Chevrolet Silverado 3500HD DTC Codes
Select your year and engine to view applicable diagnostic trouble codes.
40 Configurations
2026
6.6L V8 Duramax L5P
1866 DTC codes
diesel2026
6.6L V8 L8T Gas
2016 DTC codes
2025
6.6L V8 Duramax L5P
1866 DTC codes
diesel2025
6.6L V8 L8T Gas
2016 DTC codes
2024
6.6L V8 Duramax L5P
1866 DTC codes
diesel2024
6.6L V8 L8T Gas
2016 DTC codes
2023
6.6L V8 Duramax L5P
1866 DTC codes
diesel2023
6.6L V8 L8T Gas
2016 DTC codes
2022
6.6L V8 Duramax L5P
1866 DTC codes
diesel2022
6.6L V8 L8T Gas
2016 DTC codes
2021
6.6L V8 Duramax L5P
1866 DTC codes
diesel2021
6.6L V8 L8T Gas
2016 DTC codes
2020
6.6L V8 Duramax L5P
1866 DTC codes
diesel2020
6.6L V8 L8T Gas
2016 DTC codes
2019
6.0L V8
2016 DTC codes
2019
6.6L V8 Duramax
1866 DTC codes
diesel2018
6.0L V8
2014 DTC codes
2018
6.6L V8 Duramax
1866 DTC codes
diesel2017
6.0L V8
2014 DTC codes
2017
6.6L V8 Duramax
1866 DTC codes
diesel2016
6.0L V8
2005 DTC codes
2016
6.6L V8 Duramax
1866 DTC codes
diesel2015
6.0L V8
2004 DTC codes
2015
6.6L V8 Duramax
1865 DTC codes
diesel2014
6.0L V8
2000 DTC codes
2014
6.6L V8 Duramax
1861 DTC codes
diesel2013
6.0L V8
1997 DTC codes
2013
6.6L V8 Duramax
1859 DTC codes
diesel2012
6.0L V8
1997 DTC codes
2012
6.6L V8 Duramax
1859 DTC codes
diesel2011
6.0L V8
1986 DTC codes
2011
6.6L V8 Duramax
1848 DTC codes
diesel2010
6.0L V8
1986 DTC codes
2010
6.6L V8 Duramax
1848 DTC codes
diesel2009
6.0L V8
1958 DTC codes
2009
6.6L V8 Duramax
1812 DTC codes
diesel2008
6.0L V8
1958 DTC codes
2008
6.6L V8 Duramax
1812 DTC codes
diesel2007
6.0L V8
1931 DTC codes
2007
6.6L V8 Duramax
1785 DTC codes
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