Jeep Wrangler2018 Owner's Manual page 372

370 STARTING AND OPERATING
CAUTION!
Muddy waters can reduce the cooling system effective-
ness by depositing debris onto the radiator.
Crossing Ditches, Streams, Shallow Rivers Or Other
Flowing Water
Flowing water can be extremely dangerous. Never attempt to
cross a fast running stream or river even in shallow water.
Fast moving water can easily push your vehicle downstream,
sweeping it out of control. Even in very shallow water, a high
current can still wash the dirt out from around your tires
putting you and your vehicle in jeopardy. There is still a high
risk of personal injury and vehicle damage with slower water
currents in depths greater than the vehicle's running ground
clearance. You should never attempt to cross flowing water
which is deeper than the vehicle's running ground clearance.
Even the slowest current can push the heaviest vehicle
downstream and out of control if the water is deep enough to
push on the large surface area of the vehicle's body. Before
you proceed, determine the speed of the current, the water's
depth, approach angle, bottom condition and if there are any
obstacles. Then cross at an angle heading slightly upstream
using the low and slow technique.
WARNING!
Never drive through fast moving deep water. It can
push your vehicle downstream, sweeping it out of
control. This could put you and your passengers at risk
of injury or drowning.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you can
get any problems taken care of right away and have your
vehicle ready when you need it.
• Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.