Does the 2021 Acura RDX have any recalls?

Yes. NHTSA lists 3 recalls for the 2021 Acura RDX, the most recent reported on May 21, 2026 (Air bags: sensor, occupant classification, front passenger). Check a specific car by its VIN at nhtsa.gov/recalls.

What are the most common problems with the 2021 Acura RDX?

Owners have filed 117 complaints with NHTSA. The most frequently reported area is unknown or other (31 complaints), followed by engine (23).

How many 2021 Acura RDX complaints mention a crash or fire?

3 of 117 complaints report a crash and 0 a fire; 1 injuries were reported in total. Complaints are unverified reports from owners.

2021 Acura RDX recalls and problems

3 recalls and 117 owner complaints on file with NHTSA for the 2021 Acura RDX.

recalls

117

owner complaints

complaints mentioning a crash

mentioning a fire

Recalls apply to specific production ranges. To see whether a particular car still has an open recall, enter its VIN at nhtsa.gov/recalls. Repairs for safety recalls are free at authorised dealers.

2021 Acura RDX recalls

Air bags: sensor, occupant classification, front passenger

NHTSA campaign 26V332000 · reported May 21, 2026 · Honda (American Honda Motor Co.) · 98,892 vehicles potentially affected

The problem: Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.
The risk: Air bags that deploy unintentionally during a crash increase the risk of injury.
The fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.

Air bags: sensor, occupant classification, front passenger

NHTSA campaign 24V064000 · reported February 1, 2024 · Honda (American Honda Motor Co.) · 750,114 vehicles potentially affected

The problem: Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.
The risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.
The fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.

Power train: driveline, driveshaft

NHTSA campaign 21V939000 · reported December 2, 2021 · Honda (American Honda Motor Co.) · 279 vehicles potentially affected

The problem: Honda (American Honda Motor Co.) is recalling certain 2021 Acura RDX and 2022 CR-V Hybrid vehicles. A component in the right or left front driveshaft may have been improperly heat-treated, which could result in driveshaft failure.
The risk: Driveshaft failure can cause a sudden loss of drive power, or cause the vehicle to roll away when parked if the parking brake is not applied. Either condition can increase the risk of a crash or injury.
The fix: Dealers will replace the right or left front driveshaft as necessary, free of charge. Owner notification letters were mailed January 24, 2022. Owners may contact Honda customer service 1-888-234-2138. Honda's numbers for this recall are BBY, NBW, and OBX.

Most reported problems

Areas named in owner complaints to NHTSA. One complaint can name several areas.

Unknown or other31
Engine23
Service brakes15
Power train13
Air bags11
Electrical system10
Structure10
Visibility/wiper10
Vehicle speed control7
Forward collision avoidance6

What owners report

Recent complaints filed with NHTSA, shortened. These are unverified accounts from owners, not findings.

Oct 21, 2026 · Seat belts · 42,000 miles
The contact owns a 2021 Acura RDX. The contact stated that the front passenger’s side seat belt retractor failed to retract as needed. The vehicle was taken to a dealer and was inspected and repaired. The failure mileage was 42,000

Oct 12, 2026 · Visibility/wiper
Rear window shattered spontaneously twice. 9/12/24 & 10/11/26

Oct 7, 2026 · Engine
2021 Acura RDX has cold start, uses coolant and will stumble, limp mode approaching 2000 RPM. Vehicle will flash check engine light and then will go away when vehicle is restarted. Using search criteria noted TSB issued for same make model and year with an extended warranty being offered through TSB, 10 year 150,000…

Oct 1, 2026 · Unknown or other
Acura Sunnyside in New Hampshire denied to repair my recall on my 2021 Acura RDX.

Sep 25, 2026 · Engine
Engine was replaced 12/13/25 due to cracked cylinder head causing oil to leak into exhaust and fill cylinder 2 and 3. 09/21/26 new engine replacement done in December 25, has now blown cylinder head gasket seal in under 12,000 Miles. Causing coolant to leak into cylinders 2 and 3.

RDX model years compared

Year	Recalls	Complaints	Crashes	Fires
2018	1	78	5	0
2019	5	440	3	0
2020	5	349	4	1
2021	3	117	3	0
2022	2	31	4	0
2023	2	24	0	0
2024	2	12	1	1

Across all years, the 2019 RDX has the most complaints (440). All Acura RDX years →

Questions

Does the 2021 Acura RDX have any recalls?: Yes. NHTSA lists 3 recalls for the 2021 Acura RDX, the most recent reported on May 21, 2026 (Air bags: sensor, occupant classification, front passenger). Check a specific car by its VIN at nhtsa.gov/recalls.
What are the most common problems with the 2021 Acura RDX?: Owners have filed 117 complaints with NHTSA. The most frequently reported area is unknown or other (31 complaints), followed by engine (23).
How many 2021 Acura RDX complaints mention a crash or fire?: 3 of 117 complaints report a crash and 0 a fire; 1 injuries were reported in total. Complaints are unverified reports from owners.

Source: NHTSA recall and complaint data, updated October 27, 2026. Latest complaint received October 21, 2026.