Chevrolet 2007 HH7 Owner's Manual page 360

2. Position the jack and raise the jack lift head to
fit over the car flange under the down arrow
markings on the rocker panel.
360
CAUTION:
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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.