Lost Acceleration "Limp Mode"

2019 Acura RDX

This problem may be covered under warranty. Ask your Acura dealer.


really awful
Typical Repair Cost:
No data
Average Mileage:
15,650 miles
Total Complaints:
7 complaints

Most Common Solutions:

  1. not sure (7 reports)
Get free help with your lemon!
close ad
2019 Acura RDX engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2019 Acura RDX:

Unsubscribe any time. We don't sell/share your email.

2019 Acura RDX Owner Comments

problem #7

Jul 162021


  • Automatic transmission
  • 29,000 miles


My wife purchased this car about one month prior to this incident. It was presented as a Certified Pre-Owned vehicle.

While traveling on the PA turnpike, the car suddenly went into "limp mode", with only enough power available to maintain about 20 mph. The "check engine" light came on, and we continued at about 20 mph on the shoulder, hoping to come to an exit. After a few minutes and no exit in sight, we stopped and turned off the engine while considering what to do next. When the air inside of the car became uncomfortably warm, I turned on the engine so we would have a/c. Immediately, it became apparent that the engine was working normally: no "check engine" light, plus other positive indications. We resumed our trip, arriving home safely.

Anyone who has traveled on the PA turnpike knows that the shoulders are narrow, and that trailer trucks are often two abreast in the two travel lanes. This was an extremely scary and unpleasant event. We were fortunate that we happened to not be in a stream of fast-moving traffic when this incident occurred.

From other comments on this site, it's evident that this problem is fairly common. We plan to take the car to the selling dealer, but expect that we will effectively be blown off with the explanation that they were unable to reproduce the problem. I'll re-post after we get the car back from the dealer.

- Dick M., Ellicott City, US

problem #6

Feb 012022


  • Automatic transmission
  • 40,481 miles

Driving in Houston on freeway at 60mph and lost power. Pulled over on next exit on shoulder and was almost rear ended by a nut driving fast on shoulder. He jerked back into traffic just in time. Called triple A and cost was $100. Called Gillman Acura and was told towing not covered even when car was under warranty. Called Triple A back and had it towed to Gillman Acura. They replaced inner cooler and updated PGM software. Upon my research, a service bulletin had been issued - however they refuse to issue a Recall.

Does someone need to die due to loss of power in order for their customers to be notified? This is so dangerous when driving in heavy traffic. Waiting to see if I’ll get back towing reimbursed as well as if they will issue a Recall.

- Mary Jo T., Crosby, US

problem #5

Oct 302019

RDX Tvec 2.0L

  • Automatic transmission
  • 14,556 miles

Was on a country road on a weekend trip when we went to pass another vehicle. We were doing about 70 and when we stepped on the gas to pass we suddenly had no power! The car lost acceleration and we were unable to pass, and fortunately there were no cars coming at us. We limped to the shoulder where we sat for a few minutes then tried to start again but we were still only able to go forward at about 15 mph. We called Acura car care and they sent a tow truck to tow us into Dallas. When the tow truck arrived the car started and seemed to run fine but I was afraid to try to drive it any further in case it happened again. It is currently in the shop and they say they say they can find nothing wrong. I do not want the car back until they find out what is wrong with these cars as it is a very dangerous situation!

- Cathy S., Kemp, TX, US

problem #4

Jan 032020

RDX 4 cyl Turbo

  • Automatic transmission
  • 9,200 miles


Have had my brand new 2019 Acura RDX for 15 months and have previously owned three other Acura cars and never experienced this horror before. Was traveling on the freeway in my RDX at about 75 mph in the rain and pulled out to pass a semi. As I accelerated, my speed suddenly dropped to 40 mph (which I now understand is limp mode) even with me pumping the accelerator. A light on the dash was flashing on and off which resembled the shape of an engine and the engine had a different sound that I never heard before. I had a car tailgating me, but I managed to get pulled over on the side of the road and called my dealership, who said if the engine light came on then I needed to call my roadside assistance. THIS IS A SERIOUS SAFETY ISSUE! The night before I passed a car on a TWO-LANE road because it was just going 40. Suppose there was a car coming from the other direction and my car decided to drop to limp mode and I couldn't get past the car beside me??

The dealership has had my car over a week and couldn't recreate the issue--of course not if you're not traveling in the rain at a high rate of speed with wind created from a vehicle in front of you--and said they ran it through tests requested by a special service tech and nothing was amiss. They SPECULATED that maybe some raindrops got on the engine filter deal (can't remember name) so the car thought it was malfunctioning and shut down. So now I don't drive or pass in the rain? They said Acura engineers were working on it. They had one other report of this at their dealership. So I'm reading other reports of this online. Is it occasional lemons? Or is it a design flaw? They want me to take the car back, but I've lost all confidence. Is it playing Russian Roulette? I didn't spend this amount of money for a new car to not have dependability and have to worry about what conditions I'm driving it in and will I be stranded again, or miss a flight, or possibly be killed or injured? Seriously! I imagine it will take a lot of complaints, but eventually they'll have a recall. That will cost them a lot of money, so I'm sure they're trying to keep this a secret. It doesn't help me, though, because I don't even want the car back! THERE IS NO FIX.

- Jennie R., Washington, IN, US

problem #3

Aug 092019

RDX Tech Package

  • Automatic transmission
  • 7,000 miles

This is actually the third time my husband's vehicle went into the limp mode. It is a 2019 and shortly after buying it in 2018, he had two situations on busy city streets. One time it had to be towed to dealership. They did not know what the problem was except "limp mode". We bought two RDX the later part of 2018, and we are not happy that this could be an ongoing problem. The last time was August 9th on the Oklahoma Turner Turnpike. My husband was passing a semi at 80 mph and the car lost power. It was very alarming. Thank goodness we made it to the shoulder without causing a wreck or being hit. He turned the car off and we sat for a little while. Turned it back on and slowly resumed our trip. The check engine light comes on. This is a major safety concern. He just informed me that the Tulsa Acura Dealership cannot find anything wrong with it. Well if we have a crash and are seriously injured or worse........I want this to go on record. This is not the only post in regard to this problem!!!!!

- Brenda W., Bixby, OK, US

problem #2

Jul 292019


  • Automatic transmission
  • 1,100 miles

Brand new car with 1100 miles. Was accelerating onto an on ramp and almost immediately, car went into limp mode and limped at 40 MPH to the next exit. Turned off car and car returned to normal operation. At dealership, P0301 misfire in cylinder 1 was diagnosed. The dealer suggested this could possibly be from bad fuel. I don't think so.

- David T., Wichita, KS, US

problem #1

May 062019


  • Automatic transmission
  • 8,000 miles

I was traveling on a major highway, probably going 65 mph or more, and the moment I accelerated to pass someone, the car suddenly went into what another person reporting here aptly called "limp mode." The car slowed substantially and pressing the gas pedal had no effect. I put on my hazards and somehow made my way to the rightmost lane and then to the nearest exit without killing myself or anyone else. I was baffled, since the car was so new, but assumed that the battery had died somehow. I pulled over on the side of the road in the middle of nowhere and turned off the engine. Before calling AAA, I decided to try to restart the car, to see if the battery had any juice left, or it gave that familiar clicking sounds of a completely dead battery. To my surprise, the car started and worked just fine. Extremely dangerous bug in this car (and I have also experienced all the other bugs related to the ridiculously glitchy infotainment system). Essentially my experience appears to be precisely that of Complainer #6 from Houston.

- Michelle M., Lewisburg, PA, US

Not what you are looking for?