2020 Acura RDX Problems

The contact owns a 2020 Acura RDX. The contact stated that while driving 5 MPH, the contact heard an exploding sound and noticed that the sunroof had exploded, causing fragmented glass to enter the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not notified of the failure. The approximate failure mileage was 67,000.

The contact owns a 2020 Acura RDX. The contact stated that the vehicle was parked in the garage when he heard a noise and went to inspect the vehicle. The contact discovered that the rear windshield had cracked and imploded. There was no impact to the rear windshield that could have caused the failure. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was 64,000.

The vehicle’s keyless access/security and body control system malfunctioned. An authorized Acura dealer previously diagnosed water intrusion from blocked panoramic sunroof drains, including water reaching the Body Control Module (BCM) Multiplex Control Unit. The dealer reported that this was causing false security alarm activation and battery drainage and recommended BCM replacement. The vehicle and affected components are available for inspection upon request.The condition has since escalated. The security alarm repeatedly activated without cause and became difficult or impossible to silence. The dashboard displayed, “Keyless Access System Problem\. See Your Dealer.” During the latest episode, the engine spontaneously started without an authorized remote start command, and attempts to stop the engine were unsuccessful. The 12-volt battery was therefore disconnected to disable the vehicle and will remain disconnected until the vehicle is taken to the Acura dealership for diagnosis. This created a safety risk because the vehicle demonstrated unintended engine operation and loss of normal control over engine shutdown, creating potential risks of unintended operation, exhaust carbon monoxide exposure if this occurred in an enclosed area, and battery depletion. The dealer has confirmed the water intrusion and BCM security system malfunction. However, the unauthorized engine start and failure to shut down event occurred after that diagnosis and has not yet been evaluated by the dealer. Before the unauthorized start, symptoms included repeated false alarms, battery drainage, documented water intrusion, and the Keyless Access System warning. The warning was photographed at approximately 81,416 miles during the same period of escalating electrical security problems.

My RDX experienced a water-intrusion failure involving the panoramic sunroof drainage system and associated electrical components. An authorized Acura dealer diagnosed the right-front sunroof drain as backed up/overflowing, allowing water to reach the Body Control Module (BCM/Multiplex Control Unit). The dealer attributed abnormal security-alarm activation and battery drain to the water-damaged BCM and indicated that the BCM required replacement. The dealer also identified a blocked right-rear sunroof drain that allowed water to reach the tuner, causing radio/stereo malfunction and requiring tuner replacement. The water intrusion reached critical electrical components and caused unpredictable electrical behavior, including unexplained security-alarm activations, exterior lights remaining illuminated, complete battery discharge, loss of keyless access, and ultimately a no-start condition that rendered the vehicle inoperable. After the battery was depleted, I had to use the manual key to enter the vehicle. This created a risk of being stranded and raised concerns about the reliability of the vehicle’s electrical systems. There were no known dashboard warning lamps or conventional warning messages before the failure. AcuraLink recorded unexplained security-alarm activations on August 16, 2026, at 10:27 PM EDT and again on August 19, 2026, at 10:51 AM EDT. During the overnight incident, the alarm activated and the exterior lights remained on until the recently replaced battery was completely discharged. The car also experienced radio/stereo problems traced by the dealer to water reaching the tuner, and water was present in the passenger-footwell area. My car was inspected and the problem confirmed by an authorized Acura dealership. The car is available for inspection and available upon request.

My 2020 Acura RDX is currently non-operational due to a failure of the fuel pump, which is the subject of NHTSA Recall 23V-858. The vehicle suffered a complete loss of power and will not start, posing a significant safety risk should this have occurred while in motion. Despite contacting Acura Client Relations over 30 days ago, no remedy has been provided. My Case Manager states they are unable to offer a solution other than waiting for a "Territory Manager" to make contact—an event that has yet to occur. My vehicle has now been completely disabled for over two weeks. Because I reside in the [XXX] , the manufacturer claims they cannot service the vehicle due to a lack of a local franchise dealership. However, as a [XXX] territory, federal safety mandates apply. Acura has refused to authorize a local certified mechanic to perform the repair or ship the necessary parts to rectify this safety defect in a reasonable timeframe. The manufacturer is effectively denying a federally mandated safety remedy based on geographic location, leaving me with a non-operational, hazardous vehicle and no timeline for repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Acura RDX. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the fuel pump had fractured and failed to function as intended. The contact was advised to contact the local dealer. The vehicle was taken to the dealer, where it was confirmed that the fuel pump had failed. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 23V858000 (FUEL SYSTEM, GASOLINE). The manufacturer was not made aware of the issue. The failure mileage was approximately 53,000. The VIN was unavailable.

I am reporting recurring water intrusion into my 2020 Acura RDX following significant rainfall. The first water intrusion resulted from heavy rainfall in April 2026. I did not discover the water inside the vehicle until May 1, 2026, when I found water accumulated on the driver-side floor. I filed an insurance claim after discovering the damage. Following the May 1 discovery, Gunn Acura, where I purchased the vehicle, inspected it. The dealership found the panoramic sunroof drainage system had a kinked/clogged drain line that was not properly allowing water to drain. The dealership also identified corrosion affecting wiring harness components and recommended repairs including replacement of the moonroof drain tube, carpet removal/cleaning, and replacement of affected wiring harnesses. Following another heavy rainfall on June 15, 2026, water again entered the vehicle. The water intrusion has resulted in electrical concerns, including warning messages and electrical abnormalities. Water entering the cabin can reach wiring, electrical connectors, control modules and other critical electrical components, creating a potential safety risk. The vehicle and affected components are available for inspection upon request. I have dealership documentation of the kinked/clogged drain and recommended repairs, as well as insurance documentation related to the water intrusion. I am reporting this because a failure of the panoramic sunroof drainage system has resulted in repeated cabin water intrusion and potential damage to critical electrical components. I believe this may represent a recurring safety-related defect rather than ordinary water leakage.

I am reporting recurring water intrusion into the driver-side passenger compartment of my 2020 Acura RDX following significant rainfall. This has occurred multiple times. The most recent incident occurred on August 28, 2026, following heavy rainfall. Water entered the vehicle and accumulated on the driver-side floor, leaving the interior floor in a puddle. I documented the water intrusion with photographs and video and submitted that documentation to my automobile insurance company as part of a claim. The vehicle was not being driven through standing water; the intrusion occurred after rainfall while the vehicle was parked. The vehicle has previously been inspected by North Park Lincoln of Dominion, where I purchased the vehicle. Despite the prior inspection, the vehicle has continued to experience water intrusion into the driver-side cabin following significant rainfall. The recurring water intrusion raises concern that the panoramic sunroof drainage system may not be adequately draining or preventing water from entering the passenger compartment. Water entering the cabin can reach wiring, electrical connectors, control modules, and other electrical components located within the vehicle and could potentially cause electrical malfunction or other unsafe conditions. The most recent water intrusion is documented, and the vehicle and affected components are available for inspection upon request. Photographs and video documenting the August 28, 2026 incident were provided to my automobile insurance company. I am reporting this because the water intrusion has occurred repeatedly and I am concerned that this may represent a recurring safety-related defect with the 2020 Acura RDX panoramic sunroof drainage/water management system rather than an isolated incident. There were no warning lamps or messages specifically preceding the August 28, 2026 water intrusion. The primary symptom was substantial water accumulation on the driver-side floor following rainfall.

I am reporting recurring water intrusion into my 2020 Acura RDX following significant rainfall. The first water intrusion resulted from heavy rainfall in April 2026. I did not discover the water inside the vehicle until May 1, 2026, when I found water accumulated on the driver-side floor. I filed an insurance claim after discovering the damage. Following the May 1 discovery, Gunn Acura, where I purchased the vehicle, inspected it. The dealership found the panoramic sunroof drainage system had a kinked/clogged drain line that was not properly allowing water to drain. The dealership also identified corrosion affecting wiring harness components and recommended repairs including replacement of the moonroof drain tube, carpet removal/cleaning, and replacement of affected wiring harnesses. Following another heavy rainfall on June 15, 2026, water again entered the vehicle. The water intrusion has resulted in electrical concerns, including warning messages and electrical abnormalities. Water entering the cabin can reach wiring, electrical connectors, control modules and other critical electrical components, creating a potential safety risk. The vehicle and affected components are available for inspection upon request. I have dealership documentation of the kinked/clogged drain and recommended repairs, as well as insurance documentation related to the water intrusion. I am reporting this because a failure of the panoramic sunroof drainage system has resulted in repeated cabin water intrusion and potential damage to critical electrical components. I believe this may represent a recurring safety-related defect rather than ordinary water leakage.

I am reporting recurring water intrusion into the driver-side passenger compartment of my 2020 Acura RDX following significant rainfall. This has occurred multiple times. The most recent incident occurred on August 28, 2026, following heavy rainfall. Water entered the vehicle and accumulated on the driver-side floor, leaving the interior floor in a puddle. I documented the water intrusion with photographs and video and submitted that documentation to my automobile insurance company as part of a claim. The vehicle was not being driven through standing water; the intrusion occurred after rainfall while the vehicle was parked. The vehicle has previously been inspected by North Park Lincoln of Dominion, where I purchased the vehicle. Despite the prior inspection, the vehicle has continued to experience water intrusion into the driver-side cabin following significant rainfall. The recurring water intrusion raises concern that the panoramic sunroof drainage system may not be adequately draining or preventing water from entering the passenger compartment. Water entering the cabin can reach wiring, electrical connectors, control modules, and other electrical components located within the vehicle and could potentially cause electrical malfunction or other unsafe conditions. The most recent water intrusion is documented, and the vehicle and affected components are available for inspection upon request. Photographs and video documenting the August 28, 2026 incident were provided to my automobile insurance company. I am reporting this because the water intrusion has occurred repeatedly and I am concerned that this may represent a recurring safety-related defect with the 2020 Acura RDX panoramic sunroof drainage/water management system rather than an isolated incident. There were no warning lamps or messages specifically preceding the August 28, 2026 water intrusion. The primary symptom was substantial water accumulation on the driver-side floor following rainfall.

System warning light stating Electronic Parking Brake Error, that the system would not engage and to contact a dealership.

The car was just purchased Turning left going about 5 to 10mph in a 25 mph zone it hit the brakes. Then about 100 yrds later at a stop light, the car was turning left with traffic going onto a 45mph road. It slammed on the brakes, saying "brake", on the Display, causing whiplash, and almost a major accident. After calling Acura, they mentioned these driver assistance systems were tied into cruise control. When the car was tested on the highway a couple days before and used cruise control, the collision and another warning system were faulty. It said "sensor is covered or..." I do not remember the 2nd part. They specifically said if these systems are problematic with warning lights, you should not use cruise control. These cars should not be on the road. No shortage of people complaining about this online.

The contact owns a 2020 Acura RDX. The contact stated that while driving on several occasions at various speeds, the brakes were unintendedly activated. Additionally, the contact observed an orange warning light which stated “Brakes” illuminated and then went off. The vehicle was taken to a dealer twice however, the dealer was unable to replicate the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 10,000.

On April 18, 2023 driving thru shopping center parking lot, WITHOUT WARNING car suddenly jerked right, accelerated, while brakes, steering wheel, gears locked. Ended crashing thru the wall of a structure. Airbags did NOT deploy but seat belts tightened firmly keeping us from going thru windshield. Episode of "UNINTENDED ACCELERATION" was reported to Honda Motors whose agent, Jason, checked the car 8/1/23 and found no defect. We had driven the car for almost 49,000 miles without incident yet, their agent drove it for LESS than 10 miles and concluded NOTHING WRONG with the car. Twelve days later while stopped at a red light, dashboard lights suddenly flashed and engine came to a complete STOP. DEAD. Conclusion was damaged sensor to gas tank since husband had run over tanker truck tire debris on fwy earlier in the day. Point is, this 2020 Acura RDX with <50K miles has had TWO MAJOR INCIDENTS : UNINTENDED ACCELERATION and UNINTENDED DECELERATION. Feel betrayed by Honda Motors Corp at conducting a superficial, inadequate inspection for the defects mentioned and fear for our safety and those of others we share on the road. There's a class action lawsuit in Florida for similar complaints but we live in California and have been unable to procure legal representation.....apparently, not cost effective. My driving record is clean.

Transfer case is leaking. Then the engine overheated. Confirmed and inspected by the dealer. No warnings prior to the incident.

Powertrain failed in 2020 Acura RDX Tech Pkg AWD. Only 2 weeks after the 6 year warranty expired on the vehicle the powertrain failed and set off the check engine light. Dealer service department found an excessive amount of shavings in the plug. The vehicle only had 41,345 miles on it before transmission/powertrain failed and there was only 1 owner for the vehicle. It was purchased brand new from the dealer and vehicle was well-maintained.

Since we bought the vehicle in 2019, the passenger-side seat sensor didn't always go off when occupied. We asked the dealership to check it out in 2020 or 2021, however, due to the problem being inconsistent it couldn't be fixed. The inconsistency of the seat sensor has continued though the years, but lately, it has become more frequent. I am the usual occupant on the passenger side and I weigh 113 lbs. I recently spoke with the dealer service department after I saw the recall; however, the recall does not apply to our VIN.

My wife weighs about 125 pounds. When she sits in the front passenger seat of this car, often (but not always) an indicator will light up on the dashboard, saying "Passenger Air Bag OFF." Even if she shifts around in the seat or bounces up and down, the indicator light will stay on. I have taken the car to my local Acura dealer twice, asking that this problem be diagnosed and fixed. The first time their service technician reported "No issues at this time. Unable to duplicate concern at this time." The second time (today), the technician reported that he had "checked system for codes, no codes in system. Light will go on and off if passenger moves around in seat." I remain quite concerned that this un-repaired problem is a significant safety issue, as the indicator light appears to be saying that the airbag won't deploy in a collision.

2020 Acura RDX Rear Coil Spring snapped in half on left side. Safety concern drove to nearest independent service center to be accessed within 5 miles of incident. Advised not to drive it. Called Acura Dealership. Advised to replace both Left and Right side and have new alignment. No warning lights or other symptoms, just an extremely loud bang to left side while driving. Estimated out-of-pocket expenses: Rear coil springs (both) $600 parts/labor Alignment required $100 Total $700 unless goodwill applies (Acura quoted and independent matched prices (allowing me not to have it towed 15 miles to dealership) This is a corrosion related rear coil spring failure at 72,000 miles in Ohio. I’m asking Acura to consider goodwill assistance because this appears premature for a critical suspension component.” Please open a good will case with Acura Tech Line/Client Relations based on: ✅ Safety-related failure (suspension spring) ✅ Salt-belt state (Ohio — well known for corrosion issues) ✅ Reasonable mileage (72,000 miles is not excessive for a structural suspension part) ✅ Dealer acknowledged the issue (they quoted it and advised not to drive) ✅ No abuse or impact damage (no tire damage, single spring corrosion failure)

Lower control arm rubs against subframe. Makes noise as going over bumps. Acura has a service bulletin, 20-025, from June 19, 2020 identifying issue. Issue told to tech in past but was identified. Now identified at 66,881 on car out of warranty but Acura will not cover. Rubbing seems like safety issue over time

On April 18, 2023 driving thru shopping center parking lot, WITHOUT WARNING car suddenly jerked right, accelerated, while brakes, steering wheel, gears locked. Ended crashing thru the wall of a structure. Airbags did NOT deploy but seat belts tightened firmly keeping us from going thru windshield. Episode of "UNINTENDED ACCELERATION" was reported to Honda Motors whose agent, Jason, checked the car 8/1/23 and found no defect. We had driven the car for almost 49,000 miles without incident yet, their agent drove it for LESS than 10 miles and concluded NOTHING WRONG with the car. Twelve days later while stopped at a red light, dashboard lights suddenly flashed and engine came to a complete STOP. DEAD. Conclusion was damaged sensor to gas tank since husband had run over tanker truck tire debris on fwy earlier in the day. Point is, this 2020 Acura RDX with <50K miles has had TWO MAJOR INCIDENTS : UNINTENDED ACCELERATION and UNINTENDED DECELERATION. Feel betrayed by Honda Motors Corp at conducting a superficial, inadequate inspection for the defects mentioned and fear for our safety and those of others we share on the road. There's a class action lawsuit in Florida for similar complaints but we live in California and have been unable to procure legal representation.....apparently, not cost effective. My driving record is clean.

I was driving at 65 MPH on the highway in the left lane during a rainstorm. Suddenly the engine shuttered and began to shut down. I could not accelerate the engine. The engine light came on and was flashing. I was fortunate enough to maneuver through traffic to the shoulder of the road - sitting there where other drivers would not be expecting to see a car. I turned the car off and sat there in a rainstorm for 15 minutes hoping not to get hit. I started the car and it seemed to work fine for the remained of the trip with no issues or engine light flashing. Very dangerous situation for me - I shutter to think what might have happened if my wife was driving with the kids and this happened. She would make me sell the car today.

October 30th 6pm, parked car at home and exterior lights (headlights, fog lights, rear lights) would not turn off. Car was not running. Lights finally went off when battery was completely drained. Had to jump battery to get car to dealership on October 31st. There were no previous warning lamps or messages. Dealership did a complete reinspect and were able to reproduce issue. Dealership determined that there was a leak in the sunroof. I then shared that the sunroof had been rattling and popping for a few weeks, but did not mention when dropping off for the lights since I didn't think it was related. I have spoken to Honda who states that this VIN does not have any recalls. There are known issues with the sunroofs for this year and make of car, but no recalls and the extended warranty as well as the 'certified car' warranty does not cover this issue.

Car would not turn on. All electronics started glitching, lights flickering. Had to disconnect the battery to turn off.

The contact owns a 2020 Acura RDX. The contact stated that the rear passenger's side seat belt failed to extend as needed and failed to retract automatically. The vehicle was taken to the dealer several times, where unknown repairs were performed; however, the failure persisted. The contact stated that the seat belt was inoperable. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 25,000.

ON OCT 31 2019 WE PURCHASED THE 2020 RDX ADVANCE AND THE PASSENGER FRONT SEAT AIRBAG LIGHT OFF HAS BEEN SPORADICALLY STAYING ON WHEN MY WIFE IS SITTING IN THE PASSENGER SEAT. WHICH INDICATES THE AIRBAG IS NOT ARMED ON THAT SIDE. LUCKILY WE HAVE BEEN TAKING PHOTOS OF THE SWITCH COMING ON WITH HER SITTING IN THE SEAT. THEY SAY ITS A WEIGHT ISSUE WHICH IS UNACCEPTABLE. IF YOU TURN THE CAR OFF THE AIRBAG LIGHT RESETS TO OFF WHEN SHE IS SITTING IN THE CAR. IF THE CAR IS RUNNING AND YOU PICK UP A PASSENGER THE AIRBAG LIGHT DOES NOT TURNOFF. DEALER RESPONDED IT BEING A WEIGHT ISSUE AND THAT THE SENSORS ARE DIFFERENT BETWEEN THE DRIVER AND PASSENGER. THIS IS UNACCEPTABLE SAFETY ISSUE.