2018 Toyota 4Runner Problems: 5 Issues Every Owner Should Know
2018 model year ยท 4,207+ owner reports ยท Updated April 2026
According to Au7o's analysis of 4,207+ owner reports, the 2018 Toyota 4Runner has 5 documented known issues, with 1 rated critical. The most serious is Frame Rust and Corrosion ($200-$15,000 repair). The most commonly reported issue is Frame Rust and Corrosion with 1,654 owner reports. Across all issues, repair costs range from $50 to $15,000. DIY maintenance guides at au7o.io.