trailer GMC SIERRA 1500 2013 Repair Manual

Black plate (22,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-22 Vehicle Care
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
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.
If the warning continues, pull over,
stop, and park the vehicle
right away.
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. Also, see“Overheated
Engine Protection Operating Mode”
later in this section.
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 km (mi) and/or towing a
trailer in the overheat protection
mode should be avoided.
Notice:
After driving in the
overheated engine protection
operating mode, to avoid engine
damage, allow the engine to cool
before attempting any repair. The
engine oil will be severely
degraded. Repair the cause of
coolant loss, change the oil and
reset the oil life system. See
Engine Oil on page 10‑6.
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.
This fan noise may also be heard
when starting the engine. It will go
away as the fan clutch partially
disengages.
If the vehicle has electric cooling
fans, the fans may be heard
spinning at low speed during most
everyday driving. The fans may turn
off if no cooling is required. Under
heavy vehicle loading, trailer towing,
high outside temperatures,

Black plate (40,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-40 Vehicle Care
Lift the cover to access the fuse
block.
Notice:Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.
To remove fuses, hold the end of
the fuse between your thumb and
index finger and pull straight out.
Fuses Usage
1 Right Trailer Stop/ Turn Lamp Fuses
Usage
2 Electronic Suspension
Control, Automatic
Level Control
Exhaust
3 Left Trailer Stop/ Turn Lamp

Black plate (41,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-41
FusesUsage
4 Engine Controls
5 Engine Control Module, Throttle
Control
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensor
9 Antilock Brakes System 2
10 Trailer Back-up Lamps
11 Driver Side Low-Beam
Headlamp
12 Engine Control Module (Battery)
13 Fuel Injectors, Ignition Coils
(Right Side) Fuses
Usage
14 Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16 Passenger Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Not Used
23 Not Used
24 Fuel Injectors, Ignition Coils
(Left Side) Fuses
Usage
25 Trailer Park Lamps
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps (DRL)
32 Driver Side High-Beam
Headlamp
33 Daytime Running Lamps 2
34 Sunroof
35 Key Ignition System, Theft
Deterrent System

Black plate (42,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-42 Vehicle Care
FusesUsage
36 Windshield Wiper
37 SEO B2 Upfitter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplifier
42 Audio System
43 Miscellaneous (Ignition), Cruise
Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off Fuses
Usage
48 Auxiliary Climate Control (Ignition)
49 Center High-Mounted
Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter Usage (Battery)
53 Accessory Power Outlet
54 SEO Upfitter Usage
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary
Fuel Pump
(Ignition) J-Case
Fuses Usage
57 Cooling Fan 1
58 Not Used
59 Heavy Duty Antilock Brake
System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
66 Not Used
67 Transfer Case

Black plate (43,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-43
J-CaseFuses Usage
68 Stud 1 (Trailer Connector Battery
Power) (Optional -
40A Fuse
Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Not Used
72 Left Bussed Electrical Center 2
Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control Relays Usage
HDLP
LO/HID Low-Beam
Headlamp
FOG LAMP Front Fog Lamps
A/C
CMPRSR Air Conditioning
Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR
DEFOG Rear Defogger
RUN/CRNK Switched PowerInstrument Panel Fuse
Block
The instrument panel fuse block
access door is located on the driver
side edge of the instrument panel.
Pull off the cover to access the fuse
block.

Black plate (87,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-87
Towing
Towing the Vehicle
Notice:Incorrectly towing a
disabled vehicle may cause
damage. The damage would not
be covered by the vehicle
warranty.
Have the vehicle towed on a flatbed
car carrier or a wheel lift tow truck.
If a wheel lift tow truck is used, the
drive wheels cannot contact the
road while the vehicle is being
towed. A wheel dolly must be used
to lift all drive wheels off the ground.
Consult your dealer or a
professional towing service if the
disabled vehicle must be towed.
To tow the vehicle behind another
vehicle for recreational purposes,
such as behind a motor home, see
“Recreational Vehicle Towing” in this
section.
Recreational Vehicle
Towing
Recreational vehicle towing means
towing the vehicle behind another
vehicle, such as a motor home. The
two most common types of
recreational vehicle towing are
known as dinghy towing and dolly
towing. Dinghy towing is towing the
vehicle with all four wheels on the
ground. Dolly towing is towing the
vehicle with two wheels on the
ground and two wheels up on a
device known as a dolly.
Here are some important things to
consider before recreational vehicle
towing:
.What is the towing capacity of
the towing vehicle? Be sure to
read the tow vehicle
manufacturer's
recommendations.
.What is the distance that will be
travelled? Some vehicles have
restrictions on how far and how
long they can tow.
.Is the proper towing equipment
going to be used? See your
dealer or trailering professional
for additional advice and
equipment recommendations.
.Is the vehicle ready to be
towed? Just as preparing the
vehicle for a long trip, make sure
the vehicle is prepared to be
towed.
Dinghy Towing
Two-Wheel-Drive Vehicles

Black plate (2,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
11-2 Service and Maintenance
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy,
and reduces vehicle emissions.
Because of the way people use
vehicles, maintenance needs vary.
There may need to be more
frequent checks and services. The
Additional Required Services -
Normal are for vehicles that:
.Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. SeeVehicle Load Limits
on page 9‑15.
.Are driven on reasonable road
surfaces within legal driving
limits.
.Use the recommended fuel. See
Recommended Fuel on
page 9‑66. Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
.Mainly driven in heavy city traffic
in hot weather.
.Mainly driven in hilly or
mountainous terrain.
.Frequently towing a trailer.
.Used for high speed or
competitive driving.
.Used for taxi, police, or delivery
service.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.
{WARNING
Performing maintenance work can
be dangerous and can cause
serious injury. Perform
maintenance work only if the
required information, proper tools,
and equipment are available.
If they are not, see your dealer to
have a trained technician do the
work. See
Doing Your Own
Service Work on page 10‑3.

Black plate (10,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
13-10 Customer Information
*These services are not provided for
U.S. or Canada residents. All
services provided in the U.S. and
Canada are at the owner's expense
and will be reimbursed by Roadside
Assistance.
Services Not Included in Roadside
Assistance
Roadside Assistance does not
cover or reimburse services for the
following:
.Events caused by fraud or bad
faith by the driver.
.Vehicle immobilization situations
due to a major force or
unforeseen circumstances, such
as natural phenomena of an
extraordinary nature,
earthquakes, volcanic eruptions,
and other cyclonic storms.
.Vehicle immobilization situations
arising from car accidents
caused by the driver of the
vehicle or third parties. This
means any occurrence thatcauses physical injury to the
occupants and/or the vehicle
caused by external forces.
.Acts of terrorism, riot or uproar,
armed forces or police actions
which prevent timely delivery of
assistance services.
.Food service, beverages,
telephone calls, or other extra
costs. Accommodation costs
apply only to Mexico per the
terms and conditions of the
Roadside Assistance program.
.Any damage to the vehicle
without intent, derived from the
services provided.
.Cost of towing a trailer when
choosing a GMC dealer that is
nearest to the temporary storage
facility for the disabled vehicle.
.Cost of all maneuvers required
to access the vehicle when it is
not available to be towed.
.Cost of fuel provided.
Routine vehicle repair costs are not
covered by the Roadside
Assistance program. For more
information, see your new vehicle
warranty.
Contacting Roadside Assistance
Roadside Assistance services are of
no cost to you and available
24 hours a day, 365 days a year.
Costs are only incurred in situations
that exceed the limits of the
program, some of which are listed
previously in this section.
To contact Roadside Assistance by
phone, use the following numbers:
Mexico
01-800-466-0801
United States
1-866-466-8902
Canada
1-800-268-6800
E-mail
[email protected]

Black plate (8,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
i-8 INDEX
Messages (cont'd)Engine Cooling System . . . . . . . 5-39
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-40
Engine Power . . . . . . . . . . . . . . . . 5-40
Fuel System . . . . . . . . . . . . . . . . . . 5-41
Key and Lock . . . . . . . . . . . . . . . . . 5-41
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
Object Detection System . . . . . 5-41
Ride Control System . . . . . . . . . . 5-42
Security . . . . . . . . . . . . . . . . . . . . . . 5-43
Starting the Vehicle . . . . . . . . . . . 5-43
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Transmission . . . . . . . . . . . . . . . . . 5-44
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-37
Vehicle Reminder . . . . . . . . . . . . . 5-45
Washer Fluid . . . . . . . . . . . . . . . . . 5-46
Mirrors Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . 2-17
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-13
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-15
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-16
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-13 Mirrors (cont'd)
Manual Rearview . . . . . . . . . . . . . 2-16
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 2-16
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Trailer Tow . . . . . . . . . . . . . . . . . . . . 2-13
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-57
N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 14-2
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . 13-20
New Vehicle Break-In . . . . . . . . . . 9-23
Noise Control System . . . . . . . . 10-31
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-41
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-12 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-5
Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-4 Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil Life System . . . . . . . 10-9
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-14
Messages . . . . . . . . . . . . . . . . . . . . 5-40
Pressure Light . . . . . . . . . . . . . . . . 5-26
Older Children, Restraints . . . . . 3-38
Online Owner Center . . . . . . . . . . 13-6
OnStar
®
System, In Brief . . . . . . . . . . . . . . 1-33
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . 14-5
OnStar
®Connections . . . . . . . . . . 14-3
OnStar®Diagnostics . . . . . . . . . . . 14-5
OnStar®Emergency . . . . . . . . . . . 14-2
OnStar®Navigation . . . . . . . . . . . . 14-2
OnStar®Overview . . . . . . . . . . . . . 14-1
OnStar®Security . . . . . . . . . . . . . . 14-2
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Ordering Service Publications . . . . . . . . 13-16
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Black plate (12,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
i-12 INDEX
Tires (cont'd)Dual Rotation . . . . . . . . . . . . . . . 10-63
Full-Size Spare . . . . . . . . . . . . . 10-82
If a Tire Goes Flat . . . . . . . . . . 10-70
Inflation Monitor System . . . . 10-58
Inspection . . . . . . . . . . . . . . . . . . 10-61
Messages . . . . . . . . . . . . . . . . . . . . 5-43
Pressure . . . . . . . . . . . . . . . . . . . . 10-56
Pressure Light . . . . . . . . . . . . . . . . 5-26
Pressure Monitor System . . . 10-57
Rotation . . . . . . . . . . . . . . . . . . . . 10-61
Sidewall Labeling . . . . . . . . . . . 10-48
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-52
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-67
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-68
Wheel Replacement . . . . . . . . 10-69
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-64
Winter . . . . . . . . . . . . . . . . . . . . . . 10-48
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-37
Tow/Haul Mode Light . . . . . . . . . . 5-25 Towing
Driving Characteristics . . . . . . . . 9-71
Equipment . . . . . . . . . . . . . . . . . . . . 9-89
General Information . . . . . . . . . . 9-71
Recreational Vehicle . . . . . . . . 10-87
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-73
Trailer Sway
Control (TSC) . . . . . . . . . . . . . 9-100
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-87
Traction Control System (TCS)/
StabiliTrak
®Light . . . . . . . . . . . . 5-26
Trailer Sway Control (TSC) . . . . . . . . 9-100
Tow Mirrors . . . . . . . . . . . . . . . . . . . 2-13
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-73
Transfer Case . . . . . . . . . . . . . . . . . 9-38
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 9-32
Fluid, Automatic . . . . . 10-10, 10-12
Messages . . . . . . . . . . . . . . . . . . . . 5-44
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . 13-13
Trip Odometer . . . . . . . . . . . . . . . . . 5-12
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . 9-21 Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Turn Signal Bulb Replacement . . . . . . . . . . 10-36
U
Ultrasonic Parking Assist . . . . . . 9-59
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-67
Universal Remote System . . . . . 5-54 Operation . . . . . . . . . . . . . . . . . . . . . 5-58
Programming . . . . . . . . . . . . . . . . . 5-54
Using This Manual . . . . . . . . . . . . . . . . iii
V
Vehicle
Alarm System . . . . . . . . . . . . . . . . 2-10
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-15
Messages . . . . . . . . . . . . . . . . . . . . 5-37
Personalization . . . . . . . . . . . . . . . 5-46
Reminder Messages . . . . . . . . . . 5-45