general problems of the 2018 Honda Accord - part 1

While driving, my vehicle began shaking/rough running and the check-engine light came on. Multiple warning lights and system warnings appeared on the dashboard, including the brake system, steering, traction control, and tpms warnings. The vehicle experienced noticeable shaking and reduced/abnormal performance. I am concerned that this may be a safety-related defect because multiple vehicle systems are being affected.

In the duration of ownership with this vehicle, there is always lights lighting up on the dashboard which trigger my sensors and causes my dashboard to light up like a christmas tree. I do not feel safe when that happens randomly in the middle of driving on the highway.

I bought this car used and I've only had it two months and the head gasket has blown. I didn't know the 10th generation had bad gaskets and turbos I found that out after I purchased the car. Literally everyone I know now that had one the gasket or turbo went out. Not only that it was a recall on my fuel pump no one told me about until I added it to my insurance and they told me. Yes Honda dealership fixed it for free now it needs to be a recall on these turbos and head gaskets. It's not fair. I wouldn't recommend Honda to no one now and they say Honda last a lifetime. Thats not true quit making the 10th generation and take it off the market.

Vehicle brought to ocean Honda, weymouth MA with complaint that hvac system underperforming. Customer asked to replace condensor under warrany but Honda required full diagnostic ($135). Honda disclosed that 2/3 hvac system had leaks, and known issues. Honda has a known issue with faulty and leaking ac condensers, heat exchange pipes, and evaporators. They reported this vehicle had leaking condensor and heat exchange pipe. Honda stated they can replace the the condenser under warranty, but not the heat exchange pipe or evaporators - even though they admit both are faulty and often require repair, replacement, and costly ac system recharge. The costly repairs (upwards of $1,800-$2,000+) are passed onto the customer. These failures are confirmed by dealer (ocean Honda - weymouth) and considered hazardous, but refusal to fix unless cost is absorbed by customer.

At approximately 159,000 miles, my vehicle exhibited multiple dashboard warning lights simultaneously including abs, vsa, eps, tpms, brake, acc, cmbs, and rdm warnings along with engine misfire codes. Borescope inspection confirmed coolant intrusion into cylinder 1. Cylinders 2, 3, and 4 were dry. Diagnosis confirmed head gasket failure consistent with the known design defect in the 1. 5l turbocharged I-vtec engine related to inadequate head bolt clamping force versus boost pressure. This failure is the subject of active class action litigation (bissell v. American Honda motor CO. , case 3:24-cv-02286-ajb-mmp). Vehicle requires full head gasket replacement at my own expense estimated at $900+. No recall has been issued despite widespread reports of identical failures across 2018-2022 Honda Accord 1. 5t vehicles.

There are 13 alerts showing on the instrument panel for various systems not functioning, along with accompanying yellow dash lights such as tire pressure, abs, brake system, traction control, acc, and lkas. Systems not available include, abs system, adaptive cruise control, road departure mitigation, auto high-beam, tpms, electric power steering, plus several others. These alerts first started January 2026 and occasionally would disappear; however, over the past few months the warnings have become constant. The vehicle has approx. 120,000 miles. Due to tpms not functioning, I am not given a warning when a tire has gone flat/blown while driving as the tire pressure light is always on the dash. The only warning I am provided is the sound/smell of the rim dragging along the road to notify me the tire is flat. This poses a risk to myself and others by creating an emergent situation requiring me to pull over rapidly. Another incident occurred when acc was enabled (at a time when the alerts had been appearing on and off). Cruise control set at 70 mph when suddenly the above mentioned alerts reappeared and acc system became unavailable, leading to unexpected deceleration on the highway. This poses a risk to myself and others as it creates unpredictable driving patterns, unbeknownst to the driver. Initially I replaced the battery with no resolution of the issue. I later discovered maintenance code displayed by the vehicle was c003a-62 for right rear wheel speed sensor circuit failure (circuit short to ground or open). The mechanic recommended replacing the right wheel hub assembly as this was suspected to be the cause of failed circuit. When that repair lasted no more than 10 mins before the warnings reappeared, the right rear wheel speed sensor itself was then replaced. Similarly, this did not fix the issue. I have not sought additional service due to repair costs beginning to add up with no resolution. Based on the history of reports, this issue does not seem uncommon.

The contact owns a 2018 Honda Accord. The contact stated that while driving approximately 40 mph, the air bag warning light illuminated, and the message "srs fault - see dealer" was displayed. The vehicle was taken to a dealer where it was diagnosed and determined that rodent had eaten through the wiring and that the wiring insulation was soy-based, and the air bag cable and the harness cable needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 68,000.

Ac compressor problem.

Everytime upon start up I get a message saying supplement restraint system error see dealer, should not be having this issue.

While 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 multiple times and await a repair of this dangerous issue. Honda has opened a case on this but have had 18 months and no response has been issued.

The head gaskets and turbo supercharger goes out at a certain amount of miles.

The day I purchased the vehicle from the dealer, every warning light began cycling on including the automatic emergency braking failure, engine system failure and others. I immediately took the car back to the dealer and they supposedly repaired it. When the car was returned to me, I drove it for less than a week and the same thing happened again. When the light came on, the car’s auto braking and cruise control stopped working. I took it back to the dealer and they said it was the head gaskets, which they fixed. When I got the car back again, I drove it for 2 days and it did the same thing again, this time all of the warning codes came on. This time, I had a total engine failure because the timing chain broke. The dealer took almost two months to replace the engine and it cost us almost $6,000. I got the car back last Saturday. Today, driving home from work, the automatic brake system failure warning came on again and the car won’t automatically brake and cruise control wouldn’t work. This is exactly what happened last time. I am afraid to drive this car because I don’t know if the brakes will fail and the system currently isn’t working. We are taking it back to the dealer which will likely cost us more money. We are stuck with this car and cannot get rid of it because we owe more money on it then it is worth because of replacing the engine.

Car keeps throwing cylinder 2 misfire, replaced all spark plugs, fuel indicators and still having issues. Think it’s the ecm/pcm is bad or there’s a bad connection.

Infotainment center continually freezes. When it does, backup camera does not work. I have tried software updates but it has gotten worse. It is also very slow to reboot so again, no backup camera during that time.

The dashboard on the vehicle lights up with multiple error notifications. This puts the vehicle in limp mode. Indicates emissions errors, check engine, lane mitigation, brakes, control system. Per different customers this fault is being caused by either faulty fuel injector, miss fire, bad ignition coils, damage head gaskets, or turbo mechanism faulty. My vehicle has 70,000 miles and others in the chat have less miles that are having similar problems. Head gaskets should not fail so soon with proper maintenance. My obd2 scan code is miss fire which could indicate faulty spark plugs, coil, injector or headgasket. For a vehicle at 70,000 miles this shouldn't happen. Vehicle has been maintained as the manufacturer recommendations.

I have bought this car new in 2018, the issue that I’m having is that . . I’ll be driving on the highway or local my car will brake on its own without any hazards in front of it . It’s very dangerous it almost caused me an accident on the highway .

A supplemental restraint warning came on dashboard, I noticed other Accord owners are experiencing the same this light has to do with possibly airbags or seatbelts making it possibly unsafe to drive.

All warning lights are on the dash. Came on while driving.

Doors lock actuators problem the break so fast , fuel injector problem head gasket, break warning sistem problems.

A 2018 Honda Accord suddenly displayed multiple dashboard warning messages at the same time after previously operating normally. The warnings include: emission system problem (avoid heavy acceleration), tire pressure monitoring system (tpms) problem, brake system problem, brake hold system problem, electric power steering system problem, vehicle stability assist problem, hill start assist problem, adaptive cruise control system problem, collision mitigation braking system problem, and road departure mitigation system problem. These alerts appeared simultaneously when the vehicle was started, even though the car had been driven the night before without any issues. The vehicle still starts and runs, but the number of system warnings suggests a possible electrical, sensor, or control module issue affecting multiple vehicle systems.

Head gasket caused multiple issues with coolant burning quickly. Multiple ignition coils also got damaged and had to be replaced. Though the underlying issue with the gasket was not addressed by the dealership. The head gasket is currently broken and does not function at all and the car has only driven 84000 miles.

The high-pressure fuel pump on my 2018 Honda Accord failed even though the vehicle had previously been repaired under a recall for the same issue. While driving, multiple warning lights illuminated on the dashboard, including the check engine light and other system warnings. The vehicle began running rough and lost power, creating a dangerous driving condition, especially in traffic. This is the second occurrence of fuel system failure despite the recall repair being completed. The recurrence of this issue raises serious safety concerns, as sudden power loss or engine malfunction while driving increases the risk of an accident. The vehicle is currently not safe to drive due to the risk of stalling or loss of power. The problem appears to be related to the high-pressure fuel pump system that was previously addressed under recall.

What component or system failed or malfunctioned, and is it available for inspection upon request? I own a 2018 Honda Accord with approximately 132,000 miles. Shortly after my vehicle was serviced for the fuel pump recall, multiple warning lights and system failure messages appeared simultaneously. The affected systems include road departure mitigation, emission system, adaptive cruise control, auto high beam, collision mitigation braking system, electric power steering, vehicle stability assist, tire pressure monitoring system, hill start assist, and the air bag system. The vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? the failure of multiple safety and driver-assistance systems has created a significant safety risk. My vehicle is currently operating in limp mode, resulting in reduced performance and making it difficult to drive safely in traffic. The loss or malfunction of systems such as collision mitigation braking, power steering, vehicle stability assist, adaptive cruise control, and air bag monitoring increases the risk of an accident and could jeopardize the safety of both vehicle occupants and other motorists. Has the problem been reproduced or confirmed by a dealer or independent service center? yes. I took the vehicle to a Honda dealership for diagnostic testing after the warning lights appeared. The dealer confirmed that multiple systems were reporting faults. I was advised that numerous components would need to be replaced at a substantial cost. Prior to the fuel pump recall service, I had not experienced any of these issues and the vehicle operated normally. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? the vehicle has been inspected by a Honda dealership for diagnostic purposes. To my knowledge, it has not been inspected by Honda corporate, law enforcement, or insurance representatives. Were there any warning lamps, mes.

Everytime I try to turn my wheel it’ll get stiff and the notification will pop up saying “electric power steering system” but then it’ll go back to normal and when I start the car it sounds like it doesn’t want to start at all and like the cords are trying to connect because they start making a ticking sound. I’ve had issues with electrical before to where the airbags and lane assist had to be fixed but the issues seems to keep circling back around. Something going on with the electrical in the car and I have only had it for about a year and a half.

Experiencing an ongoing issue where multiple warning lights appear on the dashboard at the same time. The lights include several safety and system warnings, making it look like many different systems in the vehicle are malfunctioning simultaneously. Even after repairs were made, the dashboard warning lights continue to stay on or return shortly after. It has become frustrating because the vehicle continues to show problems even when something has already been fixed. This is a safety concern. How can we know if something is actually malfunctioning if codes are being thrown, constantly?? we also can’t use the safety features included with the vehicle when this is happening. Having so many warning lights on at once also creates concern about the reliability and safety of the vehicle, especially since several of the warnings relate to important systems such as braking, driver assistance features, and engine performance. Repairs aren’t helping and I’m seeing sooooo many other 2018 Accord owners with the same issue, as has been documented with this site, NHTSA.

Over the past several years, there have been multiple instances where I or my wife are driving on the highway and the engine light comes on or starts flashing, and I am unable to go faster than 50 miles an hour, and the engine itself feels to be underpowered. We have taken it to the dealership for repair at least five times over the past five years and in each case they have attempted to do a repair and said the issue has been resolved, but the issue continue. At at least one of those visits, they have diagnosed the issue as an engine misfire issue. The issue has intensified from the initial symptoms, (which were as I described, but resolved by turning the car off, waiting 30 seconds to a minute and then turning the car on again) to how it is now: in addition to the check engine light, every other light and warning system has gone off when driving on the highway and the engine was unable to go faster than 40 miles an hour, and it does not resolve by restarting the car. The dealership and Honda America’s main phone line have as of yet been unable to give me a clear answer as to why this is happening or whether it can be fixed. A sudden drop in speed and power on the highway as we have experienced many times over the last five years is inherently extremely dangerous.

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The failure was intermittent. The failure had occurred while attempting to start the vehicle, while the vehicle was idling, and while the vehicle was being driven. The contact stated that the vehicle was taken to several independent mechanics, however the failure was not duplicated. The vehicle was taken to an alternate independent mechanic; however, the failure was not duplicated. The contact was informed that the failure might be a communication issue with the software. The dealer was made aware of the failure. The contact referenced an unknown recall; however, the VIN was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 135,000.

The body control module of my 2018 Accord has failed. At 70,000 miles on my vehicle the door locks began to be unresponsive. At 100,000 miles all door locks were unresponsive to the door control and fob control. The only way to secure my vehicle is to manually lock all doors and use the key within my fob to unlock the drivers door and then manually unlock all other doors. Ed martin Honda in indianapolis inspected the vehicle and determined the the body control module would need to be replaced to make the door locks work. There were known issues with the body control module as there was an active recall for the software of the system. I completed the recalls software update at the time it was issued but this seems to be a continued problem.

The Honda Accord infotainment system is constantly “ghost touching”. It will select buttons on the screen that I never touched. It is incredibly distracting as it happens while I’m driving and the screen changes rapidly. It also will turn off my gps while I’m driving so I suddenly no longer no where I’m going. This problem began occurring when the screen was replaced by the dealership and I made them aware promptly but they said if I can’t reproduce it there’s nothing they can do, and this happens randomly. It happens without warning. It happens daily now at all times the car is on.

I purchased the car in November 2025 from carvana. By December, all the dashboard lights came on and no one can locate the problem. The car still runs but not to its optimum performance.

I am submitting this as a formal and urgent complaint regarding serious safety issues with a vehicle I recently purchased. The trunk opens on its own while I am driving, which creates an immediate safety hazard. In addition, the backup camera is malfunctioning, further increasing the risk when reversing or parking. Shortly after reporting the trunk issue, the radio also stopped working. I have contacted the dealership regarding these concerns, but no corrective action has been taken. Given that this vehicle was recently purchased and involves active safety risks, this lack of response is unacceptable. I am requesting immediate inspection and repair of these issues, as well as written confirmation of how the dealership plans to resolve this matter promptly. Please consider this issue urgent due to the safety risks involved. I look forward to your immediate response.

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 car will have all lights on dashboard showing, car has been taken multiple times to dealership and nothing seems to be wrong but this cause all safety features to malfunction. I have talked with other Honda owners, on forums and acquaintances and they have similar issues.

All alarms are on. Breaks adaptive cruise control hill assist and all other alarms. Taken in to 2 Honda deals and serval mechanics they cannot figure out what’s wrong with it. About once a month all the alarms will clear while driving and the car sensors will start making the car drive odd. Have to fight the steering wheel to keep it straight and wheels will independently break, thinking it’s sliding but it’s not. Extremely dangerous on snowy road or wet roads.

Car has lost power or gone into "limp mode" while driving on multiple occasions. Car was never listed under the fuel pump recall but had all associated symptoms & problems. Had to have fuel pumps replaced in December 2023 due to car not starting because of faulty fuel pumps. Car has been properly maintenced since purchased brand new in February 2018. Currently around 121,000 miles. Car overheated this past summer, coolant seems to be leaking somewhere as just filled with coolant month ago and needed to refill with about quarter to refill to correct amount. Oil also seems to be having slow leakage problem somewhere within the engine as there is excessive oil on drip pan. Had all 4 spark plugs changed in March of 2025. Car has been going into limp mode and looses power for few seconds to minutes sometimes, almost causing multiple accidents while driving on highways. Pull over to shut off and give few minutes to restart and able to resume driving no warnings before this occurs. Randomly all dashboard lights light up 2 weeks ago and put car into limp mode, was driving on highway at high rate of speed (65mph) safety was compromised several times while this occurs. Engine seems create knocking sounds to known due to oil dilution problem. Cold weather seems to affect issues to onset more often. Also been having stalled or rough start ups in colder weather or when engine is not warmed up. Researching these issues seems to be that 2018 Honda Accords had known head gasket failure. This should become a class action lawsuit and also a recall.