2024 Acura ZDX Electrical System Problems

My husband was driving on a small road and we were going about 25mph when he tapped the brakes the car jumped forward and the brakes did not catch. We lunged forward almost crashing into another car. No warning lights appeared. Driving conditions were normal, dry roads. Brought it into the dealership again for the same issue that we brought it in for less than 30 days ago.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The failed component is the drive motor inverter cooling system, specifically the drive motor inverter cooler (OEM part number 87821986). This component is responsible for regulating temperature within the high-voltage electric drive system. The vehicle is currently at the dealership with the repair order open, and the part has not yet been replaced due to national backorder status. The vehicle and failed component are available for inspection upon request. 2. How was your safety or the safety of others put at risk? The failure triggered a “High Voltage System Warning” message. This warning indicates a malfunction within the electric propulsion system, which controls vehicle movement and power delivery. A malfunction in the inverter cooling system can lead to: Loss of propulsion Sudden power reduction Vehicle shutdown while driving Potential overheating of high-voltage components Because this is a $75,000 electric performance vehicle with only approximately 5,100 miles and four months of ownership, a critical high-voltage system failure creates a serious safety concern. I do not feel the vehicle is safe to operate, and I have refused to drive it under these conditions. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The issue was diagnosed and confirmed by an authorized Acura dealership service department on January 29, 2026. The dealership determined that the drive motor inverter cooler requires replacement. The repair order remains open because the required OEM part is on national backorder with no confirmed ETA. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by the authorized Acura dealership service department. The manufacturer, American Honda/Acura, has been notified through a formal customer relations

Was trying to unlock the vehicle but it wouldn’t unlock the doors with the remote. Had to crawl through the trunk to access the car. Got a “door latch system service” maintenance error on the screen after the dealership had “fixed” it. This is a huge safety concern as this car is electric and if it does not unlock from the inside, can cause the passengers to be stuck in the car.

On Wednesday, [XXX], I was driving near an intersection. There was a vehicle in front of me; however, they were accelerating as was I and at approximately the same speed. For no apparent reason, the automatic emergency braking activated and slammed on the brakes for absolutely no reason. This not only scared myself, but my [XXX] daughter in the back seat, and we almost were rear-ended by the car behind us. It was almost as if I was "brake-checking" the person. Both my daughter and I complained of neck pain (almost felt like whiplash) as well as a headache following this incident. There was absolutely no warning that this was going to happen. There were no messages, lights, or any other issues at the time. While this incident has only happened one time, it has happened one time when the vehicle has less than 3,000 miles on. This can quickly become an issue of someone getting rear-ended, or potentially even a road rage situation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am submitting this complaint regarding serious safety issues with my vehicle. After a recent 180-mile trip, the car initially functioned without issue during local driving. However, on the morning of February 16, 2025, I encountered multiple warning messages at startup, including "Service Brake Assist," "One Pedal Driving Unavailable, Use Brake for Stopping," and "AUTO HOLD Unavailable." These warnings indicate potential braking system failures, which raise major concerns about the vehicle’s safety and reliability. Additionally, several key safety features became inoperable, including Adaptive Cruise Control and Acura Watch 360 (Supercruise). These features are critical for safe highway driving, and their unexpected failure compromises the vehicle’s performance and driver assistance capabilities. The fact that these systems became nonfunctional without warning creates a hazardous driving condition. Further compounding my concerns, the vehicle emits an electric, clicking sound when the brake pedal is depressed. This noise originates from under the dashboard near the steering column and suggests a possible malfunction in the braking or electronic control systems. Given the nature of these warnings and the potential risk of brake system failure, I am deeply concerned that the vehicle is unsafe to drive. I am seeking immediate resolution and will be bringing the car in for service as soon as possible. I urge the NHTSA to investigate these issues, as they pose a significant risk to drivers, passengers, and others on the road. Please advise on any next steps or potential recalls related to these failures. Thank you for your attention to this matter.

Upon pressing the on button the car would not go into drive or neutral from park. I noticed the red car light with an exclamation point staying on. After turning the car off/on it cleared and I was able to drive.

I am reporting a safety defect in my 2024 Acura ZDX, which poses a serious risk. The vehicle, purchased on 11/15/2023, has been in the shop for 35 days and has only 1,300 miles. It experienced recurring electrical failures, including blown fuses, door chimes, and ambient light and window malfunctions. After several weeks of diagnosis, the dealer discovered that a wiring bundle running from the engine compartment to the cabin, routed behind the steering column, was shorting out. The steering column assembly has a bolt that was rubbing against this wiring bundle, wearing away the insulation and causing several wires to cross and short. This short circuit was the cause of the blown fuses and other electrical issues. The dealer indicated that repairing the damaged wiring bundle would require extensive disassembly of the vehicle, suggesting this is a manufacturing defect. My concern is that, had this short circuit occurred while driving at high speeds, it could have led to a catastrophic failure, such as an electrical fire or loss of vehicle control. I have requested a Lemon Law buy-back, as the car has been in the shop for over 30 days and is still under warranty. Acura has acknowledged the request, and I am awaiting further action. Given the serious safety risk, I urge the NHTSA to investigate this defect and consider whether it affects other vehicles of the same make/model.