2020 Honda Civic

on 7-28-26 After filling my vehicle with gas at the next red light, all lights on dashboard went on flickering warning (Christmas tree effect). on 7-29-26 After researching online Roadside came out and did Battery and alternator test that passed. I did hard reboot from instructions I found online and after several attempts the lights cleared twice, the morning of 7-30-26 when leaving for work the flickering lights came back on. Vehicle had a slight tremble but cleared after a few seconds while vehicle warmed up. I went to get the battery checked at the shop and it passed also had air filter changed. Lights still on, car is running fine, but I feel unsafe to drive and have an appt at the dealer for a diagnosis check on 7-31-26.

The A/C went out on this vehicle. The A/C only worked half way in the car. It would only cool the passenger side and not drivers side. When I took it in to get it fixed, they said it was the condenser. There was a recall for the compressor shaft seal but not the condenser. They replaced the condenser and compressor shaft seal. As I checked the Internet I found a recall for this problem in Canada but not in the U.S. I asked Honda about it. They said it was VIN specific right now unless enough people complain about this problem. If it happened in Canada it should be dealt with here. According to my search there are others in the U. S.that have had this problem. How many complaints does it take before this is dealt with?

I am writing to file a complaint regarding the air conditioning system failure in my 2020 Honda Civic Sport. The air conditioner in my vehicle began blowing hot air instead of cold air. I took the vehicle to Honda for inspection and paid $545.15 to have the system recharged and dye inserted in order to diagnose the issue. After this service was completed, I was informed that the evaporator has failed and needs to be replaced. I was then quoted $2,475.13 for the repair. While researching this issue, I discovered that many other Honda Civic owners have reported similar air conditioning problems involving the evaporator and AC system. I also became aware of a 2021 letter involving American Honda Motor Co. and Honda dealership personnel regarding evaporator leaks in vehicles with VIN numbers beginning with 2HG or 19X. The letter stated that Honda was researching these vehicles in an effort to better understand the issue. Given the number of similar complaints and Honda’s apparent awareness and investigation into evaporator leaks, this appears to be a potentially widespread defect affecting these vehicles, even when properly maintained. The failure of the air conditioning system has caused significant inconvenience and financial burden. I believe this issue should be investigated further, as it may indicate a defect in the vehicle’s air conditioning system. I respectfully request that the NHTSA review this matter and investigate whether the evaporator failure in the 2020 Honda Civic Sport is a recurring manufacturing defect that may warrant further action or assistance for affected vehicle owners. Thank you for your time and attention to this matter.

To Whom It May Concern, I am writing to formally address a serious issue regarding my recent service experience at Freeway Honda and the unfair handling of my case by American Honda concerning my Honda Civic (VIN: [XXX] ). On January 2, 2024, I brought my vehicle to Freeway Honda due to recurring air conditioning issues. My service advisor, Erick Zermeno, informed me that the system had three leaks: the condenser, the compressor, and the evaporator. While he acknowledged that the condenser and compressor were covered under warranty, he stated that the evaporator was not and quoted approximately $1,900.00 for the repair. Furthermore, he refused to repair the warranty-covered parts unless I agreed to pay out-of-pocket for the evaporator repair at the same time. When I declined, the manager, Jamie, required me to pay a $175.00 diagnostic fee to have my vehicle released, despite the fact that the inspection identified defects covered by the extended warranty. Seeking a second opinion, I visited Norm Reeves Honda in Irvine on January 31, 2024. Their technicians determined that only the A/C condenser and compressor were leaking. They repaired both parts at no charge under the warranty and found no issues with the evaporator at that time. It appears Freeway Honda attempted to charge me for an unnecessary repair and wrongfully collected a diagnostic fee for a warranty-related inspection. This matter has been reported to the Bureau of Automotive Repair. I previously filed a complaint with American Honda (Case #XXX) and requested a full refund of the $175.00 fee. Later on, the defroster and the A/C started to cause problems. On October 8, 2024, the A/C failed again, and Norm Reeves Honda confirmed the evaporator was leaking, resulting in a repair cost of $1,797.79. Although American Honda initially offered a partial reimbursement of approximately $960.00, which I declined due to the ongoing nature of these failures. Now, they rescinded the offer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

The air conditioning system in my 2020 Honda Civic EX has a refrigerant leak at the evaporator assembly, causing very weak or almost no cooling even when set to the lowest temperature settings. This happens consistently, including in moderate to hot outside temperatures, making the cabin uncomfortably warm during drives as it could get pretty hot in inland southern California. The A/C evaporator assembly is the failed component, and the part remains in the vehicle available for inspection if requested. This issue creates a safety risk because reduced visibility from window fogging in humid or rainy conditions (due to lack of proper dehumidification and cooling) can impair safe driving. In extreme heat, it also increases driver fatigue and distraction from discomfort. The problem was confirmed by a Honda dealership through diagnostic testing, which identified the evaporator leaking refrigerant. They previously repaired a related condenser leak under warranty, but the cooling issue persisted and was later traced to the evaporator. The vehicle has been inspected by the dealership (manufacturer-authorized) on multiple occasions for this A/C concern. No specific warning lamps or messages appeared on the dashboard related to the A/C system. This appears to be part of a broader pattern reported by owners of similar 2016-2021 Honda Civics, where condenser failures (sometimes covered by extended warranty) are followed by evaporator leaks, possibly related to the vehicle's use of R-1234yf refrigerant and system pressures. I recently received partial goodwill assistance from the manufacturer toward repair costs, but the issue highlights a recurring defect in the A/C system that affects cooling reliability. This car is driven by my 20 years old daughter as a commuter car to college and she is really suffering. I feel I am putting her at risk and need to get it fixed ASAP at whatever cost.

While driving down the road my steering wheel locks or sticks then quickly releases causing me to overcorrect the steering wheel. This happens on a continuous basis while driving. There are no warning lights or messages that come on. I took it to dealership for a diagnostics and they determined it to be the steering gear box but not considered a a recalled item.

I am writing to formally report a persistent and widely experienced issue with the air conditioning system on Honda Civic models from 2017 through 2025 (10th generation). Many owners, including myself, have encountered repeated failures where the A/C system either stops working entirely or begins to blow hot air. These issues appear to be linked to faulty components such as the condenser and evaporator, which have become known problems within the Civic community. I've also noticed that people will fix this issue, only to have it return a few years later. I got lucky when we purchased my car in 2020. We added a Honda Care package, which is still under warranty. They will replace everything without additional payment. What’s concerning is that once the vehicle is out of warranty, owners are being quoted anywhere from $1,300 to $3,000 for repairs, costs that seem excessive for a known defect affecting a major comfort and safety feature. I respectfully ask that Honda recognize this issue and provide appropriate support or reimbursement options for affected customers, especially considering the pattern and volume of complaints. Please let me know how Honda intends to address this concern and if there are any extended warranties or recall programs currently in place for the affected A/C components. Sincerely, [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The A/C system failed due to contamination from the ac condenser and compressor shaft seal leaking. It was inspected at Hardin Honda dealership and confirmed these systems were leaking and the entire system was contaminated. My vehicle is available for inspection upon request. My safety is put at risk because the contamination can cause the engine to fail. The problem has been confirmed by Hardin Honda dealer and Honda issued two warranty extensions to fix these issues. Hardin Honda put in writing that the defect code is 6C300 and one of the two warranty extensions is under this code. Honda issued Service Bulletin 19-091 for my issue, but they are now refusing to stand behind their warranty extension. When we took it to the dealership they said our issue was not the same and that we had to pay thousands of dollars to fix the entire a/c system. The dealer said they cannot fix the two parts under warranty because the whole system is contaminated but the whole system is contaminated because of those two parts leaking. We reached out to Honda Corporation and they refuse to correlate our issue with the warranty extensions even though we have in writing from Hardin Honda that our A/C issues are the ones under the warranty. Honda issued these warranty extensions and are refusing to pay for the damages that my car is experiencing. The A/C system stopped working on 7/14/2025 and I took the car to the dealership on 7/17/2025 to get it checked out. Honda issued these warranties because of a manufacturing fail on their part and now they are refusing to fix their own issue and making us pay for damages that we had no idea were happening until our A/C system went out. If Honda had issued a recall for these faulty parts, then I would have taken my car in to be fixed right away and my whole a/c system would not be contaminated. We have been in communication with Honda Corp but they will not assist us and will not stand behind their warranty extensions.

The evaporator in my 2020 Honda Civic failed without warning, causing the air conditioning system to stop blowing cold air. This posed a safety risk, especially in hot weather, as it affected driver comfort and increased the chance of fatigue or distraction. The issue was diagnosed and confirmed by a certified Honda dealership, whose staff acknowledged that evaporator failure is a common problem in 10th generation Civics and that Honda corporate is aware of multiple similar cases. While Honda has extended warranty coverage for other A/C components, the evaporator—despite its high failure rate—remains excluded. The repair is extremely labor-intensive and costly, often exceeding what many owners can reasonably afford, which discourages timely repairs. In many cases, the failure is due to leaking refrigerant, which not only compromises system performance but also poses an environmental hazard. There were no warning lights or messages before the failure, and the component is available for inspection upon request. I am requesting that Honda extend warranty coverage to include the evaporator and provide reimbursement for repairs due to the widespread nature, safety concerns, and environmental impact of this issue.