2012 Jeep Grand Cherokee Owner Manual - Page 444

442 STARTING AND OPERATING Electronic Range Select (ERS) feature, when the trans- ABS and Traction Control, provides resistance to any mission is sufficiently warm, will demonstrate that the wheel that is slipping to allow additional torque transfer transmission is able to shift into and out of Overdrive. to wheels with traction. • If the vehicle has not been driven for several days, the first few seconds of operation after shifting the transmission into gear may seem sluggish. This is due to the fluid partially draining from the torque converter into the transmission. This condition is normal and will not cause damage to the transmission. The torque converter will refill within five seconds after starting the engine. FOUR-WHEEL DRIVE OPERATION Quadra-Trac Iா Operating Instructions/ Precautions - If Equipped The Quadra-Trac I௡ is a single-speed (HI range only) transfer case, which provides convenient full-time fourwheel drive. No driver interaction is required. The Brake Traction Control (BTC) System, which combines standard NOTE: The Quadra-Trac I௡ system is not appropriate for conditions where 4WD LOW range is recommended. Refer to "Off-Road Driving Tips" in "Starting and Operating" for further information. Quadra-Trac IIா Operating Instructions/ Precautions - If Equipped The Quadra-Trac II௡ transfer case is fully automatic in the normal driving 4WD AUTO mode. The Quadra-Trac II௡ transfer case provides three mode positions: • 4WD HI • NEUTRAL • 4WD LOW This transfer case is fully automatic in the 4WD HI mode.