Manual Transfer Case - Chevrolet 1997 Blazer Owner's Manual

Manual Transfer Case
If your four-wheel-drive vehicle has the manual transfer
case, the transfer case shift lever is on the floor next to
the driver. Use this lever to shift into and out of
four-wheel drive.
An indicator light near the lever shows you the transfer
case settings:
2HI
0
4HI
0
N SET PARK BRAKE
4LO
2-24