User Manual - Page 274

For 2020 Wrangler.

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272 STARTING AND OPERATING
Driving Through Water
Extreme care should be taken crossing any type
of water. Water crossings should be avoided, if
possible, and only be attempted when neces-
sary in a safe, responsible manner. Only drive
through areas which are designated and
approved. Tread lightly and avoid damage to the
environment. Know your vehicle's abilities and
be able to recover it if something goes wrong.
Never stop or shut a vehicle off when crossing
deep water unless you ingested water into the
engine air intake. If the engine stalls, do not
attempt to restart it. Determine if it has ingested
water first. The key to any crossing is low and
slow. Shift into first gear (manual transmission),
or DRIVE (automatic transmission), with the
transfer case in the 4L (Low) position and
proceed very slowly with a constant slow speed
of {3 to 5 mph (5 to 8 km/h) maximum} and
light throttle. Keep the vehicle moving; do not
try to accelerate through the crossing. After
crossing any water higher than the bottom of
the axle differentials, inspect all of the vehicle
fluids for signs of water ingestion.
Before You Cross Any Type Of Water
As you approach any type of water, you need to
determine if you can cross it safely and respon-
sibly. If necessary, get out and walk through the
water or probe it with a stick. You need to be
sure of its depth, approach angle, current and
bottom condition. Be careful of murky or muddy
waters; check for hidden obstacles. Make sure
you will not be intruding on any wildlife, and you
can recover the vehicle if necessary. The key to
a safe crossing is the water depth, current and
bottom conditions. On soft bottoms, the vehicle
will sink in, effectively increasing the water level
on the vehicle. Be sure to consider this when
determining the depth and the ability to safely
cross.
WARNING!
If the engine stalls or you lose headway or
cannot make it to the top of a steep hill or
grade, never attempt to turn around. To do so
may result in tipping and rolling the vehicle,
which may result in severe injury. Always back
carefully straight down a hill in REVERSE.
Never back down a hill in NEUTRAL using only
the vehicle brakes. Never drive diagonally
across a hill, always drive straight up or down.
CAUTION!
Water ingestion into the axles, transmis-
sion, transfer case, engine or vehicle inte-
rior can occur if you drive too fast or
through too deep of water. Water can cause
permanent damage to engine, driveline or
other vehicle components, and your brakes
will be less effective once wet and/or
muddy.
When driving through water, do not exceed
5 mph (8 km/h). Always check water depth
before entering as a precaution, and check
all fluids afterward. Driving through water
may cause damage that may not be
covered by the New Vehicle Limited
Warranty.
20_JL_OM_EN_USC_t.book Page 272
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