1993 Cadillac DeVille Owner's Manual - Page 202

The fact that such emergency situations are always possible is agood reason to practice defensive driving at all times. OFF-ROAD RECOVERY You may find sometime thatyour right wheels havedropped off the edge of a road onto theshoulder while you're driving. If the level of the shoulder is only slightly belowthe 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 the pavement. of You can turn thesteering wheel up to1/4 turn until the right front tire contacts the pavement edge.Then turnyour steering wheel to go straight down the roadway.