2015 Jeep Grand Cherokee Owner Manual - Page 461

STARTING AND OPERATING 459 transfer case) to assure the fluids have not been contamiIf the water is swift flowing and rising (as in storm nated. Contaminated fluid (milky, foamy in appearance) run-off), avoid crossing until the water level recedes should be flushed/changed as soon as possible to prevent component damage. and/or the flow rate is reduced. If you must cross flowing water avoid depths in excess of 9 inches (23 cm). Driving In Snow, Mud And Sand The flowing water can erode the streambed, causing your In heavy snow, when pulling a load, or for additional vehicle to sink into deeper water. Determine exit point(s) control at slower speeds, shift the transmission to a low that are downstream of your entry point to allow for gear and shift the transfer case to 4WD LOW if necessary. drifting. Refer to "Four-Wheel Drive Operation" in "Starting and Standing Water Operating" for further information. Do not shift to a Avoid driving in standing water deeper than 20 inches lower gear than necessary to maintain forward motion. (51 cm), and reduce speed appropriately to minimize Over-revving the engine can spin the wheels and traction wave effects. Maximum speed in 20 inches (51 cm) of will be lost. Flowing Water water is less than 5 mph (8 km/h). Maintenance After driving through deep water, inspect your vehicle fluids and lubricants (engine oil, transmission oil, axle, Avoid abrupt downshifts on icy or slippery roads, because engine braking may cause skidding and loss of control. 5