2020 Honda Civic power train problems

“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…”

“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…”

“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.”

“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…”

“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.”

“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.”