2005 GMC SIERRA roof

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-9
Safety Belts
.............................................1-11
Child Restraints
.......................................1-33
Airbag System
.........................................1-66
Restraint System Check
............................1-82
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-21
Mirrors
....................................................2-55
OnStar
®System
......................................2-64
HomeLink®Transmitter
.............................2-66
Storage Areas
.........................................2-70
Sunroof
..................................................2-73
Vehicle Personalization
.............................2-74
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-21
Warning Lights, Gages, and Indicators
........3-31
Driver Information Center (DIC)
..................3-50
Audio System(s)
.......................................3-69Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
........ 4-2
Towing
...................................................4-62
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-4
Fuel
......................................................... 5-6
Checking Things Under the Hood
...............5-12
Rear Axle
...............................................5-58
Four-Wheel Drive
.....................................5-58
Front Axle
...............................................5-60
Noise Control System
...............................5-61
Bulb Replacement
....................................5-62
Windshield Wiper Blade Replacement
.........5-72
Tires
......................................................5-72
Appearance Care
...................................5-112
Vehicle Identication
...............................5-120
Electrical System
....................................5-121
Capacities and Specications
...................5-130
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2005 GMC Sierra Owner ManualM

Outside Power Mirrors...................................2-62
Outside Power Camper-Type Mirror.................2-62
Outside Power Foldaway Mirrors.....................2-62
Outside Automatic Dimming Mirror..................2-63
Outside Curb View Assist Mirrors....................2-63
Outside Convex Mirror...................................2-64
Outside Heated Mirrors..................................2-64
OnStar
®System.............................................2-64
HomeLink®Transmitter...................................2-66
Programming the HomeLink®Transmitter.........2-67Storage Areas................................................2-70
Glove Box...................................................2-70
Cupholder(s)................................................2-70
Coinholder(s)................................................2-70
Front Storage Area.......................................2-71
Center Console Storage Area.........................2-71
Tonneau Cover............................................2-71
Sunroof.........................................................2-73
Vehicle Personalization...................................2-74
Memory Seat...............................................2-74
Section 2 Features and Controls
2-2

4. To add cargo to the
box, remove all bows
and the back rail
and stow them safely.
To clean the tonneau cover, use mild soap and water. If
necessary, use a soft bristle brush to remove dirt
trapped in the grain of the material.
Sunroof
The vehicle may be equipped with a power sliding
sunroof. To open or close your sunroof, the ignition must
be on or Retained Accessory Power (RAP) must be
active. SeeRetained Accessory Power (RAP) on
page 2-23for more information.Press the rear side of the
sunroof control, located on
the overhead console,
to open the sunroof.
To close the sunroof, press and hold the front of the
control. The control must be held until the glass
stops moving, so that the sunroof will be fully seated.
With the sunroof closed, press the rear of the control to
open the sunroof to the vent position.
The sunroof is also has a roller sunscreen that can be
used to block the rays of the sun. The roller sunscreen
can be manually operated with the sunroof in an
open or close position. To open the sunscreen, press
up to unlatch it and roll it back. To close, pull it forward
and latch it to the close position.
Do not leave the sunroof open for long periods of time
as debris can collect in the tracks.
2-73

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Cruise Control..............................................3-10
Headlamps..................................................3-13
Headlamps on Reminder................................3-14
Daytime Running Lamps (DRL).......................3-14
Automatic Headlamp System..........................3-15
Fog Lamps..................................................3-16
Auxiliary Roof Mounted Lamp.........................3-17
Instrument Panel Brightness...........................3-17
Dome Lamps...............................................3-17
Dome Lamp Override....................................3-18
Entry Lighting...............................................3-18
Exit Lighting.................................................3-18
Front Reading Lamps....................................3-18
Cargo Lamp.................................................3-19
Accessory Power Outlets...............................3-19
Ashtrays and Cigarette Lighter........................3-20Climate Controls............................................3-21
Climate Control System.................................3-21
Dual Climate Control System..........................3-22
Dual Automatic Climate Control System...........3-25
Outlet Adjustment.........................................3-30
Warning Lights, Gages, and Indicators............3-31
Instrument Panel Cluster................................3-32
Speedometer and Odometer...........................3-33
Trip Odometer..............................................3-33
Tachometer.................................................3-33
Safety Belt Reminder Light.............................3-33
Airbag Readiness Light..................................3-34
Airbag Off Light............................................3-34
Passenger Airbag Status Indicator...................3-36
Battery Warning Light....................................3-38
Voltmeter Gage............................................3-38
Up-Shift Light (Manual Transmission)...............3-39
Brake System Warning Light..........................3-39
Anti-Lock Brake System Warning Light.............3-41
Traction Off Light..........................................3-41
Engine Coolant Temperature Gage..................3-42
Transmission Temperature Gage.....................3-43
Malfunction Indicator Lamp.............................3-44
Oil Pressure Gage........................................3-47
Security Light...............................................3-48
Cruise Control Light......................................3-48
Highbeam On Light.......................................3-48
Section 3 Instrument Panel
3-1

The main components of your instrument panel are the following:
A. Dome Lamp Button. SeeDome Lamps on page 3-17.
B. Headlamp Controls. SeeHeadlamps on page 3-13.
C. Air Outlets. SeeOutlet Adjustment on page 3-30.
D. Automatic Transfer Case/Electronic Transfer
Case/Traction Assist System (TAS). SeeFour-Wheel
Drive on page 2-37.
E. Multifunction Lever. SeeTurn Signal/Multifunction
Lever on page 3-7.
F. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-32.
G. Gearshift Lever (Automatic Transmission). See
Automatic Transmission Operation on page 2-26.
H. Tow/Haul Selector and Overdrive Disable (Allison
Transmission
®Only) Button (If Equipped). See
Tow/Haul Mode on page 2-29.
I. Audio System. SeeAudio System(s) on page 3-69.
J. Climate Control System. SeeClimate Control
System on page 3-21,Dual Climate Control System
on page 3-22andDual Automatic Climate Control
System on page 3-25.
K. Instrument Panel Fuse Block.Instrument Panel Fuse
Block on page 5-122.
L. Cargo Lamp Button. SeeCargo Lamp on page 3-19.
M. Hood Release. SeeHood Release on page 5-13.N. Steering Wheel Control Buttons (If Equipped). See
Driver Information Center (DIC) on page 3-50.
O. Center Instrument Panel Block. SeeCenter
Instrument Panel Fuse Block on page 5-124.
P. Parking Brake Release. SeeParking Brake on
page 2-48.
Q. Tilt Wheel Lever. SeeTilt Wheel on page 3-7.
R. Lighter and Accessory Power Outlet. SeeAccessory
Power Outlets on page 3-19, andAshtrays and
Cigarette Lighter on page 3-20.
S. Storage Area. SeeFront Storage Area on page 2-71.
T. Ashtray. SeeAshtrays and Cigarette Lighter on
page 3-20.
U. Manual Selectable Ride Control (If Equipped).
SeeManual Selectable Ride on page 4-10.
V. 4-Wheel Steer Button (If Equipped). See
QUADRASTEER™ on page 4-14.
W. Passenger Airbag Off Switch (If Equipped).
SeeAirbag Off Switch on page 1-73.
X. Auxiliary Roof Mounted Lamp Button (If Equipped).
SeeAuxiliary Roof Mounted Lamp on page 3-17.
Y. Glove Box. SeeGlove Box on page 2-70.
3-5

;(Parking Lamps):Turning the control to this
position turns on the parking lamps, together with the
following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
Roof Marker Lamps (If Equipped)
5(Headlamps):Turning the control to this position
turns on the headlamps, together with the previously
listed lamps and lights.
You can switch your headlamps from high to low-beam
by pushing the turn signal/high-beam lever towards
the instrument panel.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will icker on and
off. Have your headlamp wiring checked right away if
this happens.
Headlamps on Reminder
A reminder chime will sound when your headlamps or
parking lamps are manually turned on and your
ignition is off, in LOCK, ACCESSORY, or your door is
open. To disable the chime, turn the light off then
back on.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
rst sold in Canada.
The DRL system will come on when the following
conditions are met:
The ignition is on
The exterior lamps control is AUTO
The automatic transmission is not in PARK (P)
The light sensor determines it is daytime
When the DRL are on, only your DRL lamps will be on.
The taillamps, sidemarker and other lamps won’t be
on. The instrument panel won’t be lit up either.
3-14

The fog lamps will be cancelled after the ignition is
turned off. If you still want to use the fog lamps after you
restart the vehicle, you will need to press the fog
lamp button again.
Auxiliary Roof Mounted Lamp
If your vehicle has this feature, this switch includes
wiring provisions for a dealer or a qualied service
center to install an auxiliary roof lamp.
This switch is located on
the center of the
instrument panel near the
climate controls.
When the switch wiring is connected to an auxiliary roof
mounted lamp, pressing the switch will activate the lamp
and illuminate an indicator light near the switch. Pressing
the switch again will turn off the roof mounted lamp.
Instrument Panel Brightness
D(Instrument Panel Brightness):This feature
controls the brightness of the instrument panel lights.
The thumbwheel for this feature is located next to
the headlamp control.
Turn the thumbwheel up to adjust the instrument panel
lights. Turn the thumbwheel up to return the radio
display to full brightness when the headlamps or parking
lamps are on. To turn on the dome lamps, turn the
thumbwheel all the way up.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by turning
the thumbwheel, located next to the exterior lamps
control, all the way up. In this position, the dome lamps
will remain on whether a door is opened or closed.
3-17

Fixed Mast Antenna
The xed mast antenna can withstand most car washes
without being damaged. If the mast should ever
become slightly bent, straighten it out by hand. If the
mast is badly bent, replace it.
Check occasionally to make sure the mast is still
tightened to the cowl. If tightening is required, tighten by
hand, then with a wrench one quarter turn.
XM™ Satellite Radio Antenna
System
The XM™ Satellite Radio antenna is located on the roof
of your vehicle. Keep this antenna clear of snow and
ice build up for clear radio reception.
The performance of the XM™ system may be affected if
the sunroof is open.
Loading items onto the roof of your vehicle can interfere
with the performance of the XM™ system. Make sure
that the XM™ satellite antenna is not obstructed.
Chime Level Adjustment
The radio is the vehicle chime producer. To change the
volume level, press and hold pushbutton 6 with the
ignition on and the radio power off. The chime volume
level will change from the normal level to loud, and
LOUD will appear on the radio display. To change back
to the default or normal setting, press and hold
pushbutton 6 again. The chime level will change from
the loud level to normal, and NORMAL will appear
on the radio display. Each time the chime volume is
changed, three chimes will sound as an example of the
new volume selected. Removing the radio and not
replacing it with a factory radio or chime module will
disable vehicle chimes.
3-127