Chevrolet Impala Problems: 9 Issues Every Owner Should Know
2000-2020 model years ยท 0+ owner reports ยท Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2000-2020 Chevrolet Impala has 9 documented known issues, with 5 rated critical. The most serious are 4T65-E Transmission Failure and Hard Shifts ($200-$3,500 repair), 4-Speed Automatic Transmission Failure (4T65E) ($1,500-$3,500 repair), Passlock Security System No-Start Condition ($150-$600 repair), 4T65E Automatic Transmission Failure ($1,500-$4,000 repair) and Intake Manifold Gasket Leak (3.4L/3.8L V6) ($300-$1,000 repair). Across all issues, repair costs range from $0 to $4,000. DIY maintenance guides at au7o.io.