Vehicle running, both driving and stationary, dash indicated three warnings: "adaptive cruise control system problem", "collision mitigation braking problem", "road departure mitigation problem". all three systems were nonfunctional. Dealer advised to drive through a car wash before coming in for repair. The car wash appears to have worked, but this is absurd! every time it rains or car is dirty, the safety features don't work? didn't see this disclosure when I bought the car or when I paid for these features.

- Mckean, PA, 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

Leased 2018 Honda Accord in October, 25 miles later had checked engine light on, took it back to the dealer, emission hose wasn't attached properly. After 900 miles the wheel alignment went out ( I did not hit any pot holes) took it back to the dealer, according to the dealer one the rod wasn't set right, now it's January 2019 and have 4000 miles yesterday the car started to supporter and all the warning started flashing auto high beam, adaptive cruise control, collision mitigation, road departure mitigation....all this sing said see your dealer..guess what I called the dealer first thing this morning..today is January 24 2019 still waiting to hear from the dealer all this technology is totally useless... I had 2002 Honda Accord with 310,000 miles and no technology

- Holbrook, NY, 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

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

Collision detection system failed, works fine after restart. Issue occurs every 70 miles and requires a restart to fix.

- Plano, TX, USA

As I was pulling out the garage from the san francisco international airport heading towards the highway to san francisco the miles per hour is 30 entering and then 65 mph when you get on highway. The dash board indicates the wrong miles for speed it said 100 mph. It stayed like that for more than 5 mins. I already had a previous situation with this vehicle where the braking systems engaged as I was on highway in 05/13/2018, and almost caused my life and others behind me, there was significant damage from being rear ended and over 18K worth of damage but Honda dealer keep saying nothing was found faulty! I had them turn 'off' all safety modes cause I'm afraid it will happen again but it keeps coming back 'on'. it yanked me several times when no other car is around me. The braking light appeared several times already since I got it back, and it's like they don't believe you. Now after all this I'm stuck with a faulty car I'm really thinking about getting a lawyer on this. And my speakers seem not to be right either the sounding is very low compared to when I got it. Only 2000 miles and this car been a pain. Physically and mentally! and did I mention that my airbags didn't work from first incident I reported. After car was crushed in from being hit from behind. Nope they failed too.

- San Francisco, CA, USA

Adaptive cruise control(acc) stops working with error "collision mitigation braking system problem. See your dealer."I was driving on interstate at 60mph with acc on and suddenly the error pops out. Error goes way when you restart the car. But repeats again intermittently. You cannot use acc again until you restart the car.

- Columbus, OH, USA

Two separate issues: 1) with only 2,400 miles on the Accord, on October 7, 2018 it suddenly lost power 2 or 3 times over a 60-mile stretch of the busy 405 freeway, each time slowing from 65 mph to approximately 30 mph or less despite maintaining even pressure on the accelerator. The car did not respond to pressure on the gas pedal. No cruise control was used at any time. The sudden deceleration could have caused a serious accident. 2) on November 30, 2018, I attempted to resume motion after stopping for a red light. The Accord's gas pedal failed to respond for approximately 5 to 6 seconds, then suddenly lurched forward. This also could have caused a serious accident.

- La Palma, CA, USA

The contact owns a 2018 Honda Accord. While driving 70 mph with the adaptive cruise control function engaged, the vehicle decelerated. The contact stated that the failure recurred several times. The contact stated that the instrument cluster blacked out on several occasions. The vehicle was taken to zimbrick Honda (located at 1601 w beltline hwy, madison, wi 53713, (608) 273-2555) to be diagnosed, but the mechanic was unable to retrieve a fault code or duplicate the failure. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 2,000.

- Waterloo, WI, 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

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

Driving my new 2018 Accord ex-L 2.0 in the left lane on I65 going South toward lafayette in on Friday October 5. there were two southbound lanes. Conditions were wet but it was not raining hard at the time. Had acc and other safety features on. Was passing a semi (that was going about 70-71 mph) at about 75 mph when a car came up behind me going much faster than me. I accelerated to move in front of the truck and immediately lost all acceleration. The small yellow check engine light came on and I was steadily losing speed. I maneuvered over to the right shoulder going about 50. Had to keep the engine revved at 3000 RPM and still was steadily losing speed while driving on the shoulder. Eventually pulled off at the first exit after about 2 miles on the shoulder and was going about 15 mph at the time. Turned off the car, waited for a few minutes, and started it up. It drove fine and the engine light stayed off. I had my wife and two daughters in the car. We easily could have caused an accident on a busy two-lane interstate with many semis. Dealer says there are no codes to check from the cel and that all hoses, etc are connected and that the car is fine. It wasn't fine when it lost power on the highway. I suspect an electrical problem or something with the fuel pump.

- Wauwatosa, WI, 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

While driving at highway speeds with acc (adaptive cruise control) enabled and lkas (lane keep assist) enabled and passing a car and another time an 18 wheel truck, the car suddenly and abruptly braked to slow down 5 mph. The road was straight and no cars were in front of me. This was a very dangerous situation because cars were behind me and they all had to react to slow down. T

- Corning, NY, USA

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