This manual covers the Hummer H1 / Humvee Commercial models produced for the 1997 and 1998 model years. Evolved from the highly capable military HMMWV, the civilian H1 is engineered for extreme durability and unparalleled off-road performance. Its robust construction, high ground clearance, and formidable presence make it a unique vehicle designed for demanding commercial, industrial, and specialized civilian applications. This C-Series variant emphasizes rugged utility and the exceptional capability that defines the Hummer legacy.

This comprehensive service and repair manual provides detailed information essential for maintaining and repairing your Hummer H1. It covers all major systems, including the powertrain, chassis, and electrical systems, offering step-by-step procedures for scheduled maintenance, component repair, and troubleshooting. With extensive coverage of engine specifications, transmission details, and body components, this manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their vehicle.