After my "brake system" light came on and the dealership denied it even though I had record of it, my car decided to see how fast it could hit the brakes. I was driving on the us-60 in phoenix, Arizona with adaptive cruise control on, traveling at 65 mph during morning rush hour, so it's still dark, on a 6 lane freeway. I can see brake lights far ahead, so I lightly tap my brakes to disengage acc and slightly slow the car down. The car had other plans and the brakes completely locked up like it was using the emergency braking for collision mitigation' but no warning/info showed on the dashboard as it normally does when emergency systems engage. So basically my car decided it wanted to slam on its brakes in the middle of a busy freeway, near bumper to bumper traffic, all because I lightly touched the brakes-- it was not abrupt, it was not a hard push... it was literally to turn off acc. I watched the rear view mirror as the SUV behind me was about to put my trunk in the engine compartment, but thankfully they were able to swerve into the hov lane next to us. They barely missed me and if that open spot was not there for them, I'd likely be seriously injured or dead. Honda has ignored my messages and it's time to let our government know this car has issues.

- Gilbert, AZ, USA

On 2/14/19, I was driving on a city street in a straight line at approximately 40mph. The car ahead of me stopped. I stepped on the brake and instantly the dashboard warnings lit up - adaptive cruise control, collision mitigation braking system, road departure mitigation system, and the brake - and the brake did not work so I could not stop. I rear-ended the car in front of me doing significant damage to the front of my car. The warnings were still visible after the crash and I took pictures of the dashboard as best as possible. The warnings say something about system not working and to see a dealer. The same warnings appeared on 2/13/19 in the afternoon but disappeared on 2/14/19 in the morning. Other warnings of safety systems not active have appeared due to ice/slush but then cleared when the sensors were cleared, but these new warnings are different. At least twice, maybe three times in the past few months, the car would suddenly brake and slow down with nothing in the road or in front of the car. My bluetooth connectivity worked fine for first 2-3 months but then stopped and I couldn't reconnect the phone over the past two months. It seems like more than one system/electronics problem and seems like the warnings appeared at the same time as the brake not working as if it was more than an alert but a system (systems) no longer functioning at all. The brake worked after the accident when the car was restarted.

- Canton, MI, USA

My collision mitigation system randomly fails which pops up an alert and disables my adaptive cruise control and automatic braking. It has happened various times when adaptive cruise control has been engaged with different environemental situatuons (day and night, sunny and cloudy). Turning off the engine and restarting typically corrects the issue for a time but it continues to fail intermently.

- Plano, TX, USA

1) when depressing the brake in motion or from a parked position there is a 'clicking' noise that happens intermittently. It sounds like a gear is stuck or something is stuck. It doesn't happen every time but it happens often enough that it is noticeable and does not sound like a normal noise. 2) Honda sensing light will flash even when no object is approaching and will continue to flash.

- East Brunswick, NJ, USA

Collision mitigation braking system problem, car brakes by its self, was driving at 75mph and car slamed on brakes to 35 on us 71 almost caused an accident. Also monitor on dash that has home, nav, audio settings shuts off by its self and reboots.braking problem happens on cruise control and normal driving. I photo the dash 5 times when collision mitigation went off in a 5000 mile period.

- Manalapan, NJ, USA

In the states where it snows, the car collects large amounts of snow on the front, and knocks out the radar system for the lane departure detection system, witch also is for the braking system, that helps with cruise control and any close encounters. I am not sure if it actually affects the cruise control because in the snow is not a time to use it.

- Canton, OH, USA

While driving on the interstate at approximately 40mph in heavy traffic the following warning indicator appeared, "collision mitigation braking system problem. See your dealer." The vehicle was in motion at the time and the brakes had not been applied. This did go out after turning the car off and restarting it. I took it to a Honda dealer but they would not help since the warning message went off. However, it appears others are having similar issues as I am and nothing is being done to address or correct it.

- Spotsylvania, VA, USA

Collision mitigation braking system problem while on cruise control it will disengage and this error will show up also braking light flashes on and off with nothing around or near the sensors.

- Village Of Lakewood, IL, USA

The car has a sensor for breaking. On several occasions I have been driving and the car breaking system comes on making the vehicle come to a sudden stop. During several of these dangerous breaking events no vehicles or objects were in front of me. I have almost been rare ended because of the breaking. I have noticed that even S shadow from a tree can trigger the sensor to make the breaking system turn on making the car come to a sudden stop. This is extremely dangerous and there is no way to turn this feature completely off. When you turn it off it resets once you turn the ignition to start the car again. This recall needs to happen now before someone gets injured or killed.

- Deerfield Beach, FL, USA

The collision mitigation braking system has completely failed twice on my month old 2018 Honda Accord. When this fails, the cruise control is also deactivated. Both times the car was in motion with the adaptive cruise control active.

- New York, NY, USA

I live in rochester NY and even with very light snow that is not even collecting on the roadway I get an urgent notification that crash avoidance and any radar based safety systems are compromised and not available at this time. This is due to the radar unit being interfered with snow collection as it is in the shape of a square cup and it collects snow like a scoop. There is no heating element on the unit at all to keep it clear of snow and it's location is such that it is rendered totally useless in any snow what so ever. BMW, Mercedes and Audi all either have hidden their units behind items that are heated for northern climates or the radar unit itself is gently heated below a particular temperature to avoid loosing all safety systems. This is simply not acceptable in a modern car and I would ask NHTSA to look into with Honda recalling all northern cars to change the radar unit to a heated version or to relocate it behind an emblem or something that doesn't collect snow like a scoop. It is a very poor design and impacts all distance and crash avoidance systems present on the vehicle. This is a 2.0 touring edition with every available option so it is not for a lack of spending money for safety that's for sure. The dealer said they have received many complaints about this same issue and are telling people it's made that way and frankly the sensor should be heated in northern climates. Nice!

- Webster, NY, USA

Since purchasing the vehicle in July and especially over the course of the last two months the car has been exhibiting errors with the cpu (Honda sensing) system on board. The transmission also seems to exhibit issues which I have taken up with the dealership on two occasions where it appears to shift hard under light acceleration and even under passing power. Also, upon accelerating, the car will seem to bog down like it has a air intake issue(sensation feeling) it does it from stop and go at times and also when at speed. I have noticed that when it rains it seems to be even more pronounced as well. The other issue has been the Honda sensing. As of late I have found myself turning off certain "safety" features out of fear of them malfunctioning after two freak incidents. Twice when at speeds on the hwy, the emergency mitigating brake has engaged with no traffic around or in front me, basically slamming on the brakes which is extremely dangerous another time the steering has tried to yank me into another lane thinking I have gone off the road, the road mitigation system. These issues could have proven very dangerous in both situations if vehicles were next to me or behind me and these issues with a brand new car are not making me feel safe to drive the car. Also, another new item which I have caught on camera is the radio head unit has now began to shut off intermittently during normal operation for no apparent reason or cause. I have had the recall on the back up camera completed already. But these errors still continue. The car is going to the dealership on Thursday, 11/7/2018 to get these looked into, but this is the 3rd time the car has had to go to the dealership since purchase in July for non regular maintenance. I am going to only deal with this a few more times before I hire a lemon law attorney.

- Charlotte, NC, USA

Driving down the road at 75 miles an hour and the brake system engaged. No cars around. Had another vehicle (especially tractor trailer) there would have been a serious collision. I do not want this vehicle anymore. Dealer says its not a warranty problem. Serious safety concerns

- Abbottstown, PA, USA

The contact owns a 2018 Honda Accord. While at a stop light, the vehicle stalled and the transmission and brake warning indicators illuminated. The vehicle was restarted and was able to drive normally. The vehicle was taken to Honda of concord (located at 7650 bruton smith blvd, concord, nc 28027, (704) 774-4538) to be diagnosed, but a failure code could not be found. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 37,000.

- Charlotte, NC, USA

I was driving down a busy road in my town and no cars were in front of me and I did not lane departure at all and the car suddenly came to a complete stop almost for no reason thankfully no cars were behind me. This also happened again when I was on the freeway there was no car in front of me and the car behind me was coming up fast luckily they noticed my car braking and got over. Sometimes my computer system shuts off and my radio and my whole dash if frozen I can't do the touchsceeen or any of the side buttons as none of it will work they only way for it work is to turn my car off and turn it back on. The backup camera also takes a while to go on I put my car in reverse and the screen is black and I put it in park and reverse again and it works perfectly fine.

- Linden, CA, USA

Automatic emergency braking took car from 60 to 0 on highway (route 65N in nashville). Luckily no one was behind me (it was 6am) or I could have been rear-ended. I could not accelerate or control the car at this point and came to a complete stop. This is the second time this has happened in the last month. This turns a touted safety feature into a hazardous feature. Planning on a dealer visit this Friday

- Brentwood, TN, USA

While driving with the cruise control on the collision mitigation and braking system will intermittently turn off and disable the cruise control. Dealer says nothing is wrong, claim the sensors are overloaded. This can happen on bright sunny days, cloudy days and at night. Sensor on front of car is clean; no bugs, smears or liquids. Will reset with a stop/start of the engine. Code check revealed. UO401-53 temporary stop of integrated driver support system -- received stop request by pgm-fi system. Error code 401-93 temporary stop of integrated driver support system -- received stop request by pgm-fi system. This happens only when the cruise control is on and moving. This has happened at least 12 times in the past 8 months, most recent was today.

- Navarre, FL, USA

5 braking error messages appeared after being parked for 4 hours: Electric parking brake system problem, brake system problem, brake hold system problem, anti-lock brake system problem, vehicle stability assist system problem. All errors directed me to "see your dealer". the vehicle operated perfectly prior to this. I was unable to start the car or even lock it after these errors appeared. The battery was also drained because these messages kept appearing.

- Salamanca, NY, USA

Failure of front crash mitigation, lane deparure mitigation system while car is moving. Sudden deceleration from engine to electric at highway speeds.

- Pflugerville, TX, USA

Monday September 24th, 2018, I was traveling on U.S. highway 19 and a vehicle turned off about a half mile ahead of me while I had the cruise control engaged. The vehicle had completely cleared the road and my car slammed on brakes causing everything in the vehicle to be thrown into the floorboard. Had there been a car behind me, the car would have rear-ended my vehicle. There continues to be an issue where the sensor recognizes something in the road that is not there or a vehicle that has already cleared the road and slams on brakes. This creates a serious safety issue and is damaging on the brakes. I do not feel safe driving with this system engaged because I do not know when the vehicle will slam on brakes causing other drivers to rear-end me.

- Chiefland, FL, USA