general problems of the 2018 Acura MDX - part 1

Odometer fraud. The contact purchased a 2018 Acura Mdx. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 85,000. The contact stated that on the day of the purchase; after refueling the vehicle and then attempting to pull out of the gas station, the emissions, check engine, and parking brake warning lights illuminated on the instrument panel. The contact took the vehicle to an auto repair shop, and had the vehicle scanned and then diagnosed, dtc: p0158 (oxygen sensor circuit high voltage, dtc severity 2 of 3, t0159 oxygen sensor circuit slow response (bank2 and sensor 2), and an electric parking brake failure were displayed. The scan indicated that the vehicle was subjected to odometer fraud. The contact reviewed the paperwork and received it at the time of sale and became aware that the mileage stickers, along with other indications that the documentations were false. The contact retrieved a carfax report and discovered that the actual mileage was 225,802. The contact reported the odometer fraud to the police department and was informed that the dealer was known for odometer fraud. The police also informed the contact that there was a case and a warrant already issued.

I was merging into traffic on interstate. The car lagged as if it wasn't getting gas. I pulled over to get out of traffic. Scary situation. Please advise!.

I had a recall done by local Acura dealer, miami doral Acura, where they replaced parts that connected the engine to the car, they are like rods. I recently took the car to a mechanic because I needed to change the timing belt components and he advised me that one of the rods that were replaced failed. This means that the engine was attached by only one rod, the other rod was cut, not connected. I called Acura today reporting the issue with the recall, they gave me a case number 16125924, advising me that some one would get back to me. The same mechanic also advised me that the high pressure fuel pump was not working properly and that my car could stall while driving it and he advised that it would be dangerous to drive it without replacing it. The part he quoted me was around $700. I looked for recalls for this car with this fuel pump issue and found that Acura only recalled some VIN numbers and my car is not one of the VIN numbers recalled. I believe Acura has not recalled all cars involved with the pressure pump. I find it hard to believe that they are not aware of this issue affecting more of the 2018 Mdx model. The recall with the rods failed just a year after they replaced them. I had the rod recall done in 1/25. I cannot drive the car until I have the mechanic replace the high pressure fuel pump and fix the problem with the engine rod recall. Acura needs to be heal accountable and compensate owners that are dealing with the same issue I am.

I want to say that the engine or transmission is faulty. Sometimes while at a complete stop, the car will not advance and tries to stall or lose power. It takes about 2 or 3 seconds to finally go after I push the accelerator pedal almost 3/4 throttle. No it has not been reproduced at the dealer. I took it may of 2024 for the engine recall repair. They said that the repairs should fix the problem but it has maybe even worsened. No warning lamps appear when the problems happen.

When at a complete stop at a stop light or stop sign and ready to press the gas to accelerate, there’s a delay for the car to even start moving. It doesn’t want to go when pressed on. Which can cause the person behind me to hit the back of the car. It nearly came to that. There’s sudden fast movement when accelerating to get the car to move forward. It’s been happening numerous times where the gas pedal isn’t recognizing the acceleration part. I’ve read plenty forums about this issue with this vehicle and still not enough complaints for a recall? can we look into this as this is a safety issue. The car won’t accelerate when you want it to.

I am filing this report regarding my 2018 Acura Mdx that has experienced complete engine failure directly related to the connecting-rod bearing safety recall (NHTSA recall 23v-751) and Acura’s failure to perform the recall when I first reported issues. In 2024, my vehicle began showing engine trouble codes (p0159) and experienced reduced acceleration and check engine light warnings. I contacted Acura corporate and opened a case, explaining that the vehicle was exhibiting symptoms similar to those described in the recall, including engine hesitation and performance issues. I also took the vehicle to Acura of chattanooga on chapman road, where I worked with tara, a service advisor who acknowledged remembering my repeated attempts to get the recall addressed. Despite this, the recall repair was never performed, and I was treated rudely and dismissed each time. Over the past two years, I have made multiple documented attempts to have the recall completed. Each time, Acura failed to take action or stated that parts or authorization were unavailable. In 2025, my vehicle displayed code p0430 (catalyst efficiency below threshold, bank 2) and ultimately suffered complete engine failure. The issues with oil circulation, catalytic converter performance, and acceleration are consistent with the rod bearing defect Acura has acknowledged as part of this recall. Recently, Acura informed me that my recall was “completed,” even though the engine is now inoperable. This is unacceptable, as the recall was meant to prevent this exact type of engine damage, and Acura had two years of opportunity to address the issue before failure occurred. The current situation has left me with a non-functioning engine, significant repair costs, and a serious safety concern that could have been prevented if Acura had honored its recall responsibilities in a timely manner. I am requesting that NHTSA investigate Acura’s handling of this recall and their pattern of delaying or denying recall repairs.

I submit this complaint because my 2018 Acura Mdx, covered under NHTSA recall 23v-751 for connecting-rod bearing defects, has suffered progressive engine damage and final engine failure that I believe was caused by the manufacturer’s recalled defect and by the dealer/manufacturer’s failure to timely perform the recall repair. Timeline & key facts: 2024: vehicle displayed code p0159 (o? sensor slow response). I contacted Acura corporate and opened a case. The o? sensor was replaced under warranty. I continued to report reduced acceleration and intermittent check-engine illumination to the dealer and to Acura corporate. I repeatedly requested that the recall inspection/repair be performed, but the repair was delayed or not scheduled despite the vehicle’s symptoms and my repeated follow-ups. 2024–2025: over the following months I repeatedly requested recall service and documented those requests with the dealer and Acura corporate. On many occasions I was not scheduled for the recall or was told to wait for parts/authorization. I was also treated rudely by dealership staff (identified service advisor: tara at Acura on chapman road), and my case was not escalated appropriately despite my persistence. 2025: vehicle later displayed p0430 (catalyst efficiency below threshold, bank 2), and within [insert timeframe] the engine experienced complete failure requiring immobilization. Dealer notes show an oil-pump leak and catalytic converter symptoms consistent with oil/fuel contamination and bearing-related engine issues. I have service records documenting the sensor replacement, subsequent dx, and the dealer’s findings. Effect: I have been WI/o a vehicle since the engine failure, incurred hotel cancellation charges $116 and other consequential damages. I believe the engine damage was preventable and is directly tied to the acknowledged defect in the recall; the catalyst and o? sensor failures were downstream consequences of recall-related engine problems (oil consumption,.

The contact owned a 2018 Acura Mdx. The contact stated that while driving at 30 mph, the vehicle stalled. There was no warning light illuminated. The vehicle was able to be restarted. The vehicle was taken to several dealers but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

Many times, when I drove the car on the road leaving the stop sign and it lost power or hesitated to go.

While driving at freeway speeds (70–85 mph), I experience a sudden and complete loss of acceleration when pressing the gas pedal fully. The vehicle stops responding to throttle input entirely for 1–2 seconds. To regain power, I must take my foot off the pedal for a moment and then press it again. This has happened multiple times and presents a severe safety hazard when merging, passing, or trying to avoid collisions. •frequency & reproducibility: this has occurred at least 3 times over the past year, under similar conditions. It is intermittent, but consistently happens during high-speed acceleration. •dealership response: I’ve reported the issue to the dealership, but they claim they cannot replicate the problem and do not consider it a concern. No resolution or inspection has been offered beyond a basic check. •why it’s dangerous: this issue could lead to a deadly accident if I’m unable to accelerate in time to avoid a crash. It creates a sudden and unexpected loss of control at highway speeds.

The contact owns a 2018 Acura Mdx. The contact stated that at a rolling stop, he allowed another vehicle to complete a turn. As the contact depressed the accelerator pedal to make a left turn, the vehicle came to an abrupt stop which caused the vehicle to be rear ended by another vehicle. The air bags did not deploy upon impact. No injuries were reported and a police report was not filed. The vehicle was able to driven away from the scene of the accident. The dealer nor the manufacturer had yet to be notified of the failure. The contact's vehicle was included in NHTSA campaign number: 23v751000 (engine and engine cooling) but had yet to be serviced. The vehicle had yet to be diagnosed or repaired. The failure mileage was 98,031.

While accelerating, the vehicle to decelerated rapidly, the gas pedal became unresponsive when pushed down. Numerous warning lights started additionally, the vehicle shifted into neutral while the vehicle was being driven and would not shift out even after stopped. I was on a very busy 6 lane highway going 80 mph in thanksgiving traffic, my wife, 1 year old and 3 year old were in the vehicle. This appears to be a known issue from Honda, please see [xxx], et al. V. American Honda motor company inc. , et al. , case no. [xxx], information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

At 40k miles the connecting rod bearings gave out, car was taken to the shop and bottom end was rebuilt under warranty. At 80k miles the same issue began to start. Cars been in the shop for weeks for the same connecting rod bearing issue.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign number: 23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling); however, parts to do the recall repair were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2018 Acura Mdx. The contact received notifications of NHTSA campaign numbers: 23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling); however, the parts to do the recall repairs were not yet available. The contact stated that occasionally while attempting to accelerate from a stop, the vehicle occasionally stalled while the accelerator pedal was depressed. No warning lights were illuminated. The local dealer was contacted. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000. Parts distribution disconnect.

From a stop, the vehicle will lurch forward after 1 second of acceleration without a change in the amount of pressure on the gas pedal, as if there is a delayed input to the throttle position. This only happens from a complete stop, such as at red lights, stop signs, or in heavy stop and go traffic. On multiple occasions I have almost rear ended the vehicle in front of me as a result of this. There are no warning lamps or error messages displayed in the gauge cluster. I have not been able to have this inspected by any of the Acura dealers in a 25 mile radius, because when I called to make an appointment for the connecting rod bearing recall, the earliest opening was March of 2026.

The contact owns a 2018 Acura Mdx. The contact received notifications of NHTSA campaign numbers: 23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign number: 23v858000 (fuel system, gasoline) and NHTSA campaign number: 23v751000 (engine and engine cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.

I received a letter from Acura in January 2024 regarding the engine crankshaft recall. I have called the two closest Acura dealerships in an attempt to get this fixed. The last that I was informed today by a dealership is "the part is expected to arrive in August, and we are booked out until December". This put me at getting this repair fixed at one year after Acura sent me this letter admitting the crankshaft issue. My vehicle has stalled sporadically while driving for the entire two years that I have owned it. The letter from Acura states that this recall can cause the "rod bearing to prematurely wear and seize, causing engine damage which may cause the engine to run improperly or stall while driving, increasing the risk of fire, crash, or injury. I would like Acura to fix my car or put me and my family in a safe alternative.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign numbers: 23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling) however, the parts to do the recall repairs were not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owned a 2018 Acura Mdx. The contact stated that while the vehicle was parked in a garage there was a sudden odor of smoke. The contact stated upon discovering the smoke the contact noticed fumes and flames coming from the engine compartment. The contact stated the vehicle was unoccupied at the time of the fire. The fire was extinguished by the fire department. A fire department report was filed. A police report was not filed. The dealer was contacted. The vehicle was destroyed. The manufacturer was notified of the failure. The failure mileage was approximately 50,000.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign number: 23v751000 (engine and engine cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign number: 23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling) however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The dealership is refusing to fix the issue citing that the parts will not be available until fall of 2024. My vehicle is unsafe to drive.

February 2024 several issues started to occur with my 2018 Acura awd Mdx. On two occasions I tried to start the vehicle, wouldnt start till the third attempt. I was driving not even 25 miles when the vehicle accelerated. Another occasion I was exiting a parking spot when the vehicle deccelerated, couldnt pick up speed almost crashed into a parked vehicle. I called Acura dealership to report concerns. Spoke to donna tipton. She cut me off stating Acura doesnt have the fuel pump or connecting rod in stock call back in the spring. I called Acura care to report was given a case number and advised to take my vehicle to Acura for priority service based on the issues. The dealership gave me the run around for over a month trying to get an appointment. In the meantime, the issues with the vehicle worsened. I called Acura care they advised to call the dealership trying to get a supervisor. Donna wouldnt get the manager or take my information. I called again April 16th spoke to shawn and was scheduled April 24th. My vehicle was there all day for them to say they didnt experienced any issues and they have no control over the issues im having or the fact Acura won't have parts the fall of 2024. I cannot drive a vehicle with engine issues till fall without being at risk for a crash, injury or death to myself or others. I need my vehicle repaired or replaced immediately. Acura need to expedite this process.

On February 7 at 2:30 I came home, and my car was unable to turn off. I’ll try several times to turn off the car by pressing the on and off button. While driving back to work, the car change gear from being in drive, and it went into neutral while I was driving. I was able to pull over and I was able to turn off the car by pressing the button. The entire dashboard lights came on with all the different symbols . I was able to exit the carr. I told my car to a local repair shop. This was a very frightening experience, especially when I was driving, and the car went into neutral it could’ve been worse.

The contact owns a 2018 Acura Mdx. The contact received notification of NHTSA campaign number: (23v858000 (fuel system, gasoline) and 23v751000 (engine and engine cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.  VIN tool confirms parts not available.  .

The contact owns a 2018 Acura Mdx. The contact stated while driving approximately 40 mph, the vehicle made an abnormal rattling sound. The contact stated that the failure had been recurring intermittently. There was no warning light illuminated. The vehicle was taken to the dealer, where it was test-driven; however, the dealer informed the contact that they could not duplicate the failure. The contact later received notification of NHTSA campaign number: 23v751000 (engine and engine cooling) which she related to the failure; however, the part to do the recall repair was not yet available. Additionally, the contact received notification of NHTSA campaign number: 23v858000 (fuel system, gasoline); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recalls repairs. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000. Parts distribution disconnect.

First it was start knocking under the hood and the car suddenly stop on the freeway at 80 miles an hour. The car lost all the power. We were lucky we didn't get hit by other cars on the freeway.

My 2018 Acura Mdx received an auto engine software update a couple months ago. I took it in "Acura of johnston" in iowa due to a recall notice I received that indicated engine could stall when trying to accelerate or may not restart. After the the software update I was told this should fix the problem and they would only replace the mechanical parts if the software failed; starter motor assembly along with the power relay assembly. I left the dealership and later that day the message "auto engine idle stop system problem" flashed periodically. I called the dealership and spoke to the service department. He explained that wasnt a problem, as it is probably due to outside temperature and the update now has 13 different variables and should be okay. (I didn't buy it) he told me to contact them if it continued. In the past 2 weeks starting towards the end of December 2023 the "auto engine idle stop system problem" message flashes several times during driving with a chine. I called the dealership and they tried to explain away it was due to temperature. I pushed back and reminded him what he told me previously. He then put me on hold and came back and said to bring the car in. I did contact Acura customer care and explained what happened and told them I read the original technician guide that stated if the software did'nt take they would need to replace the parts. I asked this is covered correct? the representative said no because my care has a "rebuild title" and it would be at your cost. I reminded them that their recall stated this as a safety issue. She stated they were only extending the warranty to non "rebuild title owners". I again asked, "despite this being a safety recall by your own company"? she said yes and parts to fix would be my expense. My VIN is 5j8yd4h86jl012115 and has other recalls outstanding and when I asked about those I wasnt re-assured those would be covered.

Honda refuses to inspect my vehicle to determine if it is safe to drive. They say they will not inspect vehicles untill they have the repair parts available. That puts me at risk for driving a defective vehicle and having an accident that could cause property damage and/or death for me and other people. As I do not have the technical expertise to inspect the vehicle myself, I have no choice but to park it until Honda decides to act. I belive that this is unreasonable and constitutes a failure to act timely. They should at least be willing to do the inspection now to determine if the vehicle is safe or not and then do any necessary repairs once the parts are available. They will need to inspect the vehicle eventually anyway, so I am not asking them to do anything extra.

The contact owns a 2018 Acura Mdx. The contact was notified by a relative of NHTSA campaign number: 23v751000 (engine and engine cooling) however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The engien keep stalling, prolem accelerating jurky transmisión and this is the only car I have to go work I take the highway everyday I am cosern that something can happend to me.

We have two stop sale safety recalls on our 2018 Acura Mdx that have gone over a year without being addressed. I have contacted Acura and the dealership multiple times. Acura refers me to the dealer and the dealer refers me to Acura. Apparently there is no accountability for important safety recalls. Would appreciate some help from NHTSA.

Car has two unrepaired recalls. ( please refer to your site)fuel pump is never available, needs to be ordered. Recall related to engine bearings, crankshaft and other essential parts has not been repaired to any Mdx in puerto rico. A year and a half after notifying recall the dealer informs that Acura is developing a tool to diagnose damage. No date to repair situation is available. Permanent damage to engine can be in progress while original warranty expired during waiting period and private extended warranty will soon expire. Possible solution may involve engine replacement, separating engine from transmission, gaskets, seals and other related parts not included in the recall. Both recalls are a safety concern. Your assistance is appreciated. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).