After driving on secondary roads for an hour, I entered a highway. I was accelerating on the entrance ramp and noticed a car going very slow in the slow lane. I put on my blinker, accelerated more and moved to the middle lane of the highway. The car immediately went into 'limp mode', losing all power and the check engine was blinking. I could not pass the car that was going about 30 mph and had to apply my brakes in the middle of a highway as trucks were bearing down on me. This was terrifying! I was able to pull off to the side and shut down the engine. After 30 seconds I restarted the car and all power was returned with no check engine light. The dealer could find no problem, but Honda needs to fix this before someone gets killed.

- Phillipsburg, NJ, USA

While driving at approx. 75mph one rainy evening the engine lost power, and would not maintain speed. After mitigating oncoming traffic from behind I was able to get over 3 lanes to the shoulder and turn the vehicle off. After restarting the ignition, the vehicle resumed with normal power.

- Shirley, IN, USA

I drive a 2020 Acura Rdx having 1,840 miles. While driving on the highway on two separate occasions (approximately several months apart), my car had suddenly decelerated. My foot was not on the break at all. The car would not accelerate when applying my foot on the accelerator. Fortunately there was still enough forward motion in the car for me to be able to pull over to the side without incident. After a few seconds, I stepped on the accelerator again and the car had returned to normal operation. I brought the car in to the dealership for service. They could not find or duplicate the problem related to my experiences. I gave them copies of my internet searches showing other drivers' complaints having similar "limp mode" experiences. The dealership claimed they are not aware of this problem and of any complaints. I find this response absolutely frustrating because the safety of my family and friends are at stake. For now, I am limiting my driving to what is only necessary until this defect is resolved. I am also considering other options.

- Yonkers, NY, USA

From the day I took delivery of my 2020 Rdx advance in August, I've been completely crazy about it. Now, however, I'm feeling sad and disillusioned, but more importantly, I don't feel 100% safe driving it. Recently, after spending a few weeks in Georgia, we were driving back home to northern Virginia on I-85N in North Carolina. It was and had been raining steadily the entire trip. There was moderate/heavy traffic moving at speeds between 60-75/80 mph. Somewhere just South of charlotte, the car suddenly started slowing down, even though I was pressing the accelerator! it was barely moving in the middle of traffic. The check engine light was blinking and the engine was rattling and sputtering. I immediately turned on the hazards and started crossing the two far right lanes to get over to the narrow shoulder. Terrifying. Fortunately, we were only about a 1/4 mile from an exit. We slowly made it on the shoulder to one of gas stations there. After checking the support section in the app and calling a tech at my home dealership, I shut the car off and let it sit for about 15 minutes. It started and we were able to finish the trip without further incident. We made it home safely, but the remaining six hours of the trip were mentally excruciating. We drove as slowly as safely possible in the right lane. I couldn't get it out of my head that it could happen again at any moment. And, I can't say it hasn't crossed my mind that I won't be able to get over that extended feeling of uncertainty while driving it. At least, not for now. I took it to the dealer on 11/25/19. They said they could not duplicate the issue, and that there were neither error nor fault codes stored. I had been hoping they would give me some explanation and reassurance that everything is fine. I wanted to feel 100% that the car is still safe to drive, but I'm not feeling that now.

- Arlington, VA, USA

The contact owns a 2020 Acura Rdx. While the contact was passing a vehicle accelerating at 45 mph, the vehicle suddenly lost power and the check engine indicator flashed. The vehicle went into limp mode and slowed down to only 10 mph. When the contact pulled over and restarted the vehicle, it operated normally and was able to be driven home. The same failure occurred randomly on an earlier model vehicle. The contact scheduled an appointment with Acura of augusta (1760 gordon hwy, augusta, ga 30904, (706) 737-5200). The manufacturer was not contacted. The failure mileage was 3,400.

- Evans, GA, USA