Adaptive Cruise Control problems of the 2019 Honda Accord

While driving my 2019 Honda Accord, after about five minutes on the road, multiple warning lights suddenly appeared on the dashboard. The emission system, brake system, power steering, tpms, acc, hill start assist, collision mitigation, and vehicle stability assist warnings all came on at the same time. The alerts caused concern for safety, as several major systems such as steering assist, braking, and driver-assist features appeared to malfunction simultaneously. The issue seems related to an electrical or charging system failure (such as the alternator or battery), since all of these systems rely on stable voltage to operate correctly. The incident occurred without warning and could have resulted in loss of steering assist or engine power while driving.

In 2 instances the car put on brakes for no reason. Nothing was in front of car. I was traveling roughly 70 mph and car slowed down and brake indicator came on, also going 75 with cruise control on and the system that brakes the car slowed the car down and then just quit working. Warning lights came on saying system failure but after car was turned off then turned back on there were no warnings.

My son was driving home from work when car suddenly went into limp mode with check engine light and all other safety light came on the dash. Driving around 50mph and my son nearly collided with multiple cars as the became hard to steer and brakes unreliable. Luckily no one was hurt this time. Car has 83k miles. Was taken to the dealer and diagnostics run and provided with a $5000. Repair to replace the head gasket due to coolant leaking into cylinder #3 causing misfires. I have reached out to Honda of America with the issue.

All warning lights turn on on the dash board. I replaced the battery, airbag module, and abs module and I'm still having the same issue.

The vehicle has an emission system error along with all other errors, car also hesitates to accelerate. Yes it is dangerous a failing turbocharger can result in a noticeable decrease in engine power, especially at higher speeds. Diagnostic : confirmed by dealership. The car was looked at the dealership mechanics nothing happened to where I need any others. It’s just been lagging getting up into speed etc. It popped up a month ago the emission light and went away. Came back two days ago which today is 6/20. Engine system problem tire pressure monitor system electric power steering problem cmbs problem adaptive cruise control problem cmbs problem all lights flashes on screen.

Every light on my dashboard came on at once. I took it to a Honda dealership for a diagnostic check and they said it was my turbo but every light is still on.

All warning lights have turned on my dash. Ive done research and this is happening a lot of people that own 2018-2020 Honda Accord 1. 5l.

All of sudden, no incident, no accident, a lot of things were disabled such as adaptive cruise control , forward collision warning , lane departure warning and more while I was out of town (long range highway travel). When I went to Honda dealership, they blamed a few things and fixed them (expensive), then they said that the front camera needed a calibration. It was expensive. After that aiming correction, everything works fine. The camera was not broken. It just needed recalibration, and it costed about a thousand dollars. I would say it was caused by the poor design, which is Honda's fault. I googled this issue and found a lot of Honda owners had same issued and charged 1k ~2k for it. I will report it separately, but my Honda odyssey has the exactly same issue now. I have 2 Honda cars, and both of them have the same issue. I strongly suggest that Honda should recall their front camera and they should reimburse the expense we already paid for it.

I feel like my car should be under recall it’s so many other who experiencing the same thing. All of my lights are on, on the dash. Check engine light down to my cruise control not working. As I drive it’s stalling and jerking. I went to the dealership to have my spark plugs and my fuel injectors replace and it started back doing the same thing. Spent thousands just to be going through the same exact thing.

Car did not slow down adaptively. Tried to hit the brakes hard and ended up needing to use the emergency brakes.

Misfire in cylinder causes blown head gasket.

After fuel pump failed to open, top of this year my vehicle began to stall. I had the recall issue fixed 5/31/2024 by Honda dealer staten island. Just a couple days ago my vehicle started stalling again.

If you are having this problem where every warning indicator is illuminated, codes scanned but no clear solutions to the “christmas tree dash board this is an ongoing issue with the 10th generation and there is no definitive “fix” recognized by Honda. Sometimes it is the battery, the alternator, the head gasket, the ecm, injectors…. The list goes on and on. Sometimes the repair fixes the issue, but based on research, the issue typically comes back shortly after the service department throws another part at the problem.

Vehicle acc, lane departure system and collision mitigation braking system all turn off and there is no recall. This has caused unwanted braking at times as well. Overall, this system is completely non-functional in my vehicle and I am seeing this issue with other people all over the internet. There has been a new battery installed, multiple attempts finding a solution and nothing on the scanner comes up. Why has this not been set as a recall? it is extremely dangerous!.

Car broke abruptly. Warning messages came up on dashboard including acc error, brake system error, collision mitigation warning.

I have was called steering sticking in my steering wheel when I’m driving and it stuck straight and I have to turn it a little bit. I have to kinda yank it just a tad bit because the steering is sticking is an issue with other Hondas. I’m having it also.

Honda is delaying the safety recall and because of that I am loosing money ! Honda is costing my business to loose money ! how this can be handled ? this car also ended up in the crash and now my car value is not the same and I am in negative equity.

My car will be driving down the road and all my lights will come on and go to fix the problem and they all come back on . I’ve had the car for two years and been in the shop majority of the time . First the front senor was bumped out so none of my safety equipment on the car did not work , all my lights where lit up and check engine was blinking and went to take to Honda dealership and they said they tightened the bolts and car is running good and I picked it up and 15 miles later all my lights came on blinking , this has been ongoing and I know online the years 2018-2021 have has similar problems. I have a warranty but I want to get this checked out for others as well.

All warning lights come on and engine lags. Lights come on every time and lags about every 10th time driven.

All 10 adas lights are on the dashboard. Two different Hondas are saying the car is not coding and can’t find a problem. I search the internet and a lot of people are having the same problem with their 2018/2019 Honda Accords.

While going west bound on i820 toll road. 6/8/2023 @ 5pm. While in adaptive cruise control. Cars 5 to 6 car lengths ahead of us were having to come to a quick stop due to debris on the road. The Honda started to break, then break aggressively, then the “break” notification light started to flash, and I lightly press the brakes. But the tire locked and we begin to skid (unnecessarily). I release the brake pedal. We stop skidding but the car continued to brake to a complete stop with no power to the accelerator. Causing cars behind us to stop aggressively to avoid from hitting us. We sat on the toll road for a good 5 to 8 seconds before power was regained on the accelerator. We never came more then 2 car lengths from the car in front of us.

All of the warning lights are on. The adaptive cruise control, e parking brake, tire pressure monitor, brake system performance, vehicle stability assist, electric power steering lights are all currently on. Brakes did not engage properly when braking. I had to swerve out of the way to avoid a collision.

Every single dash warning light is showing up on my car and I've had it looked at and claimed to be fixed but it has popped back up and I'm unaware of the problem and it's been this way since I've bought my car and I've read online a few others have had this problem.

Driving 70 mph down 1-70 in mo. And the car self brakes down to 40 mph in a matter of a second and nothing in front and thank god nothing in the rear of us this has happened 3 times total and is a wreck about to happen.

I have 2019 Honda collision mitigation braking system problems, other driver-assist technologies with 2019 Honda Accord vehicles also routinely issue false safety alerts. Honda sensing technologies include road departure mitigation system (rdm), adaptive cruise control (acc), lane keeping assist system (lkas), and traffic sign recognition (tsr) all issues my 2019 has . The dealer states it’s multi purpose camera module is at fault needs expensive replacement and labor in excess of $ 1800.

As I am driving over 50 mph in traffic my 2019 Honda Accord will automatically brake in the middle of traaffic almost causing accidents. The mitigation system will fail and prompt on the cluster electric parking brake problem, electrical power steering problem, rdm problem, cmbs problem, adaptive cruise control problem this so called safety features are being a safety problem.

When I make a turn left or right even the slightest turn on the road and no matter the speed the traction control lights up and immediately at the same time the breaks are applied automatically by the car itself, making my car slow down thus putting me in danger of being hit by the car(s) behind me. Then, all the warning lights start to appear on the dashboard. And they stay on for about 30 - 40 mins then they disappear but themselves. Stopping the car and turning it back on doesn't make them disappear. I've taken the car to the deanship and they said it was the alignment of the tires and that they fixed it but as soon as I drove off the dealership it happened again. I happens every single time I drive. I'm afraid to take the freeway because the self breaking system is so abrupt that it's a miracle that I've not been hit by another yet. I've had this issue since at least 25th of January of this year 2022. For a car to apply breaks by itself because I'm making a slight turn is dangerous and it's only a matter of time before someone gets seriously injured or worse. I was scared today because I was going 27miles an hour on a regular street when the car applied breaks by itself and the car behind me honked at me. But I never even touched the break paddle. Please take this issue seriously, it's very dangerous to drive like this.

When driving on the interstate highway with the adaptive cruise control, on rare and unpredictable time, the car will suddenly flash the brake warning and brake and/or rapidly slow down. Pressing the accelerator will override the issue. However, it is not reproducible. It can occur any time of day or night.

Collision mitigation braking system error reported on the car it says to take to the dealer for service also says that adaptive cruise could be affected also. I read that many other owners are reporting this issue.

I would like to add a comment on the "phantom braking" as I have experienced it with my car several times. I am glad to see a formal investigation has been launched. I think a way to try and replicate this issue is to attempt to pass another vehicle (that is in the adjacent lane) but ensuring you are doing this on a curved road way. . . . At some point the Accord gets "confused" when it looks liked it is "lined up" behind the other vehicle in the adjacent lane. It is real. . Please find a solution and bring this to a resolution. Feel free to contact me for further explanation. I cannot recall the exact date this incident has happened to me; hence I am putting in today's date.

The contact owns a 2019 Honda Accord. The contact stated that while driving at 45 mph with an activated cruise control, the vehicle independently came to a complete stop as a brake warning light flashed on the instrument panel. Due to the failure, the contact was hit from behind by another vehicle. The airbags did not deploy upon impact. The contact suffered whiplash as a result of the crash; however, no medical attention was given at the scene. The contact spoke with a doctor and received a prescription for her neck pain. A police report was filed at the scene. The contact was able to drive the vehicle home from the scene but later had the vehicle towed to an independent body shop. The contact notified the manufacturer about the failure; the manufacturer denied that the failure was caused by a mechanical failure and believed the failure was caused by a driver error. The vehicle had yet to be repaired. The failure mileage was approximately 25,000.