2013 GMC SIERRA warning light

Black plate (58,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-58 Vehicle Care
pressure as intended. TPMS
malfunctions may occur for a variety
of reasons, including the installation
of replacement or alternate tires or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
SeeTire Pressure Monitor
Operation on page 10‑58.
Federal Communications
Commission (FCC) Rules and
with Industry Canada
Standards
See Radio Frequency Statement on
page 13‑20 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
Rules and with Industry Canada
Standards RSS-GEN/210/220/310.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmit the tire
pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
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 on page 9‑15.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. If the vehicle has DIC
buttons, tire pressure levels can be
viewed. For additional information
and details about the DIC operation
and displays, see Driver Information
Center (DIC) on page 5‑28 andTire
Messages on page 5‑43.
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
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.

Black plate (59,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-59
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. SeeVehicle Load
Limits on page 9‑15, for an example
of the Tire and Loading Information
label and its location. Also see Tire
Pressure on page 10‑55.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
on page 10‑61, Tire Rotation on
page 10‑61 andTires on
page 10‑46.
Notice: Tire sealant materials are
not all the same. A non-approved
tire sealant could damage the
TPMS sensors. TPMS sensor
damage caused by using an
incorrect tire sealant is not
covered by the vehicle warranty.
Always use only the
GM-approved tire sealant
available through your dealer or
included in the vehicle.TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light
flashes for about one minute and
then stays on for the remainder of
the ignition cycle. A DIC warning
message also displays. The
malfunction light and DIC warning
message come on at each ignition
cycle until the problem is corrected.
Some of the conditions that can
cause these to come on are:
.One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and the DIC message
should go off after the road tire
is replaced and the sensor
matching process is performed
successfully. See "TPMS Sensor
Matching Process" later in this
section.
.The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
"TPMS Sensor Matching
Process" later in this section.
.One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. See
your dealer for service.
.Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires on page 10‑65.

Black plate (63,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-63
Loading Information label after
the tires have been rotated. See
Tire Pressure on page 10‑55
andVehicle Load Limits on
page 9‑15.
Check that all wheel nuts are
properly tightened. See “Wheel
Nut Torque” underCapacities
and Specifications on
page 12‑2.
{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.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or
tire rotation to prevent corrosion
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
Reset the Tire Pressure Monitor
System (TPMS), if the vehicle
has one. See Tire Pressure
Monitor Operation on
page 10‑58.
Check that the spare tire, if the
vehicle has one, is stored
properly. Push, pull, and then try
to rotate or turn the tire. If it
moves, tighten the cable. See
“Storing a Flat or Spare Tire and
Tools” underTire Changing on
page 10‑72.Dual Tire Rotation
When the vehicle is new,
or whenever a wheel, wheel bolt,
or wheel nut is replaced, check the
wheel nut torque after
160, 1 600, and 10 000 km (100,
1,000, and 6,000 mi) of driving. For
proper torque and wheel nut
tightening information, see
“Removing the Flat Tire and
Installing the Spare Tire” underTire
Changing on page 10‑72.
The outer tire on a dual wheel setup
generally wears faster than the
inner tire. Tires last longer and wear
more evenly if they are rotated. See
Tire Inspection on page 10‑61 and
Tire Rotation on page 10‑61. Also
see Maintenance Schedule on
page 11‑3.

Black plate (64,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-64 Vehicle Care
{WARNING
If the vehicle is operated with a
tire that is underinflated, the tire
can overheat. An overheated tire
can lose air suddenly or catch
fire. You or others could be
injured. Properly inflate all tires,
including the spare.
See Tire Pressure on page 10‑55,
for information on proper tire
inflation.
When It Is Time for New
Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. Some
commercial truck tires may not have
treadwear indicators. See Tire
Inspection on page 10‑61 andTire
Rotation on page 10‑61 for
additional information.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six
years, regardless of tread wear. The
tire manufacturer date is the last
four digits of the DOT Tire
Identification Number (TIN) which is
molded into one side of the tire
sidewall. The first two digits
represent the week (01-52) and the
last two digits, the year. For
example, the third week of the year
2010 would have a four-digit DOT
date of 0310.
Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free
of grease, gasoline or other
substances that can deteriorate
rubber.

Black plate (67,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-67
{WARNING
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires on
page 10‑65 andAccessories and
Modifications on page 10‑3.
Uniform Tire Quality
Grading
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire

Black plate (84,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
10-84 Vehicle Care
5. Open the hood on the othervehicle and locate the
positive (+) and negative (−)
terminal locations on that
vehicle.
The positive (+) terminal, is
located under a red plastic cover
at the positive battery post. To
uncover the positive (+) terminal,
open the red plastic cover.If your vehicle has a gasoline
engine, the remote negative (-)
terminal is a stud located on the
right front of the engine, where
the negative battery cable
attaches.
If your vehicle has a diesel
engine, the remote negative (-)
terminal is the negative (-) post
on the auxiliary battery on the
driver side of the engine
compartment.
For more information on the
location of the remote
positive (+) and remote
negative (−) terminals, see
Engine Compartment Overview
on page 10‑5
{WARNING
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing and tools away from any
underhood electric fan.
{WARNING
Using an open flame near a
battery can cause battery gas to
explode. People have been hurt
doing this, and some have been
blinded. Use a flashlight if you
need more light.
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
amount of fluid is there. If it is low,
add water to take care of that
first. If you do not, explosive gas
could be present.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.

Black plate (91,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Vehicle Care 10-91
Four‐Wheel‐Drive Vehicles
Use the following procedure to dolly
tow a four-wheel-drive vehicle from
the rear:
1. Attach the dolly to the towvehicle following the dolly
manufacturer's instructions.
2. Drive the rear wheels onto the dolly.
3. Firmly set the parking brake. See Parking Brake on
page 9‑51.
4. Put the transmission in P (Park).
5. Secure the vehicle to the dolly following the manufacturer's
instructions.
6. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight position.{WARNING
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). The driver or others
could be injured. Make sure the
parking brake is firmly set before
the transfer case is shifted to
N (Neutral).
7. Shift the transfer case to N (Neutral). See “Shifting into
Neutral” underFour-Wheel Drive
on page 9‑38 for the proper
procedure to select the neutral
position for the vehicle.
8. Turn the ignition to LOCK/OFF.
After towing, see “Shifting Out of
Neutral” underFour-Wheel Drive on
page 9‑38.
Appearance Care
Exterior Care
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Notice: Do not use
petroleum-based, acidic,
or abrasive cleaning agents as
they can damage the vehicle's
paint, metal, or plastic parts.
If damage occurs, it would not be
covered by the vehicle's warranty.
Approved cleaning products can
be obtained from your dealer.
Follow all manufacturer
directions regarding correct
product usage, necessary safety
precautions, and appropriate
disposal of any vehicle care
product.

Black plate (1,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-27
Active Fuel Management
®. . . . . 9-30
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 9-101
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . 9-101
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-23
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-15
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-10
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . 3-37
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-26
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-31
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-26 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-26
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-24
Where Are the Airbags? . . . . . . 3-22
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-35
Light On-Off . . . . . . . . . . . . . . . . . . 5-18
On-Off Light . . . . . . . . . . . . . . . . . . 5-18
On-Off Switch . . . . . . . . . . . . . . . . 3-28
Passenger Status Indicator . . . 5-19
Readiness Light . . . . . . . . . . . . . . 5-17
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-35
System Check . . . . . . . . . . . . . . . . 3-20
Alarm
Vehicle Security . . . . . . . . . . . . . . 2-10
AM-FM Radio . . . . . . . . . . . . . . . . . . 7-10
Antenna Satellite Radio . . . . . . . . . . . . . . . . 7-16
Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-50
Warning Light . . . . . . . . . . . . . . . . . 5-24 Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-91
Interior . . . . . . . . . . . . . . . . . . . . . . 10-94
Armrest Storage . . . . . . . . . . . . . . . . 4-1
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 5-10
Assistance Program, Roadside . . . . . . . . . . . . . . 13-7, 13-11
Audio Players . . . . . . . . . . . . . . . . . 7-17 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-23
Audio System
Fixed Mast Antenna . . . . . . . . . . 7-16
Radio Reception . . . . . . . . . . . . . . 7-15
Rear Seat (RSA) . . . . . . . . . . . . . 7-47
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic
Door Locks . . . . . . . . . . . . . . . . . . . . 2-7
Headlamp System . . . . . . . . . . . . . 6-3
Transmission . . . . . . . . . . . . . . . . . 9-32
Transmission Fluid . . 10-10, 10-12
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 9-36
Shift Lock ControlFunction Check . . . . . . . . . . . 10-32