2021 Acura RDX structure problems
10 owner complaints filed with NHTSA name the structure on the 2021 Acura RDX — 9% of all complaints for this model year.
What owners report
“- Rear window shattered without impact or any signs of stress. - Safety at risk if driving and breakage occurs. In this case I was away from the parked vehicle when the shattering occurred. - There are quite a few reports of this issue online in Facebook Acura owner groups and in published news…”
filed Feb 10, 2026
“Sudden breaking of panoramic glass on sun/moon roof. I believe this is related to the clicking noise that is caused by the improper bolting in this model. There is an active service bulletin for the improper bolting/flexing in the panoramic glass. I called the Acura dealership where this was bought…”
filed Jan 24, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
"Service Bulletin - A pop noise can occur from the rear roof area when turning into driveways, bumps, or on an incline due to, in some cases, the panoramic roof frame mounting bolts are unable to maintain the necessary…
B23-004 · Service Bulletin/Repair Instructions · issued Oct 17, 2025Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area. Clients may describe a single pop noise…
BTI&05092025901 · Other · issued May 10, 2025Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area. Clients may describe a single pop noise…
BTI&04252025901 · Other · issued Apr 25, 2025
Structure problems in other RDX years
| Year | Reports | Share |
|---|---|---|
| 2023 RDX | 2 | 10% |
| 2022 RDX | 1 | 3% |
| 2020 RDX | 24 | 7% |
| 2019 RDX | 22 | 5% |
| 2018 RDX | 3 | 4% |
| 2017 RDX | 2 | 3% |
| 2016 RDX | 3 | 8% |
| 2015 RDX | 10 | 2% |
| 2014 RDX | 3 | 1% |
| 2013 RDX | 2 | 1% |
| 2008 RDX | 2 | 6% |
| 2007 RDX | 2 | 4% |
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.