GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
In Brief 31
Fuel (Diesel) For diesel vehicles, do not use
gasoline. See “ Fuel for Diesel
Engines ” in the Duramax diesel
supplement.
E85 or FlexFuel
FlexFuel Possible
Certain models are compatible with
E85 fuel. See E85 or FlexFuel
0 317 .
Engine Oil Life System The engine oil life system calculates
engine oil life based on vehicle use
and, on most vehicles, displays a
DIC message when it is necessary
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change. Resetting the Oil Life System
To reset the engine oil life system:
1. Display OIL LIFE REMAINING
on the DIC.
See Driver Information Center
(DIC) (Base Level Cluster)
0 152 or Driver Information
Center (DIC) (Uplevel and
Denali Cluster) 0 154 . If the
vehicle does not have DIC
buttons, the vehicle must be in
P (Park) to access this display.
2. Press and hold
V on the DIC,
or the trip odometer reset stem
if the vehicle does not have
DIC buttons, for several
seconds. The oil life will
change to 100%.
The oil life system can also be reset
as follows:
1. Display OIL LIFE REMAINING
on the DIC.
See Driver Information Center
(DIC) (Base Level Cluster)
0 152 or Driver Information
Center (DIC) (Uplevel and
Denali Cluster) 0 154 . 2. Fully press the accelerator
pedal slowly three times within
five seconds.
3. If the display changes to 100%,
the system is reset.
See Engine Oil Life System 0 367 .
Driving for Better Fuel
Economy Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.
Avoid fast starts and accelerate
smoothly.
.
Brake gradually and avoid
abrupt stops.
.
Avoid idling the engine for long
periods of time.
.
When road and weather
conditions are appropriate, use
cruise control.
.
Always follow posted speed
limits or drive more slowly when
conditions require.
