Acura
Mdx

When the car comes to a stop, the engine will shut down after idling. This is by design. The problem is that the engine shuts off and does not start up again. This is very dangers when turning across traffic. I took the car in for maintenance and they said this is a known issue but there is no fix. The internet has many complaints and some people are having their starters replaced. This problem has occurred in other model years of this car. Please issue a recall and make Acura accountable for this known issue.

2025 Acura MDX Aspec Advanced - Experienced 3 instances of failure to restart after engine idle shutoff or normal shutoff. Periodically starting the vehicle makes a buzzing or resistance type of sound, but usually will start. 1) 8/8/2025 Returning from shopping turned off vehicle in driveway to open hatch to unload items. Upon re-entering the vehicle (~5 mins) the push start failed to start - engine sounded sluggish first attempt and failed to start. Subsequent button presses just made a clicking sound. Had to fully turn off vehicle and back on and it started. 2) 10/10/2025 Returning from a wedding and getting off the expressway to a traffic light the auto stop/idle stop turned off the engine. Once the light turned green the vehicle failed to restart multiple times. Had to fully turn off vehicle and back on to get it to start 3) 10/30/2025 After parking for shopping, upon returning to the vehicle it failed to start from off. Any subsequent repress of the start button would make a click and starter failed to engage. after turning off vehicle and back on it started Vehicle was taken to dealership and notified of issues - they checked the battery and it was fine, no trouble found.

When the auto idle stop system is enabled my Acura will shut down completely when the vehicle comes to a complete stop and the idle stop system will not reengage as it should when your foot comes off the brake and the car shuts completely off and goes into park. This has happened 3 times, the last one occurring on a very busy highway, and I'm thankful I wasn't rear ended by the car behind me. Traffic had to go around me which caused quite a hazard pulling out into a fast moving lane. It finally responded, restarted and I was able to move forward. It was taken into the dealership and they weren't able to recreate the occurrence for the short time that they had it (one week). There was no warning prior to failure. I have called Acura Client Relations and they turned it over to their Management team, gave me a case number and I haven't heard from them as of this complaint. Reading your website I see many others having and reporting this same dangerous experience with their 2025 Acura MDX.

The power and motor on the moonroof and sunshade has failed multiple Times in the first year of owning the car.

When the automatic engine start/stop is enabled, my car will shut down. To the point where it has to be completely off, then restarted. This has happened twice, the first time was on 9/28/2025 and the second time was on 10/29/2025. We were in traffic, and the car behind me, almost ran into me, as I stalled. the lighted symbols on the dashboard were illuminated during this experience, but I am not sure which ones, as I was in a panicked state given that my child was in the car with me and this almost caused me to get hit by car behind me. I have not had this checked by the dealer yet, but I am scheduling the appointment for as soon as possible.

Car engine sometimes does not restart when the auto start-stop feature is engaged. Car engine is also sluggish to restart when it does work. My local Acura dealer evaluated the car on 10/15/25, found battery was low. Battery was replaced that day, and things seemed okay for about a week. Today (10/21) when I was stopped at a traffic light, the issue returned and my car would not restart after going into auto start-stop. The car had been on for about 30 minutes. When I tried to restart the engine, it took three tries before finally turning over. Fortunately, this has only happened thus far for me at stoplights, but safety could definitely be impacted if the engine does not turn back on and the car needs to be maneuvered quickly. No warning lights or messages appeared prior to the issue. This started for me about 3 weeks ago. No accidents or known issues with the car prior to the issue. There does not seem to be a predictable pattern to the auto start-stop feature failing.

My 2025 Acura MDX randomly turns off when in Auto Stop/Start mode at stoplights and I have to restart it. After it happen twice, my husband took it to the dealer, and they could not find anything wrong with it. It happened a third time and this time the dealer kept it for a week. They found nothing so their system doesn't detect problems well. I had their loaner, a 2025 MDX A-Spec. I was driving the vehicle into a parking space at my office which faces a 4-lane highway. My foot was on the brake, and I was 2/3rds into the space. Suddenly the car lunges forward, revs up and takes off over the curb, over 3 bushes and down a sloped hill into the highway. I could not stop the vehicle! My hands were on the steering wheel and my foot on the brake as I was bracing for impact with another vehicle. Thankfully there were no cars in the lane! As I entered the right lane a car passed by me. The engine then revved down, and I was able to gain control of the car and pull into the parking lot. I have met with the managers at the dealership. They still cannot find what's wrong with my car as the computer doesn't show anything. They have run a test on the loaner car as well and said they could not find any issues with it either. They are calling in an engineer to inspect the loaner car. I or someone else could have been badly injured or killed! I feel the MDX A-Spec I was driving is a deadly vehicle, and I do not want this to happen to anyone else!! There were no warning messages or problems prior to the incidence My hope is that there would be an investigation into this vehicle and into Honda/Acura to see it there is safety issues with their vehicles. The photos are of the area the incident happened. The dealer has the vehicle. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2025 Acura MDX. The contact stated that while depressing the accelerator pedal, the vehicle failed to respond as intended, causing the vehicle to decelerate unintendedly. Several unknown warning lights were illuminated. An independent mechanic was contacted. The vehicle was taken to an independent mechanic where it was diagnosed, and determined that the throttle body was damaged and needed to be replaced. The vehicle was not repaired. The manufacturer was notified on the failure and suggested that the vehicle be taken to the dealer for assistance. The approximate failure mileage was 6,000.