2008 Toyota Sienna Problems: 5 Issues Every Owner Should Know
2008 model year · 8,090+ owner reports · Updated July 2026
According to Au7o's analysis of 8,090+ owner reports, the 2008 Toyota Sienna has 5 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Power Sliding Door Malfunction with 3,200 owner reports. Across all issues with published estimates, repair costs range from $50 to $3,800. DIY maintenance guides at au7o.io.