2019 Acura MDX fuel/propulsion system problems
21 owner complaints filed with NHTSA name the fuel/propulsion system on the 2019 Acura MDX — 11% of all complaints for this model year.
What owners report
“issue occurring with automatic start/stop function. car stalls on occasion trying to restart, goes into neutral, even though battery is new and in good condition. hard to replicate and occurs randomly. car has to be turned off and on again. this is the 4th time this has happened over the course of…”
filed Sep 17, 2026
“On [XXX], while traveling at highway speeds on [XXX], the vehicle suffered a sudden, complete loss of engine propulsion. The vehicle rapidly decelerated, refused to respond to accelerator input, and forced itself into a dangerous "Limp Mode" in live traffic, creating an immediate highway safety…”
filed Jun 22, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. Acura is providing a product update with a new PGM-FI…
ONL6AX01302026 · Other · issued Jan 31, 2026
Fuel/propulsion System problems in other MDX years
| Year | Reports | Share |
|---|---|---|
| 2025 MDX | 11 | 11% |
| 2024 MDX | 1 | 3% |
| 2023 MDX | 1 | 3% |
| 2022 MDX | 4 | 3% |
| 2020 MDX | 15 | 7% |
| 2018 MDX | 28 | 17% |
| 2017 MDX | 18 | 7% |
| 2016 MDX | 27 | 7% |
| 2015 MDX | 2 | 3% |
| 2014 MDX | 7 | 4% |
| 2013 MDX | 1 | 3% |
| 2012 MDX | 4 | 5% |
Other reported problem areas on the 2019 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.