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Chevrolet Cruze Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146336) - 2019 - CRC - 6/21/18
Driving and Operating 185
It is normal to hear the DEF system
purge fluid back into the tank after
the vehicle is shut off.
Locating Diesel Exhaust Fluid
DEF can be purchased at your
dealer. It can also be purchased at
authorized vehicle and truck
dealerships. Additionally, some
diesel truck fueling stations or
retailers may have DEF for
purchase. For vehicles with an
active OnStar or connected services
plan, OnStar can help to locate a
DEF retailer. See Customer
Assistance Offices 0 344 for phone
numbers to assist in contacting a
GM dealer. See Recommended
Fluids and Lubricants 0 334 and
Capacities and Specifications 0 339.
Filling the DEF Tank
Caution
Use only DEF that is GM
approved, or fluid containing the
API certified or ISO 22241 label.
The use of other fluids could
(Continued)
Caution (Continued)
damage the system, requiring
costly repairs that will not be
covered by the vehicle warranty.
Caution
Do not mix fuel with DEF, and do
not put DEF in the fuel tank. This
could lead to costly repairs that
might not be covered by the
vehicle warranty.
It is recommended to fill the DEF
tank on level ground and when the
vehicle is not running. When adding
fluid, it is recommended to fill the
DEF tank.
Caution
Do not overfill the DEF tank and
do not allow DEF to contact the
finished surfaces of the vehicle,
(Continued)
Caution (Continued)
as it could damage the vehicle
finish. If DEF is spilled during
filling, wipe any affected surface
with a damp cloth.
Do not top off the DEF tank. If using
a bottle or jug to refill DEF, follow
the instructions on the container
label and use a dedicated fill aid.
In certain cold conditions, it is
possible to find some frozen DEF in
the DEF fill pipe opening. If this
condition prevents the filling of a
DEF tank, place the vehicle in a
warm garage overnight.
For information on how to fill the
DEF tank, see Filling the Tank
(Gasoline) 0 222 or Filling the Tank
(Diesel) 0 224.
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