Buick 2001 LeSabre Owner's Manual page 264

CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even make
the vehicle fall. To help avoid personal injury and
vehicle damage, be sure to fit the jack lift head
into the proper location before raising
the vehicle.
5. Raise the vehicle by turning the wheel wrench
clockwise in the jack. Raise the vehicle far enough
so there's enough room for the spare tire to fit under
the wheel well.
6. Remove all the wheel nuts and take off the flat tire.
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