Buick 1994 Century Owner's Manual page 151

Off-Road Recovery
You may find sometime that your right wheels have
dropped off the edge of a road onto the shoulder while
you're driving.
OFF ROAD RECOVERY
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The fact that such emergency situations are always
possible is a good reason to practice defensive driving at
all times and wear safety belts properly.
If the level of the shoulder is only slightly below the
pavement, recovery should be fairly easy. Ease off the
accelerator and then, if there is nothing in the way, steer
so that your vehicle straddles the edge of the pavement.
You can turn the steering wheel up to 1/4 turn until the
right front tire contacts the pavement edge. Then turn
your steering wheel to go straight down the roadway.
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