2021 Acura Rdx: Is It Reliable?
Problems, Recalls & Buyer Verdict
Shopping for a used 2021 Acura Rdx? This page highlights owner-reported complaint patterns and recall history so you can inspect the right systems before buying. Current data includes 99 complaints, with Uncategorized Issues as the top reported area.
2021 Acura Rdx Fuel Economy
✓ EPA Official DataEPA-rated fuel economy across 4 2021 Acura Rdx trim configurations. The median figure is shown; range reflects all available trims.
Source: EPA FuelEconomy.gov. Figures reflect EPA lab testing; real-world results vary by driving style, load, and conditions. 4 trims analysed.
2021 Acura Rdx Safety Ratings
NHTSA 5-Star Program2 variants tested — showing 2021 Acura RDX SUV FWDOfficial crash test results from the NHTSA 5-Star Safety Ratings program. Stars reflect government-conducted tests; higher is safer.
Overall
16.5% rollover risk
Frontal Crash
Side Crash
Rollover
16.5% probability
Source: NHTSA 5-Star Safety Ratings. Ratings are based on government crash tests and may not reflect all trim levels.
Based on NHTSA complaint data, the 2021 Acura Rdx has 99 owner complaints, 2 crash-related complaints, and 2 recall campaigns on record. The most frequently reported component is Uncategorized Issues. NHTSA reliability signal: Notable Issues.
- Make
- Acura
- Model
- Rdx
- Model year
- 2021
- NHTSA owner complaints
- 99
- Crash-related complaints
- 2
- Safety recall campaigns
- 2
- Top reported component
- Uncategorized Issues
- Reliability signal
- Notable Issues
- EPA MPG combined
- 24
- EPA MPG city / highway
- 22 / 28
- Fuel type
- Premium Gasoline
- NHTSA overall safety rating
- 5/5 stars
- NHTSA frontal crash rating
- 4/5 stars
- NHTSA side crash rating
- 5/5 stars
- NHTSA rollover rating
- 4/5 stars
- Electronic stability control
- Standard
Most Common 2021 Acura Rdx Problems
Top owner-reported complaint areas and where they often appear.
Uncategorized Issues
Engine Problems
Brake System
Complaint patterns center on Uncategorized Issues, Engine Problems, Brake System. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Should You Buy a Used 2021 Acura Rdx?
The 2021 Acura Rdx shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase.
Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report.
What to Check Before Buying a Used 2021 Acura Rdx
Inspection Focus
- Investigate any Uncategorized Issues reported by previous owners.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for engine and brake system repairs.
- Have a mechanic inspect the vehicle before purchase.
Before You Close the Deal
- Investigate any Uncategorized Issues reported by previous owners.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for engine and brake system repairs.
- Have a mechanic inspect the vehicle before purchase.
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2021 Acura Rdx, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
What the Complaint Data Suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on 99 NHTSA complaints for the 2021 Acura RDX, issues appear concentrated in uncategorized problems, engine, and brake systems. Two crash-related complaints were reported, but the overall confidence in the data is low due to the limited sample size.
- Uncategorized Issues account for the largest share of complaints with 28 reports.
- Engine Problems are the second most reported component with 18 complaints.
- Brake System issues total 14 complaints, followed by Airbag Malfunctions with 11.
- Uncategorized Issues are the most frequent complaint category.
- Engine Problems are a recurring theme in the data.
- Brake System complaints are notably present.
All 2021 Acura Rdx Complaints by Category
Every owner-reported complaint category filed with NHTSA for the 2021 Acura Rdx. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Uncategorized Issues | 28 | 1 | — | — | |
| Engine Problems | 18 | 2 | — | — | |
| Brake System | 14 | 1 | — | — | |
| Airbag Malfunctions | 11 | — | — | — | |
| Structural Problems | 10 | — | — | — | |
| Visibility/Wiper | 9 | — | — | — | |
| Transmission / Drivetrain | 8 | — | — | — | |
| Electrical Faults | 7 | — | — | — | |
| Unintended Acceleration | 6 | 1 | — | — | |
| Forward Collision Avoidance: AEB | 6 | — | — | — | |
| Seat-Related Issues | 6 | — | — | — | |
| Visibility | 5 | — | — | — | |
| Seat Belt Issues | 4 | — | — | — | |
| Fuel/Propulsion System | 3 | — | — | — | |
| Steering Defects | 2 | — | — | — | |
| Suspension Failures | 2 | — | — | — | |
| Lane Departure | 1 | — | — | — | |
| Back Over Prevention | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Wheel Issues | 1 | — | — | — | |
| Air | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Real Owner Complaints
Read what owners actually reported to NHTSA for the 2021 Acura Rdx. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
On March 20th, my husband and I went out to dinner with three friends. We arrived around 6:50 PM and left our car with the valet. When we returned later that evening to pick up the vehicle, a valet employee approached us and asked us to walk with him to the car. The police were …
The contact owns a 2021 Acura RDX. While driving at an undisclosed speed, there was an abnormal gunshot sound coming from the vehicle. The vehicle was driven to the residence. The contact inspected the exterior of the vehicle but found no failure. The contact stated that the foll…
Got in my vehicle as usual, started the vehicle shortly after I heard cracking thought nothing of it and all of a sudden the rear tailgate window shattered completely.
- 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 …
Infotainment system fails on occasions. Sceen goes completely blank causing distraction while driving. There is currently a recall for this issue for 2019-2020 RDX.
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 wh…
Warmed car before driving, once I got in car and shut drivers side, Rear window shattered. Common issue with other owners of same car. Reached out to Acura dealerships and they claim it’s not an issue that is happening and will not replace it.
The contact's sister owns a 2021 Acura RDX. The contact stated that the rear glass had shattered while the vehicle was parked in the driveway. The dealer was contacted and advised that the earliest availability to replace the glass was in 3-4 days. The manufacturer was notified o…
After dealer (worldwide motors Ltd also call (Paragon Acura) 33-40 57th street, Woodside, NY 11377)replaced front and rear brake pads and rotors, my vehicle experienced unintended acceleration while stopped. While idling at a red light with my foot firmly on the brake pedal, the …
Back windshield glass exploded with no impact. Car was not moving. There is shattered glass everywhere and the car cannot be driven until it is repaired. This appears to be a well known issue but there is no official recall at this time. My Acura dealer said this was covered in w…
Back windshield shattered and blew out with zero impact. Car was parked Manufacturer denies responsibility . Independent company repaired because dealer was booked and needed fixed quickly. No one injured glass all over back of car and trapped in base of doo now because of fault…
1:Sunroof frame shifts creating a popping noise during certain driving conditions. Turning and going up a drive way. 2:Distracting for the driver and passengers stay concerned the whole time. 3:There is a service bulletin with Acura 23-004 but no recall to the matter. 4: Unknown…
I had found a leak coming from my 2021 Acura RDX early November. I took it into the dealership December 1st to get it diagnosed and they stated that the transmission and transfer case needs to get replaced. du The problem has been confirmed by the Bloomington Acura dealership on …
I closed my driver door and the back window just shattered. The glass just exploded.
My car was parked in my driveway. After starting it up and closing my driver’s side door, the entire rear windshield spontaneously shattered without warning or any external manipulation/force. There was no way of knowing of whether or not this would happen. I fear that if I had m…
The transfer case began leaking between the transmission and transfer case. Upon taking it to a mechanic I’ve been told the entire transfer case needs replacement because it has prematurely failed. The repair cost is $5533.00. Through research I’ve seen there are many failing …
Rear window spontaneously shattered
Complaint Summary I am filing this complaint regarding American Honda Motor Corp’s handling of a warranty claim on my 2021 Acura RDX. Despite being within the 4-year/50,000-mile warranty, I was denied full coverage for a well-documented defect: condensation/moisture in both headl…
While driving over a bump or curb to enter parking lot, I hear a popping noise coming from the sunroof at the front passenger and rear driver side of the car.
The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (AIR BAGS); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.…
Source: NHTSA Complaints Database. Real owner reports for the 2021 Acura Rdx.
2021 Acura Rdx Recalls
2 campaignsNHTSA recall campaigns for the 2021 Acura Rdx. 2 recall campaigns are on record for this model year. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
2021 Acura Rdx Buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2021 Acura Rdx reliable?▾
Notable Issues. NHTSA currently shows 99 owner complaints, 2 crash-related complaints, and 2 recall campaigns for this model year. The 2021 Acura Rdx shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2021 Acura Rdx?▾
#1: Uncategorized Issues (28 complaints). #2: Engine Problems (18 complaints). #3: Brake System (14 complaints)
At what mileage do problems start on the 2021 Acura Rdx?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2021 Acura Rdx?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2021 Acura Rdx, NHTSA complaints include 2 crash-related reports and 0 fire reports out of 99 total complaints. 1 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2021 Acura Rdx have any recalls?▾
Yes. 2 NHTSA recall campaigns affect the 2021 Acura Rdx. A major recall area is POWER TRAIN:DRIVELINE:DRIVESHAFT. 2 recall campaigns are on record for this model year. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2021 Acura Rdx?▾
The 2021 Acura Rdx shows higher complaint activity for its model-year profile, so buyers should inspect known problem areas carefully before purchase. Use the model-year trend to shortlist candidates, then confirm the exact vehicle condition with service records, recall status, and a VIN history report. Pay extra attention to Uncategorized Issues during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Acura Rdx reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2021 Acura Rdx based on your ownership experience.
Add your rating:
Ratings are based on owner experience and are separate from NHTSA data shown above.
Check the Exact Vehicle History Before You Buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.