2025 HONDA ACCORD Forward Collision Avoidance Problems

Problem Summary: While using the vehicle’s Traffic Assist / Adaptive Cruise Control (system that controls acceleration and braking in traffic), the vehicle unexpectedly accelerated toward a vehicle directly ahead as if no lead vehicle was present. This created an imminent rear-end collision risk. The issue occurred twice in the same drive. Incident Details: On 18 dec 2025 at about 5-15MPH/ “stop-and-go traffic”], I was driving with Traffic Assist / Adaptive Cruise Control enabled, which normally manages throttle and braking in traffic. I was following a semi tractor (no trailer attached). The semi was approximately 15–20 feet in front of me. While the system was engaged and operating normally moments before, the vehicle accelerated forward as if the lane was clear, despite the semi being directly ahead. I had to apply the brakes manually to prevent a collision. A short time later in the same traffic situation, the vehicle did it again—it accelerated toward the same type of lead vehicle and I again had to brake to avoid rear-ending it. During the second event, I observed the instrument cluster / driver display showing the lead semi incorrectly identified as a passenger car instead of a truck, and the display showed that “car” accelerating away, which was inaccurate and did not match real conditions. This suggests the system may have misclassified or failed to track the lead vehicle, leading to unintended acceleration.

While driving in Adaptive Cruise Control, a vehicle in the other lane was slowing down and turning right, but my car started applying the brakes for no reason. This has caused panic for me, since it was a 45 mph zone, and it was OK.

While driving in Adaptive Cruise Control, a vehicle in the other lane was slowing down and turning right, but my car started applying the brakes for no reason. This has caused panic for me, since it was a 45 mph zone, and it was OK.

While driving in Adaptive Cruise Control, a vehicle in the other lane was slowing down and turning right, but my car started applying the brakes for no reason. This has caused panic for me, since it was a 45 mph zone, and it was OK.

The issue involves the adaptive cruise control and automatic emergency braking systems. When engaged, the system intermittently and unexpectedly applies full braking force while I am changing lanes on the freeway, even when no vehicle is directly in front of my car. This has occurred multiple times at highway speeds, causing the car to slam on the brakes abruptly, which poses a serious safety risk particularly when other vehicles are following closely behind. The issue most commonly happens when the adaptive cruise control is active, but it has also occurred occasionally when the system is not engaged. There are no consistent warning messages or error indicators before the event, aside from the brief flashing of the emergency brake light at the moment of braking. The problem has not yet been inspected or confirmed by a dealer, manufacturer, or independent service center.

The issue involves the adaptive cruise control and automatic emergency braking systems. When engaged, the system intermittently and unexpectedly applies full braking force while I am changing lanes on the freeway, even when no vehicle is directly in front of my car. This has occurred multiple times at highway speeds, causing the car to slam on the brakes abruptly, which poses a serious safety risk particularly when other vehicles are following closely behind. The issue most commonly happens when the adaptive cruise control is active, but it has also occurred occasionally when the system is not engaged. There are no consistent warning messages or error indicators before the event, aside from the brief flashing of the emergency brake light at the moment of braking. The problem has not yet been inspected or confirmed by a dealer, manufacturer, or independent service center.

The contact owns a 2025 Honda Accord. The contact stated that while driving at any high speeds, the collision mitigation braking system (CMBS) engages independently. In addition, all 4 tires lock, and the emergency brake engages. A dealer was contacted. No warning light illuminated; however a warning message to "brake" would illuminate, but did not give the contact ample time to engage the brake pedal manually. The contact mentioned she sustained whiplash due to the failure. The contact also mentioned that the failure occurred on three different occasions. During the most recent failure, the contact mentioned driving at 40 MPH, when the CMBS engaged independently. The vehicle was taken to the dealer, where it was diagnosed; however the diagnosis was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 2,111.

Mileage: 2,111

The Collision Mitigation Braking System (CMBS), which is part of Honda's advanced safety features, slammed on the brakes driving down the road at about 40 mph. When the vehicle slammed the brakes, me and the passenger were jerked forward with seatbelts on. Had a vehicle been behind us traveling it would have slammed into the back of my vehicle causing an accident. I will be contacting the dealer to address this problem as it just happened yesterday 8/3/2025. Although I did read that this complaint is currently under investigation. When the vehile slammed on the breaks, the Brake warning light came on right after the brake was slammed and immediately went off.

I was driving when a car pulled into a driveway. My car was not near this car and the brakes stopped very hard. At other times when the brakes should have stopped they did not. I had a major accident in Feburary and my safety features were on however the car did not stop when the other car turned into front of me causing total damage, broken thumb and torn ligament in my right hand.

I was driving when a car pulled into a driveway. My car was not near this car and the brakes stopped very hard. At other times when the brakes should have stopped they did not. I had a major accident in Feburary and my safety features were on however the car did not stop when the other car turned into front of me causing total damage, broken thumb and torn ligament in my right hand.