2010 Jeep Grand Cherokee Owner's Manual - Page 263

262 STARTING AND OPERATING Traction Downhill • Completely inspect the underbody of your vehicle. Shift the transmission into a low gear, and the transfer Check the tires, body structure, steering, suspension, case into 4WD LOW range. Let the vehicle go slowly and exhaust system for damage. down the hill with all four wheels turning against engine • Check threaded fasteners for looseness, particularly on compression drag. This will permit you to control the the chassis, drivetrain components, steering, and susvehicle speed and direction. pension. Retighten them, if required, and torque to the values specified in the Service Manual. When descending mountains or hills, repeated braking can cause brake fade with loss of braking control. Avoid • Check for accumulations of plants or brush. These repeated heavy braking by downshifting the transmisthings could be a fire hazard. They might hide damage sion whenever possible. to fuel lines, brake hoses, axle pinion seals, and After Driving Off-Road propeller shafts. Off-road operation puts more stress on your vehicle than • After extended operation in mud, sand, water, or does most on-road driving. After going off-road, it is similar dirty conditions, have brake rotors, wheels, always a good idea to check for damage. That way you brake linings, and axle yokes inspected and cleaned as can get any problems taken care of right away and have soon as possible. your vehicle ready when you need it.