2020 HONDA CIVIC reports

ELECTRICAL SYSTEM · EXTERIOR LIGHTING · VEHICLE SPEED CONTROL

While I was crossing the street on [XXX] coming down from [XXX] there was a white Honda with the license plate number [XXX] with a male driver by the name of [XXX] and a Mexican light skinned female passenger driving making an illegal left turn without a blinker and hit me with their car and I fell down on my right knee dropping all of my belongings and they drove away and returned a couple minutes later and left then returned again but stopping next to me at the stop sign on [XXX] and the passenger was laughing while looking at me and they made a right turn down [XXX] and I called the police and they came within 2 minutes. It was 2 male officers one Mexican and the other white and I reported them for police misconduct because of their discrimination against me verbally calling me fat, ugly and saying I smell. They also didn’t file a police report and claimed I didn’t meet criteria which isn’t true because my right knee and left calf are bruised and swollen and I have memory loss as well as emotional stress. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ELECTRICAL SYSTEM · EXTERIOR LIGHTING

The headlight electrical wiring on my 2020 Honda Civic Sport sedan, which has 97,000 miles, has experienced deterioration, with the wire insulation disintegrating on one headlight. The Honda dealership inspected the vehicle and confirmed that the wiring insulation is breaking down naturally, not as a result of rodent damage or outside interference. The damaged wiring and headlight connector is available for inspection upon request. This creates a potential safety hazard because deteriorating wire insulation and the blown connector can expose electrical conductors, cause electrical shorts, interrupt headlight operation, and potentially create a fire risk. Headlights are critical for nighttime visibility and ensuring other drivers can see my vehicle, so any loss of headlight function could put me and other motorists at risk. The problem was confirmed by an authorized Honda dealership, which provided an estimated repair cost of approximately $360. The vehicle has been inspected by Honda dealership personnel, who identified the deteriorating wiring and blown connector, recommended repair. There were no known warning lights or dashboard messages before the issue was discovered or after. I was unaware of the deterioration until the dealership inspected the vehicle and brought the problem to my attention. I am concerned that the blown connector and wiring insulation is disintegrating prematurely on a relatively recent model-year vehicle and believe this could be a broader manufacturing or material defect that may affect other Honda Civic owners.

POWER TRAIN

My 2020 Honda Civic Sport Hatchback, 1.5L turbo, 6-speed manual, has experienced repeat premature clutch-system failure. The original clutch/flywheel assembly failed at about 34,000 miles. Honda repaired it under TSB 22-017, which addresses supplier production issues causing premature friction-disc wear. Honda advised that updated components were installed. Significant clutch slipping began again in early June 2026. At about 61,500 total miles, only about 27,500 miles after the first repair, transmission removal and clutch-component replacement were required. The onset date entered is approximate. The dealer documented: "Clutch shows sign of Heat Buildup on flywheel and pressure plate with debris inside bellhousing on release bearing. Recommend replacing Pressure plate, Friction Disc, and release bearing." Inspection photos show substantial heat discoloration of the pressure plate/flywheel and heat/glazing of the friction disc. The servicing Honda dealer did not identify driver abuse or improper clutch operation as the cause. No significant fluid contamination or catastrophic transmission damage was identified to me. I have substantial manual-transmission driving experience without comparable repeated failures. Clutch slipping allows RPM to rise without corresponding acceleration, creating a potential unexpected inability to accelerate when merging, entering traffic, crossing intersections or climbing grades. Honda classified this as out-of-warranty wear and tear. I request that NHTSA retain and compare this repeat premature failure, including failure of Honda's updated replacement, with other Civic manual-transmission complaints. Repair orders, photos, mileage documentation and the TSB can be provided upon request.

SEAT BELTS

"The dealer invoice for my 2020 Honda Civic explicitly diagnosed a seatbelt 'internal failure.' Honda Corporate verbally denied coverage by claiming an undocumented seat cover obstruction. I was forced to pay $482.32 out-of-pocket for a safety component covered under Honda's 15-Year/150,000-Mile safety warranty."

UNKNOWN OR OTHER

ac compressor failure. This is a known defect in ALL 10th Generation Honda vehicles. My 2020 Honda Civic Sport at 44K miles AC compressor has failed. The extended warranty that Honda issued will not cover a new compressor that Honda has diagnosed it needs. I have been fighting very hard with Honda Corporate to Goodwill a compressor replacement which they priced at over $2,500 out of pocket. I have been driving in over 100 degrees weather for over 2 months with no cold air. Pacific Honda in San Diego did make an attempt to repair but only the 2 parts that were covered by the extended warranty which is the cam shaft seal and the condenser however this failed to fix the underlying problem which is the entire compressor. For almost 2 months have been going round and round with corporate to Goodwill a compressor replacement and after several phone calls and heated conversations they refused to help me and said a goodwill replacement on the compressor is not possible and closed the case! This is absolutely unbelievable that Honda has been making me drive in the extreme heat for so long I almost fainted several times driving and that could cost my life. Also we are expecting the most severe storms this winter in Southern California where I reside and am stationed in the US Navy and I fear my defroster will not function properly during severe rain and storms causing blinding and non-visibility which not only threatens my life but the life of my family in the vehicle and other drivers on the road near me when my vision will be completely impaired by this malfunction of the defroster. Honda has ignored my safety concerns and the imminent threat to my life and others and closed the case. Please help me. No owner of the 10th gen Hondas should ever have to go through this and Honda should absolutely be held responsible and repair any AC Compressor that fails to these owners at no cost to the buyer. Lives are at risk.

POWER TRAIN

I own a 2020 Civic Si. At about 29,000 the clutch started slipping in higher heats and going up hills. Once I noticed this the clutch degraded very quickly to the point it was unsafe to drive. By very quickly I mean in about 100 miles worth of travel. I notified Honda Corporate and opened a case with them. There is a TSB 22-017 out about the faulty clutches stating the friction material was faulty in some 19-20 models and to replace the clutch and included all parts associated to be replaced. However my car was just one year outside of the warranty even tho it was within the mileage. Since they were going to replace with the same parts that failed, I decided to do the replacement myself with an OEM clutch made for the Type R which is more appropriately matched to the torque of the vehicle and a different flywheel as the factory one increases the wear due to being dual mass. I took pictures of the process for documentation. When the transmission was opened up the friction material had basically disintegrated into chuncks. The pressure plate also seemed to be putting unnecessary amount of pressure on the bearing. Almost like the clamping force was far too much for the hydrolic system to counter and thus caused excessive slippage. Honda was going to charge $2000 to diagnose the clutch and the clutch replacement would have cost $6,000. That is an absurd amount to charge for a known faulty part. Tho the new clutch also required an upgraded CMC, I was about to install a far superior OEM part for 1/3 of the price. I wanted to submit a report in hopes that with enough complaints Honda will do a proper recall before someone in the future loses function of their clutch and potentially has an accident.

STEERING

The wheel becomes sticky/ jerky when driving at speeds over 40 mph and causes overcorrecting. It is worse around bends and makes holding the wheel straight difficult. The stickness is consistently present when on the highways making it incredibly dangerous to drive at these higher speeds as I am constantly having to overcorrect the wheel. The dealer and an independent service center have both said they have been able to reproduce the sticky steering and that it is the steering rack. There is not any warning on my dashboard to indicate this part is failing which is also problematic as I should be made aware before my steering wheel completely freezes when driving at high speeds.

ENGINE

My 2020 Honda Civic experienced engine overheating and a cylinder 3 misfire (P0303). Two independent mechanics diagnosed a blown head gasket with coolant leaking into cylinder 3. The vehicle underwent a head gasket repair under Honda’s extended warranty. Less than a week after the repair, the engine overheated again while I was driving. I pulled over, waited approximately an hour for the engine to cool, added coolant, and drove to the dealership. The dealership later reported that the cylinder head was cracked near cylinder 4, close to the exhaust valve. When I picked my car up from the dealership, I scanned the vehicle and found the P0303 cylinder 3 misfire code. I am concerned that the engine may have an unresolved problem that could cause it to overheat again, sustain further damage, or lose power while driving. The vehicle is still in my possession and available for inspection. I have an appointment with an independent mechanic on October 24, 2026, to have the engine and cooling system inspected and determine what may have caused the repeated overheating. I am submitting this complaint to bring attention to a potential engine or engine-cooling safety defect and ask NHTSA to consider whether similar problems may be affecting other vehicles.

STEERING

My car 2020 honda civic has an issue with the steering wheel. I have noticed in the past 6 months that the steering wheel has become increasingly stiff and gets stuck during turns. This is a concern of mine because at times it becomes difficult to keep in traffic lanes. The car has not been inspected by anyone.

ELECTRICAL SYSTEM

On September 27, 2026, at approximately 90,800 miles, the body control module (BCM) in my 2020 Honda Civic Hatchback failed. Symptoms included the alarm sounding on its own, warning lights illuminating on the dash, the vehicle turning its accessories on unprompted while parked (key fob was present), the battery draining, and the key fob intermittently not being recognized.

UNKNOWN OR OTHER · VISIBILITY/WIPER

The air conditioning condenser failed prematurely due to a known manufacturing defect covered under Honda's 10-year warranty extension (TSB 19-091), but the dealership, Stokes Honda North and American Honda Motor Co.’s refused to honor the coverage. I reside in Charleston, South Carolina, where summer temperatures and humidity levels are extreme. Because of this defect, the vehicle's cabin becomes dangerously hot within minutes. I frequently transport my two young children in this vehicle, and the lack of functional climate control places them at an immediate risk for severe heat exhaustion, dehydration, and heat-related illness. Furthermore, the failure of the AC system means the vehicle can no longer properly dehumidify the cabin air. During sudden South Carolina rainstorms, the windshield and windows instantly fog over, rendering the defroster useless. This causes an immediate, severe loss of visibility while driving on high-speed roads, creating a catastrophic safety hazard for myself, my children, and other drivers.

STEERING

Steering rack malfunction which is a major safety issue. It was said to be only in 2022-2025 civics but it is very clear this is happening in the 2020s as well

STEERING

When driving, especially at highway speeds where only minor tracking adjustments are needed, the steering wheel can feel like it is momentarily sticking or catching. Having to exert sudden, extra physical effort to "break" the wheel free from this sticky point. This often leads to momentary overcorrection, significantly increasing the risk of a crash.

EQUIPMENT

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 starting in January 2024. I took the vehicle to a mechanic for inspection, I was informed that the evaporator has failed and needs to be replaced. 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, medical issues and financial burden. I have severe Hyperthyroidism, and reside in CA. Due to extremely hot weather & no A/C, the heat affected my heart rate and health severely. My honda is utilized daily for employment & commitments. Without proper air conditioning in almost 3 years now, while driving my car, I was admitted into the hospital last summer 2026 for 5 days due to the extreme heat affecting my heart and almost causing me to go into a coma aka [thyroid storm]. 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.

ELECTRICAL SYSTEM

Odometer Fraud. The contact purchased a 2020 Honda Civic. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 87,000. At the time of registration, it was discovered that the mileage was 247,000.

ELECTRICAL SYSTEM · ENGINE

The turbocharger bypass control solenoid valve circuit on my 2020 Civic Si has developed an intermittent open, setting DTC P0035. I diagnosed it myself: the solenoid coil measures 45 ohms and functions when commanded via bi-directional scan tool, and supply voltage is present at the harness connector. However, the control circuit reads approximately 9V in the off state when it should be near ground, and the reading fluctuates when the harness is flexed near the connector — indicating a partial break in the wiring consistent with vibration fatigue. This is a safety concern because the ECM fault cascades to other systems. My scan report shows U0401-68 in the ABS module and U0416-68 in both the EPS and Integrated Driver Assistance modules. The result is that VSA stability control is disabled. I first noticed the problem because warning lights appear during hard cornering — precisely when stability control is most needed. Honda has acknowledged this exact failure mode. Service Bulletin 18-044 (NHTSA ID 10142655), issued June 2018, covers the 2017 Civic Type R for DTC P0035 and states the cause as: heat and the natural frequency of the harness cause the coupler wire to oscillate, producing an open circuit to the turbocharger bypass control solenoid valve. The remedy was a replacement engine wire harness kit. The Si shares the same L15B7 engine family and the same bypass control solenoid circuit, but no campaign covers it. Owner forums document numerous P0035 wiring failures on non-Type-R 1.5T Civics. I am requesting that NHTSA consider whether this defect and its effect on stability control warrants a safety investigation and expansion of the existing remedy to other 1.5T Civic models.

VISIBILITY

The contact owns a 2020 Honda Civic. The contact stated that while driving at an undisclosed speed, the compressor shaft failed, and the shaft seal caused further damage to the compressor and caused an additional failure. The contact associated the failure with Technical Service Bulletin: 23-039. The dealer was contacted and diagnosed the vehicle with compressor failure. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that the warranty only covered the shaft seal and not the compressor. The failure mileage was approximately 166,000.

EXTERIOR LIGHTING

The contact owns a 2020 Honda Civic. The contact stated that while driving at an undisclosed speed and making a turn, the headlights failed to operate properly and failed to provide adequate illumination while driving. The dealer was contacted, and headlight failure was repaired; however, headlights were not recalibrated. The manufacturer was not made aware of the failure. The failure mileage was approximately 76,000.

STEERING

The contact owns a 2020 Honda Civic. The contact stated that while driving at highway speeds, the steering wheel was sticking with resistance while turning the steering wheel to the left. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The contact was informed that the vehicle was not under a recall associated with the failure. The failure mileage was 120,000.

UNKNOWN OR OTHER · BACK OVER PREVENTION · FORWARD COLLISION AVOIDANCE

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.

UNKNOWN OR OTHER

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?

FORWARD COLLISION AVOIDANCE

At least a half dozen times the car would brake automatically when nothing was in front of the car. The BRAKE warning light would appear on the dashboard as the car abruptly slowed down. The car slowed down but never came to a complete stop. This happened at various speeds. Once on the freeway at high speeds, 3 times just before an intersection where I had a green light and other various times. I brought the car to 2 different dealers. They could not replicate the problem so they said there was nothing they could do. The courtesy car driver who gave me a ride said they occasionally experience the same thing in the courtesy car.

STRUCTURE · VISIBILITY/WIPER

I reported this issue to insurance. The facts are that when I was watching a family member’s toddler, I went to my vehicle to grab a stack of papers. While holding her, I reached in and grabbed the papers sitting directly on the back seat of the coupe vehicle (I.e., easy to reach). Upon grabbing the papers in one hand and holding her on my left hip, I shut the drivers side door and began walking toward the home. Immediately, I heard an odd sound like a rustle or possibly an animal scurrying. I looked around confused because I hadn’t seen anything and it wasn’t too dark. Then I looked closer and the entirety of my back windshield was shattered into a billion pieces leaking into my back seats and onto the car seat placed there for when I frequently pick up the toddler. I can’t help but think of what would’ve happened if she was in her car seat and the glass shards (which were many, sharp and permeating through each crevice and likely will remain until somehow discovered or hurting someone) would’ve fell there. Many honda owners experienced this issue of combustion in the rear windshield. It’s not safe or right. A recall should be made.

WHEELS

On passenger side, 4 of 5 wheel hub bolts (lug bolts) broke off during driving. The lug nuts did not come loose. The bolts actually broke off with lug nuts attached. This caused the wheel to separate from the car while driving. This caused an accident and $5,500 damage to the car. There were no warnings from the in-car information center.

POWER TRAIN

I am the second owner of this year and model of Civic. I initially bought it back in 2021 with 14,000 miles on it. The clutch slipped and blew at around 29K miles in 2023. I brought it into a honda dealership and they were at least able to replace the clutch with the SAME CLUTCH under warranty but now it's 2026 and the clutch is going out again. Clutches should not be going out this frequently. I've driven several manuals and if you were to look up this specific year and model, it is a known issue across several forums online and youtube videos for having a "weak clutch". Despite it being a known issue, Honda refuses to announce a recall or make right by their customers who bought this specific year and model. I along with other owners of this specific year and model had our "Good Will" declined after the warranty period ended; how convenient for Honda. It would've essentially cost at least $10K in repairs for an average owner over 5 years on a relatively brand new car. That's more than 30% of the car's worth and value at MSRP.. They keep saying that all of these issues and feedbacks are being reported to the NHTSA but I honestly believe they're waiting for it to be long enough for warranties to expire and hop they can sweep it under the rug. I've driven Hondas all of my life and have loved their cars but their refusal to do right by this well known issue is leaving a sour taste in my mouth.

VISIBILITY/WIPER

The vehicle has experienced a complete failure of the A/C condenser unit due to refrigerant leaks originating from manufacturing defects in the tube walls. This matches the exact physical failure described in Honda Service Bulletin TSB #19-091. However, the manufacturer is refusing coverage because this specific VIN falls just outside their current arbitrary cutoff list. This component failure directly impacts vehicle safety by disabling the vehicle's capability to dehumidify the cabin and clear a heavily fogged windshield during sudden humidity or temperature changes, causing an immediate visibility hazard.

UNKNOWN OR OTHER

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.

UNKNOWN OR OTHER

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 U.S.C. 552(B)(6)

STEERING

Steering system failed and started to jerk -- Contacted Honda and while there was a recall on the NEWER models, we experienced a similar issue on our 2020 Civic.

ELECTRICAL SYSTEM

I have owned my vehicle for nearly 18 months and absolutely NO ACTION has been taken on Honda's part to remedy this solution with the capacitor in the circuit board of the front passenger seat weight sensor. Tired of waiting! I want results. This could lead to the front passenger frontal and knee airbags deploying unexpectedly.

STEERING

The contact owns a 2020 Honda Civic. The contact stated that while operating the vehicle, the steering wheel became sticky and jerked while turning in either direction. The vehicle was taken to the local mechanic to be diagnosed, and it was determined that the electronic steering rack needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in NHTSA Campaign Number: 24V744000 (STEERING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 64,000.

WHEELS

The contact owns a 2020 Honda Civic. While driving 50 MPH on the highway, the passenger’s side wheel felt as if the wheel was about to detach, causing the vehicle to veer to the right. The vehicle returned to normal functionality and operated as designed. No warning light was illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 25E071000 (Wheels). The approximate failure mileage was 63,000.

AIR BAGS

The contact owns a 2020 Honda Civic. The contact stated that while driving 60 MPH, a bobcat crossed the road, and the bobcat was struck by the vehicle. The contact stated that there was extensive front-end damage and undercarriage damage to the vehicle. The driver’s and passenger’s side air bags did not deploy. The contact was unsure whether there was a warning light illuminated. The contact was not injured. The vehicle was driven to a gas station, inspected, and then driven back to the residence. However, the vehicle failed to accelerate above 40 MPH. The vehicle was taken to a collision center for repair. The contact received a call from the collision center and was informed that all the air bags in the vehicle had been removed and that the wires were cut and twisted together, which led the sensors to believe the air bags were still connected. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 78,000.

FUEL/PROPULSION SYSTEM

On 04/2025 the car was driving fine with no warnings or indication of a problem. Turned my car on at a parking lot and as I was driving away the car suddenly stopped, all the warning lights started coming on. I was able to turn it back on and drove it to a nearby dealer. I am the second owner of the car and Honda dealer said the fuel pump had already been replaced due to a recall. This time they said it was a secondary fuel pump that was the problem and the very expensive repair was done. Fast forward to 2/2026 and the same thing happened. This time it was scarier as it shut off as a car was backing up from a parking spot. Fortunately, the driver saw the car and was able to stop before running into me. The car failed to start, and I had to get it towed. Could not tow it to the dealer since it was late in the evening. The next morning, the car did start, but all the warnings continued to flash on the dash. The car is being towed to the dealer where the "repair" was done. All this happening within a year of repairs. This should be a recall and Honda should refund my initial repairs as this is happening to other drivers as well.

POWER TRAIN

Clutch started slipping all of a sudden. Check to see if it was under warranty said the warranty had expired because the car was over 36,000 MI did not know about the extended clutch warranty at the time that Honda was extending it due to defective parts so we replaced it ourselves. Upon tear down it was discovered that the clutch disc was only about 30% worn down there were no hot spots in the flywheel or the clutch cover so the problem was related to the holding force of the clutch cover have we continued to drive the car the way it was it would have burnt it up because it would barely move. I've been in Autotech for 50 years never seen a clutch slipping with this much material left on it and the parts in this condition it is obviously a defect with the part and I submitted a claim to Honda and they denied it had I had known Honda would have taken care of it I would have brought it to them.

FUEL/PROPULSION SYSTEM

Fuel pump issue. There is an active recall for this make and model but this vin isn’t included. The car will be fine and either completely shut down or once parked it won’t restart. After about an hour it will start and be fine. We took to a local mechanic who diagnosed the fuel pump. Said there was a recall so we went to the local dealership. They said it isn’t included and they can’t get the fuel pumps as they are being held for recalls only. The car continues to have this issue which is unsafe. I’ve contacted Honda corporate who are trying to get a fuel pump for us. We believe this should be included in the recall and should be looked into further I’m listing the most recent incident date but it’s happened at least 20 times since August 2025

POWER TRAIN

This model Civic Si was build by Honda with a defective clutch. Mine began to fail at less than 60K miles. It started in the higher RPM 5K to 6K in the taller overdrive gears. This clutch design was unable to support the torque of the motor, which led to its premature failure. It's well documented in Honda forums that the clutch is weak and prone to early failure. It usually starts to fail in the upper gears under moderate acceleration. Once it starts to fail it does become a problem. Honda appears to be aware of the problem as they did have a TSB out that allowed for replacement for 5 years of 60K miles. However, reports on the internet seem to state Honda charges $2K just to tear down the car to look at the clutch. My car was low mileage and still hasn't hit 60K miles but outside the 5 year warranty. However, even if Honda had agreed to replace the clutch they reportedly leave the original dual mass flywheel, which would contribute to a shorter life span for the new clutch they just installed. The OEM manufacturer Exedy won't sell you the same clutch that Honda put into this car, and will only sell you the clutch from the type R. Thus it does appear clear that both Exedy and Honda were fully aware of the manufacturer defective clutch. A clutch like this should last over 100K miles. However, Honda rather then recalling them appears to have just thrown it to the wind and is willing to just let whatever happens pan out and see what's left . The failure of this clutch once it starts to slip does appear to be a relatively short process before total failure. Although it appears there has been no deaths so far there is a good chance someone will delay replacing that clutch because of cost, which could lead to a severe auto-accident or death. Even if Honda doesn't want to do a recall or reimburse their car owners they should at least issue an alert to owners about their defective clutch with free inspections. Respectfully submitted.

ELECTRICAL SYSTEM · UNKNOWN OR OTHER

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.

ELECTRICAL SYSTEM

vehicle turns on in to accessory mode, does not allow me to turn off vehicle sometimes car turns on at night by itself, alarm goes off when parked and locked

AIR BAGS

The contact owns a 2020 Honda Civic. The contact received notification of NHTSA Campaign Number: 24V064000 (AIR BAGS). The vehicle was taken to the dealer for the recall repairs, and the contact was informed that the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

FORWARD COLLISION AVOIDANCE

The collision mitigation braking system consistently detects objects in the road and forcibly brakes when the road ahead of me is completely empty. This has happened 4 or 5 times just in the last year. The first time it happened I was driving on a completely empty road when the CMBS activated and kept slamming on the brakes until I pulled over and restarted the entire car. I don't always have to restart the car every time, but if it ever happens on a busy road it will cause an accident. The dealership refuses to inspect the system or try to recreate the problem despite the fact that there was a class-action suit against Honda for this exact CMBS malfunction in several other models. They just tell me to manually turn it off every time I get in the car. I am human and sometimes I forget, so this is not a solution. I'm afraid that this buggy "safety" system is going to get me and my child killed one of these days. I am happy to have the system inspected, but it doesn't keep a log of every time it activates so there's no real way to verify the false positives, and it happens randomly so it's very hard to recreate.

STEERING · SUSPENSION · UNKNOWN OR OTHER

I was driving to work in the rain on the highway and I heard a big thump and I thought I had hit something and my wheel went sideways and I kept trying to keep my car on the road even though I didn’t hit anything.

POWER TRAIN

My 2020 Civic Si had a total clutch failure at <32,000 miles matching TSB22-017 exactly. The vehicle failed to accelerate on a major interstate. The posted speed limit is 65 mph. While attempting to reach that speed the vehicle was revving at >6000RPM in all gears. I was able to reach 50 mph for short periods, but the vehicle would then slow to 45 or lower. An extreme safety risk on a busy highway. When the vehicle was pulled to the shoulder and stopped, the car would not go into 1st gear at all, leaving me stranded on the side of a busy interstate highway. This vehicle has been properly maintained with no modifications and no abusive driving.

POWER TRAIN

Honda CVT transmission fluid seal leak cause by failed torque converter. Car has a perfect maintenance history, all fluid changes done on time with Allen Honda at Bryan Texas including filters associated. Car is garage kept, not driven hard. Always driven in economy mode for smooth efficiency. Failure occurred at 86,165 miles. Significant enough I am reporting this, as it is a safety issue, however don't know if other Honda civics have had this issue. A normal CVT transmission should last 150,000 miles before issues start according to manufacturer (Honda) who built the car. Two photos attached displaying the leak and puddle on my driveway. Leak is a slow drip, fixing it in the morning at a shop which will put me out of almost $3000 not under warranty because car is 6 years of age instead of 5 years. Honda needs to be made aware this is a serious safety concern, had I not caught it, it could have led to crash possibly, or fire from overheating. Leaking areas circled in red. Car currently not drivable, having to tow it in the morning to replace failed parts.

VISIBILITY

The contact owns a 2020 Honda Civic. The contact stated that while sitting in the vehicle with the vehicle turned off, the contact heard a pop. Upon inspection, the contact discovered that the rear windshield had cracked without impact. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 48,821. The VIN was unavailable.

AIR BAGS

The contact owns a 2020 Honda Civic. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags); however, the part to do the recall repair was not yet available. The dealer was contacted and informed the contact that parts for the recall repair were on backorder. No information on when parts would be available was provided. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

AIR BAGS

My 2020 Honda Civic's passenger seat weight sensor failed due to an internal electrical failure. This is an officially diagnosed issue from a Honda Dealership. This put's my passenger's at risk as the airbags will not deploy due to the sensor not reading the passenger's weight. The vehicle has not been in an accident that would have caused this sensor to fail. On 10/16 the SRS light (reading airbag system problem) first showed while driving. The light is still on.

STEERING

My steering gradually stiffens then suddenly releases while traveling the highway. It cycled this way during the entire trip. It acted this way for the first time Oct 22, 2025 on the outgoing part of my hour long trip. It acted this way the second time Oct 25, 2025 on the hour long return drive home. I was the only one in the car at the time. Therefor, it put my own safety in jeopardy plus those traveling the highway at the same time I was traveling on the highway. I am calling my Honda dealership in the morning, Monday October 27, 2025, to set up an appointment to bring my car in. There were no warning lamps, messages nor other symptoms of the problem prior to the failure and when it first appeared on Oct 22, 2025. I find that I am not the only one experiencing this problem with a 2020 Honda Civic SI a 10th generation Civic.

AIR BAGS

The vehicle was moving forward at 10 mph and went over a manhole cover that was protruding 4 inches out of the ground that was on the driver’s side. The manhole cover came in contact with the underside of the car and set the front driver’s side airbag off.

ELECTRICAL SYSTEM

Q: What component or system failed or malfunctioned, and is it available for inspection upon request? A: BCM (body mechanical module) became faulty, causing car to turn on ignition by itself. Would be sitting in car with it off and the ignition would turn on causing issues with battery and gas consumption. Also in order to save that until it was figured out what was wrong I had to disconnect the battery causing multiple resets to my electrical system. Yes. Q: How was your safety or the safety of others put at risk? A: Would be sitting in car with it off and the ignition would turn on causing startling and issues with battery and gas consumption. Q: Has the problem been reproduced or confirmed by a dealer or independent service center? A: Confirmed and fixed so far by a small and independent electrical mechanic. Q: Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? A: No. Q: Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? A: No.