2021 Acura Rdx: Problems & Reliability
The 2021 Acura Rdx has 118 NHTSA owner complaints, 194 manufacturer service bulletins, and 3 recall campaigns on federal record, led by unknown or other and engine issues. Among the 12 Acura Rdx model years with federal records, it ranks 4th by combined complaint and bulletin volume.
Sources: NHTSA complaints (ODI), manufacturer service bulletins, recall campaigns, CarWhere verified buyer prices · Updated 2026-11-05 · By CarWhere Research · Methodology
118
NHTSA complaints
194
Service bulletins
3
Recall campaigns
—
Avg. buyer-paid
Most-reported problem areas on the 2021 Acura Rdx
Unknown Or Other — 31 owner complaints filed with NHTSA for this model year.
Engine — 24 owner complaints filed with NHTSA for this model year.
Service Brakes — 16 owner complaints filed with NHTSA for this model year.
How the 2021 compares to adjacent years
Counts are raw federal filings, not adjusted for sales volume. Prices are averages of CarWhere verified buyer transactions (shown when 3+ deals exist for the year). Full year-by-year table: Acura Rdx years to avoid.
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FAQ
Is the 2021 Acura Rdx reliable?
The 2021 Acura Rdx has 118 NHTSA owner complaints, 194 manufacturer service bulletins, and 3 recall campaigns on federal record, led by unknown or other and engine issues. Among the 12 Acura Rdx model years with federal records, it ranks 4th by combined complaint and bulletin volume. Counts are raw federal filings, not adjusted for sales volume.
What are the most common problems with the 2021 Acura Rdx?
The most-reported problem areas for the 2021 Acura Rdx in NHTSA owner complaints are unknown or other, engine, service brakes. Service bulletins (194 on file) show what the manufacturer issued repair guidance for.
Does the 2021 Acura Rdx have recalls?
Yes — 3 recall campaigns on federal record for the 2021 Acura Rdx. Recall completion is VIN-specific: run the exact VIN to see whether the work was actually done on the car you're considering.
Is the 2021 Acura Rdx a good year to buy?
The 2021 sits mid-pack among Acura Rdx model years on the federal record; the 2024 and 2025 years have the cleanest records. Judge the specific car: run the VIN and get an inspection.
How do I check a specific 2021 Acura Rdx before buying?
Decode the VIN free at carwhere.com/tools/vin-decoder to confirm the build, then run the $9.99 CarWhere Full VIN Report for the exact VIN — recall, complaint, and service-bulletin record for this model year, the original window sticker where the manufacturer publishes one, and a market price check from verified buyers. One-time purchase, no subscription.