2017 GMC SIERRA DENALI rear view mirror

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Climate Controls 249
@ : Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle. It can also be
used to help reduce outside air and
odors that enter the vehicle. The air
conditioning compressor also comes
on when this mode is activated.
Rear Window Defogger The rear window defogger uses a
warming grid to remove fog from the
rear window.
K : Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The rear window defogger only
works when the ignition is in ON/
RUN. The defogger turns off if the
ignition is turned to ACC/
ACCESSORY or LOCK/OFF. CautionUsing a razor blade or sharp
object to clear the inside rear
window can damage the rear
window defogger. Repairs would
not be covered by the vehicle
warranty. Do not clear the inside
rear window with sharp objects.
Heated Mirror : If equipped with
heated outside rearview mirrors,
press
K to heat the mirrors. See
Heated Mirrors 0 48 .
Sensors The solar sensor, located in the
defrost grille in the middle of the
instrument panel, monitors the solar
heat. Do not cover the solar sensor
or the system will not work properly.
There is also an exterior
temperature sensor behind the front
grille. This sensor reads the outside
air temperature and helps maintain
the temperature inside the vehicle.
Any cover on the front of the vehicle
including a snow plow, could cause
a false reading in the displayed
temperature.
Some vehicles may have the
exterior temperature sensor in the
passenger side mirror instead of the
front grille area.
The climate control system uses the
information from these sensors to
maintain comfort settings by
adjusting the outlet temperature, fan
speed, and the air delivery mode.
The system may also supply cooler
air to the side of the vehicle facing
the sun. The recirculation mode will
also be used as needed to maintain
cool outlet temperatures.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
310 Driving and Operating Tailgating Alert
The vehicle ahead indicator will
display amber when you are
following a vehicle ahead much too
closely.
Selecting the Alert Timing
The FCA control is on the steering
wheel. Press
[ to set the FCA
timing to Far, Medium, Near, or Off. The first button press shows the
current setting on the DIC.
Additional button presses will
change this setting. The chosen
setting will remain until it is changed
and will affect the timing of both the
Collision Alert and the Tailgating
Alert features. The timing of both
alerts will vary based on vehicle
speed. The faster the vehicle speed,
the farther away the alert will occur.
Consider traffic and weather
conditions when selecting the alert
timing. The range of selectable alert
timing may not be appropriate for all
drivers and driving conditions.
Unnecessary Alerts FCA may provide unnecessary
alerts for turning vehicles, vehicles
in other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to
operate properly, this may correct
the issue: .
Clean the outside of the
windshield in front of the
rearview mirror.
.
Clean the entire front of the
vehicle.
.
Clean the headlamps.
Forward Automatic
Braking (FAB) If the vehicle has Forward Collision
Alert (FCA), it also has FAB, which
includes Intelligent Brake
Assist (IBA). When the system
detects a vehicle ahead in your path
that is traveling in the same
direction that you may be about to
crash into, it can provide a boost to
braking or automatically brake the
vehicle. This can help avoid or
lessen the severity of crashes when
driving in a forward gear. Depending
on the situation, the vehicle may
automatically brake moderately or
hard. This forward automatic
braking can only occur if a vehicle is
detected. This is shown by the FCA
vehicle ahead indicator being lit.
See Forward Collision Alert (FCA)
System 0 308 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
312 Driving and Operating Warning (Continued)flow of traffic. If this occurs, take
your foot off the brake pedal and
then apply the brakes as needed.
FAB and IBA can be disabled
through vehicle personalization. See
“ Collision/Detection Systems ” under
Vehicle Personalization 0 167 .
{ WarningUsing FAB or IBA while towing a
trailer could cause you to lose
control of the vehicle and crash.
Turn the system to Alert or Off
when towing a trailer.
Lane Departure Warning
(LDW) (2500/3500 Series) If equipped, LDW may help avoid
crashes due to unintentional lane
departures. It may provide an alert if
the vehicle is crossing a lane
marking without using a turn signal
in that direction. LDW uses a camera sensor to detect the lane
markings at speeds of 56 km/h
(35 mph) or greater.
{ WarningThe LDW system does not steer
the vehicle. The LDW system
may not:
.
Provide enough time to
avoid a crash.
.
Detect lane markings under
poor weather or visibility
conditions. This can occur if
the windshield or
headlamps are blocked by
dirt, snow, or ice; if they are
not in proper condition; or if
the sun shines directly into
the camera.
.
Detect road edges.
.
Detect lanes on winding or
hilly roads.
If LDW only detects lane
markings on one side of the road,
it will only warn you when
(Continued) Warning (Continued) departing the lane on the side
where it has detected a lane
marking. Always keep your
attention on the road and
maintain proper vehicle position
within the lane, or vehicle
damage, injury, or death could
occur. Always keep the
windshield, headlamps, and
camera sensors clean and in
good repair. Do not use LDW in
bad weather conditions.
How the System Works The LDW camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LDW on and off, press
@ on
the center stack. The control
indicator will light when LDW is on.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
314 Driving and Operating Warning (Continued).
Detect lanes on winding or
hilly roads.
If LKA only detects lane markings
on one side of the road, it will
only assist or provide an LDW
alert when approaching the lane
on the side where it has detected
a lane marking. Even with LKA
and LDW, you must steer the
vehicle. Always keep your
attention on the road and
maintain proper vehicle position
within the lane, or vehicle
damage, injury, or death could
occur. Always keep the
windshield, headlamps, and
camera sensors clean and in
good repair. Do not use LKA in
bad weather conditions. { WarningUsing LKA while towing a trailer
or on slippery roads could cause
loss of control of the vehicle and
a crash. Turn the system off.
How the System Works The LKA camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LKA on and off, press
Aon the center stack.
When on,
A is green if LKA is
available to assist and provide LDW
alerts. It may assist by gently
turning the steering wheel and
display
A as amber if the vehicle
approaches a detected lane marking
without using a turn signal in that
direction. It may also provide an
LDW alert by flashing
A amber
as the lane marking is crossed.
Additionally, there may be three
beeps, or the driver seat may pulse three times, on the right or left,
depending on the lane departure
direction.
Take Steering
The LKA system does not
continuously steer the vehicle.
If LKA does not detect active driver
steering, an alert, chime, or DIC
message may be provided. Move
the steering wheel to dismiss.
When the System Does Not
Seem to Work Properly The system performance may be
affected by:
.
Close vehicles ahead.
.
Sudden lighting changes, such
as when driving through tunnels.
.
Banked roads.
.
Roads with poor lane markings,
such as two-lane roads.
If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Driving and Operating 315A camera blocked message may
display if the camera is blocked.
Cleaning the outside of the
windshield behind the rearview
mirror may correct the issue. Some
driver assistance systems may have
reduced performance or not work at
all. An LKA or LDW unavailable
message may display if the systems
are temporarily unavailable. This
message could be due to a blocked
camera. The LKA system does not
need service. Clean the outside of
the windshield behind the rearview
mirror.
LKA assistance and/or LDW alerts
may occur due to tar marks,
shadows, cracks in the road,
temporary or construction lane
markings, or other road
imperfections. This is normal system
operation; the vehicle does not need
service. Turn LKA off if these
conditions continue. Fuel For diesel engine vehicles, see
“ Fuel for Diesel Engines ” in the
Duramax diesel supplement.
GM recommends the use of TOP
TIER Detergent Gasoline to keep
the engine cleaner and reduce
engine deposits. See
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
If the vehicle has a yellow sticker on
the fuel door, E85 or FlexFuel can
be used. See E85 or FlexFuel
0 317 . Except the 6.2L engine, use regular
unleaded gasoline meeting ASTM
specification D4814 with a posted
octane rating of 87 or higher. Do not
use gasoline with a posted octane
rating of less than 87, as this may
cause engine knock and will lower
fuel economy.
For the 6.2L engine, premium
unleaded gasoline meeting ASTM
specification D4814 with a posted
octane rating of 93 is highly
recommended for best performance
and fuel economy. Unleaded
gasoline with an octane rated as low
as 87 can be used. Using unleaded
gasoline rated below 93 octane,
however, will lead to reduced
acceleration and fuel economy.
If knocking occurs, use a gasoline
rated at 93 octane as soon as
possible, otherwise, the engine
could be damaged. If heavy
knocking is heard when using
gasoline with a 93 octane rating, the
engine needs service.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Vehicle Care 399
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Number Usage
1 Accessory power
outlet 2 Number Usage
2 SEO/Retained
accessory power
3 Universal garage door
opener/Interior
rearview mirror
6 Body control module 3
7 Body control module 5
8 Driver window switch/
Mirror switch
9 –
10 Accessory power
outlet/Retained
accessory power
11 Accessory power
outlet battery
12 Accessory power
outlet 1/Cigarette
lighter
13 Discrete logic ignition
switch
14 Switch backlighting
17 Body control module 1
19 –

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Index 499Antilock Brake System
(ABS) (cont'd)
Warning Light . . . . . . . . . . . . . . . . . 146
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 444
Interior . . . . . . . . . . . . . . . . . . . . . . . . 449
Apple CarPlay and
Android Auto . . . . . . . . . . . . . . . . . . 237
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 478
Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . . . 308
Assistance Systems for
Parking and Backing . . . . . . . . . . 306
Audio
Bluetooth . . . . . . . . . . . . . . . . . . . . . 215
Theft-Deterrent Feature . . . . . . . 189
Audio Players
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 49
Door Locks . . . . . . . . . . . . . . . . . . . . . 40
Forward Braking . . . . . . . . . . . . . . 310
Headlamp System . . . . . . . . . . . . 181
Transmission . . . . . . . . . . . . . . . . . 283
Transmission Fluid . . . . . . 368, 371
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 286 Automatic Transmission (cont'd)
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 387
Auxiliary
Roof Mounted Lamp . . . . . . . . . . 183
Auxiliary Jack . . . . . . . . . . . . . . . . . . . 214
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 384
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 385
B Battery
Load Management . . . . . . . . . . . . 186
Power Protection . . . . . . . . . . . . . 187
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 157
Battery - North America . . . . 383, 435
Blade Replacement, Wiper . . . . . 388
Blind Spot Mirrors . . . . . . . . . . . . . . . 49
Bluetooth
Overview . . . . . . . . 222, 224,
228, 233
Bluetooth Audio . . . . . . . . . . . . . . . . 215
Brake
Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 273
System Warning Light . . . . . . . . 145
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Antilock . . . . . . . . . . . . . . . . . . . . . . . 297
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 298 Brakes (cont'd)
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Parking . . . . . . . . . . . . . . . . . . . . . . . 297
System Messages . . . . . . . . . . . . 158
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 254
Automatic Forward . . . . . . . . . . . 310
Break-In, New Vehicle . . . . . . . . . . 273
Bulb Replacement . . . . . . . . . . . . . . 392
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 391
Halogen Bulbs . . . . . . . . . . . . . . . . 389
Headlamp Aiming . . . . . . . . . . . . . 389
Headlamps . . . . . . . . . . . . . . . . . . . 389
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 390
Taillamps, Turn Signal,
Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 390
Buying New Tires . . . . . . . . . . . . . . . 418
C Calibration . . . . . . . . . . . . . . . . . . . . . . 126
California
Fuel Requirements . . . . . . . . . . . 316

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Index 503General Information
Service and Maintenance . . . . . 454
Towing . . . . . . . . . . . . . . . . . . . . . . . . 320
Vehicle Care . . . . . . . . . . . . . . . . . . 356
Glass Replacement . . . . . . . . . . . . . 389
Glove Box . . . . . . . . . . . . . . . . . . . . . . 119
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 478
H Halogen Bulbs . . . . . . . . . . . . . . . . . . 389
Hazard Warning Flashers . . . . . . . 182
Head Restraints . . . . . . . . . . . . . . . . . 56
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 389
Automatic . . . . . . . . . . . . . . . . . . . . . 181
Bulb Replacement . . . . . . . . . . . . 389
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 181
Flash-to-Pass . . . . . . . . . . . . . . . . . 181
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 390
High-Beam On Light . . . . . . . . . . 151
High/Low Beam Changer . . . . . 180
Lamps On Reminder . . . . . . . . . 151
Heated
Steering Wheel . . . . . . . . . . . . . . . 125
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Heated Mirrors . . . . . . . . . . . . . . . . . . . 48
Heater
Engine Coolant . . . . . . . . . . . . . . . 278
Heating . . . . . . . . . . . . . . .243, 245, 246
High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 392
High-Beam On Light . . . . . . . . . . . . 151
High-Speed Operation . . . . . . . . . . 410
Hill and Mountain Roads . . . . . . . . 262
Hill Descent Control (HDC) . . . . . 301
Hill Descent Control Light . . . . . . . 147
Hill Start Assist (HSA) . . . . . . . . . . 298
Home Page . . . . . . . . . . . . . . . . 194, 196
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 66
HVAC . . . . . . . . . . . . . . . . .243, 245, 246
I Idle System
Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Ignition Positions . . . . . . . . . . . . . . . 274
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . . . 388
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 45
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 148 Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 89
Infotainment . . . . . . . . . . . . . . . . . . . . 188
Infotainment System . . . . . . . . . . . . 487
Instrument Cluster . . . . . . . . . . . . . . 132
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . .119
Interior Rearview Mirrors . . . . . . . . . 50
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J Jack
Auxiliary . . . . . . . . . . . . . . . . . . . . . . 214
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 435
K Key and Lock Messages . . . . . . . . 160
Keyless Entry
Remote (RKE) System . . . . . . . . . 36
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
L Labeling, Tire Sidewall . . . . . . . . . . 402
Lamps
Auxiliary Roof
Mounted Lamp . . . . . . . . . . . . . . 183
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 184
Daytime Running (DRL) . . . . . . 181
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 185