See also:

Engine Block Heater — If Equipped
The engine block heater warms the engine, and permits quicker starts in cold weather. Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. ...

Premium Performance
Continuing to build on the Jeep brand's legendary off-road capability, the all-new 2011 Grand Cherokee adds premium on-road performance to complete the package. The all-new 2011 Jeep Grand Chero ...

Automatic Transmission
The “DRIVE” range can be selected when towing. However, if frequent shifting occurs while in this range, activate the TOW/HAUL feature. Refer to “Automatic Transmission” in “Starting a ...