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180 STARTING AND OPERATING
For system messages and warnings see Ú page 113.
NOTE:
Your vehicle is equipped with a DEF injection system.
You may occasionally hear an audible clicking noise
from under the vehicle at a stop. This is normal opera-
tion.
The DEF pump will run for a period of time after engine
shutdown to purge the DEF system. This is normal
operation and may be audible from the rear of the
vehicle.
Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a very stable
product with a long shelf life. If DEF is kept in
temperatures between 10° and 90°F (-12° and 32°C), it
will last a minimum of one year.
DEF is subject to freezing at the lowest temperatures.
For example, DEF may freeze at temperatures at or below
12°F (-11°C). The system has been designed to operate
in this environment.
NOTE:
When working with DEF, it is important to know that:
Any containers or parts that come into contact with
DEF must be DEF compatible (plastic or stainless
steel). Copper, brass, aluminum, iron or non-stainless
steel should be avoided as they are subject to corro-
sion by DEF.
If DEF is spilled, it should be wiped up completely.
Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument cluster display)
will display the level of DEF remaining in the tank
Ú page 113.
NOTE:
Driving conditions (altitude, vehicle speed, load, etc.) will
affect the amount of DEF that is used in your vehicle.
DEF FILL PROCEDURE
NOTE:
For the correct DEF fluid type see Ú page 397.
1. Remove cap from DEF fill inlet (located in fuel door).
Fuel and Diesel Exhaust Fluid Fill Location
2. Insert DEF fill adapter/nozzle into DEF fill inlet.
NOTE:
The DEF gauge may take up to five seconds to
update after adding a gallon or more of Diesel
Exhaust Fluid (DEF) to the DEF tank. If you have a
fault related to the DEF system, the gauge may not
update to the new level. See an authorized dealer
for service.
The DEF gauge may also not immediately update
after a refill if the temperature of the DEF fluid is
below 12°F (-11°C). The DEF line heater will
possibly warm up the DEF fluid and allow the
gauge to update after a period of run time. Under
very cold conditions, it is possible that the gauge
may not reflect the new fill level for several drives.
Excessive overfilling of the DEF tank can result in
a MIL lamp/fault code and inaccurate level read-
ings.
Refilling With Nozzles
You can fill up at any DEF distributor.
Proceed as follows:
Insert the DEF nozzle in the filler, start refilling and
stop refilling at the first shut-off (the shut-off indi-
cates that the DEF tank is full). Do not proceed
with the refilling, to prevent spillage of DEF.
Extract the nozzle.
1 — Diesel Fuel Filler
2 — Diesel Exhaust Fluid Filler
23_JT_OM_EN_USC_t.book Page 180
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