Vehicles / Acura / RDX / 2021

2021 Acura RDX

115 federal complaints (166 component records) · 3 recall campaigns on file · 190 service bulletins · 3 Canadian recalls
See all 20 model years of the Acura RDX →
Engine
2.0L 4-cyl
Fuel
Premium
Drive
AWD
EPA economy
21 city / 27 hwy
Federal complaints
115
Recall campaigns
3
Specifications show one example EPA configuration for this model year; other engines, drivetrains, and trims exist and the records below cover all of them.
How to read this file. Complaint records are unverified owner submissions to the federal safety agency. Counts are raw, not adjusted for sales volume or vehicle age. Recall campaigns apply to the model; only a VIN check shows whether this car is affected or repaired. Parts shown are named by an editorial note or listed as a search directory; none is a diagnosis. Full methodology.

Fault profile

Complaint-component records on this vehicle, grouped by family. A complaint naming two systems counts once in each.

Other
31
Engine & cooling
23
Brakes
16
Glass & wipers
14
Power train
13
Air bags
11
Body & structure
10
Electrical system
10
Complaints are owner-reported and not verified by the agency.

When it fails

The timing of this vehicle's reported failures, from the complaint file itself. A cluster tells you what to expect and when; it is shaped by reporting behavior as well as by the vehicle.

Vehicle age when the failure occurred

0 years old: 23 complaints01 years old: 13 complaints2 years old: 10 complaints3 years old: 27 complaints4 years old: 24 complaints5 years old: 18 complaints56 years old: 0 complaints7 years old: 0 complaints8 years old: 0 complaints9 years old: 0 complaints10 years old: 0 complaints1011 years old: 0 complaints12 years old: 0 complaints13 years old: 0 complaints14 years old: 0 complaints15 years old: 0 complaints1516 years old: 0 complaints17 years old: 0 complaints18 years old: 0 complaints19 years old: 0 complaints20+ years old: 0 complaints20+
Years between the model year and the owner's reported failure date. Based on 115 of 115 complaints with a usable failure date.

Known issues

The component families with the most complaint records against this vehicle. Counts, crash and fire figures belong to the whole family, not to any single named issue. Parts listed are related system parts, not a diagnosis.

Engine & cooling

23 complaint records2 crash reports
"during acceleration on highway to pass a vehicle the Acura RDX lost power and decelerated. Check engine light came on....engine lost power to accelerate/maintain highway speed almost causing an accident...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse engine & cooling parts in the directory →

Brakes

16 complaint records2 crash reports
"Since buying this car I’ve had a few occasions where the car has not slowed down and feels like the transmission is pushing the car more than it should under hard breaking...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse brakes parts in the directory →

Glass & wipers

14 complaint records
"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...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse glass & wipers parts in the directory →

Recall campaigns

Safety-recall remedies are normally provided at no charge. Under US federal law the mandatory free remedy applies when the vehicle was no more than 15 years old at the time the defect was determined; manufacturers often cover older vehicles voluntarily. Canadian rules differ. Confirm eligibility with the manufacturer using the VIN. Each campaign number links to the federal record.

CampaignComponentSummaryRemedy
26V332000Air BagsHonda (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,...Normally free
24V064000Air BagsHonda (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,...Normally free
21V939000Power TrainHonda (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...Normally free

Transport Canada recalls

Recalls issued under Canadian law for this model year, from Transport Canada's Vehicle Recalls Database. Matched by model name, so a Canadian-market variant may appear here that was sold under another name in the US. Units are Canadian vehicles affected.

RecallSystemUnits (CA)Summary
2026251
2026-05-21
Seats And Restraints12,371Issue: On certain vehicles, the weight sensor for the front passenger seat may not have been manufactured properly. As a result, the passenger-front airbag and knee airbag could deploy in a crash that doesn't require them to.
2024059
2024-02-01
Airbag66,846Issue: On certain vehicles, the weight sensor for the front passenger seat may not have been manufactured properly. As a result, the passenger-front airbag and knee airbag could deploy in a crash that doesn't require them to.
2021731
2021-12-03
Powertrain57Issue: On certain vehicles, the left-front axle shaft was not properly heat-treated. As a result, the axle shaft could fail and cause a loss of power to the wheels.

Service bulletins and warranty extensions

Manufacturer communications to dealers on file with the federal agency: repair instructions, service campaigns, and warranty extensions. A warranty extension means the manufacturer may pay for a repair the recall table does not cover.

BulletinTypeComponentSummary
B21673
May 2026
SOFTWARE UPDATEElectrical SystemOver The Air Update - Vehicles equipped with the System Updates application are capable of downloading and installing Over the Air System Updates. System Updates contain upgrades that fix a variety of operational errors and/or enhancements that add new functionality.
B23-004
Oct 2025
Structure"Service Bulletin - A pop noise can occur from the rear roof area when turning into driveways, bumps, or on an incline due to, in some cases, the panoramic roof frame mounting bolts are unable to maintain the necessary clamp force.
B25-049
Sep 2025
EngineService Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
B19-053
May 2025
Service BrakesService Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10°C (50°F).
BTI&05092025901
May 2025
StructureDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area.
Show 55 more bulletins
BulletinTypeComponentSummary
BTI&04252025901
Apr 2025
StructureDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2025 RDXs and 2022-2025 MDXs with a client complaint of a pop noise in the rear sunroof area.
B23-025
Dec 2024
Electrical SystemService Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially affect the audio sound quality.
ONL6M309172024
Sep 2024
Electrical SystemOwner Notification Letter - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially affect the audio sound quality.
BBOM07302024902
Jul 2024
Electrical SystemDealer Message - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the Media Oriented System Transport (MOST) bus network which can potentially affect the audio sound quality.
B24-045
Jul 2024
Electrical SystemService Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system transport (MOST) bus network which can potentially affect the audio sound quality.
B19-053
Jul 2024
Service BrakesService Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 24 km/h (15 mph) or less, with ambient temperatures below 10°C (50°F).
B19-053
May 2024
Service BrakesService Bulletin - The front and/or rear brakes make a high-pitched squeal when the brakes are lightly applied at 15 mph or less, with ambient temperatures below 50° F.
B19-053
Apr 2024
Service BrakesService Bulletin- The front and/or rear brakes make a high-pitched squeal when lightly applied at 15 mph or less. The front brakes stop squealing when they are warmed up.For the front brakes, the brake damping force of applied shims is insufficient at colder temperature.
B23-010
Mar 2024
Power TrainService Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC rich criteria.
B20-053
Mar 2024
Engine And Engine CoolingService Bulletin - The MIL is flashing with a loss of power. This is most common in hot, humid regions, or after a period of rainfall.
BTI&02152024901
Feb 2024
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2024 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&01222024902
Jan 2024
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2024 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
B23-004
Jan 2024
StructureService Bulletin - A pop noise from the rear roof area occurs when turning into driveways, bumps, or on an incline. It was determined that, in some cases, the panoramic roof frame mounting bolts are unable to maintain the necessary clamp force.
BTI&01022024902
Jan 2024
Visibility/WiperDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2024 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&11272023904
Nov 2023
Visibility/WiperDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2023 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&11272023905
Nov 2023
Exterior LightingDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2021 RDXs with a client complaint of moisture/condensation in the headlights.
BTI&11082023902
Nov 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2023 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&10302023901
Oct 2023
Exterior LightingDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2021 RDXs with a client complaint of moisture/condensation in the headlights.
BTI&10242023903
Oct 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2023 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&10162023903
Oct 2023
Visibility/WiperDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2021-2022 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&10022023904
Oct 2023
Visibility/WiperDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2021-2022 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&09142023901
Sep 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2021-2022 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BTI&08302023902
Aug 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2021-2022 RDXs with a client complaint of the front wipers inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
B23-004
Aug 2023
StructureService Bulletin - Pop noise from the rear roof area when turning into driveways, bumps, or on an incline due to panoramic roof frame mounting bolts unable to maintain the necessary clamp force. This can allow shifting, which may lead to a pop noise.
B23-013
Jul 2023
StructureService Bulletin - The client notices loss of auto function, or no function, of the sunroof glass/sunshade due to a Motor-Control Unit error code in the clock frequency check falsely detecting a failure.
B20-031
Jun 2023
EquipmentService Bulletin - There is a popping or crackling from the speakers, a blank display, or no sound from the audio system due to a loose connection in the MOST bus network.
B23-013
May 2023
VisibilityService Bulletin - A driver can notice loss of auto function, or no function, of the sunroof glass/sunshade due to Motor-Control Unit error code in the clock frequency check falsely detecting a failure.
BTI&03282023902
Mar 2023
Fuel SystemDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
B23-010
Mar 2023
Engine And Engine CoolingService Bulletin - Under certain circumstances, the vehicle may experience driveability concerns. This may result in the following DTC’s to set: • P0300 (Random Misfire Detected), • P0301 (No. 1 Cylinder Misfire Detected), • P0302 (No.
BTI&03132023906
Mar 2023
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
BTI&02232023904
Feb 2023
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
BTI&02072023902
Feb 2023
Fuel SystemDealer Message- American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
BTI&01182023901
Jan 2023
Electrical SystemDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
BTI&01172023
Jan 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a screeching or squeal noise from any window when it's going up or down.
BTI&01032023902
Jan 2023
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a screeching or squeal noise from any window when it's going up or down.
BTI&01032023904
Jan 2023
Electrical SystemDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087 (Fuel Rail Pressure Too Low [Loss of Fuel Pressure]) stored.
BTI&12132022902
Dec 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022 MDXs & 2020-2022 RDXs with a client complaint of the auto-open/close function on the sunshade/sunroof being lost (client has to continuously press on the button for movement).
BTI&12132022904
Dec 2022
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance.
BTI&12132022905
Dec 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 - 2022 RDXs with a client complaint of a screeching or squeal noise from any window when its going up or down.
BTI&11282022901
Nov 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 - 2022 RDXs with a client complaint of a screeching or squeal noise from any window when its going up or down.
BTI&11282022902
Nov 2022
Service BrakesDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a front and/or rear brake noise which can be described as a squeal.
BTI&11282022903
Nov 2022
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance.
BTI&11282022905
Nov 2022
Electrical SystemDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022 MDXs & 2020-2022 RDXs with a client complaint of the auto-open/close function on the sunshade/sunroof being lost (client has to continuously press on the button for movement).
BTI&11122022910
Nov 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022 MDXs & 2020-2022 RDXs with a client complaint of the auto-open/close function on the sunshade/sunroof being lost (client has to continuously press on the button for movement).
BTI&11082022904
Nov 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022 MDXs & 2020-2022 RDXs with a client complaint of the auto-open/close function on the sunshade/sunroof being lost (client has to continuously press on the button for movement).
BTI&11072022905
Nov 2022
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance.
BTI&11042022901
Nov 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 - 2022 RDXs with a client complaint of a screeching or squeal noise from any window when its going up or down.
BTI&11042022902
Nov 2022
Parking BrakeDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a front and/or rear brake noise which can be described as a squeal.
BTI&10252022902
Oct 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022 MDXs & 2020-2022 RDXs with a client complaint of the auto-open/close function on the sunshade/sunroof being lost (client has to continuously press on the button for movement).
BTI&10212022901
Oct 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 - 2022 RDXs with a client complaint of a screeching or squeal noise from any window when its going up or down.
BTI&10212022902
Oct 2022
Parking BrakeDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a front and/or rear brake noise which can be described as a squeal.
BTI&10212022903
Oct 2022
Engine And Engine CoolingDealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 RDXs & TLX L4s with a client complaint of an oil leak or a dealer technician noticing an oil leak from the head cover gasket during a routine maintenance.
BTI&10142022903
Oct 2022
VisibilityDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 - 2022 RDXs with a client complaint of a screeching or squeal noise from any window when its going up or down.
BTI&10072022902
Oct 2022
Service BrakesDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a front and/or rear brake noise which can be described as a squeal.
BBTS221001
Oct 2022
VisibilityTech Line Article - If you are inspecting an MDX/RDX and notice a loss of auto function or no function of the sunroof/sunshade, please try these steps before removing any parts or trying any other repairs.

Showing 60 of 190 distinct bulletins on file for this vehicle.

Before you buy this vehicle

A test-drive checklist generated from this vehicle's own complaint and recall record.

  1. Cold-start it yourself and listen for the first thirty seconds.Knocking, ticking that fades as it warms, or blue or white smoke on startup are the sounds of this vehicle's engine cluster. Check the oil level and the coolant color, and ask whether the engine or its head gaskets have ever been out.
  2. Brake hard once from speed on an empty road.A pull to one side, a pulsing pedal, a pedal that sinks at a stop, or an ABS light that stays lit are the brake complaints on this vehicle presenting themselves.
  3. Run the wipers and washers, and test every window.Slow or stuck regulators, streaking wipers, and windshield cracks are this vehicle's visibility complaints.
  4. Run the VIN against open recalls before you negotiate.This vehicle has 3 recall campaigns on file. An open recall needs VIN-specific confirmation. Many are quick, no-charge fixes and worth negotiating over; an unresolved do-not-drive advisory, or a remedy the manufacturer has not yet made available, should stop the purchase until it is resolved.
  5. Ask for the service history in writing, then read it against this page.The complaint families above are where owners of this vehicle report trouble. Repairs in exactly those systems are evidence the car had the problem; no such repairs could mean it never developed it, or that it was never fixed. The test-drive items above are how you tell those apart.

Parts search directory

The generic parts list for this vehicle has its own page: a search launcher for every system, filtered by fuel type and era but not by engine, trim, or brake type. It is not a diagnosis and not a fitment guarantee.

Open the parts directory for this Acura RDX →