2018 Honda Accord · symptom sheet
A/C blows warm or the compressor fails
- 55owner reports
- 24,500median miles
- $1,000median quote
- 0involved a crash
Newest report Sep 1, 2026 · checked Oct 2, 2026
55 of the 1,883 complaints on this car describe A/C failure.
Tick what matches of 55 reports
A/C failure on other Accord years
No other Accord model year has enough reports of A/C failure for a sheet of its own. See every Accord year.
What this problem usually is
Most A/C complaints start the same way: the fan still blows, but the air coming out of the vents is warm or only a little cool. Some owners get cold air that fades after a while, and others hear a noise from the compressor before it quits. It's rarely a safety problem on its own, which is also why it seldom gets a recall.
What got replaced
Owners who name the part that was replaced mention the compressor (9 reports), the condenser (9 reports) and the evaporator (6 reports).
Recalls and investigations
No recall on this problem covers the 2018 model year as of Oct 2, 2026.
What owners paid
10 of the 55 reports quote a price. Each dot is one quote. The middle half runs $250 to $1,800.
When it happens
The middle half of failures fell between 17,000 and 50,000 miles, from the 23 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 3 service bulletins or notices for the 2018 Honda Accord that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Owner Notification Letter - On some 2018-20 Accord models, the A/C condenser may leak refrigerant. American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase with unlimited miles.
Today, May 28, 2021, American Honda is announcing a warranty extension for certain 2018-2020 Accord and Accord Hybrid, 2018-2020 Civic, 2017-2021 Civic Hatch, 2017-2021 Civic Type R, 2018-2021 Clarity PHEV, and 2019-2021 Insight vehicles.
American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase with unlimited miles. This warranty extension only covers vehicles that have a defective A/C condenser from the factory.
What owners wrote
“I had a coolant link problem they couldn't find or fix even after taking it in over 4 times ,how I have a blown head gasket ,also different components in my Ac keep going out have had to fix 3 times in the last 3 years, both these are know issues for this year honda”
Filed Dec 10, 2025
“AC is NOT working and it is a SAFETY ISSUE as drivers can have HEAT STROKE and other heat medical issues especially with medical conditions like me. This is the car I am driving to for everything. I saw a lot of complaints online with the same AC issues related to Honda even under 50K miles only.”
Filed Jun 28, 2023 · 50,000 miles
“The A/C system in the car blows hot air and since I have purchased the car in 2018 I had to replace the condensor three times. When the A/C is not working the car get very hot in the auto cabin. The car is almost undrivable.”
Filed Jul 8, 2022
“Our air conditioner stopped working in 2021 and the car is a 2018. I received a recall notice about the air conditioning but cannot find the letter anymore. The car will blow warm air even when the air contrition in on high.”
Filed May 25, 2022
Should you keep driving it?
This page can't tell you that. 0 of 55 reports involved a crash and 1 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Engine overheats or leaks coolant 349 reports
- Check engine light or misfire 282 reports
- Brakes grind, pulse or wear early 255 reports
- Engine stalls or loses power while driving 250 reports
- Brakes on its own (automatic emergency braking) 228 reports
- Engine failure, knocking or rod bearing 167 reports
- Fuel pump failure 155 reports
- Multiple warning lights come on at once 124 reports
- Infotainment, screen or backup camera fails 109 reports
- Adaptive cruise or lane keeping misbehaves 103 reports
- Turbo failure or loss of boost 101 reports
- Forward collision warning goes off or the camera drops out 92 reports
- Airbag warning light or recall 60 reports
- Battery dies or the car will not start 42 reports
- Loses power when accelerating 41 reports
- Seat belt or seat problems 36 reports
- Paint peels or body rusts 28 reports
- Traction control or StabiliTrak light comes on 26 reports