2004 Jeep Grand Cherokee Owner's Manual - Page 229

STARTING AND OPERATING 229 Always load a trailer with 60% of the cargo weight in the front of the trailer. This places approximately 10% to 15% of the GTW on the tow hitch of your vehicle. This portion of the GTW becomes the tongue weight. Trailer sway control and equalizing hitch are required for tongue weights above 350 lbs (159 kg)., i.e., trailer weights heavier than 3,500 lbs (1 587 kg). Cooling System Tips-Trailer Towing To reduce potential for engine and transmission overheating in high ambient conditions, take the following actions: • City Traffic When stopped, put transmission in N (Neutral) and increase engine idle speed. • Highway Driving Reduce speed. • Air Conditioning Turn off temporarily. To reduce the potential for transmission overheating, turn the "Overdrive" off when pulling any trailer or shift the transmission to Drive position 2 on more severe grades. Move the shift lever to the next lower position to eliminate excessive transmission shifting. This action will also reduce the possibility of transmission overheating and provide better engine braking. 5