2019 Honda Accord forward collision avoidance problems

“I own a 2019 Honda Accord Touring 2.0T with approximately 75,500 miles. I brought the vehicle to Ryan Honda in Monroe, Louisiana, for Honda Campaign 26-091, which involved a software update to the ACC/CMBS Honda Sensing system. Before this campaign was performed, the vehicle had no ABS, VSA, brake-system, adaptive-cruise-control, collision-mitigation, or related warning messages. Approximately six hours after the dealer completed Campaign 26-091, multiple braking, stability-control, and driver-assistance warning lights/messages appeared. I returned the vehicle to Ryan Honda. The dealership diagnosed a failed VSA modulator/control unit and initially quoted approximately $1,785 for replacement. Because the failure appeared only hours after Honda performed software work involving interconnected driver-assistance and braking systems, I questioned whether the recall procedure, programming process, electrical conditions during programming, or resulting module communication could have contributed. The matter was escalated to a Honda representative, who reportedly consulted Honda engineering. I was told Honda engineering determined that Campaign 26-091 and the VSA…”

“the warning goes for everything that is on the dashboard. there are no safety features for the car that helps to protect the car and other cars. there are no warnings. this car is dangerous for everyone. no emergency brakes.”

“I own a 2019 Honda Accord Sport 1.5T. While operating my vehicle, multiple safety-system warnings appeared on the dashboard at the same time. The vehicle displayed “Brake Hold System Problem,” “Adaptive Cruise Control System Problem,” “Collision Mitigation Braking System Problem,” and “Road Departure Mitigation System Problem,” each instructing me to see my dealer. These warnings concerned me because they involved the braking system and several Honda Sensing safety systems simultaneously. I parked the vehicle and turned the engine off. When I restarted the vehicle, all of the warnings had disappeared and the dashboard appeared normal again, even though no repair had been performed. The vehicle has approximately 72,980 miles. I have photographs documenting the warnings while they were displayed. I am reporting this to NHTSA because the problem was intermittent and affected multiple braking and driver-assistance systems at the same time. I am concerned that the systems could malfunction again while driving, including the braking/collision-mitigation system. I would like this incident documented as a potential safety defect involving the 2019 Honda Accord.”

“CAR SUDDENLY TRIES TO STOP ON CLEAR ROAD GOING FREEWAY SPEED OF 70MPH. I'M TRAVELLING ON THE HOV LANE WITH FEW VEHICLES ON THE LANE TO MY RIGHT. THERE ARE NO VEHICLES IN FRONT OF ME.”

“*brake mitigation system , an yes it is available for inspection. *Car suddenly braked hard on a clear smooth road. Going 45 MPH *No it has not. *No it hasn't. No warning until a big BRAKE lit up on my speedometer”

“I am submitting a safety complaint regarding my 2019 Honda Accord LX. While driving, a yellow “Brake System” warning light appeared on the dashboard. The vehicle continued to drive normally, and no obvious braking problems were noticed at that time. However, the warning remained illuminated while driving. In addition, I experienced intermittent episodes where pressing the accelerator pedal did not immediately increase vehicle speed. There was an approximately 1–2 second delay before the vehicle responded to throttle input. This occurred while the vehicle was in motion and could create a potentially dangerous situation in traffic. After turning the vehicle off and restarting it, the warning light disappeared. The issue appears intermittent. The brake fluid level is normal, and no diagnostic trouble codes were detected with a basic OBD-II scanner when the warning was present. After researching the issue online, I found multiple owners reporting similar symptoms involving brake system warnings and temporary loss of accelerator response on Honda Accord vehicles. I am concerned that this may indicate an electrical, braking system, sensor, or software-related defect…”