5. Before starting the engine, be sure to unplug andstore the cord as it was before to keep it awayfrom moving engine parts. If you do not, it couldbe damaged.The length of time the heater should remain pluggedin depends on several factors. Ask a dealer/retailerin the area where you will be parking the vehicle forthe best advice on this.Automatic Transmission OperationThere are several differentpositions for the shift lever.P (Park): This position locks the rear wheels. It is thebest position to use when you start the engine becausethe vehicle cannot move easily.{ CAUTION:It is dangerous to get out of the vehicle if the shiftlever is not fully in P (Park) with the parking brakefirmly set. The vehicle can roll.Do not leave the vehicle when the engine isrunning unless you have to. If you have left theengine running, the vehicle can move suddenly.You or others could be injured. To be sure thevehicle will not move, even when you are on fairlylevel ground, always set the parking brake andmove the shift lever to P (Park). See Shifting IntoPark on page 2-34. If you are pulling a trailer,see Towing a Trailer (Vehicles Without HeavyDuty Cooling) on page 4-31 or Towing a Trailer(Vehicles With Heavy Duty Cooling) on page 4-32.Make sure the shift lever is fully in P (Park)before starting the engine. The vehicle has anautomatic transmission shift lock control system.You must fully apply your regular brakes first andthen press the shift lever button before you canshift from P (Park) when the vehicle is running.2-30