GMC 1993 Suburban Owner's Manual page 13

These symbols have to
do
with your lights:
Master Lighting
Switch
Parking Lights
I
Turn Signal
Direction
I
1
Fog Lights
Hazard Warning
Flasher
Daytime
Running Lights
Headlight
High Beam
Off
These symbols are on some of your controls:
Windshield
Wioer
Rear Window Washer
Windshield
Washer
Rear Window
Defogger
I
Windshield
Defroster
I
Rear Window Wiper
Ventilating Fan
Hatch
Release
PO595
0-5