2018 Honda Accord · symptom sheet
Turbo failure or loss of boost
- 101owner reports
- 110,000median miles
- $4,000median quote
- 2involved a crash
Newest report Sep 18, 2026 · checked Oct 2, 2026
581 of the 1,883 complaints on this car are about the engine. 101 of those describe turbo problems.
Tick what matches of 101 reports
Turbo problems on other Accord years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
Turbo complaints describe an engine that suddenly doesn't pull: power drops away when you press for it, sometimes with a warning light, smoke from the tailpipe or a message about reduced power.
What got replaced
Owners who name the part that was replaced mention the turbocharger (101 reports) and the boost sensor (3 reports).
Recalls and investigations
No recall on the engine covers the 2018 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Accord
Honda high engine speed. Closed may 4, 1987.
None of these investigations covers the 2018 model year.
What owners paid
33 of the 101 reports quote a price. Each dot is one quote. The middle half runs $2,000 to $5,000.
When it happens
The middle half of failures fell between 81,000 and 135,000 miles, from the 39 reports that gave a mileage.
What owners wrote
“Turbo Charger is failing. Dealer ran the codes and confirmed. All warning lights are cycling through.”
Filed Jun 1, 2026
“2018 Honda Accord with blown head gasket. Vehicle has a 1.5L turbo charged engine and 100,000 miles.”
Filed Apr 14, 2026 · 100,000 miles
“2018â2022 Accord models with 1.5L turbocharged engines are experiencing premature head gasket failures. Honda is facing class-action lawsuits regarding these engines, and there are known Technical Service Bulletins (TSBs) for issues like cylinder misfires. Full injectors .”
Filed Apr 2, 2026
“I took my accord into Snellville GA Honda dealer for fuel pump recall and the day I received it from the service department, it started to sputtter and engine shutdown. I took back 3 times and got a different answer each time. I believe the turbo charger may have been affected from the fuel pump being bad. The latest diagnostic says it has turbo under boost issue.”
Filed Mar 15, 2026
Should you keep driving it?
This page can't tell you that. 2 of 101 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. 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
- Forward collision warning goes off or the camera drops out 92 reports
- Airbag warning light or recall 60 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 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