2020 Acura RDX electrical system problems
22 owner complaints filed with NHTSA name the electrical system on the 2020 Acura RDX — 6% of all complaints for this model year.
What owners report
“One day last December it rained very hard for a couple of days. It about 6:30pm I got in my car to go to an appointment. There was water inside the cab, on the seats, inside of the windshield, in the dashboard and controls... and about 4 inches of water on the floor on both passenger and driver…”
filed Dec 22, 2025
“The contact owns a 2020 Acura RDX. The contact stated that the vehicle was intermittently difficult to start. The message to depress the brake pedal and press the Push to Start button was displayed. The contact stated that the vehicle was able to restart after several attempts. The vehicle was…”
filed Aug 27, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Over The Air Update - Vehicles equipped with the System Updates application are capable of downloading and installing Over the Air System Updates. System Updates contain upgrades that fix a variety of operational errors…
B21673 · Over The Air · issued May 18, 2026Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can…
B23-025 · Service Bulletin/Repair Instructions · issued Dec 18, 2024Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system transport (MOST) bus network…
B24-045 · Service Bulletin/Repair Instructions · issued Jul 30, 2024
Electrical System problems in other RDX years
| Year | Reports | Share |
|---|---|---|
| 2025 RDX | 5 | 17% |
| 2023 RDX | 4 | 19% |
| 2022 RDX | 1 | 3% |
| 2021 RDX | 9 | 8% |
| 2019 RDX | 38 | 9% |
| 2018 RDX | 8 | 11% |
| 2017 RDX | 17 | 23% |
| 2016 RDX | 8 | 20% |
| 2015 RDX | 8 | 2% |
| 2014 RDX | 8 | 3% |
| 2013 RDX | 7 | 4% |
| 2010 RDX | 2 | 9% |
Other reported problem areas on the 2020 Acura RDX
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.