1997 Chevrolet Impala — Known Issues & Recalls

Your tires are wearing out unusually fast. The dealership found your rear wheels were misaligned, which caused premature tire wear even after they installed four new tires at no cost. Between oil changes just two months apart, your tire tread depth dropped significantly (from 8/32 to 6/32), suggesting the alignment problem may have returned. The fix will likely involve a complete wheel alignment check and adjustment, possibly followed by new tires if the problem recurs.