Jeep 2014 Grand Cherokee Owner's Manual page 546

544 WHAT TO DO IN EMERGENCIES
1. Remove the spare tire, jack, and tools from storage.
2. Loosen (but do not remove) the wheel lug nuts by
turning them to the left, one turn, while the wheel is
still on the ground.
3. Assemble the jack and jacking tools.
Jack And Tool Assembly
Jacking Locations
4. For the front axle, place the jack on the body flange
just behind the front tire as indicated by the triangular
lift point symbol on the sill molding. Do not raise the
vehicle until you are sure the jack is fully engaged.