Chevrolet Sonic Problems: 4 Issues Every Owner Should Know
2012-2020 model years · 1,460+ owner reports · Updated April 2026
According to Au7o's analysis of 1,460+ owner reports, the 2012-2020 Chevrolet Sonic has 4 documented known issues, with 1 rated critical. The most serious is 6-Speed Automatic Transmission Turbine Shaft Fracture ($2,000-$4,000 repair). The most commonly reported issue is 1.4L Turbo PCV Valve Cover Diaphragm Failure with 450 owner reports. Across all issues, repair costs range from $50 to $4,000. DIY maintenance guides at au7o.io.