Owner-reported complaints naming the brake system, filed with NHTSA
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Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake. Every record below is an owner-reported complaint about the 2024 Acura ZDX submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 21 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
The braking system does not engage properly and is worse in the rain. When adaptive cruise control is on, the car does not slow down at every instance when there is a car in front slowing down. When the car finally realizes there's an object/car in front it then slips before engaging in traction control, which seems to make the car actually slide forward rather than attempting to stop immediately.
My 2024 Acura ZDX has an intermittent braking-related malfunction that causes the vehicle to jerk unexpectedly while slowing or stopping. The problem has occurred in stop-and-go traffic, on hills, and while reversing. The exact cause is UNKNOWN. This creates a serious safety risk because the vehicle does not always respond smoothly or predictably when braking. In traffic, the sudden jerking could cause a rear-end collision or make it difficult to maintain a safe stopping distance. On hills or while reversing, the unpredictable movement could cause the vehicle to strike another vehicle, pedestrian, cyclist, child, or object. The vehicle has also experienced unusually rapid battery depletion, raising concern that it could become disabled unexpectedly in traffic, severe weather, or an unsafe location. Any relationship between the battery issue and the braking problem is UNKNOWN. The vehicle has been taken to authorized Acura dealerships multiple times, including Acura of Westchester and Curry Acura. The condition was reported repeatedly. The dealers stated they could not duplicate it, even after an extended road test of more than 300 miles. No permanent diagnosis or repair was provided, and the problem remains unresolved. Acura/American Honda was notified and opened a corporate case. There were no consistent warning lights or dashboard messages before the incidents. Because the malfunction is intermittent and may occur without warning, I cannot predict when the vehicle will jerk or fail to stop smoothly. No crash or injury has occurred, but I believe this defect presents an unreasonable risk of collision and pedestrian injury. The vehicle is available for inspection upon request.
This is the most recent time that the automatic brake on my car kicked in for no reason. It has happened several times and I have made Acura aware of it, but this is the first time it has almost caused an accident because the car behind me almost rear-ended me. A Similar incident happened last year and I brought it in and they did nothing since they could not replicate it. I let the dealership know that there is a recall associated with this and they said that my VIN number does not match any recalls. I made it very clear to them that it is a safety issue and that it needs to be looked into in more depth in the only response they gave me was that sometimes the automatic brakes can be triggered by items that look like bicycles or people. In this case, there was a car in front of me and a car behind me, neither of which look like a bicycle or a person. It happened so quickly and so suddenly that I am not sure if any lights came on. The Acura client relations team so far has not been able to get a hold of a manager at the dealership and this remains unresolved.
The contact owns a 2024 Acura MDX. The contact stated that while driving at approximately 10 MPH and coming to a stop, the ABS activated unexpectedly and released brake pressure in the service brake system. The contact stated that the vehicle unexpectedly came to a complete stop. The dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the failure was associated with NHTSA Campaign Number: 24V614000 (Service Brakes, Hydraulic); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 10,080.
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.
2024 Acura ZDX Collision Mitigation Brake System will activate without warning engaging the parking brake. Has occurred intermittently while driving forward or in reverse. Dealership claims there are no codes and has advised that both front and rear systems should be disabled. Manufacturer states there are no software updates to address this issue. Failure milage approx. 100.
I’m reaching out regarding a serious vehicle incident that occurred in September 2024 involving my 2024 Acura ZDX. The vehicle i am leasing, accelerated forward into our property under circumstances that remain unclear and crashed into our garage, tearing down approximately half of the structure. During the event, the vehicle struck my girlfriend, causing her to sustain significant injuries, including a fractured femur, fractured tailbone, and a T12 compression fracture. There are several concerns regarding potential failure of vehicle safety systems, including lack of automatic emergency braking activation and no emergency call initiation. The vehicle remains in my possession and has not been repaired. I would like to explore whether a mechanical defect, unintended acceleration issue, or safety system failure may have contributed to the incident. Please let me know if you are available to review this matter. I can provide photos, documentation, and access to the vehicle for inspection.
I am reporting a safety concern involving delayed brake engagement on my 2024 Acura ZDX RWD. During normal braking, the brakes do not respond immediately. The vehicle slips and launches forward several times before braking force applies, and the traction control system activates prior to adequate deceleration. It feels like the brakes aren't catching properly. This condition occurs consistently and repeatedly, including on dry pavement, and is worse on wet pavement. It is not intermittent and does not require hard or emergency braking to occur. The delayed braking response creates a loss of braking confidence and presents a safety risk, particularly in traffic or during routine stops. I am concerned this may involve the brake control system, regenerative braking transition, or stability/traction control integration.
The contact owns a 2024 Acura ZDX. The contact stated that while driving at slow speeds and driving over a bump or an object in the roadway, the brake pedal would depress to the floorboard. The contact stated that upon approaching an object once the brakes had failed, the Automatic Emergency Braking system would activate, and the ABS and traction control warning lights would illuminate on the instrument panel. The contact had taken the vehicle to the dealer on several occasions for repairs, but the dealer failed to duplicate the failure. The manufacturer was notified of the failure and provided a case number. The contact had been working with the manufacturer through arbitration for a buyback of the vehicle. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 15.
The contact owns a 2024 Acura ZDX. The contact stated that while driving 35-40 MPH and depressing the brake pedal, the brake pedal went down to the floorboard, and the vehicle slightly responded, causing the braking distance to be extended and the vehicle drove through the red traffic light before stopping. There was no warning light illuminated. The contact was able to continue driving. The dealer was contacted, and an appointment was scheduled for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.
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)
Multiple times, while both reversing and driving forward, the vehicle has initiated hard emergency braking maneuvers when no emergency exists -- no rear or front cross traffic, no pedestrians. This is dangerous and could initiate a crash with other cars following the vehicle.
When backing up the car will slam on its brakes when there is NOTHING behind me. Most of the time it is when I am backing out of my driveway it will do it 2-3 times when nothing is there. It has done it a couple of times backing out of a parking space when nothing is there. I reported this to Acura but they didn’t do anything about it.
When hard braking the car doesn’t stop, you can feel the wheels lock up and it slides forward. Some times when stopping at slow speeds the car will lunge forward. I almost hit a car, went in an intersection and one time almost hit a person and I was only going 5-10 mph that time and I hit the brakes and the car slid forward. I am really scared and Acura says they test drove mine and a new one and they both do it so there is nothing wrong with it.
The automatic rear braking system on my 2024 Acura ZDX engages unexpectedly and without cause. It happens regularly when reversing, even though there are no obstacles, people, or vehicles behind the car. The sudden braking is jarring and creates a real safety concern, especially in traffic or tight spaces. I took the vehicle to my local Acura dealership, but they had no information or guidance on the issue. Despite this, many other ZDX owners are reporting the exact same problem on forums like Reddit, AcuraZine, and Facebook groups. This is clearly not an isolated incident and should be investigated immediately. The system is too aggressive and unreliable in its current state. It poses a risk of causing accidents or injuries. Acura must address this issue with a software update or recall before someone gets hurt.
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.
The parking brake continously engages when in reverse disabling the vehicle until you manually release it. This happened 6 times and I was not able to safely back out of a parking lot and had to call for a tow truck to take vehicle to dealership. Dealership scanned vehicle for codes but could not find an issue and told me that is part of the safety features. Not sure how safe it is to engage the parking brake 6 times and cause my vehicle to be in traffic. There were no obstructions around the car, so I feel this is a very dangerous malfunction.
The contact had received a 2024 Acura ZDX loaner vehicle from the dealer. The contact stated that after backing into the driveway, pressing the park button, activating the electronic brake system, and exiting the vehicle, moments later the electronic braking systemwas deactivated, and the vehicle began to roll down the driveway. The contact was able to re-enter the front seat of the vehicle and press the brake pedal to stop the vehicle. The cause of the failure was not yet determined. Upon returning the vehicle to the dealer, the dealer was informed of the failure. The manufacturer was not contacted. The failure mileage was 3,700.
The contact owns a 2024 Acura ZDX. The contact stated that while depressing the manual regenerative brake lever the braking system failed to activate and the driver had to depress the brake pedal to stop the vehicle. The contact stated that during the failure the message "Service Brake Assistance" was displayed. The contact stated that the BRAKE Hold feature and Adaptive Cruise Control were inoperable, and there was a ticking sound while depressing the brake pedal. The vehicle was taken to the dealer who reprogrammed an undisclosed software, but the failure persisted. The vehicle was returned to the dealer. The manufacturer was notified of the failure. The failure mileage was 320.
The contact owns a 2024 Acura ZDX. The contact stated after his wife had pulled out of the driveway and depressed the brake pedal, the messages "Complete Outer Brake Failure", "Top Speed 43 MPH" and "Stabili-trak Failure" were displayed. Additionally, several unknown warning lights were illuminated. The driver shifted into drive(D) to return into the driveway. The driver depressed the brake pedal, but the vehicle failed to respond. The contact stated that his son who was a passenger was in the vehicle at the time of the failure. The driver shifted to park(P), and the vehicle stopped abruptly. The contact's wife informed the contact of the failure. The contact then test-drove the vehicle and was able to replicate the failure. The contact stated that the warning messages and warning lights were no longer illuminated when the tow truck service arrived to the residence an hour later; however, the braking failure persisted. The vehicle was towed to the dealer, where the failure could not be replicated, and the cause of the failure could not be determined. The manufacturer was notified of the failure, and a case was opened. The manufacturer assigned an emergency technician to diagnose the vehicle. The vehicle was not diagnosed or repaired. The failure mileage was 390.
At 4100 miles our ZDX started showing the Service Brake Assist system warning, the auto-hold unavailable warning, and the one pedal driving unavailable warning. Took the vehicle to the dealership. Got the car back in 15 days and the problem persists. Dealership says no code was stored, yet the vehicle constantly clicks when the brake pedal is depressed. It also has a jerking sensation when coming to a stop. I'm concerned that there is a braking issue, so I avoid having my family use this vehicle.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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