2018 Honda Accord · symptom sheet
Head gasket fails or coolant leaks into the engine
- 328owner reports
- 94,000median miles
- $4,800median quote
- 2involved a crash
Newest report Sep 4, 2026 · checked Sep 19, 2026
328 of the 342 reports of overheating on the 2018 Accord describe head gasket failure.
Part of Engine overheats or leaks coolant (342 reports)
Tick what matches of 328 reports
What got replaced
Owners who name the part that was replaced mention the head gasket (326 reports), the water pump (4 reports) and the engine (3 reports).
Recalls and investigations
No recall on the engine covers the 2018 model year as of Sep 19, 2026.
NHTSA investigations into the engine on the Accord
Honda high engine speed. Closed may 4, 1987.
NHTSA summary
None of these investigations covers the 2018 model year.
What owners paid
101 of the 328 reports quote a price. Each dot is one quote. The middle half runs $3,000 to $6,000.
When it happens
The middle half of failures fell between 75,000 and 114,848 miles, from the 133 reports that gave a mileage.
What owners wrote
“I was on the highway with moderate traffic. My car would no longer accelerate due to a blown head gasket out of nowhere, I was on the far left lane and had to traverse over 5 lanes in moderate traffic while other drivers on the highway were going 60+ mph. This is a common issue among Honda Accords with the 1.5 engines.”
Filed Jan 3, 2025 · 69,043 miles
“Drove to work, about 35 miles. Few hours later went to leave to get a cup of coffee, started car and ALL lights came on dash and seems like every feature cycled through indicated nonfunctional. Drove to dealership, head gasket leak and piston misfiring, $4200. Car is a 2018 Honda Accord EX-L with 62000 miles. Seems strange to have such an extensive issue with a honda with such low miles. Can you investigate. Thanks”
Filed Jun 11, 2024 · 62,000 miles
“This 1.5T has had alot of complaints about head gaskets going out. 50K miles i had it headgaskey went bad”
Filed Feb 9, 2024 · 50,000 miles
“101,848 miles on odometer. Blown head gasket. Numerous other 2018-2020 Honda Accords have same issue. Leaking damaged gasket causes car to lose power leading to potential safety issue.”
Filed Jan 25, 2024 · 101,848 miles
Should you keep driving it?
This page can't tell you that. 2 of 328 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.
Other problems on this car
- Check engine light or misfire 277 reports
- Brakes grind, pulse or wear early 255 reports
- Engine stalls or loses power while driving 247 reports
- Brakes on its own (automatic emergency braking) 227 reports
- Engine failure, knocking or rod bearing 164 reports
- Fuel pump failure 153 reports
- Multiple warning lights come on at once 121 reports
- Infotainment, screen or backup camera fails 109 reports
- Adaptive cruise or lane keeping misbehaves 103 reports
- Turbo failure or loss of boost 98 reports
- Forward collision warning goes off or the camera drops out 92 reports
- Airbag warning light or recall 58 reports
- A/C blows warm or the compressor fails 55 reports
- Battery dies or the car will not start 42 reports
- Loses power when accelerating 40 reports
- Seat belt or seat problems 35 reports
- Paint peels or body rusts 28 reports
- Traction control or StabiliTrak light comes on 26 reports