Except "C" & "K" Series With Cruise Control
WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1992 Pontiac Trans Sport, 1992 Oldsmobile Silhouette, 1992 Oldsmobile Bravada, 1992 GMC Yukon, and 1992 GMC Vandura Special. However, it is still accessible from the selected car via links, so may be relevant.
Depress and hold brake pedal. Push switch forward until firmly seated in retaining clip. Pull brake pedal rearward against pedal stop (clicks can be heard as switch ratchets through retaining clip). Release brake pedal. Switch is adjusted if brake lights do not come on with pedal released.