2020 Acura Rdx

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.

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.

The contact owns a 2020 Acura RDX. The contact stated that while driving at various speeds, the engine started shuddering and vibrating, and the vehicle stalled. The message that the engine was overheating was displayed. The vehicle was driven to the local dealer to be diagnosed, and it was determined that the head gasket had failed. The contact was later informed that the bolts on the turbocharger also failed. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 82,000.

The contact owns a 2020 Acura RDX. The contact stated that while driving 65 MPH in inclement weather, moisture entered the turbocharger, and the vehicle went into LIMP Mode and the check engine warning light illuminated. The contact pulled over, restarted the vehicle, and drove to a local dealer. A technician confirmed that the failure was caused by moisture entering the turbocharger and referenced an unknown Technical Service Bulletin associated with the repair for the vehicle. The dealer stated that the vehicle was safe to operate. There were no further issues with the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 65,000.

Grubbs Acura in Grapevine TX has all the information

While driving my 2020 Acura RDX on the highway, the sunroof suddenly shattered without any warning. There was a very loud explosion-like sound that was extremely startling and frightening. No objects appeared to strike the vehicle, and the glass seemed to break on its own while driving at highway speed.

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.

Rear windshield (Tailgate Glass) spontaneously shattered while parked without external impact. This left the vehicle exposed to theft and made me feel unsafe. Will this continue to happen? The dealership replaced the glass but now the broken pieces of glass are trapped inside the tailgate providing a rattle when gate lifts /closes.

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.

This is a well known problem that when water gets into the intercooler, the car goes into limp Mode. This happens to my daughter, while driving 85 miles in the fast lane in the highway. Her check engine light started flashing, she was unable to accelerate, and she was scared! She had to pull over in the left lane, against the median.This is a safety hazard! I am paying over $1000 to have this fixed. TSB 20-053 this should be a recall!!

I went to my car, got in and shut the door. Immediately I heard an explosion behind me. It was my rear lift gate window. The glass burst into thousands of pieces & could have hit someone outside & myself. It was inspected by myself & others. There were no cracks or damage prior. I tried contacting the dealership with no response. No warning lamps.

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)

My rear window in Acura RDX 2020 shattered spontaneously.

My car was parked and off at a local park, I loaded my [XXX] son in the backseat of the car and then I got into my car. Before even turning car on I heard a loud pop sound and got out to look around and then realized it was the back windshield shattering. Apparently this is a known issue with Acura where the rear windshield will spontaneously shattered for no reason. Safety wise this is a concern since I have a child in the back seat and glass is shattering into the car as well as outside on pavement . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The rear glass in my 2020 Acura RDX Aspec randomly shattered when I closed my rear driver side door. My car was not running and hadn’t been running for over a hour and there were no signs of impact to the glass. There is a TSB from Honda about this being an issue already. I bought the car used and have owned it for a year. My extended warranty doesn’t cover the rear glass. It was going to cost over $1000 to fix as the dealership would not cover the cost and my car is out of its factory warranty. Didn’t have much choice but to use Safelite. Now there are glass shards stuck in my tailgate and apparently no way to remove them without removing the glass from the tailgate and removing the tailgate from the vehicle. Other complaints show that this can also happen while the car is running and in motion which seems like a major safety concern. With the glass shards stuck in the tailgate my car has been devalued by no fault of own. Honda knows this is an issue but will not issue a recall and it could also be a safety issue.

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.

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)

Rear windshield shattered while car was parked. Entered car, closed door, hit start button - rear windshield spontaneously shattered. Called dealership where RDX was purchased - They recommended contacting Client Services. Filed complaint with Acura Client Relations - received case#. Took vehicle to a local dealership per their instruction - sent report to Acura. It's been 3 days - no resolution - no case manager assigned - no loaner supplied. No prior issues to note with windshield. Did see many issues such as this one online. Getting the run-around from Acura.