I was stopped at a light and as the light changed to green I began to accelerate to enter the on ramp to 75N. While driving onto the on ramp many warning lights came on as my car shifted into Neutral on its own. I couldn-??t accelerate, switch it back to drive.or depress the break as it was locked. The car stopped and would not move on the entrance ramp to a busy highway. I called 911 because I was almost hit multiple times as I could not move the car. FDOT came to assist and saw that I could not depress the break, remove the emergency break, or get the car to move. After a few minutes we turned the car off and it started back up with no problem. The vehicle had to be towed to the dealer on 3/30/2022. Upon searching on the internet, I saw that this is not a new issue. I could have been killed yesterday while on the phone with 911 on the on ramp to the highway with vehicles approaching at a very high rate of speed and having to slam on their breaks and swerve off the road to avoid hitting me.

- Odessa, FL, USA

On several occasions when auto start/stop is engaged the vehicle will shift into neutral on its own upon restart. The engine will just rev and not go back into drive until you put it in park and then drive again. This has caused us to stall in front of a semi and 2 other vehicles. The dealer has replicated the issue on multiple occasions and is now there for a 3rd time. First 'fix' was charge the battery Second 'fix' was adjust exhaust and transmission valves Third 'fix' is replacing the fuel pump There was a 2019 recall for Acura MDX but this VIN does not show up for that.

- Olathe, KS, USA

When at a red light, I pushed the brake and the auto idle stop feature become engaged. When the light turned green and I lifted my foot off the brake, the car went into neutral and would not move or start. In order to turn the car back on, I needed to put the car in park mode and then restart the car. This is a safety hazard since this happened at a busy intersection, with no warning, and cars needed to go around me. This happened twice before I could bring my car in to get it checked. The Acura Service Department changed our battery.

- Happy Valley, OR, USA

Infotainment system experiences periodic failures causing inability to control climate/temperature controls, communications, navigation, and vehicle settings including safety settings. It occurs when driving in city and on highway regardless of conditions or speed, when stationary, can at times be corrected by pulling off the road and restarting the car, but sometimes it just takes time to resolve. Acura stated this is caused by the connection to the cell phone, but occurs even when no phone is connected to or in the car. This issue is a significant distraction to the drivers attention, and can for exposure to extreme to outside temperatures below freezing and above 95F in high humidity mo summer heat. Multiple attempts to repair the vehicle have failed, arbitration with ncds ruled in my favor for Acura to repair the vehicle which they cannot do, it is a known issue with Acura vehicles and they continue to sell, and there are multiple current class action lawsuits against Acura and their parent Honda motor company for the identical issue with different models from the same model year. My attemepts to trade and sell the vehical have been thwarted by occurances of critical failure of these electronic/computer based systems. I am currently arbitrating Acura (non-legal) for the resolution of these unsafe driving experience.

- O'fallon, MO, USA

While driving at highway speed, there was single "pop" sound that seemed to come from inside the dashboard between the on demand multifunction display (odmd) and the instrument panel. The navi screen then became solid black. After a very short time and while still at highway speed, the navi screen briefly showed the view from the backup camera. After a few seconds both the navi screen and the odmd screen became solid black and remained that way. Then, within seconds, light colored, grayish smoke began flowing out into the vehicle from the cd slot on the odmd. Immediately, there was an odor in the car like that from burning plastic or electrical insulation. As soon as possible the car was pulled off the highway and the engine was turned off. The smoke continued to come out of the cd slot until the engine was turned off, then the smoke stopped coming out. After several minutes the engine was restarted and the car was driven to a safer location.there was no smoke coming from the cd slot after the car was restarted and while driving the car to the dealership for service the next day. An odor like that from an electrical fire remained noticeable in the vehicle. Prior to the event, the driver observed no vehicle warning indications, and both the navi and the odmd appeared to be functioning normally. The cd player was not being used. The dealership service manager advised me that they consulted with Acura engineering personnel, inspected and tested wiring inside the dashboard and have isolated the cause of the problem to "a short in the radio." The dealer says that the odmd and the hard disk drive have been sent to alpine to determine the cause of failure at alpine's request. I have asked the dealership to confirm that the repairs to the vehicle will ensure that this kind of event will not recur.

- Hoover, AL, USA

While driving my 2019 MDX I noticed that the back-up camera was on remaining on, and I could see the road behind by vehicle. I pulled off the road and turned the car off and then restarted thinking this would correct the problem; however it did not correct the problem. I also noticed that the lights that indicate that I am backing up remain on even when the car is in park. Inside of the vehicle, the climate control isn't working. The car appears to be "safe" to drive, with the exception of the distraction from the backup camera remaining on; and, not being able to defrost/defog the windows or warm the car. The Acura dealer in ardmore, pa will be servicing the car on 02-10-2020.

- Lansdowne, PA, USA

The automatic collision mitigation system had a complete 100% lock up of my brakes during a cross of an intersection. Although I was wearing my seatbelt the force of the stop threw my head into the steering wheel. It is a complete miracle that the car behind me did not rear-end me. This system routinely gives false positives when going around corners when you are in the center lane and it beeps and pulses the brakes. This time, the car stopped completely and I hit my head and was lucky to not cause an accident. There should be a way to 100% permanently turn off or Acura needs to fix their software. Too many false positives and actually is less safe with it on.

- Brentwood, TN, USA

While driving approx. 40 mph and slowing to turn into gas station, the car completely turned off. I was unable to put car in neutral or get off of road. Tow truck called and had to be drug onto flatbed. Garage replaced battery and still unable to start. Needed to replace timing belt, tensioner pulley, water pump, engine short block and heads. Car with only 4088 miles, no S/S of issue prior to incident, etc. Garage not sure what caused issue, best guess is manufacture defect in timing belt. I asked to end lease or for new vehicle, but Acura denied. Car will be returned to me despite my concerns.

- Montrose, PA, USA