Diagsheet

2020 Honda Accord · symptom sheet

Engine overheats or leaks coolant

  • 28owner reports
  • 100,000median miles
  • 0involved a crash

Newest report Aug 25, 2026 · checked Sep 19, 2026

72 of the 356 complaints on this car are about the engine. 28 of those describe overheating.

Narrower sheets: Head gasket fails or coolant leaks into the engine (26 reports)

Tick what matches of 28 reports

7
10
6
26

What got replaced

Owners who name the part that was replaced mention the head gasket (26 reports).

Recalls and investigations

No recall on the engine covers the 2020 model year as of Sep 19, 2026.

NHTSA investigations into the engine on the Accord

DP87-013opened Mar 3, 1987
Engine And Engine Cooling · model years 1984 to 1986

Honda high engine speed. Closed may 4, 1987.

NHTSA summary
HONDA HIGH ENGINE SPEED

None of these investigations covers the 2020 model year.

When it happens

The middle half of failures fell between 85,741 and 120,000 miles, from the 11 reports that gave a mileage.

224
1025
1626

What owners wrote

“The car has a blown head gasket at 72k miles the odometer. This seems to be a major problem with 2018-2022 honda accords with the 1.5 turbo engine. it also has a bad fuel pump.”

Filed Aug 10, 2026 · 72,000 miles

“Engine began running rough and warning lights came on the dash indicating multiple issues and the engine light. Brought it to Honda and the tech diagnosed a head gasket failure. Honda recommended a head gasket repair. Car only has 137,000 miles on it.”

Filed May 28, 2026 · 137,000 miles

“ENGINE,Coolant system VEHICLE WAS CUTTING OFF IN THE MIDDLE OF DRIVING SHAKING AND JERKING”

Filed Jan 6, 2026

“Car has only 73k miles , fails to accelerate unless it’s left to run for an hr . All lights on dash . Replaced spark plugs, coils and battery to no avail and Took to get diagnosed and was told head gasket and quoted 7k to fix. When car does drive it immediately accelerates to 40 on dash which could cause collision leaving me to feel unsafe to drive .”

Filed Aug 8, 2025 · 73,000 miles

Should you keep driving it?

This page can't tell you that. 0 of 28 reports involved a crash. 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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