2016 GMC SIERRA ECO mode

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
370 Vehicle Care
Consistency of Readings
Always check the fluid level at least
twice using the procedure described
previously. Consistency (repeatable
readings) is important to maintaining
proper fluid level. If readings are still
inconsistent, contact the dealer.
Automatic Transmission
Fluid (8 Speed
Transmission)
When to Check and Change
Automatic Transmission Fluid
It is usually not necessary to check
the transmission fluid level. The only
reason for fluid loss is a
transmission leak or overheated
transmission. This vehicle is not
equipped with a transmission fluid
level dipstick. There is a special
procedure for checking and
changing the transmission fluid in
these vehicles. Because this
procedure is difficult, this should be
done at the dealer. Contact the
dealer for additional information or
the procedure can be found in theservice manual. See
Service
Publications Ordering
Information 0481.
Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the
automatic transmission fluid listed
in Recommended Fluids and
Lubricants 0463.
Change the fluid and filter at the
scheduled maintenance intervals
listed in Maintenance Schedule
0 454. Be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants 0463.
Engine Air Cleaner/Filter
If the vehicle has a diesel engine,
see “8-Cylinder Pickup Models”
under “Engine Air Cleaner/Filter” inthe Duramax diesel supplement for
the correct inspection and
replacement procedures.
The engine air cleaner/filter is near
the center of the engine
compartment. See
Engine
Compartment Overview 0358.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air filter, see
Maintenance Schedule 0454.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/
filter, make sure that the engine air
cleaner/filter housing and nearby
components are free of dirt and
debris. Remove the engine air
cleaner/filter. Lightly tap and shake
the engine air cleaner/filter (away
from the vehicle), to release loose
dust and dirt. Inspect the engine air
cleaner/filter for damage, and
replace if damaged. Do not clean

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Vehicle Care 377
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally
and have the cooling system
checked for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam and
the vehicle is equipped with an
engine driven cooling fan, push
down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
five minutes while the vehicle is
parked. If the warning is still there,
turn off the engine and get everyone
out of the vehicle until it cools down.
If there is no sign of steam, idle the
engine for five minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.Overheated Engine
Protection
Operating Mode
If an overheated engine condition
exists and the ENGINE POWER IS
REDUCED message displays, an
overheat protection mode which
alternates firing groups of cylinders
helps to prevent engine damage. In
this mode, a loss in power and
engine performance will be noticed.
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Driving extended
distances and/or towing a trailer in
the overheat protection mode
should be avoided.
Caution
After driving in the overheated
engine protection operating
mode, the engine oil will be
severely degraded. Any repairs
performed before the engine is
cool may cause engine damage.
Allow the engine to cool before(Continued)
Caution (Continued)
attempting any repair. Repair the
cause of coolant loss, change the
oil, and reset the oil life system.
SeeEngine Oil 0363.
Engine Fan
If the vehicle has a clutched engine
cooling fan, when the clutch is
engaged, the fan spins faster to
provide more air to cool the engine.
In most everyday driving conditions,
the fan is spinning slower and the
clutch is not fully engaged. This
improves fuel economy and reduces
fan noise. Under heavy vehicle
loading, trailer towing, and/or high
outside temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan
will slow down when additional
cooling is not required and the
clutch disengages.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Vehicle Care 413
The TPMS sensor matching
process is:1. Set the parking brake.
2. Turn the ignition to ON/RUN with the engine off.
3. Uplevel DIC Only: Make sure the Tire Pressure info page
option is turned on. The info
pages on the DIC can be
turned on and off through the
Settings menu. See Driver
Information Center (DIC) (Base
Level) 0148 orDriver
Information Center (DIC)
(Uplevel) 0150.
4. If the vehicle has an uplevel DIC, use the DIC controls on
the right side of the steering
wheel to scroll to the Tire
Pressure screen under the DIC
info page.
If the vehicle has a base level
DIC, use the trip odometer
reset stem to scroll to the Tire
Pressure screen. 5. If the vehicle has an uplevel
DIC, press and hold the
V
(Set/Reset) button located in
the center of the DIC controls.
If the vehicle has a base level
DIC, press and hold the trip
odometer reset stem for about
five seconds. A message
asking if the process should
begin should appear. Select
yes and press the trip
odometer reset stem to confirm
the selection.
The horn sounds twice to
signal the receiver is in relearn
mode and the TIRE
LEARNING ACTIVE message
displays on the DIC screen.
6. Start with the driver side front tire.
7. Place the relearn tool against the tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position. 8. Proceed to the passenger side
front tire, and repeat the
procedure in Step 7.
9. Proceed to the passenger side rear tire, and repeat the
procedure in Step 7.
10. Proceed to the driver side rear tire, and repeat the procedure
in Step 7. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
11. Turn the ignition switch to LOCK/OFF.
12. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Vehicle Care 425
Regular Cab
1. Wing Nut Retaining WheelBlocks
2. Wheel Blocks
3. Wing Nut Retaining Tool Kit
4. Tool Kit
5. Jack
6. Jack Knob
Double Cab
1. Wheel Blocks
2. Wing Nut Retaining Tool Kit
3. Tool Kit
4. Jack
5. Jack Knob
For regular cab models, the
equipment you will need is behind
the passenger seat. For double and
crew cab models, the equipment is
on the shelf behind the passenger
side second row seat.
1. Turn the knob on the jack counterclockwise to lower the
jack head to release the jack
from its holder. 2. Turn the wing nut
counterclockwise to remove the
wheel blocks and the wheel
block retainer.
3. Turn the wing nut used to retain the storage bag and
tools counterclockwise to
remove it.
Use the jack handle extensions and
the wheel wrench to remove the
underbody-mounted spare tire.
1. Spare Tire (Valve Stem Pointed Down)
2. Tire/Wheel Retainer
3. Hoist Cable
4. Hoist Assembly

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Vehicle Care 429
Rear Position–All Other Models
For all other models, position
the jack under the rear axle
between the spring anchor and
the shock absorber bracket.
If a snow plow has been added
to the front of the vehicle, lower
the snow plow fully before
raising the vehicle.
Make sure that the jack head is
positioned so that the rear axle
is resting securely between the
grooves that are on the
jack head.
{Warning
Getting under a vehicle when it is
lifted on a jack is dangerous.
If the vehicle slips off the jack,
you could be badly injured or
killed. Never get under a vehicle
when it is supported only by
a jack.
{Warning
Raising the vehicle with the jack
improperly positioned can
damage the vehicle and even
make the vehicle fall. To help
avoid personal injury and vehicle
damage, be sure to fit the jack lift
head into the proper location
before raising the vehicle.
6. Turn the wheel wrench clockwise to raise the vehicle.
Raise the vehicle far enough
off the ground so there is
enough room for the spare tire
to fit under the wheel well.
7. Remove all the wheel nuts andtake off the flat tire.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, a cloth or a paper
towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Customer Information 481
.Vehicle make, model, and
model year.
. Vehicle Identification
Number (VIN).
. Insurance company and policy
number.
. General description of the
damage to the other vehicle.
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See after an Airbag
Inflates? 077.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Service Publications
Ordering Information
Service Manuals
Service Manuals have the diagnosis
and repair information on the
engines, transmission, axle,
suspension, brakes, electrical,
steering, body, etc.
Service Bulletins
Service Bulletins give additional
technical service information
needed to knowledgeably service
General Motors cars and trucks.
Each bulletin contains instructions
to assist in the diagnosis and
service of the vehicle.
Owner Information
Owner publications are written
specifically for owners and intended
to provide basic operational
information about the vehicle. The
Owner Manual includes the
Maintenance Schedule for all
models.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Index 499
D
Damage Repair, Collision . . . . . . . 479
Danger, Warning, and Caution . . . . 3
Data Recorders, Event . . . . . . . . . 484
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . 177
Defensive Driving . . . . . . . . . . . . . . . 258
Delayed Locking . . . . . . . . . . . . . . . . . 39
Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 490
Distracted Driving . . . . . . . . . . . . . . . 257
Dome Lamps . . . . . . . . . . . . . . . . . . . 181
Door Ajar Messages . . . . . . . . . . . . . . . 154
Delayed Locking . . . . . . . . . . . . . . . . 39
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Locks . . . . . . . . . . . . . . . . . . . . 39
Drive Belt Routing, Engine . . . . . . 471
Driver Assistance Systems . . . . . 309
Driver Information Center (DIC) . . . . . . . . . . . . . 148, 150
Driving Assistance Systems . . . . . . . . . . 312
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 322
Defensive . . . . . . . . . . . . . . . . . . . . . 258
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 258
For Better Fuel Economy . . . . . . . 30 Driving (cont'd)
Hill and Mountain Roads . . . . . . 266
If the Vehicle is Stuck . . . . . . . . . 268
Loss of Control . . . . . . . . . . . . . . . 260
Off-Road . . . . . . . . . . . . . . . . . . . . . 261
Off-Road Recovery . . . . . . . . . . . 260
Vehicle Load Limits . . . . . . . . . . . 269
Wet Roads . . . . . . . . . . . . . . . . . . . 265
Winter . . . . . . . . . . . . . . . . . . . . . . . . 267
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 250
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 319
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 349
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 392
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 392
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 395, 397
Overload . . . . . . . . . . . . . . . . . . . . . 391
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 487
Engine Air Cleaner/Filter . . . . . . . . . . . . . 370
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 141 Engine (cont'd)
Compartment Overview . . . . . . . 358
Coolant . . . . . . . . . . . . . . . . . . . . . . . 373
Coolant Heater . . . . . . . . . . . . . . . 281
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 135
Cooling System . . . . . . . . . . . . . . . 371
Cooling System Messages . . . 154
Drive Belt Routing . . . . . . . . . . . . 471
Exhaust . . . . . . . . . . . . . . . . . . . . . . 285
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Oil Life System . . . . . . . . . . . . . . . 366
Oil Messages . . . . . . . . . . . . . . . . . 155
Oil Pressure Gauge . . . . . . . . . . 134
Overheated Protection Operating Mode . . . . . . . . . . . . . 377
Overheating . . . . . . . . . . . . . . . . . . 375
Power Messages . . . . . . . . . . . . . 155
Running While Parked . . . . . . . . 286
Starting . . . . . . . . . . . . . . . . . . . . . . . 279
Entry Lighting . . . . . . . . . . . . . . . . . . . 182
Equipment, Towing . . . . . . . . . . . . . 339
Event Data Recorders . . . . . . . . . . 484
Exit Lighting . . . . . . . . . . . . . . . . . . . . 182
Extender, Safety Belt . . . . . . . . . . . . 70
Exterior Lamp Controls . . . . . . . . . 174
Exterior Lamps Off Reminder . . . 176

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
502 Index
Lamps (cont'd)Reading . . . . . . . . . . . . . . . . . . . . . . 181
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 314
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Lane Keep Assist (LKA) . . . . . . . . 315
Lane Keep Assist Light . . . . . . . . . 144
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 70
Lap-Shoulder Belt . . . . . . . . . . . . . . . 66
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 104
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 94
LED Lighting . . . . . . . . . . . . . . . . . . . . 389
Light Hill Decent Control . . . . . . . . . . . 144
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 182
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Illumination Control . . . . . . . . . . . 180
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Airbag On-Off . . . . . . . . . . . . . . . . . 138
Airbag Readiness . . . . . . . . . . . . . 137
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 143 Lights (cont'd)
Brake System Warning . . . . . . . 142
Charging System . . . . . . . . . . . . . 140
Cruise Control . . . . . . . . . . . . . . . . 148
Flash-to-Pass . . . . . . . . . . . . . . . . . 177
Four-Wheel-Drive . . . . . . . . . . . . . 143
Front Fog Lamp . . . . . . . . . . . . . . 147
High-Beam On . . . . . . . . . . . . . . . . 147
High/Low Beam Changer . . . . . 176
Lane Departure Warning . . . . . . 144
Low Fuel Warning . . . . . . . . . . . . 146
Safety Belt Reminders . . . . . . . . 137
Security . . . . . . . . . . . . . . . . . . . . . . 147
StabiliTrak
®OFF . . . . . . . . . . . . . 145
Tire Pressure . . . . . . . . . . . . . . . . . 146
Tow/Haul Mode . . . . . . . . . . . . . . . 144
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 146
Traction Off . . . . . . . . . . . . . . . . . . . 145
Locking Rear Axle . . . . . . . . . . . . . . 305
Locks Automatic Door . . . . . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . . 39
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . 40
Power Door . . . . . . . . . . . . . . . . . . . . . 39
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Loss of Control . . . . . . . . . . . . . . . . . 260 Low Fuel Warning Light . . . . . . . . . 146
Low-Profile Tires . . . . . . . . . . . . . . . . 401
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 94
Lumbar Adjustment . . . . . . . . . . . . . . 58 Front Seats . . . . . . . . . . . . . . . . . . . . . 58
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 466
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 460
Maintenance Schedule . . . . . . . . . 454 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 463
Transfer Case . . . . . . . . . . . . . . . . 293
Malfunction Indicator Lamp . . . . . 141
Manual Mode . . . . . . . . . . . . . . . . . . . 289
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 60
Messages Airbag System . . . . . . . . . . . . . . . . 158
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 153
Brake System . . . . . . . . . . . . . . . . 154
Compass . . . . . . . . . . . . . . . . . . . . . 154
Door Ajar . . . . . . . . . . . . . . . . . . . . . 154
Engine Cooling System . . . . . . . 154