Cadillac 1993 Fleetwood Owners Literature page 217

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If "torque lock" does occur, you may need to have another vehicle push
yours a little uphill to take some
of
the pressure from the transmission, so
you can pull the shift lever out of "P" (Park).
WINTER DRWTNG
Here are some tips for winter driving:
Have your Cadillac in good shape for winter. Be sure your engine
Snow tires can help in loose snow, but they may give you less traction
on ice than regular tires. If you do not expect to be driving in deep
snow, but may have to travel over ice, you may not want to switch to
snow tires at all.
coolant mix is correct.
You may want to put winter emergency supplies in your trunk.
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