GMC Duramax Diesel 2015 Owner's Manual page 44

(4 MPH) displays. A flashing
warning light and a chime also
come on.
Add at least 7.6 L (2 gal) of fluid to
release the vehicle from speed
limitation from a very low or empty
tank. The capacity of the DEF tank
is 20.1 L (5.3 gal).
See Diesel Exhaust Fluid Messages
on page 5-13, Diesel Exhaust Fluid
(DEF) Warning Light on page 5-11,
and Recommended Fluids and
Lubricants on page 11-8.
Exhaust Fluid Quality Poor
Use only exhaust fluid that is GM
approved, or fluid containing the API
certified or ISO 22241 label.
All DEF has an expiration date.
If the system detects poor quality,
or contaminated or diluted DEF, the
DIC message displays:
EXHAUST FLUID QUALITY
POOR - SEE OWNERS
MANUAL NOW 160 KM
(99 MI) UNTIL 105 KM/H
(65 MPH) MAX SPEED.
For emergency vans with RPO
YF2 or emergency pickups with
RPO ANM, EXHAUST FLUID
QUALITY POOR - SEE
OWNERS MANUAL NOW
998 KM (620 MI) UNTIL
105 KM/H (65 MPH) MAX
SPEED.
The displayed mileage will decrease
as driving continues. A warning light
also comes on. Adding fresh DEF to
the system may resolve the
problem, depending on several
factors. If the DIC message persists,
see your dealer or additional DIC
messages may display.
When the mileage countdown is
zero, a DIC message EXHAUST
FLUID QUALITY POOR - SEE
OWNERS MANUAL NOW -
TRANSITIONING TO 105 KM/H
(65 MPH) MAX SPEED displays.
A warning light and a chime also
come on. Vehicle speed will be
reduced to a maximum speed limit
of 105 km/h (65 mph).
Driving and Operating
After the transition to 105 km/h
(65 mph) is complete, the DIC
message displays:
EXHAUST FLUID QUALITY
POOR - SEE OWNERS
MANUAL NOW - SPEED
LIMITED TO 105 KM/H
(65 MPH) 120 KM (75 MI)
UNTIL 89 KM/H (55 MPH) MAX
SPEED .
For emergency vans with RPO
YF2 or emergency pickups with
RPO ANM, EXHAUST FLUID
QUALITY POOR - SEE
OWNERS MANUAL NOW -
SPEED LIMITED TO 105 KM/H
(65 MPH) 933 KM (580 MI)
UNTIL 89 KM/H (55 MPH) MAX
SPEED .
The displayed mileage will decrease
as driving continues. A warning light
and a chime also come on.
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