2018 Hyundai Elantra fuel/propulsion system problems
19 owner complaints filed with NHTSA name the fuel/propulsion system on the 2018 Hyundai Elantra — 7% of all complaints for this model year.
What owners report
“Cars engines stopped for no apparent reason pulled over and it started back up but it stopped two more times within a two block radius both times it restarted the date was2/17 26 on the next day it did the same thing but only once”
filed Feb 19, 2026
“I have a 2018 Hyundai Elantra with about 155k miles. It has been consuming oil excessively and has developed serious drivability issues. If I try to accelerate even slightly harder than normal—especially above 2,000 RPM—it makes a metallic, chain-type rattling noise, loses power, and produces heavy…”
filed Dec 27, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Elantra years
| Year | Reports | Share |
|---|---|---|
| 2024 Elantra | 1 | 2% |
| 2023 Elantra | 4 | 4% |
| 2022 Elantra | 2 | 2% |
| 2020 Elantra | 9 | 4% |
| 2019 Elantra | 3 | 1% |
| 2017 Elantra | 27 | 4% |
| 2016 Elantra | 18 | 6% |
| 2015 Elantra | 10 | 4% |
| 2014 Elantra | 22 | 6% |
| 2013 Elantra | 27 | 2% |
| 2012 Elantra | 15 | 2% |
| 2011 Elantra | 6 | 1% |
Other reported problem areas on the 2018 Hyundai Elantra
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.