2016 GMC SIERRA lane assist

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Instruments and Controls 157
This message could be due to the
camera being blocked. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue.
LANE KEEPING ASSIST
UNAVAILABLE
This message displays when the
Lane Keep Assist (LKA) and Lane
Departure Warning (LDW) system is
temporarily unavailable. The LKA
system does not need service.
This message could be due to the
camera being blocked. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue.
PARK ASSIST OFF
This message displays when the
Parking Assist system has been
turned off or when there is a
temporary condition causing the
system to be disabled.
SERVICE FRONT CAMERA
If this message remains on after
continued driving, the vehicle needs
service. Do not use the Lane KeepAssist (LKA), Lane Departure
Warning (LDW), and Forward
Collision Alert (FCA) features. Take
the vehicle to your dealer.
SERVICE PARKING ASSIST
This message displays if there is a
problem with the Parking Assist
system. Do not use this system to
help you park. See your dealer for
service.
Ride Control System
Messages
SERVICE STABILITRAK
If this message displays, it means
there may be a problem with the
StabiliTrak system. If you see this
message, try to reset the system.
Stop; turn off the engine for at least
15 seconds; then start the engine
again. If this message still comes
on, it means there is a problem. You
should see your dealer for service.
The vehicle is safe to drive;
however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message displays, the system will
not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service. See
Traction Control/
Electronic Stability Control 0303.
STABILITRAK INITIALIZING
This message may come on if the
StabiliTrak system has not fully
initialized because of road
conditions or the incorrect tire size.
When the StabiliTrak system is fully
initialized, the message will turn off.
See Traction Control/Electronic
Stability Control 0303. If this
message continues to be displayed
for multiple ignition cycles and on
different road surfaces, see your
dealer for service.
TRACTION CONTROL OFF
This message displays when the
traction control has been turned off.
See Traction Control/Electronic
Stability Control 0303.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Instruments and Controls 165
Tone Settings
Select to adjust the radio tone. See
“Tone Settings”inAM-FM Radio
(Base Radio with Touchscreen)
0 195 orAM-FM Radio (Base
Radio) 0193.
Auto Volume
This feature adjusts the volume
based on vehicle speed and
ambient noise.
Select Off, Low, Medium-Low,
Medium, Medium-High, or High.
Maximum Startup Volume
This feature sets the maximum
startup volume. If the vehicle is
started and the volume is greater
than this level, the volume is
adjusted to this level. To set the
maximum startup volume, turn the
MENU knob or press + or −to
increase or decrease.
Audio Cue Volume
This feature sets the volume of
audio files played at system startup
and shutdown. Select On, then press + or
−to
increase or decrease the volume.
Vehicle
Select and the following may
display:
. Climate and Air Quality
. Collision/Detection Systems
. Comfort and Convenience
. Lighting
. Power Door Locks
. Remote Lock, Unlock, Start
Climate and Air Quality
Select and the following may
display:
. Auto Fan Max Speed
. Auto Rear Defog
Auto Fan Max Speed
This feature will set the maximum
auto fan speed.
Select Low, Medium, or High. Auto Rear Defog
This feature will automatically turn
on the rear defogger when it is cold
outside.
Select Off or On.
Collision/Detection Systems
Select and the following may
display:
.
Alert Type
. Park Assist
Alert Type
This feature will set crash alerts to
beeps or seat vibrations. This
setting affects all crash alerts
including Forward Collision, Lane
Departure Warning, and Parking
Assist alerts.
Select Beeps or Safety Alert Seat.
Park Assist
If equipped, this feature can assist
in backing up and parking the
vehicle. See Assistance Systems for
Parking or Backing 0309.
Select Off, On, or On with Towbar.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
256 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 257
Defensive Driving . . . . . . . . . . . . . 258
Drunk Driving . . . . . . . . . . . . . . . . . 258
Control of a Vehicle . . . . . . . . . . . 258
Braking . . . . . . . . . . . . . . . . . . . . . . . 258
Steering . . . . . . . . . . . . . . . . . . . . . . 259
Off-Road Recovery . . . . . . . . . . . 260
Loss of Control . . . . . . . . . . . . . . . 260
Off-Road Driving . . . . . . . . . . . . . 261
Driving on Wet Roads . . . . . . . . 265
Hill and Mountain Roads . . . . . 266
Winter Driving . . . . . . . . . . . . . . . . 267
If the Vehicle Is Stuck . . . . . . . . 268
Vehicle Load Limits . . . . . . . . . . . 269
Truck-Camper LoadingInformation . . . . . . . . . . . . . . . . . . 275
Starting and Operating
New Vehicle Break-In . . . . . . . . . 277
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 277
Ignition Positions . . . . . . . . . . . . . 278
Starting the Engine . . . . . . . . . . . 279
Fast Idle System . . . . . . . . . . . . . 280 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 281
Engine Coolant Heater . . . . . . . 281
Shifting Into Park . . . . . . . . . . . . . 283
Shifting out of Park . . . . . . . . . . . 284
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 285
Active Fuel Management
®. . . . 285
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 285
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 286
Automatic Transmission
Automatic Transmission . . . . . . 286
Manual Mode . . . . . . . . . . . . . . . . . 289
Tow/Haul Mode . . . . . . . . . . . . . . . 292
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 293
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 300
Parking Brake . . . . . . . . . . . . . . . . 301
Brake Assist . . . . . . . . . . . . . . . . . . 302
Hill Start Assist (HSA) . . . . . . . . 302
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 303 Hill Descent Control (HDC) . . . 305
Locking Rear Axle . . . . . . . . . . . . 305
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 306
Driver Assistance Systems
Driver Assistance Systems . . . 309
Assistance Systems for
Parking or Backing . . . . . . . . . . 309
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 312
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 312
Lane Departure Warning (LDW) (2500/3500
Series) . . . . . . . . . . . . . . . . . . . . . . 314
Lane Keep Assist (LKA) (1500 Series) . . . . . . . . . . . . . . . . . . . . . . 315
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 317
California FuelRequirements . . . . . . . . . . . . . . . 318
Fuels in Foreign Countries . . . 319
Fuel Additives . . . . . . . . . . . . . . . . 319
E85 or FlexFuel . . . . . . . . . . . . . . 319
Filling the Tank . . . . . . . . . . . . . . . 320
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 322

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Driving and Operating 267
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering. Always have the
engine running and the vehicle
in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, accident).
. Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.
. Turn on Traction Control. See
Traction Control/Electronic
Stability Control 0303.
. The Antilock Brake System
(ABS) improves vehicle stability
during hard stops, but the
brakes should be applied sooner
than when on dry pavement.
See Antilock Brake System
(ABS) 0300.
. Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
. Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 0476. To get
help and keep everyone in the
vehicle safe:
. Turn on the hazard warning
flashers.
. Tie a red cloth to an outside
mirror.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
312 Driving and Operating
Towbar setting allows for the
parking assist to work properly with
a small item attached to the trailer
hitch. Turn off parking assist when
towing a trailer.
To turn the rear parking assist
symbols or guidance lines on or off,
see“Rear Camera” underVehicle
Personalization 0163.
Disconnecting the Rear Vision
Camera (RVC)
The RVC must be disconnected if
the tailgate needs to be removed.
The RVC is disconnected by
removing the connector from the
electrical junction block mounted on
the left side of the cross member of
the vehicle frame. After
disconnecting, the cap mounted
next to the camera connector must
be relocated so that the open
terminals on the junction block are
covered.
Assistance Systems for
Driving
If equipped, when driving the
vehicle in a forward gear, Forward
Collision Alert (FCA), Lane
Departure Warning (LDW), and/or
Lane Keep Assist (LKA) can help to
avoid a crash or reduce crash
damage.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When
approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield and rapidly
beeps or pulses the driver seat.
FCA also lights an amber visual
alert if following another vehicle
much too closely.
FCA detects vehicles within a
distance of approximately 60 m
(197 ft) and operates at speeds
above 40 km/h (25 mph).
{Warning
FCA is a warning system and
does not apply the brakes. When
approaching a slower-moving or
stopped vehicle ahead too rapidly,
or when following a vehicle too
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
does not warn of pedestrians,
animals, signs, guardrails,
bridges, construction barrels,
or other objects. Be ready to take
action and apply the brakes. See
Defensive Driving 0258.
FCA can be disabled with the FCA
steering wheel control.
Detecting the Vehicle Ahead

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Driving and Operating 315
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.
When LDW is on,@is green if
LDW is available to warn of a lane
departure. If the vehicle crosses a
detected lane marking without using
the turn signal in that direction,
@
changes to amber and flashes.
Additionally, there will be three
beeps, or the driver seat will pulse
three times on the right or left,
depending on the lane departure
direction.
When the System Does Not
Seem to Work Properly
The system may not detect lanes as
well when there are:
. Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads. If the LDW system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
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 LDW off if these
conditions continue.
Lane Keep Assist (LKA)
(1500 Series)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lane marking is
crossed. The LKA system will not
assist or provide an LDW alert if it
detects that you are actively
steering. Override LKA by turning
the steering wheel. LKA uses a

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
316 Driving and Operating
camera to detect lane markings
between 60 km/h (37 mph) and
180 km/h (112 mph).
{Warning
The LKA system does not
continuously steer the vehicle.
It may not keep the vehicle in the
lane or give a Lane Departure
Warning (LDW) alert, even if a
lane marking is detected.
The LKA and LDW systems
may not:. Provide an alert or enough
steering assist to avoid a
lane departure or 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.
(Continued)
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.
{Warning
Using 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
A
on the center stack.
When on,Ais green if LKA is
available to assist and provide LDW
alerts. It may assist by gently
turning the steering wheel and
display
Aas amber if the vehicle
approaches a detected lane marking
without using a turn signal in that

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Driving and Operating 317
direction. It may also provide an
LDW alert by flashing
Aamber
as the lane marking is crossed.
Additionally, there will be three
beeps, or the driver seat will pulse
three times, on the right or left,
depending on the lane departure
direction.
The LKA system does not
continuously steer the vehicle.
If LKA does not detect active driver
steering, an alert and chime 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.
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.
Use of the recommended fuel is an
important part of the proper
maintenance of this vehicle. When
driving in the U.S. and Canada, to
help keep the engine clean and
maintain optimum vehicle
performance, we recommend using
TOP TIER Detergent Gasolines.
See www.toptiergas.com for a list of
TOP TIER Detergent Gasolines.