Other Fuel System Problems of Acura MDX - part 1

Idle stop causing engine to shut down. This has happened three times! it’s very dangerous.

When the vehicle stops and the idle auto-start/ stop engages, the vehicle will automatically go into neutral and cannot be restarted until the vehicle is turned off then back on. This has happened at both stop lights and on the highway and almost caused a very serious rear end accident.

See all problems of the 2020 Acura MDX 🔎.

On Aug 8th at 3:32pm (81f and sunny), I stopped at a red light with the auto idle engine feature on. When I lifted my foot off the brake to drive the car, the car shifted into neutral and completely shut down and would not restart immediately. I attempted approximately 8 times to restart the car for 3 minutes before it successfully restarted. This poses a significant safety hazard for myself, my children, and others on the road. This is the 6th time this has happened and I have previously filed a NHTSA report # 11533671 with the same issue. Acura has been unable to diagnose and recreate the problem and is refusing to do any further work. It has been brought into their dealership on 3 separate occasions (July 2023, September 2024, August 2025). Prior to this occurring, there were no warning symbols, the car started fine without issue, and the battery has been checked and confirmed in working order.

“fuel door stuck,” “no manual override,” “can’t refuel. ” as per Acura manual there is way to open a gas/fuel door/cap/lid when actual way of opening through electronically fails due actuators or some other reasons. There is a manual release pull cable behind a removable access panel in the driver’s side of the cargo area trim, near or behind the wheel well lining. Manual fuel door release is inside the trunk (cargo area) in case the electronic fuel door release fails.

See all problems of the 2022 Acura MDX 🔎.

While driving on the highway this vehicle shifted into neutral and lost power. Once pulled to the side of the road, the vehicle was able to be turned off and re started. This happened to my teenage daughter without warning.

See all problems of the 2016 Acura MDX 🔎.

I am writing to formally express my concern regarding a recurring issue with the auto start/stop feature in my 2020 Acura Mdx. This feature, which is intended to improve fuel efficiency, has instead caused unexpected and unsafe engine shutoffs while the vehicle is in operation. On multiple occasions, the vehicle has failed to restart promptly after the engine shuts off at a stoplight or in traffic, creating a serious safety hazard. The delay or failure to restart can leave the car temporarily disabled in active traffic, placing both myself and other drivers at risk.

While driving at freeway speeds (70–85 mph), I experience a sudden and complete loss of acceleration when pressing the gas pedal fully. The vehicle stops responding to throttle input entirely for 1–2 seconds. To regain power, I must take my foot off the pedal for a moment and then press it again. This has happened multiple times and presents a severe safety hazard when merging, passing, or trying to avoid collisions. •frequency & reproducibility: this has occurred at least 3 times over the past year, under similar conditions. It is intermittent, but consistently happens during high-speed acceleration. •dealership response: I’ve reported the issue to the dealership, but they claim they cannot replicate the problem and do not consider it a concern. No resolution or inspection has been offered beyond a basic check. •why it’s dangerous: this issue could lead to a deadly accident if I’m unable to accelerate in time to avoid a crash. It creates a sudden and unexpected loss of control at highway speeds.

See all problems of the 2018 Acura MDX 🔎.

My car has been going into neutral when in the autostop. The only way to get out of it is to turn it off and back on. It's incredibly dangerous. I almost got into a horrible accident. It happens suddenly and without warning.

Vehicle will suddenly shut the engine off and shift into park, even when the auto engine shut off is not active. Typically happens when stopped at a stop light. You will feel the engine shut off, and the car shift into park. It is very scary and unsafe. It has also caused the vehicle to shut off and shift into neutral while it was moving, and the vehicle gave a transmission warning. It sounds very similar to NHTSA recall 25v-031, however, my vehicle was not included in the recall as it is not a type s. I took it to the dealership and they said that Acura has opened an investigation due to the number of complaints, but there is no solution yet. I have not other option but to dry the vehicle, but I am worried that it is unsafe and not good for the vehicle to keep stalling the way it is.

See all problems of the 2024 Acura MDX 🔎.

My vehicle is showing the exact same symptoms that the 2016-2018 Mdx fuel pump recall is stating but my VIN number is not part of the vehicles being recalled. I reached out to Acura relations and unfortunately, they cannot provide authorization to repair my fuel pump even though my vehicle falls under the same years that this model is being recalled for. I went to an independent shop to try and understand what the problem with my vehicle is and I was told that the high pressure fuel pump seems to be failing and was asked why I have not taken the vehicle to the dealership for the fuel pump recall. Due to this issue I am unable to properly use my vehicle. If I step on the accelerator too hard, the vehicle gets engine misfires and immediately goes on limp mode.

Car loosing power.

See all problems of the 2017 Acura MDX 🔎.

“emissions system problem” warning light has lit up on dashboard twice. This was checked and found to be a faulty code both times however, the second time it occurred, it correlated with the sway bars needing to be replaced.

There is a recall on my 2020 Acura Mdx and I have been going to the local Acura dealer to get the part for the last 6 months and every time I go they tell me they are still waiting for the part. Periodically, the vehicle lurches while I am driving causing a major back and forth tugging and jerking. This is very unsafe. I am demanding that Acura prioritizes my need to get this fixed. I do not know if the jerking of the vehicle is due to the recall, but regardless, Acura needs to do the right thing and send the part to the Acura dealership so I can get this fixed. No Acura dealer in my area says they have the part. I am on a "waiting list. " my car last did this jerking motion on 12.

From a standstill, car often does not accelerate right away when accelerator depressed (even floored). Often times there is a significant lag between depressing the accelerator and actual propulsion, as if fuel not being injected (then car peels out from sudden injection). Last year I did internet research to find that my model year is part of a range of Acuras that share this problem. Today I received a recall notification for this very problem on an app. When I entered my VIN on the NHTSA website it said my car VIN was not part of the recall, but it is the exact problem described in the recall and my car is part of the described range of models in the specified date range.

While accelerating, the vehicle to decelerated rapidly, the gas pedal became unresponsive when pushed down. Numerous warning lights started additionally, the vehicle shifted into neutral while the vehicle was being driven and would not shift out even after stopped. I was on a very busy 6 lane highway going 80 mph in thanksgiving traffic, my wife, 1 year old and 3 year old were in the vehicle. This appears to be a known issue from Honda, please see [xxx], et al. V. American Honda motor company inc. , et al. , case no. [xxx], information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The car is stalling on the highway. That very scary situation the dealer said they don’t have the parts to fix it. Also they said till the check light doesn’t come on they can’t fix it. I don’t know what to do.

See all problems of the 2019 Acura MDX 🔎.

We received these recalls more than a year ago and after we called the Acura dealership they told us that there were not enough parts to fix the cars now and that they would give us a call when they had the parts, after two months we called them again and same statement, and same thing for 3 more times with the span of six months. Today after more than a year I called again and they are saying no part is available! since I am worried about safety I don't drive my car out of the city but it seems that Acura has no plan to address these recalls.

There are two open recalls, and I have tried reaching out local dealer as well as Honda email, to get these repaired. However, I have been told that fix is not available. It has a year plus and I worry driving car with these issues ignored by Honda. Thanks.

In February 2024, received a recall for fuel pump module, which can result in prevent engine from starting, cause vehicle to lose driver power, or stall while driving. Can also result in failing emissions inspection. Acura reports that repair is not available until fall 2024. In October 2024, while at a stoplight, auto idle-stop was engaged, and engine stalled and would not turn on. Vehicle needed to be turned off and then engine started at that time. A previous recall that affected auto idle stop was addressed in may 2023 where engine does not auto restart after entering auto idle stop. In April 2023 Acura provided a software update, however in October 2024 the engine stalled as mentioned above. Additionally, a local emissions test was performed and failed around April 2022, and passed a second time when performed a few weeks later. Even after experiencing symptoms of recall 23v-858, recall has not been able to be addressed. This vehicle was brought into Acura in November 2024 for an another recall (23v-751) and I was told that current unaddressed recall may be available within the following month but could not provide any further assistance. Engine stalling at a stoplight puts my family at risk, as well as others. If engine is stalling at a stoplight, engine may stall at other times, including while driving, increasing risk of accident. Recall has been undressed for almost 10 months.

From a stop, the vehicle will lurch forward after 1 second of acceleration without a change in the amount of pressure on the gas pedal, as if there is a delayed input to the throttle position. This only happens from a complete stop, such as at red lights, stop signs, or in heavy stop and go traffic. On multiple occasions I have almost rear ended the vehicle in front of me as a result of this. There are no warning lamps or error messages displayed in the gauge cluster. I have not been able to have this inspected by any of the Acura dealers in a 25 mile radius, because when I called to make an appointment for the connecting rod bearing recall, the earliest opening was March of 2026.

Unknown.

See all problems of the 2013 Acura MDX 🔎.

Auto idle mode - after we've stopped and released the brake to go forward, the car will then shift to neutral by itself instead of restarting to drive. This has happened frequently and is now starting to happen more often. This is a safety issue, especially if you're the last car in line and other cars are traveling 55-60 miles behind you on a major road and see a green light ahead. Each time this happens, we have to turn off the car and try to restart the car, and sometimes this has been iffy and we've had to repeat the process a couple of times. There were no warning lights of problems with any of car components. . Read more...

1. ) I have had repeated, on-going issues with the fuel propulsion system since the day I bought the car. When I step on the accelerator it randomly (lately more constant than random) does not respond, then it will shoot me out into traffic. For example when I am entering the highway from an onramp, I see my opportunity to merge into traffic and I step on the gas - nothing - no response, then it suddenly accelerates and shoots me into oncoming traffic. This is so bad that I am afraid to drive the vehicle. It is deadly. I have reported the issue every time I have had the car serviced (always dealer serviced, from same dealer where I bought it. ) 2. ) the vehicle will randomly decide that I am going to hit a car in another lane, and will forcefully apply the brakes (when there is no issue, no danger, no possible way I am going to even be close to hitting another car) causing the cars behind me to come extremely close to rear-ending me! or the car will decide I am going off the road when I am taking a soft curve, and it will sound a warning and try to turn the wheel. 3. ) the display panel will go black for no reason. I then cannot use the navigation screen. It will randomly return after a few hours or after a day or two. 4. ) the camera/display will get stuck on the reverse camera causing a visual disconnect as I drive forward, but can only see what is in reverse. (like seasickness). No idea what causes it or how to fix it. Eventually it corrects itself after a few hours/day+. 5. ) car will occasionally make a strange squealing noise after it has been turned off - no idea what that is, or what causes it. As a salesperson who spends many, many hours in her car, this vehicle has become a constant danger to both my livelihood and my life. I am afraid to drive it and I will not let family members drive it as I am afraid for their lives due to the issues stated above.

The fuel pump impeller was improperly moulded, resulting in low density impellers. Over time, the low-density impeller can deform and interfere with the fuel pump body, rendering the fuel pump inoperative. If the fuel pump module is inoperative, the engine may not start or can stall while driving, increasing the risk of a crash or injury. Difficulty starting, engine hesitation while driving, or an illuminated check engine light.

See all problems of the 2014 Acura MDX 🔎.

The car periodically loses power while driving. In traffic this has caused some very scary and hazardous incidents while vehicles zoom around us or as we attempt to make it to the shoulder of the road. We do not get warning lights when it happens. The dealer (cincinnati columbia accura) has confirmed the fuel pump safety recall but has done nothing to fix it.

I was driving down the highway today at 70 mph and all the lights illuminated on my Mdx. It began to struggle to keep speed and eventually shut down once I was on the service road. I was extremely scared and nervous that I was going to be involved in an accident or the car was going to blow up as it started bouncing up and down while I was still on the highway.

We have a 2016 Acura Mdx and it has automatically shifted to neutral 3 times (twice while driving on the freeway and 1x yesterday while driving on the street at normal speeds) in the last 2 months. On the Mdx dashboard, it will display "emissions system problem" and then display "stop driving when safe. Transmission problem. See manual. " however, the car will automatically shift to neutral within seconds. My children's lives (7 y/o and 5 y/o) were placed in danger as a result of this system failure. I have contacted the Acura Honda recall specialists and client relations representatives. The car is being diagnosed at cerritos Acura dealership at the present time. A case number has been filed since our VIN shows no recall, despite it having recalls for other 2016 Acura Mdxs.

My 2017 Acura Mdx died on me 3 times in the middle of the street last year 2024, July. All the warning lights got turned on the dashboard all 3 times. Car staled and could not turn it on right away. I managed to turn it on and after few seconds turned its self off. It felt like fuel injectors were not working properly or fuel pump. I tried few more other times and got turned on and drove it home. Next day all the warning light went away. Day after, I drove it to grocery store and on stop light same thing happened. I decided to take it to Acura dealership, on the way there all the warning lights turned off by it self. They could not find that anything is wrong with it.

Upon turning right, the car lost power, degraded acceleration as if someone is holding and pulling the car to move forward. The traffic behind me expected me to cathup with the speed on the road but due to loss of power and engine hesitation I got honked and was luck to avoid a crash from behind on a busy road. Acura dealership in dallas dont have parts since a very long time. They have pleant of new cars to sell but not repair.

Two recalls outstanding from November 2023. Parts not available to fix the problems until April 2025.

I received a letter from Acura in January 2024 regarding the engine crankshaft recall. I have called the two closest Acura dealerships in an attempt to get this fixed. The last that I was informed today by a dealership is "the part is expected to arrive in August, and we are booked out until December". This put me at getting this repair fixed at one year after Acura sent me this letter admitting the crankshaft issue. My vehicle has stalled sporadically while driving for the entire two years that I have owned it. The letter from Acura states that this recall can cause the "rod bearing to prematurely wear and seize, causing engine damage which may cause the engine to run improperly or stall while driving, increasing the risk of fire, crash, or injury. I would like Acura to fix my car or put me and my family in a safe alternative.

Acura mailed me details about NHTSA recall 23v-858 in February 2024. However, the letter stated that parts won't be available until over half a year later in the fall of 2024. While I understand that it takes time to develop and produce parts, a half a year wait seems like an unusually long time to have to wait while my vehicle is considered unsafe by NHTSA. This makes it seem like Acura is prioritizing producing parts for profit over safety.

See attachment for detailed explanation.

Mil is displaying the following dtcs: p0441 p04f1 Acura dealership is stating TSB - 21-081 does not apply to my year, make, model vehicle. Is the information I am receiving accurate?.

I have a recall on my 2019 Acura Mdx for a faulty fuel pump. I have called 2 different dealers in my area, the first said they wouldn't have the parts to fix the car until December 2024 at the earliest, the second just stated that they don't have the parts. It seems to me this is quite a bit of time to be driving with a suspected faulty fuel pump. It is April 30,2024.