On September 6, 2022, at 7:45 AM I was traveling from my home to work in my 2020 Acura RDX. As I was merging on to an interstate in heavy, high-speed traffic, my RDX suddenly lost power and started to decelerate with absolutely no warning at all as high-speed traffic was approaching from behind. My vehicle decelerated to a speed of about 20mph on an interstate in the midst of heavy, high-speed traffic. The malfunction indication light began flashing in the instrument panel. I was able to drive at slow speed of about 15-20 mph, with 4-way lights flashing, until I could exit the interstate. I turned the car off for a few minutes and then was able to proceed. This created an extremely dangerous situation.

- Bellefonte, PA, USA

The contact owns a 2020 Acura RDX. The contact stated that while driving at approximately 70 MPH, the vehicle went into limp mode and experienced unintended deceleration to 5 MPH with the check engine warning light illuminated. The vehicle was towed to the dealer; however, the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 18,986.

- Holden Beach, NC, USA

While driving on I-95 north, the check engine light began flashing on and off. We had been driving in a thunderstorm for approximately 100 miles, when it began flashing. Then suddenly the car began slowing down. There was no response to repeatedly stepping on the gas pedal. As the car slowed down I was able to get over to the shoulder, and put the car in park. Again trying to get a response by stepping on the gas pedal, but there was no response. I shut the engine off, then restarted the car. The car ran fine, after I restarted it. I continued my drive from Florence SC to NY, and then returned from NY to Florida without any further incident.

- Delray Beach, FL, USA

Upon rapid acceleration, pushing the gas pedal down, the engine light started blinking and the car went into limp mode losing all power. This was a serious concern because we had just got off the interstate and if we had been full speed attempting to pass a vehicle, we could have been in a serious accident due to failure of power.

- Hernando, FL, USA

Under heavy acceleration, the vehicle began "bucking" and then lost all power. The check-engine light began flashing. The engine was still running but did not provide power. I Had to pull off the road, shut the engine off and then restart to clear the problem. This has happened twice in two days. The Acura dealer says it is an issue with moisture entering the turbo-charger but did not have any suggestions to correct or prevent this from happening again.

- Frankfort, KY, USA

I was driving at 65 MPH on the highway in the left lane during a rainstorm. Suddenly the engine shuttered and began to shut down. I could not accelerate the engine. The engine light came on and was flashing. I was fortunate enough to maneuver through traffic to the shoulder of the road - sitting there where other drivers would not be expecting to see a car. I turned the car off and sat there in a rainstorm for 15 minutes hoping not to get hit. I started the car and it seemed to work fine for the remained of the trip with no issues or engine light flashing. Very dangerous situation for me - I shutter to think what might have happened if my wife was driving with the kids and this happened. She would make me sell the car today.

- Hilton Head, SC, USA

Last week I was driving the 2020 Acura RDX on the Massachusetts Turnpike during very wet weather. Three hours into a planned four hour drive, while accelerating up a hill, the car power cut out. Engine was running, but no oomph. Check engine light, and other lights, flashing on dashboard. Car kept slowing, and there was no place to pull over at that point on the pike (mile 68). Finally, car made it to crest of hill (at that point going 15 miles an hour in the right hand lane and still slowing), and a pull out spot appeared. Pulled over, but a very harrowing experience. Had the car towed to the closest Acura dealer (this was clearly an issue that would be covered by warranty...). They checked out car, and said that they had seen the same problem before, and that fix was to replace the "intercooler kit", which required a part that was on a long back order. Researching other threads, I find that this has happened to others... and that a "fix" can be to turn off the car, and restart after a few minutes. Car seems to drive fine again... In any case, I later moved the car to the dealer where we bought it, and they had the part in stock. Apparently, when it is very wet and a driver accelerates hard, the old part lets some water enter the turbo charger, at which point the car goes into "limp" mode. Apparently, Acura has an outstanding service bulletin on this issue. The reason for my filing... I think that this a recall issue. I love the car, and am glad that it is fixed (at least, I hope it is!), but this is a very bad problem and should not happen. Any questions, please let me know. But I would encourage Acura to do a formal recall...

- Wayland, MA, USA

This car has 21,000 miles, while accelerating the car lost power and the engine light came on, almost caused a severe crash with semi truck. There are numerous articles post about this exact same problem with 2019 and 2020 Acura RDX and some information indicates it was due to solvents used in the manufacturing process of the in tank fuel pumps. It is more pronounce in warmer climates and rain. Acura needs to issue a recall before people get killed from this deficiency in their product.

- Edmond, OK, USA

While driving, the engine suddenly lost power and started blinking the engine light and went into the "limp mode" mentioned here: https://topclassactions.com/lawsuit-settlements/consumer-products/auto-news/nhtsa-report-2020-acura-rdx-lost-power-while-driving/ I was forced to pull over without power and wait with the engine off until it resumed normal function. This could have caused a crash without the power to drive on the highway.

- Arlington, VA, USA

This is the second complaint I have filed with the NTSB. The transmission in my 2020 Acura RDX feels as if it is slipping. From a complete stop to trying to advance the call forward, the engine will act as if it cannot find first gear and then will "jump". This does not happen all the time but is frequent enough to garner my attention. This problem started immediately after I purchased the car. I have brought it to the attention of the Acura dealer multiple times but the refuse to deal with it because they say the NTSB has not issued any recalls for this particular problem.

- North Venice, FL, USA

While traveling to my dealer on interstate 69 in Indiana, in the rain, I had to accelerate to avoid a conflict with a truck. When I pushed the accelerator to the floor, the Check Engine Light came on and the car went into limp mode. I had to pull to the shoulder and restart the car to continue. The dealer provided me a loaner 2021 Acura RDX, VIN #5J8TC2H5XML023677 with 740 miles on the odometer, which experienced the same phenomena, Check Engine Light coming on in the rain under acceleration, when I was attempting to merge onto Interstate 69 at Illinois road in Indiana. Pulling over to restart the engine allowed me to continue.

- Upland, IN, USA

Driving 70 mph down interstate and all of the sudden the check engine light started flashing and the vehicle lost all power. Had to make an emergency move to the shoulder. The check engine light remained flashing and when car shut off and turned back on the engine light was not on and vehicle operation seemed to turn to normal. Have seen other reports of this specific model of vehicle losing power at highway speeds and is very dangerous situation.

- Northlake, TX, USA

- 2020 Acura RDX Aspec - my 2nd one of this model!!!!! - Tue, 18May2021 - travelling at ~65 mph on the Houston Hardy Toll Road and lost all ability to accelerate and MIL (engine light) came on - I was able to pull over 4 lanes to the right shoulder safely - I turned the car off, waited ~30 seconds and then turned the car back on - I drove to the dealership, Gillman Acura, which is ~21.4 miles, and delivered the car - Gillman Service Rep advised that they were applying the intercooler replacement fix associated with Acura Service Bulletin 20-053 - issued 21Apr2021 - Dealership replaced intercooler, I picked up the car on Thu, 20May2021 - drove ~22 miles home and the very next day, Fri, 21May2021, when i was ~3 blocks from my house, the VSA - vehicle stability assistant light came on - 21May2021 and the car is back at the dealership for repair - The RDX is a rolling death trap and I pray that it doesn't take one or more fatalities and/or serious injuries to Acura owners and/or others before Acura does the right thing - a recall - In Apr2021, I purchased the first 2020 RDX Aspec, VIN: 5J8TC1H6XLL014219, and experience the "limp mode" issue on 4Jul2020 while traveling on I-10 west from Tallahassee to Houston - vehicle had 2.8K miles and experienced limp mode - see NHTSA complaint > 11339164 - Dealership exchanged the first car and now I've experienced "limp mode" with the second car

- Houston, TX, USA

Brand new with 4000 miles. It went limp, stalled and went to neutral while driving, had to stop by the side of the road and restart to reset. And it went limp on highway at 70 mph, continue to decelerate rapidly and did not respond to gas and went limp, engine did not rev up with any amount of gas. It only responded when I set the cruise and hand accelerate that way. Dangerous and scared to drive

- Plano, TX, USA

The contact owns a 2020 Acura Rdx. The contact stated while driving approximately 75 mph in the rain, the vehicle loss motive power and decelerated with the check engine warning light illuminated. The contact guided the vehicle off to the side of the roadway. The vehicle was restarted after several minutes and slowly driven to gas station parking lot. The contact called Acura of columbus (6549 whittlesey blvd, columbus, ga 31909, (706) 576-6700) who diagnosed the failure over the phone, stating that the turbo charger inter cooler system had allowed moisture into the system while it was raining and caused the engine to shutdown. The contact was advised to slowly drive the vehicle around the parking lot once it stopped raining for the moisture to dissipate from the system. The contact was informed that the engine would reset once the inter cooler was clear of moisture. The contact followed the advice and was then able to drive the vehicle back to the residence. The vehicle was taken to Acura columbus (4340 w. dublin granville rd, dublin, oh 43017) to be diagnosed. The contact was informed that the inter cooler kit needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 7,300.

- Columbus, OH, USA

My SUV has been in service over 15 times stemming from electrical issues with the dash harness, multi times for loss of power while driving, loss of infotainment systems, and piping noise coming from the speakers. The loss of power and 'limp mode' has happens 3 times. Once at highway speed after an out of state trip, and twice on my way to work during humid conditions. The electric issues have happened multi times during all driving conditions. I was on my way home from work today, and I started to smell something burning. I worked my way out of the main highway when smoke started pouring out of the ac vents. A few moments later I could see flames coming out of the dash behind the infotainment screen.

- Flower Mound, TX, USA

I purchased a 2020 Rdx a spec package vehicle and almost immediately started experiencing a hesitation or slipping of the transmission sensation. It is intermittent but happens when coming to a complete stop and then trying to pull onto street, freeway or traffic from a complete stop. I have had the vehicle into the dealership but they refuse to acknowledge anything because the manufacturer has not posted any vehicle problems or recalls. The dealership says there is nothing wrong with car based on the "computer checks" run on the vehicle. The problem is becoming increasingly worse and I am becoming concerned about an accident because of the hesitation caused when trying to pull into traffic.

- North Venice, FL, USA

I was driving on a freeway at 4:30am when I suddenly lost all power from the engine and it went into limp mode. The check engine light was flashing and fortunately there was no traffic so I was able to pull off the road. I shut off the car and sat for a few minutes and when I restarted the car everything was working fine. I had a 12 hour drive ahead of me and I never stopped thinking of how that could have ended up so badly. Later that day as I was driving through atlanta I shuddered to think what could have happened if this lack of propulsion had occurred. My guess, quite bluntly, is that I probably would have been killed. I have read online of this problem happening to a significant number of other people. Acura needs to be held accountable before someone is killed!

- Plainwell, MI, USA

November 22, 2020 10:15 pm route 287 (in route to Edison rte 1 exit). 2020 Acura Rdx A-spec - a few minutes after accelerating safely onto a merging lane (with trucks) the engine performance light starts blinking and car started to slow down almost to a roll. As the truck's headlights got closer, it managed along with several other cars to switch lanes as I turned hazard lights on and steered the car into the shoulder. I turned the car off (hazard lights still on) waited a few minutes and when I turned it back on the engine performance light was off and I was able to drive home. Acura needs to address this before something tragic happens. Car was purchased in June and was under 6700 miles when this happened. It was also serviced with maintenance B a week prior to my trip.

- Colonia, NJ, USA

The contact owns a 2020 Acura Rdx. The contact stated that while accelerating above 50 mph, the vehicle loss motive power and stalled without warning. The contact pulled over and waited for several minutes before restarting the vehicle and, the vehicle operated as intended. Napleton's palm beach Acura (6870 okeechobee blvd, West palm beach, fl 33411, (877)363-2817) was contacted and informed of the failure. The contact was informed that the vehicle needed to be diagnosed. The contact was notified of an unknown tsb related to the failure. The contact was informed to call back in January 2021 for assistance. The manufacturer was made aware of the failure and was informed that the VIN was not subjected to a recall. The manufacturer recommended that the vehicle be diagnosed and the results forwarded to a representative. The contact was provided a case number. The vehicle was not repaired. The approximate failure mileage was 5,300.

- Jacksonville, FL, USA