On star GMC SIERRA 2020 Workshop Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 145
Engine Coolant
Temperature Warning
Light
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0351. The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
See
Engine Overheating 0351.
Driver Mode Control Light
This light comes on when Sport
Mode is selected (1500 Series).
This light comes on when Snow/Ice
Mode is selected.
This light comes on when Terrain
Mode is selected (1500 Series).
This light comes on when Off-Road
Mode is selected.
Tire Pressure Light

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
146 Instruments and Controls
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. SeeTire
Pressure 0387.
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 0390.Engine Oil Pressure Light
(Uplevel Cluster)
Caution
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.
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.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 147
Security Light
The security 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
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 39.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0167.
IntelliBeam Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled. See Exterior Lamp
Controls 0165.
Front Fog Lamp Light
For vehicles with fog lamps, this
light comes on when the fog lamps
are on. The light goes out when the fog
lamps are turned off. See
Fog
Lamps 0170.
Lamps On Reminder
This light comes on when the
exterior lamps are in use, except
when only the Daytime Running
Lamps (DRL) are active. See
Exterior Lamp Controls 0165.
Cruise Control Light

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 151
economy that the vehicle has right
now, and will change as driving
conditions change.
Press the thumbwheel while this
display is active to reset the trip
odometer and the average fuel
economy.
Fuel Range :Shows the
approximate distance the vehicle
can be driven without refueling.
LOW will be displayed when the
vehicle is low on fuel. The fuel
range estimate is based on an
average of the vehicle's fuel
economy over recent driving history
and the amount of fuel remaining in
the fuel tank.
Timer : This display can be used as
a timer. To start the timer, press the
thumbwheel while this display is
active. The display will show the
amount of time that has passed
since the timer was last reset. To
stop the timer, press the
thumbwheel briefly while this display
is active and the timer is running.
Press the thumbwheel while this
display is active to reset the timer. Oil Life :
Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
The oil should be changed as soon
as possible. See Engine Oil0339.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See Maintenance
Schedule 0442.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display at any time other than when
the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, press the
thumbwheel while the Oil Life
display is active. See Engine Oil
Life System 0341.
Tire Pressure : Shows the
approximate pressures of all four
tires. Tire pressure is displayed in either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber. See
Tire Pressure
Monitor System 0389 and
Tire Pressure Monitor Operation
0 390.
Air Filter Life : Shows an estimate
of the engine air filter ’s remaining
useful life and the state of the
system. Engine Air Filter Life 95%
means 95% of the current air filter
life remains. Messages will display
based on the engine air filter life and
the state of the system. When the
REPLACE AT NEXT OIL CHANGE
message displays, the engine air
filter should be replaced at the time
of the next oil change. When the
REPLACE SOON message
displays, the engine air filter should
be replaced at the earliest
convenience.
The Air Filter Life display must be
reset after the engine air filter
replacement. To reset, see Engine
Air Filter Life System 0343.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 153
instrument panel. The information
appears as an image focused out
toward the front of the vehicle.
Caution
If you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The HUD information can be
displayed in various languages. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through the radio, and the units of
measurement is changed through
the instrument cluster. See
“Settings” in the infotainment
manual and “Options”under
Instrument Cluster 0127.
HUD Display on the Windshield
Depending on how the vehicle is
equipped, the HUD may display
some of the following vehicle
information and vehicle messages
or alerts:
. Speed
. Audio
. Phone
. Navigation
. Driver Assistance Features
. Vehicle Messages Some vehicle messages or alerts
displayed in the HUD may be
cleared by using the steering wheel
controls.
The HUD control is to the left of the
steering wheel.
To adjust the HUD image:
1. Adjust the driver seat.
2. Start the engine.
3. Use the following settings to adjust the HUD.
$:Press or pull to center the
HUD image. The HUD image can
only be adjusted up and down, not
side to side.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 155
Driver assistance graphics show
your vehicle, vehicle ahead, gap
setting, and lane status information.
In addition to driver assistance
graphics, pedestrian advisory and
trailer sway indicators will be
displayed.
English Shown, Metric Similar
Navigation/Active OnStar View :
This displays the speed view along
with indicators for vehicle ahead,
Lane Departure Warning/Lane Keep
Assist, trailer sway, and pedestrian
advisory. Turn-by-Turn navigation
information is shown during active
route. The compass heading is
displayed when navigation routing is
not active. Navigation Turn-by-Turn Alerts
shown in the instrument cluster may
also be displayed in any HUD view.
English Shown, Metric Similar
Off Road View : This displays the
speed view along with indicators for
vehicle ahead, Lane Departure
Warning/Lane Keep Assist, trailer
sway, four-wheel drive status, and
pedestrian advisory. Off-road
information such as pitch angle,
steering angle, and rolling angle is
also shown.
Care of the HUD
Clean the inside of the windshield to
remove any dirt or film that could
reduce the sharpness or clarity of
the HUD image. Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe
the lens gently, then dry it.
HUD Troubleshooting
Check that:
.
Nothing is covering the
HUD lens.
. The HUD brightness setting is
not too dim or too bright.
. The HUD is adjusted to the
proper height.
. Polarized sunglasses are
not worn.
. The windshield and HUD lens
are clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. See Windshield
Replacement 0365.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
156 Instruments and Controls
Vehicle Messages
Messages displayed on the Driver
Information Center (DIC) indicate
the status of the vehicle or some
action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing the thumbwheel. The
messages that require immediate
action cannot be cleared until that
action is performed.
All messages should be taken
seriously; clearing the message
does not correct the problem.
If a SERVICE message appears,
see your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
.Service Messages
. Fluid Levels .
Vehicle Security
. Brakes
. Steering
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's propulsion power is
reduced. A reduction in propulsion
power can affect the vehicle's ability
to accelerate. If this message is on,
but there is no observed reduction in performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, or displays
repeatedly, the vehicle should be
taken to your dealer for service as
soon as possible.
Under certain operating conditions,
propulsion will be disabled. Try
restarting after the vehicle has been
off for 30 seconds.
Vehicle Speed Messages
SPEED LIMITED TO XXX KM/
H (MPH)
This message shows that the
vehicle speed has been limited to
the speed displayed. The limited
speed is a protection for various
propulsion and vehicle systems,
such as lubrication, thermal, brakes,
suspension, Teen Driver if
equipped, or tires.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
158 Instruments and Controls
Touch Beeps or Safety Alert Seat.
Forward Collision System
This setting controls the vehicle
response when detecting a vehicle
ahead of you. The Off setting
disables all FCA and AEB functions.
With the Alert and Brake setting,
both FCA and AEB are available.
The Alert setting disables AEB. See
Automatic Emergency Braking
(AEB)0270.
Touch Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature may help avoid or
reduce the harm caused by
front-end crashes with nearby
pedestrians. See Front Pedestrian
Braking (FPB) System (1500 Series)
0 272.
Touch Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This setting determines if an alert
will appear when Adaptive Cruise
Control brings the vehicle to a
complete stop and the vehicle ahead of you starts moving again.
See
Adaptive Cruise Control (1500
Series) 0245.
Touch Off or On.
Lane Change Alert
This allows the feature to be turned
on or off. See Lane Change Alert
(LCA) 0274.
Touch Off or On.
Park Assist
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing 0257.
Select Off, On, or On with Towbar.
Rear Camera Park Assist Symbols
This setting enables the Rear
Camera Park Assist Symbols. See
Assistance Systems for Parking or
Backing 0257.
Touch Off or On. Rear Cross Traffic Alert
This allows the Rear Cross Traffic
Alert feature to be turned on or off.
See
Assistance Systems for Parking
or Backing 0257.
Touch Off or On.
Comfort and Convenience
Touch and the following may
display:
. Chime Volume
. Reverse Tilt Mirror
. Remote Mirror Folding
Chime Volume
This determines the chime volume
level.
Touch the controls on the
infotainment display to adjust the
volume.
Reverse Tilt Mirror
This allows the feature to be turned
on or off. See Reverse Tilt Mirrors
0 45.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
Instruments and Controls 159
Touch Off, On - Driver and
Passenger, On - Driver, or On -
Passenger.
Remote Mirror Folding
When on, the outside mirrors will
remotely fold or unfold when the
Remote Keyless Entry (RKE)
transmitter
QorKbutton is
pressed and held. See Folding
Mirrors 043.
Touch Off or On.
Lighting
Touch and the following may
display:
. Vehicle Locator Lights
. Exit Lighting
Vehicle Locator Lights
This setting flashes the vehicle’ s
headlamps when
Kis pressed on
the Remote Keyless Entry (RKE)
transmitter.
Touch Off or On. Exit Lighting
This setting specifies how long the
headlamps stay on after the vehicle
is turned off and exited.
Touch Off, 30 Seconds, 60 Seconds,
or 120 Seconds.
Power Door Locks
Touch and the following may
display:
.
Open Door Anti Lock Out
. Auto Door Unlock
. Delayed Door Lock
Open Door Anti Lock Out
This setting prevents the driver door
from locking when the door is open.
If this setting is on, the Delayed
Door Lock menu will not be
available.
Touch Off or On.
Auto Door Unlock
This setting allows selection of
which doors will automatically
unlock when the vehicle is shifted
into P (Park). Touch Off, All Doors, or Driver Door.
Delayed Door Lock
This setting delays the locking of
the vehicle’
s doors.
Touch Off or On.
Remote Lock, Unlock, Start
Touch and the following may
display:
. Remote Unlock Light Feedback
. Remote Lock Feedback
. Remote Door Unlock
. Remote Start Auto Cool Seats
. Remote Start Auto Heat Seats
. Remote Window Operation
. Passive Door Unlock
. Passive Door Lock
. Remote Left in Vehicle Alert
Remote Unlock Light Feedback
This setting flashes the exterior
lamps when the vehicle is unlocked
with the RKE transmitter.
Touch Off or Flash Lights.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13337776) - 2020 - CRC - 4/4/19
160 Instruments and Controls
Remote Lock Feedback
This setting specifies how the
vehicle responds when the vehicle
is locked with the RKE transmitter.
Touch Off, Lights and Horn, Lights
Only, or Horn Only.
Remote Door Unlock
This setting specifies whether all
doors, or just the driver door, unlock
when pressing
Kon the RKE
transmitter.
Touch All Doors or Driver Door.
Remote Start Auto Cool Seats
If equipped and turned on, this
feature will turn on the ventilated
seats when using remote start on
warm days. See Heated and
Ventilated Front Seats 061 and
Remote Vehicle Start 024.
Touch Off or On.
Remote Start Auto Heat Seats
If equipped and turned on, this
feature will turn on the heated seats
when using remote start on cold days. See
Heated and
Ventilated Front Seats 061 and
Remote Vehicle Start 024.
If equipped with Auto Heated
Steering Wheel, this feature will turn
on when the Remote Start Auto
Heated Seats turn on.
Touch Off or On.
Remote Window Operation
If equipped, this feature enables
remote operation of the windows
with the RKE transmitter. See
Remote Keyless Entry (RKE)
System Operation (Key Access)
0 13 or
Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 15.
Touch Off or On.
Passive Door Unlock
This allows the selection of what
doors will unlock when using the
button on the driver door to unlock
the vehicle.
Touch Off, All Doors, or Driver
Door Only. Passive Door Lock
This allows passive locking to be
turned on or off and selects
feedback. See
Remote Keyless
Entry (RKE) System Operation (Key
Access) 013 or
Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 15.
Touch Off, On with Horn
Chirp, or On.
Remote Left in Vehicle Alert
This feature sounds an alert when
the RKE transmitter is left in the
vehicle. This menu also enables
Remote No Longer In Vehicle Alert.
Touch Off or On.
Seating Position
Touch and the following may
display:
. Seat Entry Memory
. Seat Exit Memory