2021 Acura Rdx

Defect. 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.

Risk. Air bags that deploy unintentionally during a crash increase the risk of injury.

Remedy. 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.

Defect. 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.

Risk. An air bag that deploys unintentionally during a crash can increase the risk of injury.

Remedy. 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.

Defect. 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.

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.

Remedy. 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.

Two low-speed sudden unintended acceleration events while parking a 2021 Acura RDX. Incident 1 (July 2026): While parking at low speed, the car unexpectedly surged forward. Flew up the curb and hit a restaurant window, causing massive undercarriage damage. Active braking did not help and seemed to make acceleration worse. It only stopped when it wanted to. Incident 2 (August 2026): Two weeks after getting the car back from repairs, under identical low-speed parking conditions, a second sudden acceleration event occurred. Slamming on the brakes did nothing. It stopped after scraping a car wash vacuum pole, destroying the entire passenger side. Prior to these, the car exhibited erratic safety software behavior, including multiple phantom braking incidents where it slammed on its brakes violently with no obstacles present. I bought the car Certified Pre-Owned two years ago. The dealership repaired a known "popping sound" from the panoramic sunroof frame three times. This required extensive cabin/pillar teardown work, which may have disturbed internal wiring harnesses or grounding points linked to the electronic throttle control system. In both events, it felt like an uncontrolled amusement park ride—the engine loudly revving and taking over with zero driver control. I initially assumed pedal confusion during the first crash, but since it happened again under identical circumstances, there is clearly a systemic electronic/software defect in the Throttle Actuator or Powertrain Con

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.

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 safety defect because the transfer case is a critical drivetrain component. A sudden failure can reduce traction and vehicle control, especially when driving at highway speeds or on wet, snowy, or icy roads. Drivers may not expect the loss of power to the rear wheels, which could increase the risk of skidding, loss of stability, or being unable to safely accelerate into traffic or avoid a hazard. In addition, there are numerous reports from other Acura RDX owners describing similar transfer case failures, suggesting this may not be an isolated incident but a recurring problem. A critical drivetrain component should not fail prematurely under normal use without adequate warning. I believe this issue warrants investigation because it has the potential to affect vehicle safety and place drivers and passengers at unnecessary risk.

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 safety defect because the transfer case is a critical drivetrain component. A sudden failure can reduce traction and vehicle control, especially when driving at highway speeds or on wet, snowy, or icy roads. Drivers may not expect the loss of power to the rear wheels, which could increase the risk of skidding, loss of stability, or being unable to safely accelerate into traffic or avoid a hazard. In addition, there are numerous reports from other Acura RDX owners describing similar transfer case failures, suggesting this may not be an isolated incident but a recurring problem. A critical drivetrain component should not fail prematurely under normal use without adequate warning. I believe this issue warrants investigation because it has the potential to affect vehicle safety and place drivers and passengers at unnecessary risk.

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 safety defect because the transfer case is a critical drivetrain component. A sudden failure can reduce traction and vehicle control, especially when driving at highway speeds or on wet, snowy, or icy roads. Drivers may not expect the loss of power to the rear wheels, which could increase the risk of skidding, loss of stability, or being unable to safely accelerate into traffic or avoid a hazard. In addition, there are numerous reports from other Acura RDX owners describing similar transfer case failures, suggesting this may not be an isolated incident but a recurring problem. A critical drivetrain component should not fail prematurely under normal use without adequate warning. I believe this issue warrants investigation because it has the potential to affect vehicle safety and place drivers and passengers at unnecessary risk.

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 safety defect because the transfer case is a critical drivetrain component. A sudden failure can reduce traction and vehicle control, especially when driving at highway speeds or on wet, snowy, or icy roads. Drivers may not expect the loss of power to the rear wheels, which could increase the risk of skidding, loss of stability, or being unable to safely accelerate into traffic or avoid a hazard. In addition, there are numerous reports from other Acura RDX owners describing similar transfer case failures, suggesting this may not be an isolated incident but a recurring problem. A critical drivetrain component should not fail prematurely under normal use without adequate warning. I believe this issue warrants investigation because it has the potential to affect vehicle safety and place drivers and passengers at unnecessary risk.

While driving only at 35 miles per hour down the XXX in [XXX] my panoramic sunroof suddenly bursts. A loud pop sound. This would have popped all over my body if I didn’t have cover up. This is an extreme problem as someone can die from this. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle lost all coolant and could be smelled. Vehicle was towed to dealership before it could overheat. Diagnosed with a cracked cylinder head at 88,000 miles. Vehicle has never been modified, tracked, nor has it ever overheated. All service has been performed on time and at Acura dealership since I purchased the vehicle brand new. Vehicle is still at dealership. I've researched and found many other owners experiencing the same problem with the crack occurring in the exact same spot on the cylinder head.

On or about XXX, my 2021 Acura RDX, with approximately 121,078 miles, suddenly displayed multiple dashboard warning lights and system-failure messages while I was driving. These included the check-engine light, Road Departure Mitigation System Problem, steering, stability-control, braking-assistance and other driver-assistance warnings. Earlier, the tire-pressure monitoring system had also indicated a malfunction even though the tire pressures were correct. The vehicle initially continued to drive and the conventional brakes appeared to function normally. However, it then began hesitating when I attempted to accelerate. The vehicle would eventually gain speed, but the initial hesitation created a serious safety concern when pulling into traffic or attempting to accelerate. The check-engine light remained solid while the vehicle was stopped but flashed whenever I began driving and accelerating again. No crash, fire or injury occurred. The vehicle had undergone a full diagnostic inspection approximately two weeks earlier, and I was informed that everything checked out properly. There were no known drivability problems before this incident, and the vehicle has been maintained according to the manufacturer’s recommended service schedule. The vehicle was subsequently inspected by Elite Acura, an authorized Acura dealership in [XXX]. The dealership confirmed a head-gasket failure and a problem with the rear differential left-side actuator. The dealer recommended replacing the head

A transmission fluid leak has been identified emanating from the passenger side output shaft seal, located between the transmission and the transfer case. This issue pertains to 2019–2023 Acura RDX and TLX models equipped with SH-AWD, specifically at the interface where the transmission connects to the front transfer case, which is responsible for power distribution to the rear wheels. It appears that the fitment tolerances at this connection point are problematic, suggesting a potential engineering deficiency that warrants a manufacturer-funded resolution..

The contact owns a 2021 Acura RDX. The contact stated that while at a complete stop at a stop sign or traffic light, the engine auto stop-start system was inoperable upon depression of the brake pedal. The vehicle was taken to the dealer, but the failure could not be duplicated. The dealer initially suggested that the battery might require replacement. However, another dealer determined that the battery was functioning properly and exhibited no defects upon inspection. The manufacturer was not notified of the failure. The failure mileage was unavailable.

The Auto High-Beam system activates the high beams inappropriately during operation. The system triggers the high beams directly into the eyes of oncoming traffic and activates during early dusk conditions. The sudden, intense illumination blinds oncoming drivers. This creates an immediate glare hazard and significantly increases the risk of a head-on collision. I reported this specific failure to the authorized dealership on three separate occasions, engaging three distinct service advisors during the active warranty period. The service department omitted these complaints from the formal repair orders. The first advisor stated the system was functioning normally. The second advisor stated the technicians completed an inspection and verified the system as fully operational. The third advisor acknowledged experiencing the exact same malfunction on their personal vehicle and instructed me to manually disable the safety feature. The system fails silently, displaying zero warning lamps or error messages prior to or during the malfunctions. The attached service invoices document a severe, underlying instability within the vehicle's electrical and Advanced Driver Assistance Systems (ADAS) network, culminating in a complete VSA modulator replacement. These records establish a confirmed administrative pattern of the dealership dismissing intermittent safety faults, officially logging statements such as "unable to verify issue" and "no problem found" on subsequent visits. This evident

On March 20th, my husband and I went out to dinner with three friends. We arrived around 6:50 PM and left our car with the valet. When we returned later that evening to pick up the vehicle, a valet employee approached us and asked us to walk with him to the car. The police were already present at the scene. The employee explained that when he entered the vehicle on the driver’s side to return it to us, he closed the door and immediately heard the sound of glass shattering. When we reached the car, we saw that the entire rear window had been shattered. The police later reviewed the surveillance footage and confirmed that the incident occurred exactly as described by the valet employee.

The contact owns a 2021 Acura RDX. While driving at an undisclosed speed, there was an abnormal gunshot sound coming from the vehicle. The vehicle was driven to the residence. The contact inspected the exterior of the vehicle but found no failure. The contact stated that the following day, while driving at an undisclosed speed, the panoramic roof glass shattered, and glass shards fell inside the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.

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.

- Rear window shattered without impact or any signs of stress. - Safety at risk if driving and breakage occurs. In this case I was away from the parked vehicle when the shattering occurred. - There are quite a few reports of this issue online in Facebook Acura owner groups and in published news stories such as this: [XXX] - In my case, it was inspected by the repair company and confirmed to be a common occurrence they are called to repair. - There were no warning lights or any signs of damage or stress to the glass. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Infotainment system fails on occasions. Sceen goes completely blank causing distraction while driving. There is currently a recall for this issue for 2019-2020 RDX.

Sudden breaking of panoramic glass on sun/moon roof. I believe this is related to the clicking noise that is caused by the improper bolting in this model. There is an active service bulletin for the improper bolting/flexing in the panoramic glass. I called the Acura dealership where this was bought and they didn’t acknowledge that. I had my two children, toddler and infant, in the back. They like the panoramic open. If this broke on top of them this would be a very serious injury.

Warmed car before driving, once I got in car and shut drivers side, Rear window shattered. Common issue with other owners of same car. Reached out to Acura dealerships and they claim it’s not an issue that is happening and will not replace it.

The contact's sister owns a 2021 Acura RDX. The contact stated that the rear glass had shattered while the vehicle was parked in the driveway. The dealer was contacted and advised that the earliest availability to replace the glass was in 3-4 days. The manufacturer was notified of the failure and a case was opened; however, the manufacturer later informed the contact that the model year was not covered under TSB: 22-014 (Rear Windshield Glass Shattering). The failure mileage was approximately 60,000.