GM Service Manual Online
For 1990-2009 cars only

Coverage Codes

General Definitions

Coverage codes designate labor operations with warranty coverage that extends from the basic. The code is a two-character alpha/numeric combination that, has an alpha letter to indicate the coverage, and a number to indicate the warranty that applies. The labor operations that have a specific coverage applied are listed in the coverage code table. The specific definition, of what the two characters mean, will be found in the coverage section just preceding the table. When reviewing the tables assure the appropriate year, make and model are being used.