2021 Acura RDX · Transmission & driveline
Front driveshaft may fail and cause loss of drive power
NHTSA campaign 21V939000 lists the 2021 Acura RDX for a condition in which front driveshaft may fail and cause loss of drive power.
What the reviewed source says
Start with the documented condition, not a parts guess.
NHTSA lists the 2021 Acura RDX in safety campaign 21V939000. The official record says: A component in the right or left front driveshaft may have been improperly heat-treated, which could result in driveshaft failure. The stated safety consequence is: 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. A make, model and year match does not confirm that a specific VIN is included or that the repair remains open.
Words owners may use
Does this match the moment?
Symptoms in the pattern
- Drive power may be lost suddenly if a front driveshaft fails.
- The vehicle may roll while parked if the parking brake is not applied.
Vehicles and scope
- 2021 Acura RDX
- Vehicles included in NHTSA campaign 21V939000
- VIN confirmation is required
Manufacturer position
What the official procedure directs
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.
Campaign 21V939000 is based on the recalled vehicle population and VIN, not a published mileage threshold. Mileage alone cannot confirm or exclude it.
Original evidence
Open the documents behind this page.
Repair paths and safe checks
Separate the diagnosis from the action.
Complete recall 21V939000
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.
A year and model match does not confirm VIN eligibility. Do not substitute an owner repair for an open safety recall.
What owners reported
Did this repair fix the same symptom on your car?
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Check the VIN and record what happened
Check the 17-character VIN with NHTSA or Acura. Save campaign 21V939000, any warning messages and a short description of when the symptom occurred for the service appointment.
Do not recreate a dangerous symptom for a photo or video.
What owners reported
Did this repair fix the same symptom on your car?
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Useful before authorizing work
Read the method beside the problem
These guides explain the safety and evidence checks that apply to this problem file.
Check recalls by VIN
A VIN search checks the displayed NHTSA records for an unrepaired safety recall associated with one vehicle. A model search shows only the wider campaign population.
Read guide ↗When a car is unsafe
A warning light does not always mean the same thing, but weak brakes or smoke leave little room for experimentation. Damaged tires and certain recall instructions can do the same.
Read guide ↗Car shudders or vibrates
A useful diagnosis starts with when the vibration happens and where you feel it. The word shudder alone does not identify a transmission fault.
Read guide ↗More for this model
Other reviewed Acura RDX conditions
2015 to 2016 Acura RDX · Safety restraints
Air bag inflator may rupture
The affected vehicles are equipped with a dual-stage driver frontal air bag that may be susceptible to moisture intrusion which, over time, could cause the inflator to rupture.
2019 to 2024 Acura RDX · Safety restraints
Air bag system safety defect
The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.
2018 to 2020 Acura RDX · Fuel system
Fuel pump or delivery fault may cause a stall
The fuel pump inside the fuel tank may fail.