GM Service Manual Online
For 1990-2009 cars only

Instrument Panel Cluster (IPC)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Display(s) Test

Output Control

The IPC illuminates all of the display segments and sweeps all gages when you select On.

Cluster Dimming

Output Control

The IPC dims from 0-100% when you select INCREASE or DECREASE by 20% increments.