*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Vehicle speed control
The auto-stop feature engaged after I stopped at a traffic light. When attempting to begin moving again the vehicle, it would not move upon pressing the gas peddle like it typically does. Vehicle gave alerts stating âsystem issue shift to parkâ but I could not shift out of Drive. Police had to be called as cars were flying by and I had two kids in the back. Very scary situation. Eventually while waiting for a tow I googled the issue and saw recommendation to turn off the car, open and close the door. At this point the alert said âtransmission issue engage emergency brakeâ which I did and was then able to start the car and move it. I took the car to the dealer the next day and dealer…
Sep 10, 2026Electrical system
The contact owns a 2025 Acura MDX. The contact stated upon coming to a complete stop at an intersection downhill, the engine turned off while the instrument panel and infotainment center remained operable. The contact was unsure if the engine Auto START/STOP system was engaged during the failure. The message "Shift to Park" was displayed. The contact attempted to shift to park(P), to turn off and restart the vehicle, but the vehicle failed to respond. The message "Transmission Error-Take to Acura Dealer" was displayed. The contact's husband arrived on the scene to assist, but the Police advised the contact that an emergency tow was required due to the potential crash. The Police requested…
Oct 24, 2026 · 14,000 milesEngine
While driving and coming to a stop, the engine shuts down and will not restart. Error "To continue to drive, depress brake pedal and push Switch". After 10 minutes of trying to start the car it finally started.
Oct 24, 2026Engine
On three separate occasions, 2/27/26, 9/9/26, and 9/23/26 the Idle stop/start feature was inoperable and caused the vehicle to shut down. Upon attempting to turn the vehicle back on, vehicle would not immediately start back up. Inoperable and a major safety concern since this happened at a red light that was turning green. This poses a great concern due to traffic approaching the light while green not noticing the vehicle is stopped, as the entire vehicle shuts off when this happens. There is no way to get the vehicle moving again, so if there is traffic approaching, there is no way to avoid it or get out of the way. This was inspected by the dealership on 2/27/26 and dealer replaced the…
Feb 27, 2026Engine
I have had a problem with the "Auto Idle Stop" in my 2025 Acura MDX. While at a stop light 2 different times and at a stop sign 1 time the car engine shut off as it should. Upon letting off the brake and pressing the gas the car would not go. It stayed in Park and I could not get it to go. The engine would not turn back on. I received a warning light that said "depress brake and push start". Upon doing this the car still would not start. I had to open the door, shut door, push brake and then start the car. Dealer confirmed that this has been an issue.
Sep 1, 2026Engine
My 2025 Acura MDX A-Spec Advance (VIN [XXX]) twice failed to restart after the Auto Idle Stop system shut the engine off â on XXX (~2:00 PM CDT) and again on October 10, 2026 (2:20 PM CDT). The vehicle was immobilized and would not restart. Sterling Acura of Austin ([XXX]) diagnosed a failed starter on XXX: bench testing showed 9.7 amp draw with voltage drop below 7.3V. The dealer replaced the starter motor (part 31200-5MR-A03) under warranty, test drove 10+ miles, cleared codes, and verified the repair. A no-restart after auto idle stop leaves the vehicle without motive power in traffic, which is a safety hazard. This matches the subject of NHTSA Engineering Analysis EA25004 (No Restart…
Oct 10, 2026Electrical system
Faulty and auto-stop/start system glitch where the engine fails to turn back on. This issue frequently occurs while driving in traffic or at a stop light. This issue happens daily become extremely dangerous as car unexpected turns off and fails to turn back on a busy road. There is no option to turn off the auto-stop/start system to avoid the glitch.
Oct 13, 2026Electrical system
On two occasions my vehicle stalled out when the idle stop feature failed to restart the engine in traffic. I could not restart my vehicle initially and it took several attempts to restart. Because I was at a stop in an intersection waiting to turn this could have resulted in a serious accident. There was no warning light or other indication of an issue prior to, during, or after the first incident. This was subsequently reproduced and documented with the dealer. They indicated they are seeing issues with many other vehicle of the same model and year but indicated they couldn't say much more. The dealer said they would replace the starter but did not definitively say it would solve the…
Aug 1, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
