Chevrolet 2007 Express 2007 Express Owner's Manual page 369

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.
4. Raise the vehicle by turning the ratchet
clockwise. Make sure the UP mark faces you.
Raise the vehicle far enough off the ground
so there is enough room for the spare
tire to fit.
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