2003 GMC SIERRA DENALI window

Glass Surfaces Weatherstrips
Glass should be cleaned often. GM Glass Cleaner or a
liquid household glass cleaner will remove normal
tobacco smoke and dust films on interior glass. See
GM
Vehicle Care/Appearance Materials on page
5-92.
Notice: Don’t use abrasive cleaners on glass,
because they may cause scratches. Avoid placing
decals on
the inside rear window, since they
may have to be scraped
off later. If abrasive cleaners
are used on the inside of the rear window, an
electric defogger element may be damaged. Any
temporary license should not be attached across the defogger grid.
Care of Safety Belts
Ke belts clean and dry.
Do not bleach or dye safety belts. If you do, it
may severely weaken them. In a crash, they
might not be able to provide adequate
protection. Clean safety belts only with mild
soap and lukewarm water.
I
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth at least every six
months. During very cold, damp weather more frequent
application may be required. See
Part D: Recommended
Fluids and Lubricants on page
6-16.
Cleaning the Outside of Your
Vehicle
The paint finish on your vehicle provides beauty, depth
of color, gloss retention and durability.
Washing Your Vehicle
The best way to preserve your vehicle’s finish is to keep
it clean by washing it often with lukewarm or cold
water.
Don’t wash your vehicle in the direct rays of the sun.
Use a car washing soap. Don’t use strong soaps
or chemical detergents. Be sure to rinse the vehicle
well, removing all soap residue completely. You can get
GM-approved cleaning products from your dealer.
5-88

Electrical System
Add-on Electrical Equipment
Notice: Don’t add anything electrical to your
vehicle unless you check with your dealer first.
Some electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment can
keep other components from working as they
should.
Your vehicle has an air bag system. Before attempting
to add anything electrical to your vehicle, see
Servicing Your Air Bag-Equipped Vehicle on page 1-72.
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 fixed.
Power Windows and Other Power
Options
Circuit breakers protect the power windows and other
power accessories. When the current load
is too heavy,
the circuit breaker opens and closes, protecting the
circuit until the problem is fixed 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 fires 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.
5-95

Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.
Device Special Equipment ODtion
SEO Usage
TRAILER Upfitter (Not Used)
UPFIT Trailer
Brake Wiring
1 SL RIDE I
Ride Control Harness
Connection
I Device I Usage I
HDLR 2
Bodv Wiring Connector
BODY Headliner Wiring
connector-
DEFOG Headliner Wiring Connector
1 HDLNR 1
Rear Defogger Relay
I SPARE RELAY I Not Used I
CB SEAT Driver
and Passenger Seat
Module Circuit Breaker
I CB RT DOOR I
Right Power Windows Circuit
Breaker
I
I SPARE I Not Used I
I INFO I
~-
Infotainment Harness
Connection
1
5-98

Fuses Usage
4WS Canister/QUADRASTEERTM
RR HVAC Not Used
Vent
Solenoid
Module Power
AUX PWR IGN
1 Ignition Relay
PCM
1
Auxiliary Power
Outlet
- Console
Electronic Throttle Control,
IGN E
Rday
RTD Ride Control
TRL B/U
PCM B
~~ ~-
Backup Lamps Trailer Wiring
Powertrain Control Module,
Fuel Pump
-. - . . -. . . .
F/PM P
B/U LP Transmission Shift Lock
r
Fuel Pump (Relay)
Back-up Lamps, Automatic
Control System
RR DEFOG Rear Window Defogger SIR
FRT PARK
DRL Daytime Running Lamps
I (Relav)
SEO IGN
TBC IGNI Truck Body Controller Ignition \~ ------I
Rear Defog Relay
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DIC Instrument
Panel
Cluster/Driver Information Center
5-1 02

Driving Through Flowing Water ..................... 4-32
Driving with a Trailer
....................................... 4-56
Dual Automatic Climate Control System
.......... 3-18
E
Easy Exit Seat .................... .... 2-43
Electrical System
Add-on Equipment
...................................... 5-95
Fuses and Circuit Breakers
........................... 5-95
Power Windows and Other Power Options
...... 5-95
Windshield Wiper Fuses
............................... 5-95
Electrochromic Mirror Operation
........................ 2-28
Maintenance Programs
................................. 3-40
Air CleanedFilter
......................................... 5-1 9
Battery
....................................................... 5-42
Check and Service Engine Soon Light
............ 3-38
Coolant
...................................................... 5-24
Coolant Heater
............................................ 2-17
Coolant Temperature Gage
........................ 3-36
Cooling System Inspection
......................... 6-14
Engine Compartment Overview
...................... 5-1 2
Exhaust
..................................................... 2-26
Fan Noise
.................................................. 5-36
Oil
............................................................. 5-13
Overheating
................................................ 5-27
Starting
...................................................... 2-1 6
Emissions
Inspection and
Engine ENGINE COOLANT HOT
................................. 3-54
Engine Coolant Level Check
............................. 6-10
Engine Hour Meter Display
............................... 3-26
Engine
Oil and Chassis Lubrication Scheduled
Engine
Oil Additives
........................................ 5-17
Engine Oil Level Check
................................... 6-10
Entry Lighting
......................... ............. 3-15
Maintenance
................................................. 6-5
ENGINE OVERHEATED
.................................. 3-54
Erasing HomeLink@ Buttons
...... ......... 2-38
Exit Lighting
............................... ............. 3-15
Express-Down Windows
................................... 2-11
Extender, Safety Belt
....................................... 1-29
Exterior Lamps
............................................... 3-11
F
FabridCarpet ................................................. 5-87
Engine Air Cleaner
...................................... 5-19
Filter
Finding
a PTY Station
(RDS, XMTM and DAB)
................................. 3-67
Finding a Station
............................................ 3-64
Finish Care
.................................................... 5-89
Finish Damage
............................................... 5-91
Fixed Mast Antenna
........................................ 3-84
Flash-To-Pass Feature
....................................... 3-6
Flat Tire
........................................................ 5-68
Flat Tire, Changing
......................................... 5-69

Payload ...................................................... 4-47
Personalization Button
..................................... 3-47
Pickup Conversion to Chassis Cab
.................... 4-50
Playing a Cassette Tape
.................................. 3-72
Playing a Compact Disc
................................... 3-74
Power
Playing
the Radio
........................................... 3-63
Accessory Outlets
........................................ 3-1 6
Electrical System
......................................... 5-95
Lumbar Controls
........................................... 1-3
Seat
............................................................ 1-2
Steering Fluid
............................................. 5-37
Windows
.................................................... 2-1 1
Power Steering ................................................ 4-9
Programming the HomeLink@ Transmitter
........... 2-35
Puddle Lamps
................................................ 3-13
Door Locks
.................................................. 2-7
Q
QUADRASTEERTM ......................................... 4-10
Questions and Answers About Safety Belts
......... 1-12 Radios (cont.)
CD Changer
............................................... 3-78
Rear Seat Audio
.......................................... 3-76
Theft-Deterrent
............................................ 3-81
Understanding Reception
.............................. 3-82
Rear Axle
...................................................... 5-50
Locking
........................................................ 4-8
Rear Doors
...................................................... 2-8
Rear Safety Belt Comfort Guides
...................... 1-27
Rear Seat Audio
............................................. 3-76
Rear Seat Audio Controls
................................. 3-77
Rear Seat Operation
......................................... 1-7
Rear Seat Outside Passenger Positions
............. 1-24
Rear Seat Passengers, Safety Belts
.................. 1-24
Rear Seat Top Strap Anchors
........................... 1-42
Rear Window Defogger
.................................... 3-22
DAB
Radio Antenna System
.......................... 3-84
Radio with Cassette and CD
......................... 3-62
Setting the Time
.......................................... 3-61
RDS and DAB Messages
................................. 3-68
Rearview Mirror, Automatic Dimming with
Onstar@, Compass and Temperature
Disdav
............................................. ...... 2-28 Id ..........................................
R
Reclining Seatbacks 1-4
Recreational Vehicle Towing
............................. 4-45
............................. Radio Messages 3-69
Radios 3-61 REDUCED BRAKE POWER
3-57
REDUCED ENGINE POWER 3-54 .............................................
........................... ..........................................................
Care of Your Cassette Tape Player ................ 3-83 Remote Alarm .................................................. 2-4
Care of Your CD Player
............................... 3-84 kxr~ote Keyless EntV System ............................ 2-3
Care of Your CDs
........................................ 3-84 Remote Keyless Entry System, Operation ............ 2-4
11

Securing a Child Restraint
Center Rear Seat Position
............................ 1-48
Designed for the LATCH System
................... 1-46
Rear Outside Seat Position
........................... 1-46
Select Button
................................................. 3-53
Service
........................................................... 5-3
Vehicle
..................................................... 5-4
Doing Your Own Work
................................... 5-4
Engine Soon Light
....................................... 3-38
Publications Ordering Information
................... 7-10
Right Front Seat
Position
.............................. 1-50
Adding Equipment to the Outside
of Your
SERVICE
4 WHEEL STEER ............................. 3-58
SERVICE 4WD
............................................... 3-56
SERVICE AIR SUSPENSION
........................... 3-56
SERVICE AIRBAG
.......................................... 3-55
SERVICE BRAKE BOOSTER
........................... 3-55
SERVICE BRAKE SYSTEM
............................. 3-55
Service Bulletins
............................................. 7-1 0
Service Manuals ............................................. 7-10
Setting the Time
............................................. 3-61
Sheet Metal Damage
.................................... 5-91
Shifting Into Park (P)
.................................... 2-23
Setting Preset PTYs (RDS Only)
....................... 3-67
Setting Preset Stations
.................................... 3-65
Setting the Tone (Bassnreble)
.......................... 3-66
Shifting Out of Park (P)
................................... 2-25 Skidding
........................................................ 4-1 5
Some Other Rainy Weather Tips ....................... 4-32
Spare Tire
..................................................... 5-85
Spare Tire Check
............................................ 6-11
Specifications. Capacities
............................... 5-1 04
Speedometer .................................................. 3-26
Starter Switch Check
....................................... 6-12
Starting Your Engine
....................................... 2-16
Steering
.......................................................... 4-9
Steering and Suspension Inspection
.................. 6-14
Steering in Emergencies
.................................... 4-9
Steering Tips
................................................... 4-9
Center Console Storage Area
.... ............ 2-39
Cupholder(s)
............................................... 2-39
Glove Box
.................................................. 2-39
Steering
Wheel Controls, Audio
......................... 3-81
Storage Areas
Storing a Flat or Spare Tire and
Tools ............... 5-83
Stuck in Sand, Mud, Ice or Snow
...................... 4-42
Sun Visors
..................................................... 2-12
Swing-Out Windows
........................................ 2-11
Tachometer
................................................ 3-26
Tailgate
........................................................... 2-8
Tailgate Removal
.............................................. 2-9
13

When to Check Power Steering Fluid ................ 5-37
Parking on a Hill
......................................... 4-59
When
You Are Ready to Leave After
Where to Put the Restraint
............................... 1-38
Why Safety Belts Work
..................................... 1-9
Windows
....................................................... 2-10
Power
........................................................ 2-11
Swing-Out Windows
..................................... 2-11
Windshield and Wiper Blades
........................... 5-90
Windshield Washer
........................................... 3-7
Fluid
.......................................................... 5-38
Windshield Washer Fluid Level Check
................ 6-10
Windshield Wiper
Blade Replacement
...................................... 5-60
Fuses
........................................................ 5-95 Windshield
Wipers
............................................ 3-6
Winter Driving
................................................ 4-38
Wiper Blade Check
......................................... 6-11
Wood Panels
................................................. 5-87
X
XMTM Satellite Radio Antenna System ................ 3-84
XMTM Satellite Radio Service
............................ 3-82
Your Vehicle and the Environment
........., .......... 6-2
16