2018 Honda Civic Electrical System Problems

Both door handles need to be replaced at 800.00 a piece. Key fob to door handles causing parasitic draw to the battery and car goes dead. Risk - have to lift that 47 lb hood to jumpstart while putting my back out. Steroid injects on 12/2/2025. My Honda advisor and pain doctor are aware. Problem has been reproduced by my Honda advisor and mechanic at Crown Honda Florida. No warning lamps in this Honda Civic 2018 shows no low battery capability. Google search door handles causing parasitic draw. 1600.00 is a lot of money to pay so I hope there will be a recall.

I have replaced my battery twice. I have purchased a new door handle so it wouldn’t drain the electric in my vehicle. I was told to drive my car every day to keep my battery charged. I just walked out the door and my battery is dead. This has happened approximately 12 times since I have owned this vehicle and I believe there should be a recall because you cannot find the parasitic draw. Please help me. I cannot afford all these repairs and this should be a recall. I have seen lots of articles about the 2018 Honda Civic sedan please file this under a recall.

Honda Civic 2018 EX keyless with BCM failure. Alarm won’t deactivate, engine won’t shut off. Only solution is battery disconnection. Issue reported in 2016+ models, Honda charges $1,000+. Full Complaint: My 2018 Honda Civic EX keyless has a serious electrical problem. The alarm activates and cannot be turned off with the key fob. I have to use the physical key to silence the horn, but the vehicle stays in accessory mode. If I start the car, I cannot turn off the engine. The only way is by disconnecting the battery cables, which is very dangerous since the ignition stays hot and could cause an electrical short. Honda knows about this defect but has not issued a recall. They are charging customers $1,000+ to replace the BCM. This problem has been reported in multiple Honda models from 2016 and newer, including the Honda Civic. In my opinion, this is a clear safety issue because if the vehicle cannot be turned off in an emergency, it could cause a serious accident or tragedy. I ask NHTSA to investigate and hold Honda accountable.

HONDA RECALL THE 2018 CIVIC FOR AC COMPRESSOR SHAFT SEAL AND THE DEALER REPAIR THE AC SYSTEM 3 TIMES AND THE PROBLEM WAS NOT FIX. ALSO HAS A RECALL FOR A FUEL PUMP MOTOR BUT IM NOT SURE IS WAS CORRECT IT FOR THE OLD OWNER.

Car battery died 3 times. Bought new battery after it being towed 2 times. 500. Door handle had to be replaced labor and costs over one thousand dollars. September 2024 bought used. This should be a recall.

The standard OEM key fobs for Honda Civics, for several model years, and possibly for other Honda models, have a "feature" that seriously affects driver and passenger safety, and that cannot be disabled. If two buttons are depressed simultaneously on the key fob for a period of time, all of the windows go down and the doors unlock. I have encountered dozens and dozens, perhaps hundreds, of owner complaints about this "feature" on various Internet bulletin boards. Typically, the stories go, "I parked downtown in an unsafe area and I came back to my car and found that it was unlocked with all of the windows open and someone stole everything from my car," or "I parked outside just before a rain storm and I returned to my car to find all of the windows open without my knowledge and the interior of my car was soaked." Single women could encounter this problem and be attacked by people hiding in the back seat. Apparently, if anything in one's pocket depresses the keys on the fob, without one's knowledge, this occurs. It has happened to me, where I'll bend down to tie my shoe and walk away and I'll return hours later to find all the windows open during a rain storm or in a bad part of town. I've asked American Honda numerous times for a way to disable this unwanted "feature" and they've said that they've not interested in addressing it unless they're forced to do so by the government. This is a serious safety issue, not only implicating potential crime, but a wet soaked car interior could affect electrical and navigation systems in a life-threatening way. If you respond, I can upload several Internet pages with owner comments and complaints about this problem.

1) Caused by faulty Body Control Module (BCM). 2) Can't enter car, key fob won't unlock car. Dashboard is illuminated when car is off, I can see it through my window. 3) Alarm horn went on when car is off. 4) Turn on my car, multiple errors, go to drive the car thinking I need to reset it from battery change. Shut off my car, but go to turn it back on. Car cranks but won't turn on, shows multiple errors on dash. 5) Dash shows "keyless start system problem" and car won't turn off. When pushing button to turn off car, head lights and a/c turn off but the engine still runs, push/start button flashes. Disconnected battery, still runs. Had to pull fuel or ECU fuse to stop the car running. 6) Can't reliably get my car to start. Issue is intermittent.

My AC system in my 2018 Honda has now failed twice under 80000 miles. The first time the compressor and condenser were leaking and failed around 50000 miles which the dealership said was due to a new refrigerant that Honda had started using for this generation of civics. Following this repair, Honda extended the warranty for these components of the AC system. Early in July 2024, I had the same issues with my AC blowing hot air only and making hissing and banging noises on the passenger side at around 75000 miles. Took this to the dealership and they again said that the compressor and condenser were leaking and had failed but also that the evaporator valve was leaking and failed due to the compressor and condenser issues. However, Honda has not extended their warranty for these parts and this would be an out of pocket cost. Honda needs to own up to their faulty AC system used in this generation of Honda civics and extend the warranty to all involved parts or issue a recall and properly fix the system so it isn’t failing every 18 months.

Body control module constantly fails and begins to parasitically drain the battery of the vehicle. I've had to swap the body control module twice now after it has failed shortly after the warranty period. This is not as serious as other issue but having the battery drained at unexpected times can cause safety issues.

All dashboard warning light turn on flashing at the same time causing confusing and unsecured driving

Water leaks in trunk every time it rains and stays in spare tire wheel well causing rust on spare tire, tools, etc. Also mold has presented in trunk which is another problematic issue. Honda Service Technician found wire/cable on wire harness that is not routed properly, damage to trunk seal is present from rubbing, recommended replace trunk seal and reroute cable. After checking online there are several complaints with the same issue. Honda is placing the responsibility of repair on the customer even though the customer did not perform the wiring. The water leak and the mold it causes needs to be addressed and recalled for repair ASAP. THANK YOU

The contact is an attorney who represented the owner of a 2018 Honda Civic. The contact stated that the client had taken pain medication and fell asleep in the driver's seat with the seat heater activated. The client slept for approximately seven hours and sustained severe burns the his lumbar region. The client was later admitted to the local hospital and treated for third-degree burns. The contact was concerned that the seat heater may have failed and became too hot causing injuries to the client. The vehicle was not yet examined. The manufacturer and local dealer were not contacted. The failure mileage was unknown.

Last week my body control module (bcm) malfunctioned in my car. I was first alerted to this from a car alarm going off. I tried my key fob and nothing happened. Despite nothing happening I walk outside to find it is actually coming from my car and none of the key fob buttons are working.(I have 2 I tried) I was completely locked out of my car and even the physical key was not opening the door. Yet for some reason the trunk was unlocked.(not able to enter car through here.) Looking inside the care to my amazement it was turned on in accessory mode despite me having absolutely no contact with the key except hours prior but the vehicle was properly shut off at that time. The safety concerns posed by this is that this could happen at any point potentially locking a pet, a child, or myself into my car with no means of escape. The car was only in accessory mode, but that means it’s fully capable of turning itself on by itself. Had I parked my car in the garage and it turned over, I’d probably be laying in my house dead from carbon monoxide poisoning. Upon looking online, there were countless occurrences of this happening in Honda’s newer vehicles 2016+. Even to the point where Honda recalled the same body control module issue in their accord and insight models. But why not the civic in their line which suffers from the same issue as their flagship vehicles? I am still unable to get into my car at the moment so I have the part but I’m looking to get it fixed asap as it’s my only vehicle.

The car makes loud noise in back near gas cap. The Honda dealer states there's a electrical gas locking mechanism gone bad and needs to be replaced. They were out of part for the fuel door latch actuator. Seems like lots of people having this problem.

I am the original owner of the above listed vehicle. The AC is not circulating cold air. I brought it in to get inspected and was told that the AC went out and has to be replaced. It is retaining freon, but it’s not circulating.

The computer board is out and on back order. I have to boost my care EVERYTIME I attempt to drive it. It has been out since January and won't be in until March 8th. They won't give me a loaner car at all. Nothing showed on the dash. The car automatically stays on but won't crank up but that is why the battery is being ran down.

Every so often, quite a few lights will come on my dash. These lights include and relate to problems with power steering, hill start assist, emissions system, traction control tire pressure, and brake system. It does not allow me to use my brake hold when this happens. Also, unsure if it has anything to do with it, it has caused a problem with my first cylinder and is reading that the fuel system is too rich. But the original few lights that come on, will come and go randomly when the car is shut off overnight and will typically stay gone until the car sits with the parking break on for a few minutes.

First it was two hoses that had issues with the AC then the condensor wasnt holding anything in so it kept leaking out and my AC still wasnt working so Honda said the Evaporator went out and said this is what Honda is known for and happens a lot. So my whole AC all these little parts kept going out and it cost me $4000 to replace all of them and to get it fixed. The evaporator is what cost $3000 to replace

There crappy electrical Systems and cause a fire! It’s breaks the Ac system. Someone could die of heat related reason from driving in 95 degree weather. DAMN YOU HONDA!!!

Actuator Assy., Fuel Lid (FUEL FILL DOOR LOCK ACTUATOR). Repeatedly locks and unlocks (making a gun shot noise loudly) every time I get in and out of the vehicle. Yes, it is available for inspection at any time. My safety or the safety of others could be at risk with the open gas cap, constant moving electrical components, and to be left stranded unable to open the gas door. The Problem was talked about with the Honda dealership. They said it was a common problem. That Honda knows about. No warning lamps or any notification.