Two problems related to clutch broken have been reported for the 2018 Honda Accord. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Honda Accord based on all problems reported for the 2018 Accord.
2018 Honda Accord 2. 0t touring with 10-speed automatic transmission, mileage < 1000. Transmission has rough shifting from 2nd into 3rd gear at low rpms/speed (2,000 rpm / < 14mph) feeling like a manual shift car popping the clutch. This can happen when car is cold or warmed up, car is in the northeast with cold or hot weather. I noticed that the rpms don't drop when it happens which creates the slam into gear feeling judder. Under slightly harder but normal acceieration the car shifts (like a manual car ) as if double clutching from 2-3rd feeling like its skipping a gear but its very quick as you hear the engine revs blip between shifts. I have taken to the dealer who observed the same rough shifting and told by dealer it does shift like this compared to other Accord vehicles. Dealer indicated they would only observe the condition since Honda has no official tsa out yet. I showed him the Acura video for the same engine/trans a clutch fix break-in that's was used to help solve some reported rough shifting and Honda dealer would not use it given Acura use case. I am on 7,000 miles but under 1yr ownership and the same rough shift condition exist but less severe. Some internet reports state rough shifting goes away above 7k miles as the transmission breaks-in and the software learns the driving behavior but it really has not in my experience. Hard acceleration going above 4500 rpm the car shifts quite normally and smoothly and does not exhibit the low speed rough shifting in any of the normal or sport modes of the car thus surmising there's some form of operational failure occurring by unintentional design in software or mechanical.
New Honda Accord 2. 0t with 10-speed automatic transmission shifts very rough and slow from 2nd to 3rd gear. This issue has been well documented on Honda Accord owner forums and Acura rdx owner forums (the two vehicles share the same engine and transmission). The vehicle normally shifts hard from 2nd to 3rd, but occasionally it is very slow to engaged 3rd gear and then slams into gear. It's very strange how it feels. It can cause there to be a hesitation when trying to rapidly accelerate out into traffic and feels like it's damaging the transmission. Vehicle has been taken to leith Honda of raleigh who advised there's no TSB or campaign from Honda to resolve this issue. There is however a video that Acura has posted for their service technicians advising them to follow a "clutch break in procedure" to resolve the rough shifting.