2021 Acura RDX service brakes problems
15 owner complaints filed with NHTSA name the service brakes on the 2021 Acura RDX — 14% of all complaints for this model year.
What owners report
“Two low-speed sudden unintended acceleration events while parking a 2021 Acura RDX. Incident 1 (July 2026): While parking at low speed, the car unexpectedly surged forward. Flew up the curb and hit a restaurant window, causing massive undercarriage damage. Active braking did not help and seemed to…”
filed Aug 22, 2026
“On or about XXX, my 2021 Acura RDX, with approximately 121,078 miles, suddenly displayed multiple dashboard warning lights and system-failure messages while I was driving. These included the check-engine light, Road Departure Mitigation System Problem, steering, stability-control…”
filed Jul 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10°C (50°F).
B19-053 · Service Bulletin/Repair Instructions · issued May 30, 2025Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10°C (50°F).
B19-053 · Service Bulletin/Repair Instructions · issued May 16, 2025
Service Brakes problems in other RDX years
| Year | Reports | Share |
|---|---|---|
| 2025 RDX | 14 | 47% |
| 2023 RDX | 1 | 5% |
| 2022 RDX | 3 | 10% |
| 2020 RDX | 22 | 6% |
| 2019 RDX | 22 | 5% |
| 2018 RDX | 4 | 5% |
| 2017 RDX | 11 | 15% |
| 2016 RDX | 6 | 15% |
| 2014 RDX | 3 | 1% |
| 2013 RDX | 2 | 1% |
| 2008 RDX | 1 | 3% |
| 2007 RDX | 1 | 2% |
Other reported problem areas on the 2021 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.