Locking Rear Axle (Option); Four-Wheel Drive - Chevrolet 1996 Tahoe Owner's Manual

Locking Rear Axle (Option)
If you have this feature, your rear axle can give you
additional traction on snow, mud, ice, sand or gravel. It
works like a standard axle most of the time, but when
one of the rear wheels has no traction and the other does,
the locking feature will allow the wheel with traction to
move the vehicle.
Four-wheel Drive
If your vehicle has four-wheel drive, you can send your
engine's driving power to all four wheels for extra
traction. To get the most satisfaction out of four-wheel
drive, you must be familiar with its operation. Read the
part that follows before using four-wheel drive. You
should use 2-WHEEL HIGH (2H) for most normal
driving conditions.
NOTICE:
Driving in the 4-WHEEL HIGH (4H) or
$-WHEEL LOW (4L) positions for a long time
on dry or wet pavement could shorten the life of
your vehicle's drivetrain.
Front Axle Locking Feature
The front axle locks and unlocks automatically when you
shift the transfer case. Some delay for the axle to lock or
unlock is normal. If the outside temperature is very hot, or
the vehicle has been used under hard driving conditions,
there may be a slight delay for the axle to unlock.
Manual Transfer Case
The transfer case shift lever is on the floor to the right of
the driver. Use this lever to shift into and out of
four-wheel drive.
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