Diagsheet

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 Sep 9, 2026

55 of the 1,867 complaints on this car describe A/C failure.

Tick what matches of 55 reports

14
2
5
13
1

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 the this problem covers the 2018 model year as of Sep 9, 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.

$250$1,000$1,800
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 17,000 and 50,000 miles, from the 23 reports that gave a mileage.

318
1520
421
1122
923
124
525
726

What owners wrote

“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

“When driving and removing foot from the acceleration pedal, allowing my car to slow without hitting my brake, I have noticed a loud humming/vibration around the 40 mph speed. It is very dangerous because it distracts my driving. I have tried powering off radio and ac/heater, rolling windows down and opening sunroof. Nothing seems to stop the noise.”

Filed Mar 4, 2023

“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.

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