2024 Acura ZDX: false forward collision warnings

Filed Nov 6, 2026 · Brakes, Driver assistance · CA · crash · 1 injury

My daughter was driving on the freeway when traffic ahead suddenly slowed. The vehicle issued a forward collision warning approximately three seconds before impact, and she immediately attempted to brake. She reported significant brake pedal pulsation and resistance while attempting to stop. Dashcam footage shows the vehicle's displayed speed decreasing from approximately 49 mph to 44 mph before impact. Additionally, the automatic emergency braking system did not appear to intervene as expected. I recently discovered the federal safety agency Engineering Analysis EA26006, an active investigation involving the 2024–2026 Acura ZDX and potential braking system failures, including reduced brake assistance and extended stopping distances.

Filed Sep 14, 2026 · Driver assistance · CA · 1 injury

I am reporting repeated unintended automatic emergency braking in my 2024 Acura ZDX. The vehicle was leased new on April 9, 2025 and currently has approximately 9,500 miles. The system involved appears to be the Forward Collision Warning/Automatic Emergency Braking system and related braking controls. The vehicle is available for inspection upon request. On September 14, 2026, while driving at less than 25 mph, the forward collision warning suddenly activated even though there was no pedestrian, vehicle, or other apparent obstruction requiring emergency braking. Immediately after the warning, the vehicle automatically applied the brakes abruptly. The sudden braking caused the driver to be thrown forward, and she experienced neck pain afterward. This is not an isolated incident. The vehicle has experienced similar unintended collision warnings and/or automatic braking events multiple times and at different speeds, including at higher roadway and freeway speeds. These events create a serious safety risk because sudden, unexpected braking can cause the vehicle to be struck from behind, can cause injury to the occupants, and could potentially cause the driver to lose control of the vehicle. The vehicle has been taken to the same authorized Acura dealership at least twice specifically for this unintended braking problem. The dealership has performed software updates or other software-related service in an effort to correct the problem, but the unintended braking has continued. The vehicle has been presented to the dealer multiple times for this specific complaint and repair attempts were made. Acura has now been notified directly of the continuing safety problem and has opened a case. The vehicle is being made available to the Acura dealership again for inspection and diagnosis. There were no warning lamps or messages indicating a malfunction before the most recent event.

Filed Aug 10, 2026 · Body, Electrical · FL

CONTEMPORANEOUS NOTE 2024 ACURA ZDX – AWD - the federal safety agency Recall No. 26V306000 Date: XXX Time: 12:25 PM On XXX at approximately 12:25 PM, I contacted Miami Acura Service at [XXX] to schedule the recently issued rear-view camera safety recall 26V306000 for my 2024 Acura ZDX. I was advised by the dealership representative that no appointments were being scheduled for the recall at this time because the required parts and tools had not yet been received by the dealership. As a result, I was unable to schedule the recall repair. However, she said she would take my number and put me on a waiting list when the hardware came in. Today is XXX and I have not been contacted by the dealer for this safety recall. I am still experiencing other intermittent issues that are non-related and have not been identified by Acura: ghost braking, improper shift status, collision mitigation without anything around, conditions not ready to shift, press start button and try to shift and gears are frozen. This was brougth to the attention of the Service Dept at Miami Acura and here we are 4 month later the vehicle is experiencing intermittent issues and the Safety Recall has not been applied in over 45 days. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 29, 2026 · Driver assistance · PA · crash

On [XXX] at approximately 700 miles on a 2024 Acura ZDX A-Spec AWD (VIN [XXX] ), the Collision Mitigation Braking System (CMBS) failed to engage during a collision event. The system did not provide forward collision warning and did not initiate automatic emergency braking before impact. The collision resulted in minor damage to my vehicle. There were no injuries. CMBS is a manufacturer-installed automatic emergency braking system designed and marketed as a primary collision-avoidance safety feature; its failure to engage in an impending-impact scenario is a safety-critical defect. This CMBS failure is one of multiple safety system defects on this vehicle. Beginning at approximately 200 miles, the rear Advanced Driver Assistance System (ADAS) developed progressive failures, including: Rear Cross Traffic Alert and Rear Park Assist intermittently non-functional Blind Spot Monitoring failures on both left and right sides (DTCs U197A-00 confirmed by independent pre-repair diagnostic scan) A stress-cracked rear parking sensor housing A factory wiring harness routed incorrectly from the vehicle side, causing mechanical tension on the rear parking sensor connector and mounting bracket (confirmed in writing by the Acura dealer service manager on Repair Order [XXX][ dated February 25, 2026) American Honda Motor Co. (AHM) refused to honor the factory warranty, asserting without supporting forensic evidence that the defects were caused by an unspecified "outside influence" or "third-party repairs." I pursued and won binding consumer arbitration through the National Center for Dispute Settlement (NCDS Case [XXX]). On March 30, 2026, the arbitrator ruled that AHM had not met its warranty obligations and that no proof of any outside influence had been offered. The arbitrator ordered AHM to perform warranty repair of all the affected safety systems plus reimbursement of a diagnostic fee. AHM has not complied with the binding arbitration award. As of INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S

Filed Feb 18, 2026 · Brakes, Driver assistance · FL

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.

Filed Nov 25, 2025 · Driver assistance · 200 miles · CA

The contact owns a 2024 Acura ZDX. The contact stated while driving at various speeds, the Collision Mitigation Braking System (CMBS) activated the Automatic Emergency Braking (AEB) erroneously. There was no warning light illuminated. The contact stated that the failure occurred more frequently while reversing and occurred intermittently while driving forward. The contact stated that his wife also owned the same model vehicle, which had experienced the same failure. The contact had taken his wife's vehicle to an unknown local dealer, where it was suggested that the Forward Collision Avoidance system should be disabled. The contact had not taken the vehicle to the dealer to be diagnosed. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was approximately 200.

Filed Nov 25, 2025 · Driver assistance · 200 miles · CA

The contact owns a 2024 Acura ZDX. The contact stated while driving at an undisclosed speed, the Collision Mitigation Braking System (CMBS) engaged erroneously. No warning light was illuminated. The contact stated that the failure also occurred while reversing. The vehicle was taken to an unknown dealer; however, the failure could not be duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 200.

Filed May 30, 2025 · Driver assistance · NY

The forward collision warning and forward collision braking malfunctioned several times triggering false warnings and unnecessary hard braking. My safety was put at risk because the vehicle came to an abrupt, violent stop while in traffic and applied the parking brake. This action not only caused items in my vehicle (e.g., phone, water bottle, sunglasses) to fly to the front of the car and land in the footwells, but also hurt my neck and head from the severe and harsh movement. Additionally, this sudden unpredictable full stop creates a very high risk of the vehicle following me rear ending my vehicle, resulting in further injury and property damage. The problem has not been reproduced or confirmed by a service center as I have not had time to bring the vehicle in for service yet. The vehicle or component has not been inspected by the manufacturer, police, or insurance representatives. There were not any warning lamps, messages or other symptoms of the problem prior to the failure. However, the emergency brake warning has triggered several times without activating the brakes.

Filed Mar 22, 2025 · Driver assistance · CA

I am writing to report a serious safety defect in my 2024 Acura ZDX concerning the Forward Collision Alert and Automatic Emergency Braking. The system exhibits hyper-sensitivity, leading to unwarranted and dangerous automatic braking events. On 3/17/25, at approximately 4pm PT, I was driving my Acura ZDX on US 101 at 65 mph. A vehicle in front of me changed lanes into my lane. There was ample space between my vehicle and the vehicle that changed lanes. However, the Automatic Emergency Braking engaged the brakes forcefully, bringing my vehicle to a complete stop in the middle of the freeway. The vehicle essentially stalled for approximately 5-10 seconds, and I was unable to accelerate or move forward during this time. This created a highly dangerous situation, as I was vulnerable to being rear-ended by oncoming traffic. This incident occurred even though I had disabled the Forward Collision Mitigation System through the vehicle's settings. The system's behavior indicates a severe malfunction or design flaw, as it overrides the driver's intent and poses a significant safety risk. The fact that the system engaged the brakes when it was supposed to be disabled is very concerning. This hyper-sensitivity and the inability to fully disable the Emergency Braking System are critical safety issues that could lead to serious accidents, injuries, or fatalities. I request that the federal safety agency investigate this matter immediately.