2025 Acura MDX electrical system problems
48 owner complaints filed with NHTSA name the electrical system on the 2025 Acura MDX — 46% of all complaints for this model year.
What owners report
“I own a 2025 Acura MDX A-Spec purchased in XXX from John Eagle Acura in [XXX]. The vehicle has less than 10,000 miles. Component/system: The Auto Idle Stop/start system has malfunctioned. During the past week, the engine unexpectedly shut off while stopped at red lights and stop signs approximately…”
filed Sep 16, 2026
“Auto Start/Stop At stop light car wouldn’t start after engaging Auto Start/Stop, had to turn on hazards, turn car off and restart with cars bearing down on me Monday 9/14, before entering traffic I stopped and Auto Start/Stop engaged but car wouldn’t start Got a jump and brought to dealership and…”
filed Sep 15, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Tech Line Summary - The vehicle's infotainment system displays previously viewed SMS messages upon each ignition cycle, when the customer's Android phone is connected via Bluetooth.
BBTS30565 · Other · issued Apr 7, 2026Over The Air System Updates - Vehicles equipped with the System Updates application are capable of downloading and installing Over the Air System updates (OTA). A connection to a Wi-Fi network is needed to perform the…
BB28518 · Over The Air · issued Mar 10, 2026Over the Air System Update - System updates contain upgrades that fix operational errors and/or provide a variety of enhancements, which adds new functionality. Information about the various software releases can be…
B28518 · Over The Air · issued Jan 17, 2026Tech Line - Customers may experience error code S001 with their audio unit. The vehicle may also have DTC B2B05-92 CAN Gateway error stored due to the dealership’s wi-fi settings.
BB29050 · Other · issued Aug 4, 2025
Electrical System problems in other MDX years
| Year | Reports | Share |
|---|---|---|
| 2024 MDX | 11 | 28% |
| 2023 MDX | 8 | 21% |
| 2022 MDX | 20 | 13% |
| 2020 MDX | 39 | 18% |
| 2019 MDX | 41 | 22% |
| 2018 MDX | 27 | 16% |
| 2017 MDX | 44 | 17% |
| 2016 MDX | 37 | 10% |
| 2015 MDX | 15 | 21% |
| 2014 MDX | 27 | 16% |
| 2013 MDX | 8 | 28% |
| 2012 MDX | 13 | 17% |
Other reported problem areas on the 2025 Acura MDX
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.