Lost Acceleration "Limp Mode"

2019 Acura RDX

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

10.0

really awful
Typical Repair Cost:
No data
Average Mileage:
6,350 miles
Total Complaints:
4 complaints

Most Common Solutions:

  1. not sure (4 reports)
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2019 Acura RDX Owner Comments

problem #4

Jan 032020

RDX 4 cyl Turbo

  • Automatic transmission
  • 9,200 miles

A D V E R T I S E M E N T S

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

RDX

  • 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

RDX

  • 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

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