GMC 1994 Sonoma Owner's Manual page 217

Rocking your vehicle to get it out:
First, turn your steering wheel left and right. That will clear the area around
your front wheels. Then shift back and forth between "R" (Reverse) and a
forward gear (or with a manual transmission, between First or Second gear
and Reverse), spinning the wheels as little as possible. Release the
accelerator pedal while you shift, and press lightly on the accelerator pedal
when the transmission is in gear. If that doesn't get you out after a few tries,
you may need to be towed out. Or, you can use your recovery hooks, if your
vehicle has them. If you do need to be towed out, see "Towing Your
Vehicle" in the Index.
Using the Recovery Hooks
If you ever get stuck in sand, mud, ice or snow, your vehicle may be
equipped with recovery hooks. The recovery hooks are provided at the front
of your vehicle. You may need to use them if you're stuck off-road and
need to be pulled to some place where you can continue driving.
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