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2021 Acura RDX: engine and transmission complaints

NO ELEVATED SIGNAL
30%
29 of 96 relevant owner complaints are about the engine, transmission or fuel system

No elevated drivetrain complaint concentration in the available NHTSA records for the 2021 Acura RDX. Engine, transmission and fuel system account for 30% of relevant complaints.

Better than 69% of the 1,230 model years we track (2010–2023).

Excludes 15 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 26%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
29
engine, transmission, fuel
Total complaints
111
this model year
Fires reported
0
owner-reported
Recall campaigns
3
3 crashes · 1 injuries

Complaints by component

UNKNOWN OR OTHER30 · 27%
ENGINE20 · 18%
SERVICE BRAKES16 · 14%
POWER TRAIN13 · 12%
AIR BAGS11 · 10%
ELECTRICAL SYSTEM10 · 9%

The years either side

2010
too few complaints
2011
too few complaints
2012
too few complaints
2013
22%
8 of 162
2014
11%
4 of 242
2015
24%
10 of 409
2016
39%
15 of 40
2017
47%
33 of 75
2018
46%
33 of 77
2019
29%
120 of 436
2020
24%
79 of 345
2021
30%
29 of 111
2022
3%
1 of 31
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

What owners reported

FUEL/PROPULSION SYSTEM08/20/2026
Fuel Pump is having to be replaced. I have had issues accelerating and my car also stalled once on the freeway. It put me in a dangerous situation and I almost got in an accident because my speed quickly decreased. The same part was recalled on the previous year’s model.
POWER TRAIN07/30/2026
I own an Acura RDX that experienced a sudden failure of the transfer case. Prior to the failure, there was little or no warning that a major drivetrain component was about to fail. When the transfer case failed, the vehicle lost its normal all-wheel-drive operation and required expensive repairs. I believe this is a s…
POWER TRAIN07/30/2026
I own an Acura RDX that experienced a sudden failure of the transfer case. Prior to the failure, there was little or no warning that a major drivetrain component was about to fail. When the transfer case failed, the vehicle lost its normal all-wheel-drive operation and required expensive repairs. I believe this is a s…

Three of 29 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (3)

POWER TRAIN:DRIVELINE:DRIVESHAFT
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 impro…
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
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 Ty…
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
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…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Acura RDX

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.