park assist GMC SIERRA 2017 Owner's Guide

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
320 Driving and Operating
Trailer Towing
General Towing
Information
Only use towing equipment that has
been designed for the vehicle.
Contact your dealer or trailering
dealer for assistance with preparing
the vehicle for towing a trailer. Read
the entire section before towing a
trailer.
For towing a disabled vehicle, see
Towing the Vehicle0439. For
towing the vehicle behind another
vehicle such as a motor home, see
Recreational Vehicle Towing 0440.
Driving Characteristics
and Towing Tips
Driving with a Trailer
When towing a trailer:
.
Become familiar with the state
and local laws that apply to
trailer towing. .
The trailer must be equipped
with brakes adequate for the
intended use. A loaded trailer
weighing more than 900 kg
(2,000 lb) must be equipped with
its own brake system, with
brakes working on all axles.
Trailer braking equipment
conforming to Canadian
Standards Association (CSA)
requirement CAN3-D313, or its
equivalent, is recommended.
. Do not tow a trailer during the
first 800 km (500 mi) to prevent
damage to the engine, axle,
or other parts.
. Then during the first 800 km
(500 mi) of trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
. Vehicles can tow in D (Drive).
The Tow/Haul Mode may be
used if the transmission shifts
too often. See Tow/Haul Mode
0 288.
. Turn off Park Assist when
towing.
{Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
. Also adjust the climate
control system to a setting
that brings in only outside
air. See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0282.
Towing a trailer requires a certain
amount of experience. The
combination you are driving is
longer and not as responsive as the

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
344 Driving and Operating
.White: Ground
. White/Green: Back-up Lamps
. Red/Green: Battery Feed
. Dark Blue: Trailer Brake
If the vehicle is equipped with the
heavy-duty trailering option, see
“Heavy-Duty Trailer Wiring Harness
Package” earlier in this section.
When the camper-wiring harness is
ordered without the heavy-duty
trailering package, a seven-wire
harness with a seven-pin connector
is at the rear of the vehicle and is
tied to the vehicle's frame.
Electric Brake Control Wiring
Provisions
These wiring provisions are
included with the vehicle as part of
the trailer wiring package. These
provisions are for an electric brake
controller.
The harness should be installed by
your dealer or a qualified service
center.
Tow/Haul Mode
Pressing this button at the end of
the shift lever turns on and off the
Tow/Haul Mode.
This indicator light on the instrument
cluster comes on when the Tow/
Haul Mode is on. Tow/Haul is a feature that assists
when pulling a heavy trailer or a
large or heavy load. See
Tow/Haul
Mode 0288.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at least
75% of the vehicle's Gross
Combined Weight Rating (GCWR).
See “Weight of the Trailer” under
Trailer Towing 0323. Tow/Haul is
most useful under the following
driving conditions:
. When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
. When pulling a heavy trailer or a
large or heavy load in
stop-and-go traffic.
. When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.
Operating the vehicle in Tow/Haul
when lightly loaded or with no trailer
at all will not cause damage.
However, there is no benefit to the

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Vehicle Care 377
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0478.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
4.3L V6, 5.3L V8, and 6.2L
V8 Engines
Check to see if the engine cooling
fans are running. If the engine is
overheating, the fans should be
running. If they are not, do not
continue to run the engine and have
the vehicle serviced.
If Steam is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it (Continued)
Warning (Continued)
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious
problem. If there is an engine overheat
warning, but no steam is seen or
heard, the problem may not be too
serious. Sometimes the engine can
get a little too hot when the vehicle:
.
Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer; see Trailer Towing
0 323.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral) and let the
engine idle.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
424 Vehicle Care
{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized
tire service center repair or
replace the flat tire as soon as
possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could(Continued)
Warning (Continued)
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard
Warning Flashers 0182.
{Warning
Changing a tire can be
dangerous. The vehicle can slip
off the jack and roll over or fall
causing injury or death. Find a
level place to change the tire. To
help prevent the vehicle from
moving:
1. Set the parking brake firmly. (Continued)
Warning (Continued)
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. For four-wheel-drive vehicles, be sure the
transfer case is in a drive
gear– not in N (Neutral).
4. Turn off the engine and do not restart while the vehicle
is raised.
5. Do not allow passengers to remain in the vehicle.
6. Place wheel blocks, if equipped, on both sides of
the tire at the opposite
corner of the tire being
changed.
When the vehicle has a flat tire (2),
use the following example as a
guide to assist in the placement of
the wheel blocks (1), if equipped.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
494 OnStar
to the vehicle in a crash, or wireless
phone network congestion or
jamming—may prevent service.
See Radio Frequency Statement
0 484.
Services for People with
Disabilities
Advisors provide services to help
Subscribers with physical disabilities
and medical conditions.
Press
Qto help:
. Locate a gas station with an
attendant to pump gas.
. Find a hotel, restaurant, etc.,
that meets accessibility needs.
. Provide directions to the closest
hospital or pharmacy in urgent
situations.
TTY Users
OnStar has the ability to
communicate to deaf,
hard-of-hearing, or speech-impaired
customers while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle access to all OnStar services,
except Virtual Advisor and OnStar
Turn-by-Turn Navigation.
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some
OnStar services. The PIN will need
to be changed the first time when
speaking with an Advisor. To
change the OnStar PIN, contact an
OnStar Advisor by pressing
Qor
calling 1-888-4ONSTAR.
Warranty
OnStar equipment may be
warranted as part of the vehicle
warranty.
Languages
The vehicle can be programmed to
respond in multiple languages.
Press
Qand ask for an Advisor.
Advisors are available in English,
Spanish, and French. Available
languages may vary by country.
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for 10 days
without an ignition cycle. If the
vehicle has not been started for
five days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.
Global Positioning
System (GPS)
. Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals
are not available, the OnStar
system should still operate to
call OnStar. However, OnStar
could have difficulty identifying
the exact location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Index 499
Antilock 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 ChargingMessages . . . . . . . . . . . . . . . . . . . 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 AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 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 501
Customer SatisfactionProcedure . . . . . . . . . . . . . . . . . . . . . 474
D
Damage Repair, Collision . . . . . . . 481
Danger, Warning, and Caution . . . . 3
Data Collection
Infotainment System . . . . . . . . . . 487
OnStar . . . . . . . . . . . . . . . . . . . . . . . 486
Data Recorders, Event . . . . . . . . . 486
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 181
Defensive Driving . . . . . . . . . . . . . . . 254
Delayed Locking . . . . . . . . . . . . . . . . . 40
Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 492
Distracted Driving . . . . . . . . . . . . . . . 253
Dome Lamps . . . . . . . . . . . . . . . . . . . 185
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 152
Ajar Messages . . . . . . . . . . . . . . . 158
Delayed Locking . . . . . . . . . . . . . . . . 40
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power Locks . . . . . . . . . . . . . . . . . . . . 40
Drive Belt Routing, Engine . . . . . . 473
Driver Assistance Systems . . . . . 305
Driver Information Center (DIC) . . . . . . . . . . . . . 152, 154 Driving
Assistance Systems . . . . . . . . . . 308
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 320
Defensive . . . . . . . . . . . . . . . . . . . . . 254
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 254
For Better Fuel Economy . . . . . . . 31
Hill and Mountain Roads . . . . . . 262
If the Vehicle is Stuck . . . . . . . . . 264
Loss of Control . . . . . . . . . . . . . . . 256
Off-Road . . . . . . . . . . . . . . . . . . . . . 257
Off-Road Recovery . . . . . . . . . . . 256
Vehicle Load Limits . . . . . . . . . . . 265
Wet Roads . . . . . . . . . . . . . . . . . . . 261
Winter . . . . . . . . . . . . . . . . . . . . . . . . 263
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 246
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 317
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 350
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 393
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 393
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 396, 398
Overload . . . . . . . . . . . . . . . . . . . . . 392 Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 489
Engine Air Cleaner/Filter . . . . . . . . . . . . . 371
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 144
Compartment Overview . . . . . . . 359
Coolant . . . . . . . . . . . . . . . . . . . . . . . 374
Coolant Heater . . . . . . . . . . . . . . . 278
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 138
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 149
Cooling System . . . . . . . . . . . . . . . 372
Cooling System Messages . . . 159
Drive Belt Routing . . . . . . . . . . . . 473
Exhaust . . . . . . . . . . . . . . . . . . . . . . 282
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Oil Life System . . . . . . . . . . . . . . . 367
Oil Messages . . . . . . . . . . . . . . . . . 159
Oil Pressure Gauge . . . . . . . . . . 137
Oil Pressure Light . . . . . . . . . . . . 150
Overheated Protection Operating Mode . . . . . . . . . . . . . 378
Overheating . . . . . . . . . . . . . . . . . . 376
Power Messages . . . . . . . . . . . . . 160
Running While Parked . . . . . . . . 282
Starting . . . . . . . . . . . . . . . . . . . . . . . 275

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
506 Index
OnStar®Overview . . . . . . . . . . . . . . 488
OnStar®Security . . . . . . . . . . . . . . . 489
Operating Mode Overheated EngineProtection . . . . . . . . . . . . . . . . . . . 378
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 183
Ordering Service Publications . . . . . . . . . . 483
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 128
Overheated Engine Protection Operating Mode . . . . 378
Overheating, Engine . . . . . . . . . . . . 376
Overview . . . . . . . . . . . . . . . . . . 189, 193
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 279
Shifting Out of . . . . . . . . . . . . . . . . 280
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 297
Brake and P (Park)Mechanism Check . . . . . . . . . . 388
Over Things That Burn . . . . . . . 281
Parking Assist . . . . . . . . . . . . . . . . . . 306
Parking or Backing
Assistance Systems . . . . . . . . . . 306 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 143
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Passenger Sensing System . . . . . 81
Perchlorate Materials Requirements, California . . . . . . 357
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 167
Phone Apple CarPlay and
Android Auto . . . . . . . . . . . . . . . . 237
Bluetooth . . . . . . . . 222, 224, 228, 233
Pickup Conversion to
Chassis Cab . . . . . . . . . . . . . . . . . . 354
Port USB . . . . . . . . . . . . . . . . . . . . . 206, 208
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 40
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Outlets . . . . . . . . . . . . . . . . . . . . . . . 128
Protection, Battery . . . . . . . . . . . . 187
Retained Accessory (RAP) . . . 277
Seat Adjustment . . . . . . . . . . . . . . . . 58
Steering Fluid . . . . . . . . . . . . . . . . . 379
Windows . . . . . . . . . . . . . . . . . . . . . . . 51
Power Assist Steps . . . . . . . . . . . . . . 42 Pregnancy, Using Safety Belts . . . 70
Privacy
Vehicle Data Recording . . . . . . . 485
Program Courtesy Transportation . . . . . . 480
Proposition 65 Warning,
California . . . . . . . . . . . .357, 383, 435
R
Radio Frequency Statement . . . . 484
Radio Reception . . . . . . . . . . . . . . . . 202
Radios
AM-FM Radio . . . . . . . . . . . . 197, 199
Satellite . . . . . . . . . . . . . . . . . . 200, 201
Reading Lamps . . . . . . . . . . . . . . . . . 185
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 385 Locking . . . . . . . . . . . . . . . . . . . . . . . 302
Rear Seats . . . . . . . . . . . . . . . . . . 63, 64
Rear Vision Camera (RVC) . . . . . 306
Rear Windows . . . . . . . . . . . . . . . . . . . 53
Rearview Mirrors . . . . . . . . . . . . . . . . 50 Automatic Dimming . . . . . . . . . . . . . 50
Reclining Seatbacks . . . . . . . . . . . . . 59
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . 216
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 464

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Index 507
RecordsMaintenance . . . . . . . . . . . . . . . . . . 468
Recreational Vehicle Towing . . . . 440
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . 478
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . 36
Remote Vehicle Start . . . . . . . . . . . . 38
Replacement Glass . . . . . . . . . . . . . . . . . . . . . . . . . 389
Replacement Bulbs . . . . . . . . . . . . . 392
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 87
Maintenance . . . . . . . . . . . . . . . . . . 466
Replacing Airbag System . . . . . . . . 87
Replacing LATCH System Parts after a Crash . . . . . . . . . . . . 106
Replacing Safety Belt System Parts after a Crash . . . . . . . . . . . . . 72
Reporting Safety Defects Canadian Government . . . . . . . . 485
General Motors . . . . . . . . . . . . . . . 485
U.S. Government . . . . . . . . . . . . . 484
Restraints Where to Put . . . . . . . . . . . . . . . . . . . 93
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . 277
Reverse Tilt Mirrors . . . . . . . . . . . . . . 50 Ride Control Systems
Messages . . . . . . . . . . . . . . . . . . . . 161
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 261
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 478
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 53
Rotation, Tires . . . . . . . . . . . . . . . . . . 415
Routing, Engine Drive Belt . . . . . . 473
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 282
S
Safety Belts . . . . . . . . . . . . . . . . . . . . . 65Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Extender . . . . . . . . . . . . . . . . . . . . . . . . 71
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 66
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 71
Lap-Shoulder Belt . . . . . . . . . . . . . . 67
Messages . . . . . . . . . . . . . . . . . . . . 163
Reminders . . . . . . . . . . . . . . . . . . . . 140
Replacing after a Crash . . . . . . . . 72
Use During Pregnancy . . . . . . . . . . 70
Safety Defects Reporting
Canadian Government . . . . . . . . 485
General Motors . . . . . . . . . . . . . . . 485 Safety Defects Reporting (cont'd)
U.S. Government . . . . . . . . . . . . . 484
Safety Locks . . . . . . . . . . . . . . . . . . . . . 41
Safety System Check . . . . . . . . . . . . 71
Satellite Radio . . . . . . . . . . . . . 200, 201
Scheduling Appointments . . . . . . . 480
Seats Adjustment, Front . . . . . . . . . . . . . . . 57
Center Seat . . . . . . . . . . . . . . . . . . . . 57
Head Restraints . . . . . . . . . . . . . . . . 56
Heated and Ventilated Front . . . . 62
Lumbar Adjustment, Front . . . . . . 58
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 60
Power Adjustment, Front . . . . . . . 58
Rear . . . . . . . . . . . . . . . . . . . . . . . . 63, 64
Reclining Seatbacks . . . . . . . . . . . . 59
Securing Child Restraints . . . . . . . . . . . . . . . . 106, 110
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Messages . . . . . . . . . . . . . . . . . . . . 163
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 489
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 43
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 43
Service . . . . . . . . . . . . . . . . . . . . . . . . . 251 Accessories andModifications . . . . . . . . . . . . . . . . 357

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
508 Index
Service (cont'd)Climate Control
System . . . . . . . . . . . . . . . . . 243, 245
Doing Your Own Work . . . . . . . . 358
Maintenance Records . . . . . . . . 468
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 454
Parts Identification Label . . . . . 469
Publications Ordering Information . . . . . . . . . . . . . . . . . . 483
Scheduling Appointments . . . . . 480
Services Special Application . . . . . . . . . . . 461
Servicing the Airbag . . . . . . . . . . . . . 85
Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 387
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . 279
Out of Park . . . . . . . . . . . . . . . . . . . 280
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 182
Snow Plow . . . . . . . . . . . . . . . . . . . . . 350
Software Updates . . . . . . . . . . . . . . 197
Special Application Services . . . . 461
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 470
Speedometer . . . . . . . . . . . . . . . . . . . 136 StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 148
Start Assist, Hill . . . . . . . . . . . . . . . . . 298
Start Vehicle, Remote . . . . . . . . . . . 38
Starter Switch Check . . . . . . . . . . . 387
Starting the Engine . . . . . . . . . . . . . 275
Steering . . . . . . . . . . . . . . . . . . . . . . . . 255 Fluid, Power . . . . . . . . . . . . . . . . . . 379
Heated Wheel . . . . . . . . . . . . . . . . 125
Wheel Adjustment . . . . . . . . . . . . 124
Wheel Controls . . . . . . . . . . . . . . . 125
Steering System Messages . . . . . 163
Steps Power Assist . . . . . . . . . . . . . . . . . . . 42
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 390
Storage Areas Center Console . . . . . . . . . . . . . . . 120
Floor Console . . . . . . . . . . . . . . . . 121
Glove Box . . . . . . . . . . . . . . . . . . . . .119
Instrument Panel . . . . . . . . . . . . . .119
Sunglasses . . . . . . . . . . . . . . . . . . . 120
Storage Compartments . . . . . . . . . 119
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 264
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 53
Sunglass Storage . . . . . . . . . . . . . . . 120
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 79
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 308
Infotainment . . . . . . . . . . . . . 188, 487
Noise Control . . . . . . . . . . . . . . . . . 386
Systems Driver Assistance . . . . . . . . . . . . . 305
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 136
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 41
TaillampsBulb Replacement . . . . . . . . . . . . 390
Text Telephone (TTY) Users . . . . 477
Theft-Deterrent Systems . . . . . . . . . 45
Immobilizer . . . . . . . . . . . . . . . . . . . . . 45
Throttle, Adjustable . . . . . . . . . . . . . 273
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 All-Season . . . . . . . . . . . . . . . . . . . . 401
All-Terrain . . . . . . . . . . . . . . . . . . . . 402
Buying New Tires . . . . . . . . . . . . . 418
Chains . . . . . . . . . . . . . . . . . . . . . . . . 422
Changing . . . . . . . . . . . . . . . . . . . . . 425
Designations . . . . . . . . . . . . . . . . . 405
Different Size . . . . . . . . . . . . . . . . . 419