GM Service Manual Online
For 1990-2009 cars only

The instrument panel has been modified with an accessory panel mounted below the accessory power outlets. This panel houses the blackout (B/O) lighting auxiliary switches, 24V voltmeter gage and a air filter restriction gage (if equipped). The instrument panel houses auxiliary harnesses as well as standard indicators.

Some modifications have been made to the instrument panel to accommodate auxiliary harness connections and convenience/fuse centers.