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Home/DTC Codes/GMC/Sierra 2500HD

GMC Sierra 2500HD DTC Codes

Select your year and engine to view applicable diagnostic trouble codes.

6 Configurations

2020-2024

6.6L V8 L8T

971 DTC codes

2017-2024

6.6L V8 Duramax Diesel

821 DTC codes

diesel

2007-2016

6.0L V8 Vortec

960 DTC codes

2007-2016

6.6L V8 Duramax Diesel

821 DTC codes

diesel

2001-2006

6.6L V8 Duramax Diesel

720 DTC codes

diesel

1999-2006

6.0L V8 Vortec

875 DTC codes

View GMC Sierra 2500HD Labor Times | View Torque Specs | View Fluid Specs