2018 Acura MDX

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.

Warning lights for Collision Mitigation System, Road Departure Mitigation, Adaptive Cruise Control. Lane Keeping Assistance, Auto High Beam. Features are now disabled causing safety issue. Dealer confirms issues and recommends repairs that have not not been solved by others online. Errors appeared before battery Failure in March 2026. Battery was replaced. Common complaint by many online. Need recall to fix.

The Electric Parking brake system continuously fails (every 3-4 months)

While driving the car, several warning lights turned on all at once, saying that the following components were disabled: Lane Keep Assist, Adaptive Cruise Control, Automatic High Beams, and Collision Mitigation Braking System. Not being able to use these features is more dangerous, not to mention that the warning lights associated with their disabling are distracting (making it likely that, if a more serious warning was flashing, it would not be noticed by the driver) and cannot be turned off without an expensive replacement. Yes, the problem was confirmed by a trusted mechanic (the warning lights will not turn off so it's not hard to confirm), who indicated that the radar camera needed to be replaced. No, the component has not been inspected by others. There was no warning of the problem.

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!

The contact owns a 2018 Acura MDX. The contact received a notification from Lyft regarding NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING). The vehicle was taken to the dealer for the recall repair. The dealer informed the contact that the part to do the recall repair was not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

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.

When trying to accelerate from a stop the car has a noticeable lag in throttle response. 2+ seconds. This does not always happen but is intermittent. Much more often when the engine is colder. This makes a left turn in front of traffic or any move where you need to merge with traffic go from safe to dangerous, this also confuses other drivers as they wonder why you are not moving. Someone who was unfamiliar with my car ended up in the middle of an intersection blocking because they didn’t accelerate. Looking into the problem it seems to be reported quite often and is “normal”. Honda does not see this as a problem and anyone who has “fixed” the problem has used aftermarket parts. The car does not have auto engine stop/start so the car is always running.

Vehicle experiences dangerous throttle delay from a stop. When making left-hand turns across traffic, pressing the accelerator results in no response for 1–2 seconds. Vehicle hesitates while exposed in intersection, creating risk of collision. Issue has been present since low mileage and not resolved by recall repairs.

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.

The paint on the tailgate chipped off

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.

When you press the accelerator pedal there is a significant delay in the pedal response particularly at low speed. As you press accelerator pedal nothing happens for a second or two. Then the vehicles accelerates not a gradual rate but at the rate of where the accelerator pedal is at when the vehicle begins to speed up. This causes sudden and hard acceleration. This delay and or sudden acceleration is dangerous when trying to pull into traffic. The Vehicle is available for inspection upon request. Was brought to dealer and after a very short inspection, was told nothing was wrong. They did do a transmission software update. This did not change anything. This is an issue reported in on-long blogs frequently. No warning lamps to error codes related to this issue according to the dealer. This has been an ongoing issue for as long I have owned the vehicle but gets worse as the vehicle gets older.

This is a complaint about the defective TPMS components in this vehicle. I sent a copy to Acura and Honda Client Relations and to the Dealer (Montano Acura). [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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 (O₂ sensor slow response). I contacted Acura corporate and opened a case. The O₂ 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 O₂ sensor failures were downstream consequences of recall-related engine problems (oil consumption,

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

The front camera failure. Needs replacement. Camera apparently is used for the ACC , lane departure assistance.

Front multipurpose camera is starting to fail intermittently. Multiple warnings pop up (LKAS, Auto High Beam, Forward Collision Warning)

Driver seat slippage/moves.

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.