Chevrolet 2010 Colorado Owner's Manual page 351

WARNING:
{
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.
WARNING:
{
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.
Front Position
4. Position the jack (A) under the vehicle as shown for
the front or rear locations.
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