2018 Jeep Wrangler Recall: Rear under body ladder rail may corrode, possibly reducing the strength of…
NHTSA campaign 18V231000 · Seats · filed Apr 12, 2018 · verified Jul 30, 2026
The defect
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The rear under body ladder rail may corrode, possibly reducing the strength of the rear floor pan and causing the left rear seat mount to become loose.
The risk
If the floor pan strength is reduced and/or the rear seat mount becomes loose, the rear seat may detach in a crash, increasing the risk of injury.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Chrysler will notify owners, and dealers will inspect and, as necessary, coat the interior and exterior of the driver's side rear underbody ladder rail with three-part rust protection. The recall began September 11, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U27.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Jeep Wrangler recalls
- 2026 Jeep Gladiator and 1 other model — Walls for the steel wheels may be too thin, allowing them…
- 2021–2025 Jeep Gladiator and 2 other models — Electric hydraulic power steering pump wiring may overheat…
- 2019–2023 Chrysler Pacifica and 3 other models — Contamination in the central vision processing module or…
- 2026 Jeep Wrangler — Child seat tether welds on the second-row, right-side seat…
- 2022–2026 Jeep Grand Cherokee and 1 other model — High voltage battery may fail internally and lead to a…
Other campaigns involving Jeep vehicles
- 2022–2024 Jeep Grand Cherokee and 3 other models — A software error may cause the transmission gear selection…
- 2026 Jeep Grand Wagoneer and 1 other model — Brake system control module software may cause a loss of…
- 2026 Jeep Grand Wagoneer and 1 other model — Front camera wiring harness may not be connected properly…
Source: NHTSA recall database, campaign 18V231000 (manufacturer number U27). Data last verified Jul 30, 2026.