Owner-reported complaints naming the driver-assistance system, filed with NHTSA
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Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2024 Acura MDX submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
Air suspension/vehicle height Brake systems were taken away (adaptive cruise, anti collision and lane mitigation) Yes confirmed by dealer Yes Yes warning lights
Electrical, brake and car acceleration problems.
When cruising or coming off a stop, my car is incapable of accelerating promptly if I am trying to get out of the way or even merge into oncoming traffic on a highway. There is a severe acceleration delay perhaps with the throttle body. I have seen online complaints but the dealership said there has to be an actual recall number to correct this. My car has been in several times to fix this. A computer reset did not work. My car is one year old.
The contact owns a 2024 Acura MDX. The contact stated the messages "Parking Sensor Failure - See Dealer", "Brake Performance Failure" and "Brakes May Be Reduced - See Dealer" were displayed. Additionally, the Forward Collision Avoidance sensor would alert the contact of a potential collision erroneously. The vehicle was taken to the dealer, where the computer systems were reset, and the front bumper sensor was replaced. The contact stated that after the repair, the auto brake hold feature failed to engage upon coming to a stop and releasing the brake pedal, causing the vehicle to roll. The vehicle was taken to a second dealer, Kearny Mesa Acura (5202 Kearny Mesa Rd, San Diego, CA 92111); to be diagnosed, but the cause of the failure could not be determined. The contact also noticed that the wheels were out of alignment. Additionally, the contact stated while driving at various speeds, the vehicle surged forward and felt like the transmission had shifted from 1st to 3rd gear instantly, and the failure recurred while decelerating to come to a stop. The contact stated while driving approximately 5 MPH in a parking lot, the vehicle suddenly felt like the transmission was in 3rd gear. The contact immediately depressed the brake pedal and stopped the vehicle. The vehicle was taken to a third dealer, Acura of Escondido (1502 Auto Park Way N, Escondido, CA 92029) to be diagnosed, but the cause of the failure could not be determined. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failures and a case was filed. The failure mileage was approximately 9,747.
The contact owns a 2024 Acura MDX. The contact stated while driving 55 MPH with the cruise control activated, the vehicle unintendedly decelerated to 6 MPH. The contact pulled over to the shoulder of the roadway, where the vehicle returned to normal functionality. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 7,000.
I was pulling into a friend’s driveway. I had my foot on the brake was barely creeping forward. Without any yellow warning, the car slammed on the brakes for me. It hit the brakes so hard, I had smoke coming out of my front, middle vents and when I got out of the car, it smelled very bad and I had smoke coming from my brakes. There was nothing in front of me. The same incident also happened to my husbands few days earlier while he was pulling into our garage.
On more than several occasions the car has slammed on the breaks for no apparent reason. This has happened multiple times and thr dealer can’t fix the issue because the computer is showing no error. This is a serious concern for me as the last time it occurred a child hit her face on the back of the passenger seat causing her lip to bleed.
I was lightly stepped on the gas coming off a complete stop with no cars in front of me. The automatic breaking came on hard and a sensor flashed to BRAKE as if I was going to hit someone but there was nobody in front of me. The sensor alert system was turned off 15min prior as I had gone through a car wash. This is the first time this has happened but unknown why. Had there been a car behind me, I may have been hit.
Driving to work, about to merge onto the highway when my car beeped at me and several warning messages appeared on my dashboard: "Road departure mitigation system problem. See your dealer.; Low speed braking control problem. See your dealer.; Electric power steering system problem. Steering assist not available. Do not drive.; Collision mitigation braking system problem. See your dealer." Simultaneously, the steering wheel became extremely hard to turn and the car would barely move, even when applying pressure to the gas pedal. I was, very slowly, able to turn my car off of the main road, onto a side street, and eventually into a parking lot. In the parking lot, I turned the car on and off several times but the warning messages returned and the steering wheel was almost impossible to move. I then opened Acura Link and requested a roadside assistance for a tow. After approximately 20 minutes the tow truck showed up. I got out of the car and let the tow truck drive look. The warning messages on the dashboard were gone and the steering wheel was fine. Tow truck driver followed me to my Acura dealership. They have had the car since. Dealership said it was the "Steering Angle Sensor". They are replacing with new. Never had issues before.
Cruise control does not hold speed during transition from downhill coast to uphill acceleration. If set at 70mph on an interstate and car goes down a hill, coasting may slow to 68. When uphill is immediately encountered, speed drops to 64-65mph before finally accelerating to 70. Many trucks get very close and some honk because of the slowdown. Some road rage has been received. Also, throttle lags 0.5-1.0 seconds when transitioning from complete stop. Rear end collision has almost occurred when other drivers proceed to move forward and this car doesn’t move.
This car only has 2500 miles on it. When it was just driven a few weeks in January, 2024, the car would start jerking while driving down the highway going a consistent 55-60 miles per hour. We took it back to the dealer in St. Louis and they told us they were unable to duplicate. We drove it a few more weeks and in February the jerking was more pronounced and more often so we took it back. Again, they said they could find nothing wrong with it. It ran pretty good until mid March when I drove it to Florida for a 6 week break in my wife’s cancer treatment. The car jerked a lot and broke down completely 3 times. I was able to restart the first two times but the third time it took a while and I was stalled in heavy traffic on [XXX] north of Gainesville. Luckily, a trucker pulled up behind me and put on his flashers to keep me from being hit. After sitting there several minutes, it did restart and I drove to Ft. Myers where I took it to the Acura Dealer there, Scanlon Acura. They, too, ran diagnostics and said nothing showed up. I drove it to our condo and it died before I could turn into my driveway. I called Triple A to come tow it back. This time they gave me a loaner, said they checked it out and the manager drove it over night to his home. They said it had water in the gas tank and we had to pay for the draining as that is not covered. When I picked the car up the maintenance sheet also stated a leaky valve but said there was NO water in the gas tank. I had to request my money back and asked about the valve. Was told it was a mistake. On Saturday, [XXX], my wife was driving to an appointment down [XXX] and after about 35 min, the car started jerking badly so she pulled into a parking lot when it shifted into park on its own and died. She had to have it towed backed to Scanlon Acura. They they called yesterday and said the computer says nothing is wrong. This car is a death trap and we have to return home for her treatment in a few weeks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORM
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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