2018 GMC SIERRA DENALI oil level

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
32 In Brief
Fuel (Gasoline - L86 6.2L
Engine) Premium Recommended Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with an octane rating as
low as 87 may be used, but it will
reduce performance and fuel
economy. See Fuel 0 299 .
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
0 300 .
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)
(Uplevel and Denali Cluster)
0 160 or Driver Information
Center (DIC) (Base Level
Cluster) 0 158 . 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)
(Uplevel and Denali Cluster)
0 160 or Driver Information
Center (DIC) (Base Level
Cluster) 0 158 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
128 Instruments and Controls
Instruments and
Controls Controls Steering Wheel Adjustment . . . 129
Steering Wheel Controls . . . . . . 129
Heated Steering Wheel . . . . . . . 130
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Windshield Wiper/Washer . . . . 130
Compass . . . . . . . . . . . . . . . . . . . . . 131
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 132
Power Outlets . . . . . . . . . . . . . . . . 133
Wireless Charging . . . . . . . . . . . . 134
Warning Lights, Gauges, and
Indicators Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 137
Instrument Cluster . . . . . . . . . . . . 138
Speedometer . . . . . . . . . . . . . . . . . 142
Odometer . . . . . . . . . . . . . . . . . . . . . 142
Trip Odometer . . . . . . . . . . . . . . . . 142
Tachometer . . . . . . . . . . . . . . . . . . . 142
Fuel Gauge . . . . . . . . . . . . . . . . . . . 142
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 143
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 144 Transmission Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 145
Voltmeter Gauge . . . . . . . . . . . . . 145
Seat Belt Reminders . . . . . . . . . 146
Airbag Readiness Light . . . . . . . 147
Airbag On-Off Light . . . . . . . . . . . 147
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 149
Charging System Light . . . . . . . 149
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 150
Brake System Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . 152
Antilock Brake System (ABS)
Warning Light . . . . . . . . . . . . . . . 152
Four-Wheel-Drive Light . . . . . . . 153
Tow/Haul Mode Light . . . . . . . . . 153
Hill Descent Control Light . . . . 153
Lane Departure Warning
(LDW) Light (2500/3500) . . . . 153
Lane Keep Assist (LKA) Light
(1500 Series) . . . . . . . . . . . . . . . 154
Vehicle Ahead Indicator . . . . . . 154
Traction Off Light . . . . . . . . . . . . . 154
StabiliTrak OFF Light . . . . . . . . . 154
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 155
Engine Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 155
Tire Pressure Light . . . . . . . . . . . 156 Engine Oil Pressure Light
(Denali Only) . . . . . . . . . . . . . . . . 156
Low Fuel Warning Light . . . . . . 156
Security Light . . . . . . . . . . . . . . . . . 157
High-Beam On Light . . . . . . . . . . 157
Front Fog Lamp Light . . . . . . . . . 157
Lamps On Reminder . . . . . . . . . 157
Cruise Control Light . . . . . . . . . . 158
Door Ajar Light . . . . . . . . . . . . . . . 158
Information Displays Driver Information Center (DIC)
(Base Level Cluster) . . . . . . . . 158
Driver Information Center (DIC)
(Uplevel and Denali
Cluster) . . . . . . . . . . . . . . . . . . . . . 160
Vehicle Messages Vehicle Messages . . . . . . . . . . . . 164
Engine Power Messages . . . . . 164
Vehicle Speed Messages . . . . . 164
Vehicle Personalization Vehicle Personalization . . . . . . . 165
Universal Remote System Universal Remote System . . . . 172
Universal Remote System
Programming . . . . . . . . . . . . . . . 172
Universal Remote System
Operation . . . . . . . . . . . . . . . . . . . 174

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Instruments and Controls 143When the ignition is on, the fuel
gauge indicates about how much
fuel is left in the tank.
There is an arrow near the fuel
gauge pointing to the side of the
vehicle the fuel door is on.
When the indicator nears empty, the
low fuel light comes on. There still is
a little fuel left, but the vehicle
should be refueled soon.
Here are four things that some
owners ask about. None of these
show a problem with the fuel gauge:
.
At the service station, the fuel
pump shuts off before the gauge
reads full.
.
It takes a little more or less fuel
to fill up than the gauge
indicated. For example, the
gauge may have indicated the
tank was half full, but it actually
took a little more or less than
half the tank's capacity to fill
the tank.
.
The gauge moves a little while
turning a corner or speeding up. .
The gauge takes a few seconds
to stabilize after the ignition is
turned on, and goes back to
empty when the ignition is
turned off.
Engine Oil Pressure
Gauge
Metric, Standard Theme Shown English, Standard Theme Shown
The engine oil pressure gauge
shows the engine oil pressure
in kPa (kilopascals) or psi (pounds
per square inch) when the engine is
running.
Oil pressure can vary with engine
speed, outside temperature, coolant
temperature, and oil viscosity.
A reading outside the normal
operating range can be caused by a
dangerously low oil level or some
other problem causing low oil
pressure. Check the vehicle's oil as
soon as possible. A DIC message
may display. See Engine Oil 0 350 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
144 Instruments and Controls CautionLack 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.
If the vehicle has a diesel engine,
see the Duramax diesel
supplement. Engine Coolant
Temperature Gauge
Metric, Standard Theme Shown English, Standard Theme Shown
This gauge shows the engine
coolant temperature. Under normal
driving conditions the gauge will
read approximately 100 °C (210 °F)
or less. If the gauge pointer is near
125 °C (260 °F), the engine is
too hot.
It means that the engine coolant has
overheated. If the vehicle has been
operating under normal driving
conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
156 Instruments and Controls
Tire Pressure Light For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. Stop as soon as possible,
and inflate the tires to the pressure
value shown on the Tire and
Loading Information label. See Tire
Pressure 0 397 . When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See Tire Pressure Monitor
Operation 0 400 .
Engine Oil Pressure Light
(Denali Only) CautionLack 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. This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
158 Instruments and Controls
Cruise Control Light For vehicles with cruise control, the
cruise control light is white when the
cruise control is on and ready, and
turns green when the cruise control
is set and active.
The light turns off when the cruise
control is turned off. See Cruise
Control 0 285 . Door Ajar Light This light comes on when a door is
open or not securely latched. Before
driving, check that all doors are
properly closed.
Information Displays Driver Information Center
(DIC) (Base Level Cluster) The DIC displays are shown in the
center of the instrument cluster. The
displays show the status of many
vehicle systems. The trip odometer
reset stem in the instrument cluster
is used to access the DIC menu
items.
DIC Menu Items Turn the trip odometer reset stem to
scroll through the following menu
items:
.
Digital Speedometer
.
Trip
.
Fuel Range
.
Average Fuel Economy
.
Tire Pressure
.
Remaining Oil Life
.
Transmission Fluid Temperature
.
Trailer Brake
.
Hourmeter

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
258 Driving and Operating The switch stays in this position
when the engine is running. The
transmission is also unlocked in this
position.
If the key is left in the ACC/
ACCESSORY or ON/RUN position
with the engine off, the battery could
be drained. The vehicle may not
start if the battery is allowed to drain
for an extended period of time.
3 (START) : This is the position that
starts the engine. When the engine
starts, release the key. The ignition
switch returns to ON/RUN for
driving.
A warning tone will sound when the
driver door is opened and the
ignition is in ACC/ACCESSORY or
LOCK/OFF, and the key is in the
ignition.
Starting the Engine If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
For an eAssist vehicle, see the
Silverado/Sierra eAssist
supplement. CautionIf you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See Add-On Electrical Equipment
0 336 .
CautionIf the steering wheel is turned
until it reaches the end of its
travel, and is held in that position
while starting the vehicle, damage
may occur to the power steering
system and there may be loss of
power steering assist.
Move the shift lever to P (Park) or
N (Neutral). To restart the engine
when the vehicle is already moving,
use N (Neutral) only. CautionDo not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Starting Procedure 1. Turn the ignition key to START.
When the engine starts, let go
of the key. The idle speed will
go down as the engine gets
warm. Do not race the engine
immediately after starting it.
Operate the engine and
transmission gently to allow the
oil to warm up and lubricate all
moving parts.
When the low fuel warning light
is on and the FUEL LEVEL
LOW message is displayed in
the Driver Information Center
(DIC), hold the ignition switch
in the START position to
continue engine cranking.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
306 Driving and Operating Driving on Grades Reduce speed and shift to a lower
gear before starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might get hot and no longer
work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if
the transmission shifts too often
under heavy loads and/or hilly
conditions.
The Tow/Haul Mode may be used if
the transmission shifts too often.
See Tow/Haul Mode 0 271 .
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at
a lower temperature than at normal
altitudes. If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle may show signs similar to
engine overheating. To avoid this,
let the engine run while parked,
preferably on level ground, with the
transmission in P (Park) for a few minutes before turning the engine
off. If the overheat warning comes
on, see Engine Overheating 0 363 .
Parking on Hills
{ WarningParking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do
not shift into P (Park) yet. Turn
the wheels into the curb if
facing downhill or into traffic if
facing uphill.
2. Have someone place chocks
under the trailer wheels. 3. When the wheel chocks are in
place, release the regular
brakes until the chocks absorb
the load.
4. Reapply the brake pedal. Then
apply the parking brake and
shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill 1. Apply and hold the brake
pedal.
.
Start the engine.
.
Shift into a gear.
.
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is
clear of the chocks.
4. Stop and have someone pick
up and store the chocks.