Brake Assist System Description and Operation (Hydraulic Assist): Notes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View of Brake Assist System

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Master Cylinder
2	Power Brake Booster Outlet Hose
3	Power Brake Booster Inlet Pipe/Hose
4	Hydraulic Brake Booster
5	Power Steering Gear Inlet Pipe/Hose
6	Steering Gear
7	Power Steering Cooler
8	Power Steering Pump