2018 HONDA FIT Forward Collision Avoidance Automatic Emergency Braking Problems

Component/System Involved: The multi-purpose camera system on my 2018 Honda Fit has malfunctioned, disabling critical safety features such as Adaptive Cruise Control (ACC), Lane Keep Assist System (LKAS), and Collision Braking Warning System (CBWS). Safety Risk: The failure of these systems creates significant safety risks. Without ACC, the vehicle cannot maintain a safe distance from other vehicles. The LKAS no longer provides steering assistance to help stay in the lane, and the CBWS cannot detect or warn of potential collisions. These malfunctions increase the likelihood of accidents, especially during highway driving or in heavy traffic. Problem Reproduction and Confirmation: The issue has been reproduced and confirmed by Norm Reeves Honda Cerritos during an inspection on 8/13/25. Inspection Details: The vehicle has been inspected by a dealer/service center, which diagnosed the problem. However, the manufacturer has not offered a resolution, nor has the vehicle been inspected by police, insurance representatives, or...

Multiple systems failure simultaneously. Lane Keep assist system, adaptive cruise control, braking system failure and automatic emergency braking as well as forward collision warning. This appears to be due to some fault within the system that multiple owners experience — many mentions of this issue in online forums. When taken to Honda they cannot even determine why but just start suggesting replacement of various systems to include the camera/radar but cannot guarantee this will fix. This is a safety issue and happens through no fault of the vehicle owner it just pops on one day and remains intermittent.

I have had my Honda fit for almost 7 years now and every winter I have an issue with the ADAS system. The car will throw a warning saying the sensor is obstructed and to clean off the windshield. Every time I check to make sure there's nothing obstructing the sensors. If I had to guess, the plastic covering is trapping heat from warming up the car and fogging the glass but I can't do anything about it since the plastic is not removable. It seems like a flaw in the design that operating the car with the heat on in winter can cause issues with the ADAS.

The automated braking system deployed at maximum braking without warning 3 times in 60 miles of highway driving (this was the first time I had driven this car on a highway). The road in front was completely clear of both cars and debris for several miles, it was sunny without glare, and the road was dry. The one common factor was that all 3 times occurred while passing a semi truck, as I pulled level with the cab. I was thrown forward against the seatbelt while the car slammed on its brakes while beeping and flashing the orange 'BRAKE' warning, dropping from highway speeds by about 25 mph before I was able to intervene. Thankfully there was also no traffic behind me, so I was able to recover control of the vehicle, but otherwise this would have absolutely caused a collision. Prior to this incident, there were no warning signs...