Hummer H2 2-Speed Full-Time 4WD & Traction Control (TCS/TC2) Brochure Excerpt

This document is a scanned excerpt from Hummer H2 marketing/brochure literature describing the vehicle's drivetrain technology. It includes a detailed cutaway illustration of the H2's two-speed transfer case, showing its internal chain drive and gearing. The accompanying text explains the H2's 2-speed electronically-controlled full-time 4WD system, which the brochure calls perhaps the most advanced ever offered on a consumer vehicle. It describes the Traction Control System (TCS): the system continually monitors the rotational speed of each wheel, applies braking pressure to any wheel that is spinning faster than the others, and transfers available torque to the wheels that have traction. The brochure claims that with this system an H2 with three spinning wheels can still move forward, even on a 10% upward grade. It also describes an additional mode, the TC2 setting, which allows extra wheel slip before traction control intervenes so the wheels can "paddle" through soft surfaces such as deep sand or snow. A reader learns how the H2's traction control operates, what the TC2 mode is for, and gets a visual reference of the transfer case internals. Note: although uploaded to a 1986 Ford F-250 gallery, the document itself pertains to the Hummer H2.