2018 Honda Accord power train problems
130 owner complaints filed with NHTSA name the power train on the 2018 Honda Accord — 7% of all complaints for this model year.
What owners report
“I own a 2018 Honda Accord LX 1.5T. The vehicle has developed an intermittent hard-start condition after sitting overnight. The engine cranks for approximately 5–6 seconds before starting and runs very rough for the first 2–5 seconds before smoothing out. Warm restarts are normal. While driving, the…”
filed Jul 11, 2026
“Head gasket failure, coolant leaking into cylinder 1 and 3. Car stuttering when try to accelerate and has trouble getting up to speed on highway. Coolant mixing with oil, rear main seal leak. It is available for inspection currently at dealership where it was diagnosed. My safety was jeopardized…”
filed Jul 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Accord years
| Year | Reports | Share |
|---|---|---|
| 2025 Accord | 4 | 5% |
| 2024 Accord | 5 | 4% |
| 2023 Accord | 3 | 4% |
| 2022 Accord | 6 | 3% |
| 2021 Accord | 11 | 5% |
| 2020 Accord | 15 | 4% |
| 2019 Accord | 43 | 7% |
| 2017 Accord | 33 | 6% |
| 2016 Accord | 29 | 5% |
| 2015 Accord | 40 | 7% |
| 2014 Accord | 63 | 6% |
| 2013 Accord | 109 | 8% |
Other reported problem areas on the 2018 Honda Accord
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.