2018 Honda Civic: A/C not working
Common wear/failure (not a recall)
Symptoms
Owners of the 2018 Civic report: a/c not working. CarComplaints.com lists 6 owner complaints, average mileage 18,050 miles.
NHTSA has 82 owner complaints for the 2018 Civic in this area. Examples:
- NHTSA complaint ODI #11675263 (filed 07/22/2025): “Rack and pinion steering failure. sticking, hard to make wheel adjustments. loss of steering control. issue confirmed but honda dealership. honda dealership contacted honda north america and was rejected as warranty issue. repair will exceed $7500. this issue …”
- NHTSA complaint ODI #11656975 (filed 04/26/2025): “Honda recall the 2018 civic for ac compressor shaft seal and the dealer repair the ac system 3 times and the problem was not fix. also has a recall for a fuel pump motor but im not sure is was correct it for the old owner.…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: replaced condenser (2 reports) compressor had to be replaced (1 reports) honda replaced the compressor, added cooling fluid (1 reports) AC /. Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Opening the A/C system requires refrigerant recovery equipment, and US EPA Section 609 certification is required to service vehicle A/C for compensation. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $2,500 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
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