2009 Jeep Grand Cherokee Owner's Manual - Page 295

STARTING AND OPERATING 293 OVER TEMP" message may display, and the transmission may downshift out of Overdrive until the transmission cools down. After cool down, the transmission will resume normal operation. In high ambient temperatures with sustained high engine speed and load, an upshift, followed shortly thereafter by a downshift, may occur. The TOW/HAUL light will turn off. This is a normal part of the overheat protection strategy when operating in the TOW/HAUL mode. The transmission will downshift from Overdrive, to the most desirable gear, if the accelerator pedal is fully depressed at vehicle speeds above approximately 35 mph (56 km/h). When To Use TOW/HAUL Mode - If Equipped When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting occurs, press the TOW/HAUL switch. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting. When operating in TOW/HAUL mode, the transmission will shift into direct gear and Overdrive will be enabled under steady cruise conditions. 5 TOW/HAUL Switch The "TOW/HAUL" indicator light will illuminate in the instrument cluster to indicate when the switch has been