GMC 1993 Jimmy Owner's Manual page 142

Features & Controls
Turn Signal and Lane Change indicator
Standard Cluster Djgjtal Cluster
PO251
This light with the green arrows is on the instrument cluster. The turn signal
indicator will come on whenever you signal a turn or lane change. See "Turn
and Lane Change Signal"
in this section.
Gages
Fuel Gage
Standard Cluster Digital
Cluster
KO272
The fuel gage tells you about how much fuel you have left, when the ignition
is on. When the gage first indicates empty, you still have a little fuel left, but
you should get more fuel soon.