radio GMC SIERRA 2008 Workshop Manual

3. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles are not touching
each other. If they are, it could cause an unwanted
ground connection. You would not be able to start
your vehicle, and the bad grounding could damage
the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake rmly on both vehicles involved in
the jump start procedure. Put the automatic
transmission in PARK (P) or a manual transmission
in NEUTRAL before setting the parking brake.
If you have a four-wheel-drive vehicle, be sure the
transfer case is in a drive gear, not in NEUTRAL.
Notice:If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered
by your warranty. Always turn off your radio and
other accessories when jump starting your vehicle.
4. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlets. Turn off the
radio and all the lamps that are not needed. This will
avoid sparks and help save both batteries. And it
could save the radio!5. Open the hood on the other vehicle 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.
The remote negative (−) terminal is a stud located
on the right front passenger side of the engine,
where the negative battery cable attaches.
SeeEngine Compartment Overview on page 5-14
5-47

Dual Tire Operation
When the vehicle is new, or whenever a wheel,
wheel bolt or wheel nut is replaced, check the wheel
nut torque after 100, 1,000 and 6,000 miles
(160, 1 600 and 10 000 km) of driving. For proper
torque and wheel nut tightening information, see
Removing the Spare Tire and Tools on page 5-93.
The outer tire on a dual wheel setup generally wears
faster than the inner tire. Your tires will wear more
evenly and last longer if you rotate the tires periodically,
seeTire Inspection and Rotation on page 5-81. Also see
Scheduled Maintenance (Gasoline Engine) on page 6-4.
{CAUTION:
If you operate your vehicle with a tire that is
badly underinated, the tire can overheat. An
overheated tire can lose air suddenly or catch
re. You or others could be injured. Be sure all
tires (including the spare) are properly inated.
SeeInflation - Tire Pressure on page 5-74, for
information on proper tire ination.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio
and sensor technology to check tire pressure levels. The
TPMS sensors monitor the air pressure in your vehicle’s
tires and transmit tire pressure readings to a receiver
located in the vehicle.
Each tire, including the spare (if provided), should be
checked monthly when cold and inated to the ination
pressure recommended by the vehicle manufacturer
on the vehicle placard or tire ination pressure label.
(If your vehicle has tires of a different size than the size
indicated on the vehicle placard or tire ination pressure
label, you should determine the proper tire ination
pressure for those tires.)
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system (TPMS)
that illuminates a low tire pressure telltale when one or
more of your tires is signicantly under-inated.
Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires as
soon as possible, and inate them to the proper
pressure. Driving on a signicantly under-inated tire
causes the tire to overheat and can lead to tire failure.
Under-ination also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling and
stopping ability.
5-76

Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is
not operating properly. The TPMS malfunction indicator
is combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will ash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists.
When the malfunction indicator is illuminated, the
system may not be able to detect or signal low tire
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 5-78, for
additional information.Federal Communications Commission
(FCC) and Industry and Science
Canada
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with RSS-210 of
Industry and Science Canada. Operation is subject to the
following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
5-77

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 warning light
ashes for about one minute and then stays on for the
remainder of the ignition cycle. A DIC warning message
is also displayed. The low tire warning light and DIC
warning message come on at each ignition cycle until the
problem is corrected. Some of the conditions that can
cause the malfunction light and DIC message 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 TPMS malfunction light and DIC
message should go off once you re-install the road
tire containing the TPMS sensor.
The TPMS sensor matching process was started but
not completed or not completed successfully after
rotating the vehicle’s tires. The DIC message and
TPMS malfunction light should go off once the TPMS
sensor matching process is performed successfully.
See “TPMS Sensor Matching Process” later in this
section.
One or more TPMS sensors are missing or
damaged. The DIC message and the TPMS
malfunction light should go off when the TPMS
sensors are installed and the sensor matching
process is performed successfully. See your
dealer/retailer for service.
Replacement tires or wheels do not match your
vehicle’s original equipment tires or wheels. Tires
and wheels other than those recommended for your
vehicle could prevent the TPMS from functioning
properly. SeeBuying New Tires on page 5-84.
Operating electronic devices or being near facilities
using radio wave frequencies similar to the TPMS
could cause the TPMS sensors to malfunction.
If the TPMS is not functioning it cannot detect or signal
a low tire condition. See your dealer/retailer for service if
the TPMS malfunction light and DIC message comes on
and stays on.
5-79

Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker and a fuse. If the motor overheats due to
heavy snow, etc., the wiper will stop until the motor
cools. If the overload is caused by some electrical
problem and not snow, etc., be sure to get it xed.
Power Windows and Other Power
Options
Circuit breakers protect the power windows and other
power accessories. If the current load is too heavy,
the circuit breaker opens and then closes after a cool
down period, protecting the circuit until the problem
is xed or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible thermal links. This greatly reduces the
chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating.
If you ever have a problem on the road and don’t have
a spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle
that you can get along without – like the radio or
cigarette lighter – and use its fuse, if it is the correct
amperage. Replace it as soon as you can.
5-123

Customer Assistance and Information...............7-2
Customer Satisfaction Procedure......................7-2
Online Owner Center......................................7-4
Customer Assistance for Text
Telephone (TTY) Users................................7-5
Customer Assistance Offices............................7-5
GM Mobility Reimbursement Program................7-6
Roadside Assistance Program..........................7-7
Scheduling Service Appointments.....................7-9
Courtesy Transportation...................................7-9
Collision Damage Repair................................7-11Reporting Safety Defects................................7-14
Reporting Safety Defects to the United
States Government....................................7-14
Reporting Safety Defects to the Canadian
Government..............................................7-15
Reporting Safety Defects to General Motors.....7-15
Service Publications Ordering Information.........7-15
Vehicle Data Recording and Privacy................7-16
Event Data Recorders...................................7-17
OnStar
®......................................................7-18
Navigation System........................................7-18
Radio Frequency Identication (RFID)..............7-18
Section 7 Customer Assistance Information
7-1

Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc.
on the World Wide Web at: www.helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example,
your vehicle uses computer modules to monitor and
control engine and transmission performance, to monitor
the conditions for airbag deployment and deploy
airbags in a crash and, if so equipped, to provide
antilock braking to help the driver control the vehicle.
These modules may store data to help your
dealer/retailer technician service your vehicle. Some
modules may also store data about how you operate the
vehicle, such as rate of fuel consumption or average
speed. These modules may also retain the owner’s
personal preferences, such as radio pre-sets, seat
positions, and temperature settings.
7-16

OnStar®
If your vehicle has OnStar and you subscribe to the
OnStar services, please refer to the OnStar Terms and
Conditions for information on data collection and
use. See alsoOnStar
®System on page 2-65in this
manual for more information.
Navigation System
If your vehicle has a navigation system, use of the
system may result in the storage of destinations,
addresses, telephone numbers, and other trip
information. Refer to the navigation system operating
manual for information on stored data and for deletion
instructions.
Radio Frequency Identication
(RFID)
RFID technology is used in some vehicles for functions
such as tire pressure monitoring and ignition system
security, as well as in connection with conveniences
such as key fobs for remote door locking/unlocking and
starting, and in-vehicle transmitters for garage door
openers. RFID technology in GM vehicles does not use
or record personal information or link with any other
GM system containing personal information.
7-18

A
Accessories and Modications............................ 5-4
Adding a Snow Plow or Similar Equipment.........4-43
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-85
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-122
Adjustable Throttle and Brake Pedal..................2-26
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................3-25, 3-27, 3-28
Airbag
Off Light.....................................................3-39
Passenger Status Indicator...........................3-41
Readiness Light..........................................3-38
Airbag System................................................1-68
What Will You See After an Airbag Inates?....1-75
When Should an Airbag Inate?....................1-73
Where Are the Airbags?...............................1-71
Airbag Systems
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-85
Airbag Off Switch........................................1-76
How Does an Airbag Restrain?......................1-74
Passenger Sensing System...........................1-80
Servicing Your Airbag-Equipped Vehicle..........1-84
What Makes an Airbag Inate?......................1-74
Antenna, Fixed Mast......................................3-126Antenna, XM™ Satellite Radio Antenna
System.....................................................3-126
Antilock Brake System (ABS)............................. 4-4
Antilock Brake, System Warning Light................3-45
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-118
Care of Safety Belts...................................5-115
Chemical Paint Spotting..............................5-120
Cleaning Exterior Lamps/Lenses..................5-116
Fabric/Carpet............................................5-114
Finish Care...............................................5-116
Finish Damage..........................................5-119
Instrument Panel, Vinyl, and Other Plastic
Surfaces
...............................................5-115
Interior Cleaning........................................5-112
Leather....................................................5-114
Sheet Metal Damage..................................5-119
Tires........................................................5-119
Underbody Maintenance.............................5-119
Vehicle Care/Appearance Materials...............5-120
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-115
Windshield and Wiper Blades......................5-117
Appointments, Scheduling Service....................... 7-9
Ashtray.........................................................3-24
Audio System.................................................3-80
Audio Steering Wheel Controls....................3-124
Fixed Mast Antenna...................................3-126
1

Audio System (cont.)
Navigation/Radio System, see Navigation
Manual.................................................3-112
Radio Reception........................................3-125
Rear Seat Audio (RSA)...............................3-122
Setting the Clock.........................................3-81
Theft-Deterrent Feature...............................3-123
XM™ Satellite Radio Antenna System...........3-126
Audio System(s).............................................3-84
Automatic Headlamp System............................3-19
Automatic Transmission
Fluid..................................................5-22, 5-25
Operation...................................................2-28
Auxiliary Roof Mounted Lamp Switch.................3-20
B
Battery..........................................................5-45
Electric Power Management..........................3-22
Run-Down Protection...................................3-23
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-42
System Warning Light..................................3-44
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-22
Bulb Replacement...........................................5-59Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-61
Halogen Bulbs............................................5-59
Headlamp Aiming........................................5-56
Headlamps.................................................5-60
License Plate Lamps....................................5-64
Pickup Box Identication and Fender
Marker Lamps.........................................5-62
Replacement Bulbs......................................5-65
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-62
Buying New Tires...........................................5-84
C
Calibration.............................................2-55, 2-57
California Fuel.................................................. 5-7
California Perchlorate Materials Requirements....... 5-5
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-130
Carbon Monoxide...................2-14, 2-53, 4-31, 4-55
Care of
Safety Belts..............................................5-115
Cargo Lamp...................................................3-22
Cargo Management System.............................2-78
CD, MP3 ............................................3-102, 3-106
Center Console Storage Area...........................2-76
2