Jeep Grand Cherokee 2012, Owner'S Manual, Page: 427 / 688

The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
WARNING!
Remember to disconnect the engine block heater
cord before driving. Damage to the 110-115 Volt
electrical cord could cause electrocution.
AUTOMATIC TRANSMISSION
CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
•
Shift into PARK only after the vehicle has come to
a complete stop.
(Continued)
CAUTION! (Continued)
•
Shift into or out of REVERSE only after the
vehicle has come to a complete stop and the engine
is at idle speed.
•
Do not shift between PARK, REVERSE, NEU-
TRAL, or DRIVE when the engine is above idle
speed.
•
Before shifting into any gear, make sure your foot
is firmly pressing the brake pedal.
5
STARTING AND OPERATING 423