Two problems related to air conditioner 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.
Air conditioning system has foul smell. Took car into the dealer but they didn't do anything to resolve it.
In December 2019, my car air conditioner was making an unusal noise when being turned on. I took the car to the dealer and the technician there said that the air condenser was leaking. He added that it would be a >$1000 charge to fix this issue. At that time, because the weather was not too hot, the air conditioner was not a big issue so I did not fix it then. However, in June 2020, the air conditioner was blowing warm air and it was a hot summer so I had to pay >$1000 to fix it by the dealer. I saw the recall for Honda civic model of the same year being claimed for the same issue so I talked to the manufacturer, but they were saying that the recall does not apply to Honda Accord models. However, my brother, who has the same model of the same year, had the same issue so he had to fix the problem as well. I also have seen several similar cases with the air conditioner of the same model manufactured in the same year. I believe, just like the civic models, a thorough investigation needs to be performed about this issue. If you google "Honda Accord air conditioner', it is not difficult to find the issue. I hope my appeal prevents any unfortunate, unexpected and still unfair cost to the vehicle owners. This is an air conditioning problem so in summer this could be a safety issue. Please investigate this issue thoroughly. - owner of 2018 Honda Accord.