Collision mitigation breaking system fails during operation of adaptive cruise control. The vehicle will no longer verify if a collision is going to happen, and can cause the vehicle to collide with a forward vehicle.

- Blackstone, MA, USA

On 3 seperate occasions the car has seen a shadow on the ground and slammed on brakes then releasing for no reason. There were no other vehicles around me on each occasion. I thought the car was stopping on a yellow light on the first incident but was told by the service manager that it doesn't do that. This is a very dangerous issue that needs to be addressed. I asked the service manager to disable it but was told he can't do that when it is possible because this is an added feature.

- Chicago, IL, USA

2018 Honda Accord exl. 1565 miles on odometer. Weather was sunny and 89F. I was driving vehicle on the interstate at approximately 65 mph with acc and lkas activated but being closely monitored as this feature is new to me. As the traffic was slowing down ahead the instrument cluster displayed "collision mitigation braking system problem. See your dealer" error message. I had to quickly apply the brakes to avoid a collision with the car in front of me. In the process of notifying dealership to seek out a solution. Very worried about this as a system designed to prevent front collisions almost caused one!

- Killingworth, CT, USA

Immediately after purchasing the vehicle in charleston, SC, I made a trip to atlanta. During the round trip I noticed on several occasions after making a stop, such as at a traffic light, when the light turned green and I pressed the accelerator there was no response. After 4 or 5 seconds the engine accelerated at such a rate that it was difficult to control. I knew that this problem was potentially very dangerous. In fact, I told my wife that she should never drive the car until this problem was resolved. After returning home from atlanta I took my car into the service department at rick hendricks's Honda in charleston, SC where I purchased the car. I explained the problem to the service technician and after several hours he told me that they had tested the car and that the problem I had was inherent to this Accord and I would have to live with it. He told me that I had been driving the car in econ mode and that this problem would not happen if econ mode was 'off'. so, I turned econ mode 'off' and began driving the car off the dealer lot and when I stopped at the first stop sign and then began proceeding, there was no response when I pressed the accelerator. I refuse to accept the fact that I have purchased a new car and have to live with a defect that the dealer says 'it is just the way your 2018 Honda Accord works'. I am driving an automobile that potentially might cause injury to myself, passengers in my car, and other vehicles as well.

- Summerville, SC, USA

Wife was driving on interstate in the left hand lane about 75 mph when a yellow light appeared on the dash and car lost engine power. Wife is unsure which yellow light came on due it happening so fast. She coasted across three lanes and made it to the shoulder. Car was towed to dealer and they cannot find anything wrong with it. There is 700 miles on the car. Dealer said it may have been road debris that caused collision mitigation braking system to take control of the car but nothing was recorded in the edr unit. Very unsafe.

- Anderson, SC, USA

I have revcieved the "collision mitigation braking system problem" multiple times. I have taken it to the dealer and they adjusted the brake and did a software update but I continue to get the same problem.

- Rosenberg, TX, USA

2.0 turbo : delay in acceleration when accelerator is depressed NHTSA # apas02142018901, item #10129330

- Manchester, CT, USA

When I crank car and pull off it jumps real hard and say collision mitigation system failure see dealer. I shouldn't have to keep turning brand new car off for it to do right. Please recall all Accord very bad Honda this one is horrible. Vehicle was on a regular street good condition miami fl. The side mirrors shake all the time. The music always take time to load. Defect in whole car please please recall before injury.

- Miami, FL, USA

All Honda sensing lights goes off and see the dealer message shown on screen.

- Clayton, NC, USA

Three times during the first 1500 miles the collision mitigation braking system has failed, disabling that feature and adaptive cruise control, displaying a large diagnostic on the electronic dashboard and telling me to see my dealer. In all cases I was driving in normal traffic on northern California freeways at cruising speed (twice on 101, once on 80). The first two failures occurred during daytime, the third at night. The weather in all cases was normal (no rain, snow, mud, ...).when I visited the dealer after the first two occurrences (when the car is turned off and then back on the condition clears) the dealer found no diagnostic codes or other problems. Then the problem occurred a third time. The dealer and Honda corporate say they have no idea how to fix it because of the absence of diagnostic codes.

- Berkeley, CA, USA

The contact owns a 2018 Honda Accord. While driving approximately 10 mph, the contact depressed the brake pedal and the brake collision mitigation braking system warning indicator illuminated. The vehicle failed to accelerate. The contact coasted the vehicle into a parking lot, turned off the vehicle, restarted it, and was able to drive normally. However, the failure recurred twice. The vehicle was taken to chapman Honda of tucson (4426 E 22nd St, tucson, AZ 85711), but the failure was unable to be diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure and provided case number: 06589496. The approximate failure mileage was 1,000.

- Tucson, AZ, USA