2018 Honda Civic Si engine problems

“1.Component or System Failure: •What component or system failed or malfunctioned, and is it available for inspection upon request? •The air conditioning (AC) system in my 2018 Honda Civic has malfunctioned. Initially, the AC compressor failed and was replaced under warranty in 2018. However, the AC never functioned properly afterward. Recently, the AC failed completely, and the dealership diagnosed a leaking evaporator. The vehicle is available for inspection upon request. 2.Safety Risk: •How was your safety or the safety of others put at risk? •The malfunctioning AC system poses a significant safety risk, especially considering the high temperatures in the Central Valley of California. Driving without a functional AC in extreme heat can lead to driver fatigue, reduced concentration, and potential heat-related illnesses, increasing the risk of accidents. 3.Problem Reproduction: •Has the problem been reproduced or confirmed by a dealer or independent service center? •Yes, the problem has been confirmed by an authorized Honda dealership. They diagnosed the issue as a leaking evaporator and provided a repair estimate of $2,520.16. 4.Inspection by Others: •Has the…”

“The contact owns a 2018 Honda Civic. The contact stated that the vehicle was difficult to start and was jump-started several times. Several unknown warning lights were illuminated. The vehicle was taken to be repaired and the motor mounts were replaced under a Lemon Law lawsuit settlement. However, the contact stated while driving and coming to a complete stop later, the vehicle made an abnormal rumbling sound. The vehicle was taken to Mavis Tires to be diagnosed. The mechanic informed the contact that the engine was moving back and forth due to missing motor mounts. The dealer was contacted and informed the contact that the vehicle was previously repaired. The vehicle was not repaired for the most recent failure. The manufacturer was notified of the failure and referred the contact to the dealer for a diagnostic test to be performed. The failure mileage was 1,585.”

“Engine failure while driving down the highway. Was able to safely get off the highway without being able to accelerate. Car was towed to the Honda dealership where all the maintenance has been done. They said the car had a cylinder misfire and would need the engine replaced. It would cost $13,000. This car had already had the A/C, fuel pump and transmission replaced in the five short years I owned it. It was garage stored and had under 50,000 miles. All the maintenance was done through a certified Honda dealership.”

“March 5th 2020 I finally recorded a message that had been appearing in my dash board during late night drives. Message read as "Adaptive Cruise Control Problem" "Collision Mitigation System Problem" I notified Honda of North Hollywood service department at the time, and they said they could not do anything to fix the problem unless the message was actively displayed on the dash board during the time of service. Unfortunate for me the message would come and go and would not remain on for the service advisor to see. Several times my vehicle would randomly brake abruptly (to a screeching halt) due to a malfunction in detecting cars/objects around me. Luckily I managed to not crash or have other vehicles crash into my car from behind, but it scared me. I've always wondered what the issue was, and was never able to get it resolved because I didn't have proof of the abrupt stops. Fast forward to May 2024 I received a letter in the mail for a recall on the fuel pump module. I think this might have something to also do with not being able to start my car three times within one year... I ended up replacing multiple batteries and cleansing the fuel tank thinking that was…”

“The contact owns a 2018 Honda Civic. The contact stated while driving on a decline of a public garage road and depressing the brake pedal, the vehicle stalled. The contact continuously depressed the brake pedal, but the vehicle failed to respond, and the power steering became inoperable. The vehicle rolled at approximately 20-30 MPH and crashed into the wall of the garage. The wall sustained minor damage. There was no warning light illuminated. The contact stated that messages advising of engine system failure, supplementary restraint system failure, and electric power steering failure were displayed on the vehicle mobile app. The front driver's side and passenger's side air bags deployed. The emergency units arrived and provided first aid to both the contact and his sister, who was occupying the front passenger's side seat during the incident. The contact's sister sustained chest pain and was in the process of receiving medical assistance. The contact sustained lower back pain and was in the process of receiving medical assistance. No police report was filed. The vehicle was towed to the dealer but was not diagnosed. The vehicle was not repaired. The contact…”

“The contact owns a 2018 Honda Civic. The contact stated while driving in a parking lot, the vehicle stalled while attempting to pull out of the parking lot. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline). The vehicle was taken to the local dealer for routine maintenance. The dealer was unable to duplicate the failure and informed the contact that the parts were not readily available. The dealer test-drove the vehicle but was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and they referred her to the local dealer. The failure mileage was approximately 7,860.”