURA and they are refusing to advocate for us for the fact that this is a KNOWN RECALL ISSUE but even though our car is not vin specific for the recall this issue that we are having is the same issue as the recall. Like it was stated earlier that there was no issues with the car before the engine blew. This is a safety concern of Acura as to why they placed the recall on these make and models in the first place. We have asked for a goodwill recall adjustment as was denied which is also not fair because again an engine does not just give out like that. We are not being taken care of by our manufacturer for a manufacture defect and we know that there is currently a class action lawsuit with Acura for the same issue we are having and they are refusing to do right by people who are purchasing these cars.

Wipers do not dispense water(front or rear) and wipers to not reset to original position when in use. Took it to Acura dealership in 03/20/2024 for a 60,000 factory service and problems started afterwards. On 05/16/2024 I had another service at Fountain Acura dealership and problems persist.

The contact owns a 2017 Acura MDX. The contact stated that while his daughter was driving at approximately 65-70 MPH on the highway, the engine seized after pulling into a parking lot. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The vehicle was towed to an independent mechanic, who determined there was a knocking noise from the underside of the engine. The vehicle was towed to the local dealer, where it was diagnosed that the rod bearing was damaged and was fractured. The dealer informed the contact that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the local dealer and opened a case, confirming there was no open recall on the VIN. The failure mileage was approximately 149,000.

The contact owns a 2017 Acura MDX. The contact stated that while her husband was driving 35 MPH and approaching a stop light, the vehicle lost automotive power and shut off. There was no warning light illuminated. The vehicle was coasted to a stop and towed to a local dealer where the vehicle was diagnosed, and the contact was advised that the rod bearings had failed and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 86,000.

On [XXX] had a problem with my 2017 Acura MDX. Engine had loud knocking sound and major loss of power. Had car towed to Acura of Santa Barbara Ca. Was told they had found #2 rod bearing was bad and would cost over $17000 or more to repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

There are warning lights for all safety modules, The LKAS, Headlight warning system accident prevention system, collision avoidance system etc..

When I stopped in traffic, there are times the gear shifted from drive (D) to neutral (N) by itself. And sometimes the engine shuts off. This problem started last month until now. I brought the car to the dealership for diagnostic tests but according to them, they found no problem with my car. I saw in social media that lots of MDX owners experienced the same problem.

On January 9, 2024 I was driving this car and was hit on the driver's side of my vehicle , other driver at fault. The driver's side door side curtain airbags appropriately deployed. The door itself was crushed, and I had to be cut out of the car. The malfunction was my seat, the driver's seat of the vehicle. It moved as far forward as possible and I was tightly wedged between the steering wheel and the seat. Even if my door had been possible to open, I would not have been able to escape. I was also not able to drive in that position, so the car remained in active traffic for some time. I believe this is a design/manufacturing defect with regard to that seat and potentially other seats in the vehicle. I write at this time, over a year later, with the concern that this design flaw may be present in other Acura / Honda vehicles. I wrote to Acura at the time but they did not seem very interested.