2015 GMC SIERRA 1500 AUX
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Black plate (100,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
9-100 Driving and Operating
This has the effect of reducing the
load on the front. However, the front
GAWR, rear GAWR, and Gross
Vehicle Weight Rating (GVWR) must
never be exceeded.
{Warning
On some vehicles that have
certain front mounted equipment,
such as a snow plow, it may be
possible to load the front axle to
the front gross axle weight rating
(GAWR) but not have enough
weight on the rear axle to have
proper braking performance. If the
brakes cannot work properly, you
could have a crash. To help the
brakes work properly when a
snow plow is installed, always
follow the snow plow
manufacturer or installer's
recommendation for rear ballast
to ensure a proper front and rear
weight distribution ratio, even
though the actual front weight(Continued)
Warning (Continued)
may be less than the front
GAWR, and the total vehicle
weight is less than the gross
vehicle weight rating (GVWR).
Maintaining a proper front and
rear weight distribution ratio is
necessary to provide proper
braking performance.
Total vehicle reserve capacity is the
difference between the GVWR and
the weight of the truck with full fuel
and passengers. It is the amount of
weight that can be added to the
vehicle before reaching the GVWR.
Keep in mind that reserve capacity
numbers are intended as a guide
when selecting the amount of
equipment or cargo the truck can
carry. If unsure of the vehicle's front,
rear, or total weight, go to a weigh
station and weigh the vehicle. Your
dealer can also help with this. The total vehicle reserve capacity
for the vehicle can be found in the
lower right corner of the
Certification/Tire label as shown
previously.
See your dealer for additional
advice and information about using
a snow plow on the vehicle. Also,
see
Vehicle Load Limits on
page 9-15.
Emergency Roof Lamp
Provisions
Vehicles with the RPO VYU snow
plow prep package also have an
emergency roof lamp provision
package, RPO TRW. Wiring for the
emergency roof lamp is provided
above the overhead console. See
Auxiliary Roof-Mounted Lamp on
page 6-5 for switch location.
Page 377 of 539
Black plate (10,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
10-10 Vehicle Care
1. Positive (+) Terminal. SeeJump
Starting on page 10-88.
2. Battery on page 10-30.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10-19.
4. Engine Air Cleaner/Filter on
page 10-17.
5. Automatic Transmission Dipstick. See “How to Check
Automatic Transmission Fluid”
under Automatic Transmission
Fluid on page 10-14.
6. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil on page 10-10.
7. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 10-10.
8. Engine Cooling Fan (Out of View). See Cooling System on
page 10-19.
9. Remote Negative (–) Location. See Jump Starting on
page 10-88. 10. Power Steering Fluid
Reservoir. See Power Steering
Fluid (1500 Series) on
page 10-26 orPower Steering
Fluid (2500/3500 Series) on
page 10-26.
11. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-27.
12. Brake Fluid Reservoir. See Brake Fluid on page 10-29.
13. Auxiliary Battery (If Equipped). SeeBattery on page 10-30.
14. Engine Compartment Fuse
Block on page 10-42.
If the vehicle has a diesel engine
and/or an Allison Transmission, see
the Duramax diesel supplement.Engine Oil
For diesel engine vehicles, see
“Engine Oil” in the Duramax diesel
supplement.
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-13.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Page 414 of 539
Black plate (47,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Vehicle Care 10-47
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Number Usage
1 Accessory Power Outlet 2
2 SEO Retained Accessory Power
3 Universal Garage Door Opener/Inside
Rearview Mirror
6 Body Control Module 3
7 Body Control Module 5
8 Driver Window Switch/Mirror Switch
9 Spare
10 Accessory Power Outlet Retained
Accessory Power
11 Accessory Power Outlet Battery Number Usage
12 Accessory Power Outlet 1/Cigarette
Lighter
13 Discrete Logic Ignition Switch
14 Switch Backlighting
17 Body Control Module 1
19 Spare
20 Spare
22 Heater, Ventilation, and Air Conditioning/
Auxiliary Heater,
Ventilation and Air
Conditioning Ignition
23 Instrument Cluster Ignition/Sensing
Diagnostic Module
Ignition
24 Spare
25 Data Link Connector/ Driver Seat Module Number Usage
26 Passive Entry Passive Start/Heater,
Ventilation, and Air
Conditioning
27 Spare
28 Spare
29 Park Enable/ Electrically Adjustable
Pedals
30 SEO
31 Accessory/Run Crank
32 Heated Steering Wheel
33 Spare
34 Instrument Cluster
36 Spare
37 Spare
40 Left Doors
41 Driver Power Seat
Page 459 of 539
Black plate (92,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
10-92 Vehicle Care
6.0L
‐ To the generator bracket, on
the vehicle with the dead
battery.6.6L
‐ To the negative (−) post on
the auxiliary battery, on the
vehicle with the dead battery.
11. Start the vehicle with the good battery and run the engine for a
while.
12. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
{Caution
If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty.
Always connect and remove the
jumper cables in the correct order,
making sure that the cables do
not touch each other or other
metal.
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
Page 527 of 539
Black plate (2,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
i-2 INDEX
AutomaticDimming Mirrors . . . . . . . . . . . . . . 2-16
Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Headlamp System . . . . . . . . . . . . . 6-3
Transmission . . . . . . . . . . . . . . . . . 9-33
Transmission Fluid . . . . . . . . . 10-14
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 9-36
Shift Lock ControlFunction Check . . . . . . . . . . . 10-35
Auxiliary
Roof Mounted Lamp . . . . . . . . . . . 6-5
Auxiliary Jack . . . . . . . . . . . . . . . . . . 7-21
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-32
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-33
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-30 Jump Starting . . . . . . . . . . . . . . . 10-88
Load Management . . . . . . . . . . . . . 6-8
Power Protection . . . . . . . . . . . . . . 6-9
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-35
Blade Replacement, Wiper . . . 10-36
Blind Spot Mirrors . . . . . . . . . . . . . 2-16 Bluetooth
Overview . . . . . . . . 7-29, 7-31, 7-35, 7-40, 7-44
Bluetooth Audio . . . . . . . . . . . . . . . 7-21
Brake
Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 9-24
System Warning Light . . . . . . . . 5-24
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-28
Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-47
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-29
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-48
System Messages . . . . . . . . . . . . 5-36
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-23
Bulb Replacement . . . . . . . . . . . . 10-40 Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . 10-40
Fog Lamps . . . . . . . . . . . . . 6-5, 10-38
Halogen Bulbs . . . . . . . . . . . . . . 10-37
Headlamp Aiming . . . . . . . . . . . 10-37
Headlamps . . . . . . . . . . . . . . . . . 10-37
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-38 Bulb Replacement (cont'd)
License Plate Lamps . . . . . . . 10-40
Taillamps . . . . . . . . . . . . . . . . . . . 10-39
Taillamps, Turn Signal,
Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-39
Buying New Tires . . . . . . . . . . . . . 10-69
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-5
California Fuel Requirements . . . . . . . . . . . 9-65
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Canadian Vehicle Owners . . . . . . . . iii
Capacities and
Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-32
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Winter Driving . . . . . . . . . . . . . . . . 9-12
Card Reader SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 4-4
Page 531 of 539
Black plate (6,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
i-6 INDEX
Glass Replacement . . . . . . . . . . . 10-37
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-2
GM Mobility ReimbursementProgram . . . . . . . . . . . . . . . . . . . . . . 13-5
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-37
Hazard Warning Flashers . . . . . . . 6-4
Head Restraints . . . . . . . . . . . . . . . . 3-2
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-37
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-3
Bulb Replacement . . . . . . . . . . 10-37
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-38
High-Beam On Light . . . . . . . . . . 5-29
High/Low Beam Changer . . . . . . 6-2
Lamps On Reminder . . . . . . . . . 5-29
Heated
Steering Wheel . . . . . . . . . . . . . . . . 5-4
Heated and Cooled Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Heated Mirrors . . . . . . . . . . . . . . . . . 2-16
Heater
Engine Coolant . . . . . . . . . . . . . . . 9-28
Heating and Air Conditioning . . . . . . . . . . . . . . . 8-1, 8-3
High-Beam On Light . . . . . . . . . . . 5-29
High-Speed Operation . . . . . . . . 10-61
Hill and Mountain Roads . . . . . . . 9-12
Hill Descent Control (HDC) . . . . 9-52
Hill Descent Control Light . . . . . . 5-26
Hill Start Assist (HSA) . . . . . . . . . 9-49
Home Page . . . . . . . . . . . . . . . . . . . . . 7-5
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-13
I
Idle System
Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
Ignition Positions . . . . . . . . . . . . . . 9-24
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 10-35
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-12
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 5-26 Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . 3-39
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Infotainment System . . . . . . . . . . 13-15
Instrument Cluster . . . . . . . . . . . . . 5-10
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . 4-1
Interior Rearview Mirrors . . . . . . . 2-17
Internet Radio Pandora . . . . . . . . . . . . . . . . . . . . . . 7-12
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jack
Auxiliary . . . . . . . . . . . . . . . . . . . . . . 7-21
Jump Starting . . . . . . . . . . . . . . . . . 10-88
K
Key and Lock Messages . . . . . . . 5-39
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Page 532 of 539
Black plate (7,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
INDEX i-7
L
Labeling, Tire Sidewall . . . . . . . . 10-53
LampsAuxiliary RoofMounted Lamp . . . . . . . . . . . . . . . 6-5
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 6-2
License Plate . . . . . . . . . . . . . . . 10-40
Malfunction Indicator . . . . . . . . . 5-22
Messages . . . . . . . . . . . . . . . . . . . . 5-39
On Reminder . . . . . . . . . . . . . . . . . 5-29
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-7
Taillamps . . . . . . . . . . . . . . . . . . . 10-39
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . 9-62
Lane Departure Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-19
Lap-Shoulder Belt . . . . . . . . . . . . . 3-14
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-57 LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . 3-45
LED Lighting . . . . . . . . . . . . . . . . . . 10-37
Light Hill Decent Control . . . . . . . . . . . 5-26
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Illumination Control . . . . . . . . . . . . 6-6
LED . . . . . . . . . . . . . . . . . . . . . . . . 10-37
Lights
Airbag On-Off . . . . . . . . . . . . . . . . . 5-18
Airbag Readiness . . . . . . . . . . . . . 5-18
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-25
Brake System Warning . . . . . . . 5-24
Charging System . . . . . . . . . . . . . 5-21
Cruise Control . . . . . . . . . . . . . . . . 5-29
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Four-Wheel-Drive . . . . . . . . . . . . . 5-25
Front Fog Lamp . . . . . . . . . . . . . . 5-29
High-Beam On . . . . . . . . . . . . . . . . 5-29
High/Low Beam Changer . . . . . . 6-2
Lane Departure Warning . . . . . . 5-26
Low Fuel Warning . . . . . . . . . . . . 5-28
Safety Belt Reminders . . . . . . . . 5-17 Lights (cont'd)
Security . . . . . . . . . . . . . . . . . . . . . . 5-28
StabiliTrak®OFF . . . . . . . . . . . . . 5-27
Tire Pressure . . . . . . . . . . . . . . . . . 5-28
Tow/Haul Mode . . . . . . . . . . . . . . . 5-26
Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . 5-27
Traction Off . . . . . . . . . . . . . . . . . . . 5-26
Locking Rear Axle . . . . . . . . . . . . . 9-52
Locks
Automatic Door . . . . . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . . 2-8
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Lockout Protection . . . . . . . . . . . . . 2-9
Power Door . . . . . . . . . . . . . . . . . . . . 2-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Low Fuel Warning Light . . . . . . . . 5-28
Low-Profile Tires . . . . . . . . . . . . . . 10-52
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-45
Lumbar Adjustment . . . . . . . . . . . . . 3-4
Front Seats . . . . . . . . . . . . . . . . . . . . 3-4