GMC 2003 Sonoma Owner's Manual page 359

Instrument Panel Fuse Block
The instrument panel fuse
block is located at the end
of the instrument panel
on the driver's side of the
vehicle.
Remove the cover by turning the fastener
counterclockwise. Extra fuses and the fuse extractor are
provided in the cover. To reinstall the fuse panel
cover, push in and turn the fastener clockwise.
Fuse
A
B
1
Usage
Not Used
Not Used
Not Used
Cigarette Lighter, Data Link
Connector
Cruise Control Module and Switch,
Body Control Module, Heated Seats
5-96