See also:

Door Latches
Check for positive closing, latching, and locking. ...

Automatic Door Locks — If Equipped
The auto door lock feature default condition is disabled. When enabled, the door locks will lock automatically when the vehicle’s speed exceeds 15 mph (24 km/h). The auto door lock feature can ...

Manufacturing
The all-new 2011 Jeep Grand Cherokee will be built at the 2.7-million-square-foot Jefferson North Assembly Plant (JNAP) in Detroit, which has been the site of Jeep Grand Cherokee production since ...