2018 Jeep Wrangler engine problems
98 owner complaints filed with NHTSA name the engine on the 2018 Jeep Wrangler — 5% of all complaints for this model year.
What owners report
“I purchased this 2018 Jeep Wrangler JK Unlimited on July 19, 2025. Since purchasing the vehicle, I have experienced repeated mechanical failures that have required multiple repairs. The most serious issue involves the engine overheating at highway speeds without any visible coolant leak or clearly…”
filed Jul 13, 2026
“What component or system failed or malfunctioned, and is it available for inspection upon request? Jeep started on fire and is still at a tow yard in Belchertown, MA How was your safety or the safety of others put at risk? The Jeep started on fire while I was driving. I pulled over as the engine…”
filed Jun 22, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
CORE – HEATER
113271 · Service Bulletin/Repair Instructions · issued Jul 7, 2026CORE – HEATER
113270 · Service Bulletin/Repair Instructions · issued Jul 7, 2026BOLT - HEX FLANGE HEAD
112842 · Service Bulletin/Repair Instructions · issued Jun 18, 2026
Engine problems in other Wrangler years
| Year | Reports | Share |
|---|---|---|
| 2025 Wrangler | 23 | 39% |
| 2024 Wrangler | 390 | 59% |
| 2023 Wrangler | 95 | 28% |
| 2022 Wrangler | 85 | 23% |
| 2021 Wrangler | 213 | 24% |
| 2020 Wrangler | 50 | 8% |
| 2019 Wrangler | 42 | 6% |
| 2017 Wrangler | 61 | 20% |
| 2016 Wrangler | 88 | 19% |
| 2015 Wrangler | 125 | 27% |
| 2014 Wrangler | 322 | 50% |
| 2013 Wrangler | 140 | 22% |
Other reported problem areas on the 2018 Jeep Wrangler
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.