Service / On-board Diagnostics Information
Technical Service Information for HUMMER H1® service, repair and service parts, as well as emission-related information, may be obtained by purchasing HUMMER Technical Manuals on CD, available at authorized HUMMER dealerships.
- For a list of HUMMER dealerships, click here.
- For a list of HUMMER H1 publications, click here.
- For On-Board Diagnostic System (OBD II) information, click here.
- For Diagnostic and Reprogramming Tools information, click here.
- If you have any questions in regard to the above information, please e-mail us.