general problems of the 2018 Honda Accord - part 1

While driving in a busy area with pedestrians and other vehicles, my car hard braked out of nowhere to a complete stop for no reason. I was nearly rear ended. The adaptive cruise control shuts off completely after 15 minutes in use. Says to take it to the nearest dealership. Turning off and restarting the car gets rid of the notification.

The rear brakes on my 2018 Honda Accord sport 1. 5t (six speed manual transmission) have failed prematurely. This failure of the pads and rotors was confirmed, at the request of american Honda, by me at my local Honda dealer, and was documented in a response to american Honda. This occurred at 46,150 miles which I believe indicates a defective design in that the brake calipers, pads and rotors as a system were not built to the capacity needed to support Honda's design of this car that greatly increases the workload on the rear brakes. I am a very careful driver and minimize the use of brakes as a result. My calculation is that these brakes have failed at 1/4th the life that it would be reasonable to expect. The result is increased safety risk to car owners and drivers who do not act on this premature failure due to it not being normal or expected or affordable. Honda has effectively, through this brake design, implemented a need for car owners to enact a $750 repair on a frequency close to routine maintenance such as oil changes.

Car initiated emergency auto break while traveling on the freeway at high speed (70 plus mph) in phoenix, az for no reasons. There were no objects or cars within 500 feet, however I was approaching an overpass. This occurred multiple times on the freeway and on local roads. Reported to Honda, no fix.

While driving, the power steering warning came on and the steering wheel became extremely tight, making it very difficult to turn. This has happened more than once, most recently on December 8, 2025. The loss of steering assist occurred while the vehicle was in motion and created a serious safety concern. The dealership retrieved diagnostic code c1250-52, which indicates an internal malfunction of the electric brake booster ecu. The steering issue and warning occurred again after the initial diagnosis. The system appears to fail intermittently and without warning. I have owned multiple Honda Accord vehicles over the years and have never experienced anything like this. Sudden loss of steering assist while driving is a safety defect, and similar issues have been reported by other owners of 2018–2022 Honda Accord models.

The contact owns a 2018 Honda Accord. The contact stated that when the vehicle was started and shifted to drive(d), the traction control and an unknown warning light were illuminated. The contact stated that the "hill start assist failure – vehicle might roll upon brake release” and “see dealer immediately” messages were displayed. The contact turned off and restarted the vehicle, but the warning lights remained illuminated. The vehicle was towed to a dealer, where it was diagnosed and determined that the head gasket was blown and needed to be replaced, and the fuel pump that was previously replaced was faulty and needed to be replaced. The fuel pump was repaired, but the head gasket was not replaced. The manufacturer was notified of the failure. The failure mileage was approximately 150,000.

The contact owns a 2018 Honda Accord. The contact stated that while driving at various speeds and depressing the accelerator pedal, the vehicle failed to respond as intended. The contact stated that the engine was revving, and the tachometer was showing an elevated rpm level before the vehicle slowly responded. The contact stated that there were several unknown warning lights illuminated on the instrument panel. Additionally, the check engine, traction control, and brake warning lights illuminated and remained illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 143,000.

All my warning lights keep coming on in dashboard and my car isn’t accelerating in cold weather after sitting overnight.

While trying to accelerate the car loses power. This has happened many times. The Honda dealership has said the system is on back order and they will call me when it’s available. It’s been months. The “jerks”a few times then the check engine light comes on then the car loses power. The dashboard lights are brake system, emission system, electric power steering, hill assist and acc system problem.

My car be braking and nothing be in front of me. It detects something in front of me when nothing be there.

I had been driving down highway and all of a sudden my car put on brakes hard. Thank goodness no one was behind me. I had dealer turn off that feature so it wouldn't happen again. I still experience my brake light flashing when nothing in road to brake for but doesn't brake on its own. Issue having now is issues starting car and once it starts I recieved a collision mediations issue pop-up on display saying see dealer now. Cruise control issue, and on dash has traction control saying ignitionating continue driving. The braking issue started right after purchase in 2018. The starting issue started yesterday 7/25/2025.

Parking brake suddenly engaged while in traffic car would not move. Car had to be towed brake pads were replaced but mechanic stated parking brake had defect that only the dealer can repair.

Driving down the road, no cars or obstacles in front of me. Out of nowhere the automatic emergency breaking came on. The car slammed on the breaks and very quickly came to a complete stop in the middle of the road. If there happened to be another car behind me they would have rear-ended me. There were no warnings prior to this happening.

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The vehicle was taken to a local dealer, where it was diagnosed; however, no cause for the failure was identified. The contact stated that while driving at various speeds, the vehicle jerked abnormally. The vehicle was taken to a local independent mechanic, and it was diagnosed and determined that the core pad needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was made aware of the failure. The failure mileage was approximately 111,000. The VIN was not available.

When I am driving in an area near my home with road construction- there is a certain area that has a metal plate in the road and when I approach in from the east my car will automatically brake hard. Luckily this has not caused an accident but I suspect that it may because it is a busy road.

During interstate driving vehicle detected both road departure and engaged the emergency automated braking. The vehicle attempted to correct the "road departure" by steering the vehicle away from the perceived problem and engaged the brakes nearly causing a collision as it has done numerous times before. I have reported this to NHTSA and american Honda and await a repair of this dangerous issue. Honda has opened a case on this but have had 6 months and no response has been issued.

Honda needs to recall all the newer vehicles starting with 2018 to 2024. All lights on the dashboard is on and while I’m on highway, the car would apply the brake itself and when I released my foot from the pedal, the car run smoothly again. I took the car to Honda dealership last year and I was charged over 1500 dollars, still the car is having the same issue. This is frustrating. Today, the car is showing the camera like I was trying to back up, even though the car was on drive mode. Unbelievable.

My 2018 Honda Accord sport has been experiencing issues with its automatic emergency braking system, specifically the collision mitigation braking system (cmbs). The system has been activaing unexpectedly, causing the car to brake without an apparent reason. I’ve been trying to keep a list of locations that it has happened and it usually occurs under overpasses when the light changes from light to dark. I’ve reached out directly to Honda and the dealership and neither took my inquiry seriously.

The collision mitigation braking system is engaging while I’m driving with no obstructions in front of me. The car slows down completely while I’m on the highway almost coming to a complete stop. This has happened numerous times since Dec 2024. I took it into Honda and they did absolutely nothing besides charge me over $500 for diagnostic fees and told me to get an oem battery and bring it back to be inspected again.

While driving on the interstate, suddenly got 6 different ‘warning’ messages on the dashboard. Most of them involved the brakes. Emergency brake malfunction, brake hold malfunction, forward collision malfunction, adaptive cruise control malfunction, brake system malfunction (use of brakes may be reduced), and road departure mitigation malfunction.

Doesn’t run as it should,all lights and warnings show on the dash.

The car is braking even when there is no obstacle or vehicle ahead. I have not driven at higher speed but I fear that if that happens, it can cause incident and injury.

Randomly, my car will start throwing many warning signs when I crank my car. Then it magically disappears after 2 days. Also I drive my car past 40mph and the engine light came on and then I could no longer accelerate. My car was slowing down while I was on the freeway. I pulled over, turned my car off then back on. Everything is back to normal. Next day, I crank my car, warning signs again and then disappears. I took my car to the auto shop and they could not find any codes. I have videos and pictures. There’s also a Honda facebook group with my same model car reporting the same behavior.

Dashboard lit up with a lot of lights and stuff.

While driving on highways, with no one in front of me, vehicle will brake while I have my foot on the gas. Vehicle says brake system malfunction. When I let off the gas and push again, it'll accelerate for a second, then brake again even though my foot is on the accelerator.

The rear brakes are horrible. They wear so quick. This is my 3rd Honda Accord and I’ve never replaced brakes this much on any Accord I’ve ever owned. Back tires also wear really fast. The rear brakes squeal really bad and makes squealing noises when I’m driving. No brakes are being applied but the noise continues. I’ve had this car for 3 years and I’ve changed brakes 3 times which is ridiculous.

Adaptive cruise control - collision mitigation - road departure mitigation - vehicle stability assist - hill start assist - electric parking brake - tire pressure monitoring.

Serval warning lights come on in my vehicle I’ve have seen this happen in other models of this car and nothing has fixed it. Car drives fine.

While traveling at approximately 30-35 mph, my vehicle suddenly and abruptly stopped, flashing the word "brake" on my dashboard. I was traveling in the right lane on a four lane road, with no vehicles in front of me or to the left of me. There were no pedestrians near, the road was free from any hazards and the road ahead was clear of any potential hazards that may require an abrupt halt. I was properly restrained, but my safety and the children I travel with could have quickly become compromised if hit from behind. Additionally, everyday items such as my school bag, water bottle and my children's books that I keep in my vehicle came flying forward, obstructing my ability to properly operate my vehicle. Additionally, being that this was unexpected, I was pretty shaken up which compromised my ability to safely operate my vehicle while attempting to find a place to park my car. My vehicle was not inspected and I used my owners manual to turn my collision mitigation braking system off in order to safely arrive at my destination. Additionally, there were no warning signals or messages that indicated this issue before it happened.

Multiple times in the state of oklahoma, driving from oklahoma to maryland, and in maryland washington DC area, the automatic brakes apply at highway speeds on the interstate whenever there is a shadow in the road. It is extremely frightening. I am having the fuel pump recall repaired at the Honda dealership today. I told the Honda dealership about this problem and they said they were unaware of it. They said they would reset the calibration on the anti-breaking system. However, upon research, it looks like you are investigating this problem. Please add my car to the list of cars affected. I do not know the exact dates that this happened but it has been. I would say at least 20 to 30 times since 2020 when I bought the vehicle.

Collision mitigation automatically engaged causing vehicle to brake when unnecessary. Once after excelling from a redlight and again when entering a highway on ramp. After occurring twice in a 6 month period it's now become permanently disabled with dash warnings. Braking system error. Collision mitigation breaking system error. Tpms error.

All warning lights came on (check engine, emissions problem, brake problem, tire pressure monitoring system problem, cruise control problem, brake problem, steering wheel problem, and lane keeping assist problem). In addition, sometimes the vehicle will vibrate or shake when first turned on and at times, when braking, the car will shake or vibrate.

2018 Honda Accord twice last week my car suddenly braked with no obstruction in front of the vehicle. I was on a straight section of the roadway. Thankfully no one was directly behiind me. It appears there have been other incidences reported.

Every light on my dashboard is on I done took it to Honda an had the lights turned off server times still on.

During regular driving, the vehicle engine will stall and lose power, with 9 different warning lights coming on and all advanced driver assistance systems becoming disabled, and I believe abs brakes being disabled as well. This is due to cylinder 3 misfires and the problem is intermittent, but the loss of power can come on randomly and is dangerous on highways as you have to pull over due to the sudden loss of engine power, restart the car, and hope the problem temporarily goes away. The l15be engine used in 10th gen Accord engines is widely known to have a faulty engine block design leading to early head gasket leaks (see links) which results in misfires and I think it is imperative that Honda issue a recall as thus far, they have been ignoring the pleas of the owners. I am planning on replacing the gasket ($4000 personal mechanic. Honda charges closer to $6000) with aftermarket parts ($400 additional) as replacing them with oem parts would just allow this to occur again. Please contact me for more details. . Read more...

When the vehicle in front of me slows down significantly, my Accord will flash the automatic brake warning and come to a complete stop. Once stopped the vehicle does not accelerate for a few moments. Several times I’ve pressed the acceleration pedal to the floor with no acceleration, the vehicle in front of me long all while watching cars swerve behind me to not rear end me. The several times this has happened the vehicle has left me completely stopped in heavy traffic, the middle of an intersection, or lastly an empty road as the vehicle stopped for a median….