2019 GMC SIERRA fuel line

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
In Brief 5
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . 8
Stop/Start System . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Vehicle Start . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . 10
Windows . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . 11
Memory Features . . . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . 13
Head Restraint Adjustment . . . . 14
Seat Belts . . . . . . . . . . . . . . . . . . . . . 14
Passenger Sensing System . . . 14
Mirror Adjustment . . . . . . . . . . . . . . 15
Steering Wheel Adjustment . . . . 16
Interior Lighting . . . . . . . . . . . . . . . . 17
Exterior Lighting . . . . . . . . . . . . . . . 18
Windshield Wiper/Washer . . . . . . 19
Climate Controls . . . . . . . . . . . . . . . 20
Transmission . . . . . . . . . . . . . . . . . . 21
Four-Wheel Drive . . . . . . . . . . . . . . 22
Vehicle Features
Infotainment System . . . . . . . . . . . 23
Steering Wheel Controls . . . . . . . 23
Cruise Control . . . . . . . . . . . . . . . . . 23
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 23
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . 24
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . 24
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . 24
Lane Keep Assist (LKA) . . . . . . . 25
Lane Change Alert (LCA) . . . . . . 25
Surround Vision . . . . . . . . . . . . . . . 25
Rear Vision Camera (RVC) . . . . 25
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . 25
Park Assist . . . . . . . . . . . . . . . . . . . . 25
Power Outlets . . . . . . . . . . . . . . . . . 26
Universal Remote System . . . . . 26
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 26
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 27
Tire Pressure Monitor . . . . . . . . . . 28
Fuel (Gasoline - Except L87 6.2L Engine) . . . . . . . . . . . . . 28 Fuel (Gasoline - L87 6.2L
Engine) . . . . . . . . . . . . . . . . . . . . . . . 29
Fuel (Diesel) . . . . . . . . . . . . . . . . . . . 29
E85 or FlexFuel . . . . . . . . . . . . . . . . 29
Engine Oil Life System . . . . . . . . 29
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . 30
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 30

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
28 In Brief
.To turn off both TCS and
StabiliTrak/ESC, press and
hold
guntiliandgilluminate
in the instrument cluster and the
appropriate DIC message
displays.
. Press and release
gagain to
turn on both systems.
StabiliTrak/ESC will automatically
turn on if the vehicle exceeds
56 km/h (35 mph). Traction control
will remain off.
See Traction Control/Electronic
Stability Control 0247.
Tire Pressure Monitor
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,
stop as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire and
Loading Information label. See
Vehicle Load Limits 0212. The
warning light will remain on until the
tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See Tire Pressure Monitor System
0 374.
Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated tire to the recommended cold tire
pressure. See
“Tire Fill Alert (If
Equipped)” underTire Pressure
Monitor Operation 0375.
Fuel (Gasoline - Except
L87 6.2L Engine)
Regular Unleaded Fuel
Use only Regular 87 octane —
(R+M)/2 —or higher unleaded
gasoline in your vehicle. TOP TIER
Detergent Gasoline is
recommended. Do not use gasoline
with an octane rating lower as it will
result in reduced performance and
lower fuel economy. See
Recommended Fuel (Except 6.2L
V8 Engine) 0276 or
Recommended Fuel (6.2L
V8 Engine) 0277.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
In Brief 29
Fuel (Gasoline - L87 6.2L
Engine)
Premium Recommended
Use premium 93 octane—(R+M)/2
— unleaded gasoline in your
vehicle. TOP TIER Detergent
Gasoline is recommended.
Unleaded gasoline with an octane
rating as low as 87 may be used,
but it will reduce performance and
fuel economy. See Recommended
Fuel (Except 6.2L V8 Engine) 0276
or
Recommended Fuel (6.2L
V8 Engine) 0277.
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
0 278.
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 the oil life percentage on the DIC. See Driver
Information Center (DIC)
(Midlevel and Uplevel) 0163 or
Driver Information Center (DIC)
(Base Level) 0161.
2. Press the thumbwheel on the steering wheel, or the trip
odometer reset stem if the
vehicle does not have DIC
controls, for several seconds.
When the confirmation
message displays, select YES.
The oil life will change
to 100%.
The oil life system can also be reset
as follows: 1. Display the oil life percentage on the DIC. See Driver
Information Center (DIC)
(Midlevel and Uplevel) 0163 or
Driver Information Center (DIC)
(Base Level) 0161.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
152 Instruments and Controls
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle’s ability to pass
an Emissions Inspection/
Maintenance test. See
Accessories and Modifications
0318.
If the light is flashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service
may be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as
soon as possible.
If the light continues to flash, find a
safe place to park. Turn the vehicle
off and wait at least 10 seconds
before restarting the engine. If the
light is still flashing, follow the
previous guidelines and see your
dealer for service as soon as
possible.
If the light is on steady :
A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
. If fuel has been added to the
vehicle using the capless funnel
adapter, make sure that it has
been removed. See “Filling the
Tank with a Portable Gas Can”
under Filling the Tank 0278.
The diagnostic system can
detect if the adapter has been
left installed in the vehicle,
allowing fuel to evaporate into the atmosphere. A few driving
trips with the adapter removed
may turn off the light.
. Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at
least one full tank of the proper
fuel to turn the light off. See
Recommended Fuel (Except
6.2L V8 Engine) 0276 or
Recommended Fuel (6.2L
V8 Engine) 0277.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
Instruments and Controls 165
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 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 0330.
Brake Pad Life : This displays an
estimate of the remaining life of the
front and rear brake pads.
Messages will display based on
brake pad wear and the state of the
system. Reset the Brake Pad Life
display after replacing the brake
pads. See Brake Pad Life System
0 340. Fuel Economy :
Displays average
fuel economy, the best fuel
economy over the selected
distance, and a bar graph showing
instantaneous fuel economy.
Press the thumbwheel to change
the selected distance. Press and
hold the thumbwheel while this
display is active to reset the best
fuel economy and average fuel
economy. This display can also be
reset by selecting reset in the menu.
Engine Hours (Hourmeter) :
Shows the total number of hours the
engine has run. This display also
shows the engine idle hours.
Transmission Fluid
Temperature : Shows the
temperature of the automatic
transmission fluid in either degrees
Celsius (°C) or degrees
Fahrenheit (°F).
Trailer Brake : On vehicles with the
Integrated Trailer Brake Control
(ITBC) system, the trailer brake
display appears in the DIC. TRAILER GAIN shows the trailer
gain setting. This setting can be
adjusted from 0.0 to 10.0 with either
a trailer connected or disconnected.
OUTPUT shows the power output to
the trailer any time a trailer with
electric brakes is connected. Output
is displayed as a bar graph. Dotted
lines may appear in the OUTPUT
display if a trailer is not connected.
Off Road :
Displays vehicle pitch
and roll information, road wheel
angle, and four-wheel drive (4WD)
status.
Follow Distance : If equipped, the
current follow time to the vehicle
ahead is displayed as a time value
on this page.
Driver Assistance : If equipped,
shows information for Lane Keep
Assist (LKA) and Forward Collision
Alert (FCA).
Info Page Options : Scroll to
choose which info pages appear on
the DIC. Press the thumbwheel to
select or deselect.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
208 Driving and Operating
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive through it slowly. At faster
speeds, water can get into the
engine and cause it to stall. Stalling
can occur if the exhaust pipe is
under water. Do not turn off the
ignition when driving through water.
If the exhaust pipe is under water,
the engine will not start. When going
through water, the brakes get wet
and it may take longer to stop. See
“Driving on Wet Roads” later in this
section.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
Re-install underbody air deflector
and air dam if removed. After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, driveline,
steering, suspension, wheels, tires,
and exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. See the
Maintenance
Schedule 0420.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep-standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
Driving and Operating 215
Example 3
1. Vehicle Capacity Weight forExample 3 = 453 kg
(1,000 lb)
2. Subtract Occupant Weight @ 91 kg (200 lb) × 5 =
453 kg (1,000 lb)
3. Available Cargo Weight = 0 kg (0 lb)
Refer to the Tire and Loading
Information label for specific
information about the vehicle's
capacity weight and seating
positions. The combined weight of the driver, passengers, and
cargo should never exceed the
vehicle's capacity weight.
Certification/Tire Label
A vehicle-specific Certification/
Tire label is label is attached to
the center pillar (B-pillar). The
label may show the size of the
vehicle's original tires and the
inflation pressures needed to
obtain the gross weight capacity
of the vehicle. This is called
Gross Vehicle Weight
Rating (GVWR). The GVWRincludes the weight of the
vehicle, all occupants, fuel, and
cargo.
The Certification/Tire label also
may show the maximum weights
for the front and rear axles,
called Gross Axle Weight
Rating (GAWR). To determine
the actual loads on the front and
rear axles, weigh the vehicle at
a weigh station. Your dealer can
help with this. Be sure to spread
the load equally on both sides of
the centerline.
The Certification/Tire label also
contains important information
about the Front Axle Reserve
Capacity. See
Adding a Snow
Plow or Similar Equipment
0 312.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
Driving and Operating 225
Starting Procedure
1. For Key Access vehicles, turnthe ignition key to START.
When the engine starts, let go
of the key.
For Keyless Access vehicles,
the RKE transmitter must be in
the vehicle. Press ENGINE
START/STOP with the brake
pedal applied. When the
engine begins cranking, let go
of the button.
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.Caution
Cranking the engine for long
periods of time, by returning the
ignition to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start after five to 10 seconds,
especially in very cold weather
(below −18 °C or 0 °F), it could
be flooded with too much
gasoline. Try pushing the
accelerator pedal all the way to
the floor and holding it there
while holding the key in START
or ENGINE START/STOP for
up to a maximum of
15 seconds. Wait at least
15 seconds between each try,
to allow the cranking motor to
cool down. When the engine
starts, let go of the key or button and accelerator. If the
vehicle starts briefly but then
stops again, do the same thing.
This clears the extra gasoline
from the engine. Do not race
the engine immediately after
starting it. Operate the engine
and transmission gently until
the oil warms up and lubricates
all moving parts.
Stop/Start System
If equipped, the Stop/Start system
will shut off the engine to help
conserve fuel. It has components
designed for the increased number
of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may
restart and move unexpectedly.
(Continued)