2019 Acura Rdx

On July 12, 2025 my husband, the driver, and myself, owner of the vehicle and passenger this day, were driving on the freeway at approximately 7:00am in the middle lanes of the freeway. Without any codes or warnings beforehand, we heard the car make alarming beeps and automatically loss all power to the engine while traveling at highway speeds. This situation put my husband and my lives at risk and in a dangerous situation as there was traffic on a busy freeway and lost all power to the vehicle and made even maneuvering off the freeway a dangerous action as we had no warning beforehand there was something wrong. My husband was able to get us safely out of harms way. After being diagnosed at a mechanic, it turns out this problem happened due to a cracked cylinder head and had no previous warnings of an issue and no warning lights on the vehicle alerting to a problem, I will have the cylinder head in my possession and the mechanic I took my vehicle stated it cannot be ruled out this could be a manufacturer’s or casting defect. I tried contacting Acura Corporation about this situation but was told that since I did not take it to a dealership and have a certified tech look at my vehicle, there will be no case and no type of remedy or reimbursement for this situation.

The auto-stop feature on my 2019 Acura RDX has resulted in my car abruptly shutting down twice now -- today it happened when I slowed to a stop at an intersection. Basically, rather than just shutting the engine off while idling, it shuts of the electrical (dashboard and infotainment -- all systems) and engine and then immediately restarts with the car in Park. There was no warning sound or light prior to the car turning off and restarting. Obviously, it is very dangerous for a car to turn off unexpectedly, and I'm thankful that I was braking to a stop at a red light and had time for the engine to turn back on, and to put car back in Drive.

I started driving on the freeway for a few miles in the rain and suddenly started to hear a low rumble/rattling sound from the engine area. The car began to cycle through error messages for every one of the electronic safety systems (Brake system, vehicle stability assist system, electric power steering system, adaptive cruise control system, collision mitigation braking, & road departure mitigation) The car then began to lose drive power (wouldn’t maintain/increase speed when pressing the gas pedal). I moved over to the furthest right lane/slow lane and continued to lose propulsion from the gas pedal. Being forced to such a slow speed on the freeway in inclement weather was very unsafe for me and my wife who was in the car with me. I had to drive on the shoulder in order to exit the freeway and the engine rattle got increasingly louder and worse sounding. I pulled into a parking lot and the car was not drivable. AAA tow to a AAA certified mechanic repair shop and was told that there was metal debris in the oil pan and oil filter which was signs a faulty engine components that has now destroyed the motor. I’m currently without the RDX and being told it is in need of a whole new motor.

Near the first of the year 2024 I received a fuel pump recall notice for my 2019 Acura RDX. To date, no parts for addressing this issue have been available and no timeline has been made available as to when parts would be available. I am planning my annual trip to the Eastern Sierra in early September where no Acura dealer is available nearby. Should the fuel pump fail during that trip it would be a significant inconvenience for me, including interruption of medical appointments, room and board expenses, pet sitting expenses, etc., as I have been told by Honda that in such an emergency situation the car would have to be towed to the nearest dealership, with the part being specially ordered which would take 2 weeks and that I may be responsible for my room and board, and other costs during that period. I find this behavior to be outrageous. Additionally I have been told by my local dealer that it is not possible to determine possible failure beforehand as either it is working or it has failed. This is totally opposite from what I was told by Honda which was to schedule an appointment with a dealer to determine the status of the fuel pump so that they could special order one for replacement if it demonstrated potential failure. This entire issue reeks of poor and ineffective management of this situation by Honda, likely putting costs over safety putting me at substantial risk for this trip that was planned a year ago and likely will cost me my deposit and access privileges if canceled. As such, I am requesting that NHTSA hold Honda/Acura accountable for this disgraceful behavior, putting owners of their vehicles at substantial risk, and demand that they explore and take immediate actions to resolve the parts shortage in a reasonable amount of time.

The contact owns a 2019 Acura RDX. While the contact’s wife was driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that several unknown warning lights illuminated, and the engine seized. The contact's wife restarted the vehicle, and the vehicle was driven to the residence. The vehicle was taken to an independent mechanic; however, the failure was not duplicated. The vehicle was not repaired. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The contact was advised to take the vehicle to the dealer for diagnostic testing. Additionally, the contact was referred to the NHTSA Hotline to report the failure. The failure mileage was unknown.

My vehicle stopped in the middle of the road as I took exit from the highway. I was almost rear ended as I was entering the parking lot .The vehicle just stalled. I took it the Acura Dealership for fix and they have not taken care of recall issue. I am being asked to spend money on fixing other electrical errors first before they fix the recall on my vehicle.

Transmission intermittently gets stuck in a gear while driving and will not shift until car is powered off and on again. Brake system, LKA, power steering, vehicle stability/traction control, hill assist, cruise control, collision mitigation, and road departure mitigation intermittently stop working and error. Infotainment and audio intermittently error or get stuck on after powering off vehicle. Trunk randomly opens when no one is in range of the vehicle. Horn randomly sounds for approximately 30 seconds on hot days after vehicle is stopped. Engine cylinder heads, transmission, and horns have been replaced without resolution. MOST bus system has been replaced twice without resolution. All issues have been recorded on video and documented with the local Acura dealer and Acura Client Relations, but neither has been willing to help reach a resolution.

I was driving on the highway and it was raining. I tried to pass another car so I started to accelerate. But during my attempt to accelerate, my 2019 Acura RDX would not respond to throttle response. So I slowly started to loose speed the car. The engine warning light started to flash and the car came to a stop on a dangerous road construction area with no medians. I had to turn on my hazards and wait ON THE ROAD at night. I quickly turned off the engine and tried to turn the engine on again. When I turned the engine on it no error codes were shown and the check engine light was gone. I started to drive again and was able to get to a service road. After a while I decided to try to keep driving so I could get home and when I was merging into the highway, it happened again. The same situation, I was accelerating when my engine decided to stop accelerating and flash the check engine light (it didn’t stall but it wouldn’t respond to throttle response). I stopped on the side of the road and turned the engine off before turning it on again. Again the check engine light was not on, and the car acted like nothing happened. It seems like accelerating to higher speed in the rain is a huge safety issue…

My car has been shaking on acceleration but no engine light or any warning popped up. When I called an Acura dealership, they said they would have trouble diagnosing the problem without a light on. A few days later, while accelerating on the highway, my car started shaking violently and lost power. The engine light started flashing. I could have gotten into an accident because I could no longer accelerate on the highway. I had to slowly pull off to a safe stop. This could have been a dangerous and life-threatening situation. Someone could have crashed into me behind me and I could not quickly get into a safe area. I brought it to an Acura dealership and they could not find anything. The engine light had turned off. Though, when I took the car again, the car was still shaking on acceleration. I was afraid to drive at normal speeds since it is extremely safe. I took it to another personal mechanic and he was able to reproduce the problem. He saw there is a service bulletin out for just this problem. The possible cause is “humid air within the intake tract May condense and accumulate excessive moisture during steady driving.” I would have to replace the intercooler system and get the PGM-Fl software updated. This is a safety issue, and Acura has not released any recalls on this. The dealerships are also saying it will not be covered by warranty for me.