Black plate (6,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
5-6
Instruments and Controls
English Van Models
Notice:
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine
oil low can also damage the
engine. The repairs would not be
covered by the vehicle warranty.
Check the oil level as soon as
possible. Add oil if required, but
if the oil level is within the
operating range and the oil
pressure is still low, have the
vehicle serviced. Always follow
the maintenance schedule for
changing engine oil.
The engine oil pressure gauge
reads in kPa (kilopascals) or psi
(pounds per square inch) when the
engine is running. Oil pressure may
vary with engine speed, outside
temperature, and oil viscosity.
If readings are outside the normal
operating range, the low oil
pressure message may display on
the Driver Information Center (DIC),
or for vehicles without DIC the oil
pressure light will come on. If the oil
pressure is outside the normal
operating range of 0-548 kPa
(0-80 psi), check the oil level
immediately. DO NOT operate the
engine with the oil pressure warning
light on or an ENGINE OIL LOW
ADD OIL message displayed.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions
are at acceptable levels, helping to
maintain a clean environment. The
malfunction indicator lamp comes
on when the vehicle is placed in
ON/RUN as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer. See
“
Ignition Positions
”
in the owner
manual.
If the malfunction indicator lamp
comes on while the engine is
running, this indicates that there is
an OBD II problem and diagnosis
and service might be required.
This light may also come on when
the Diesel Exhaust Fluid (DEF)
management system is not working.
See
Diesel Exhaust Fluid on
page 9
‑
12
.
