2021 Acura RDX Other or unknown Problems
- Complaints
- 31about this part
- Share
- 27%of 117 total for the year
- Median mileage
- 3,100miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 31 complaints about the other or unknown of the 2021 Acura RDX, 27% of the 117 complaints for this model year. Where a mileage was given, the median is 3,100 miles. 2 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Both myself and husband have heard knock or loud pop sound. One loud knock or two with slight level change such as entering or leaving driveway. Many other Acura RDX owners have reported same issue. Appears to be flexing of panoramic sunroof. My vehicle is one week old (was courtesy vehicle) 2021 Acura RDX. In shop now. Many have reported service issues with no resolution through dealership or Acura. Several owners have added issues with sunroof leaking and even blow out of sunroof window.”
NHTSA complaint #11399917, filed 2021-03, 3,100 miles“Since purchasing this vehicle new in August, 2020, I have noticed intermittent loud popping noises coming from the sunroof. This typically happens when driving over an uneven portion of the road and sounds like the glass is going to break. I am reporting this now because I have read numerous similar complaints by other RDX owners where in some cases, the glass has actually imploded.”
NHTSA complaint #11571614, filed 2024-02“On NOV 20th 2021 took the vehicle for Oil change, to Acura dealer. The service tech informed me the hood its not opening. The latch or cable its broken. The part its not in stock. I can't open the hood to check all necessary fluids, especially windshield washer fluid. I think its safety concern when I'm out of washer.”
NHTSA complaint #11442231, filed 2021-12“My sunroof exploded for no reason while traveling at highway speeds. Fortunately my sunshade was closed preventing shattered glass from entering the cabin which could have injured me. Shattered glass also damaged the paint on top of my vehicle which will require repainting. The noise made by the glass exploding startled me and could have caused an accident in addition to the glass that flew off of the vehicle endangering vehicles behind me.”
NHTSA complaint #11594354, filed 2024-06“My Telemetrics Control Unit failed on Acura update. This is part of the system that calls for Emergency help when involved with a crash. I t was identified at an Acura dealership and the part was ordered. It is on back order now for over a month with no known delivery date”
NHTSA complaint #11449268, filed 2022-01Related service bulletins
- 10215481Jun 6, 2022"Notice - Our records indicate that a PRODUCT IMPROVEMENT UPDATE has not been completed on this vehicle (Vehicle Identification Number [VIN NUMBER]). The date for updating…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 7% |
| 2024 | 4 | 33% |
| 2023 | 4 | 17% |
| 2022 | 11 | 35% |
| 2021 | 31 | 27% |
| 2020 | 102 | 29% |
| 2019 | 142 | 32% |
| 2018 | 8 | 10% |
| 2017 | 8 | 10% |
| 2016 | 5 | 12% |
| 2015 | 8 | 2% |
| 2014 | 12 | 5% |
| 2013 | 6 | 4% |
| 2012 | 2 | 13% |
| 2007 | 5 | 9% |
Other parts of the 2021 Acura RDX
23 complaintsBrakes
16 complaintsVisibility (wipers, defrost, mirrors)
15 complaintsTransmission and drivetrain
13 complaintsAir bags
11 complaintsElectrical system
10 complaintsBody and structure
10 complaintsVehicle speed control
7 complaintsForward collision avoidance
6 complaintsSeats
6 complaintsFuel system
5 complaintsSeat belts
5 complaints
← All problems reported for the 2021 Acura RDX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology