2004 GMC SONOMA sunroof

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-27
Air Bag System
.......................................1-46
Restraint System Check
............................1-53
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-7
Windows
.................................................2-12
Theft-Deterrent Systems
............................2-14
Starting and Operating Your Vehicle
...........2-16
Mirrors
....................................................2-31
Storage Areas
.........................................2-33
Sunroof
..................................................2-42
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-18
Warning Lights, Gages and Indicators
.........3-21
Audio System(s)
.......................................3-35Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-45
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-46
Four-Wheel Drive
.....................................5-46
Front Axle
...............................................5-47
Bulb Replacement
....................................5-48
Windshield Wiper Blade Replacement
.........5-54
Tires
......................................................5-57
Appearance Care
.....................................5-86
Vehicle Identification
.................................5-94
Electrical System
......................................5-94
Capacities and Specifications
...................5-101
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
2004 GMC Sonoma Owner ManualM

Keys...............................................................2-2
Remote Keyless Entry System.........................2-4
Remote Keyless Entry System Operation...........2-5
Doors and Locks.............................................2-7
Door Locks....................................................2-7
Power Door Locks..........................................2-8
Programmable Automatic
Door Locks................................................2-8
Rear Door Security Locks..............................2-10
Lockout Protection........................................2-10
Leaving Your Vehicle....................................2-10
Tailgate.......................................................2-11
Windows........................................................2-12
Manual Windows..........................................2-12
Power Windows............................................2-13
Sliding Rear Window.....................................2-14
Sun Visors...................................................2-14
Theft-Deterrent Systems..................................2-14
Content Theft-Deterrent.................................2-14
Passlock
®....................................................2-16
Starting and Operating Your Vehicle................2-16
New Vehicle Break-In....................................2-16
Ignition Positions..........................................2-17
Starting Your Engine.....................................2-18
Engine Coolant Heater..................................2-19Automatic Transmission Operation...................2-20
Four-Wheel Drive..........................................2-22
Parking Brake..............................................2-25
Shifting Into Park (P).....................................2-26
Shifting Out of Park (P).................................2-28
Parking Over Things That Burn.......................2-29
Engine Exhaust............................................2-29
Running Your Engine While You Are Parked. . . .2-30
Mirrors...........................................................2-31
Manual Rearview Mirror.................................2-31
Automatic Dimming Rearview Mirror................2-31
Outside Manual Mirror...................................2-31
Outside Power Mirrors...................................2-32
Outside Convex Mirror...................................2-32
Outside Heated Mirrors..................................2-32
Storage Areas................................................2-33
Glove Box...................................................2-33
Overhead Console........................................2-33
Front Storage Area.......................................2-40
Assist Handles.............................................2-40
Garment Hooks............................................2-40
Luggage Carrier...........................................2-40
Bed Rails....................................................2-41
Sunroof.........................................................2-42
Section 2 Features and Controls
2-1

Retained Accessory Power (RAP)
Your vehicle is equipped with a Retained Accessory
Power (RAP) feature which will allow certain features of
your vehicle to continue to work for up to 20 minutes
after the ignition key is turned to OFF.
Your radio, power windows, sunroof and overhead
console will work when the ignition key is in RUN or
ACCESSORY. Once the key is turned from RUN
to OFF, these features will continue to work for up to
20 minutes or until a door is opened.
Starting Your Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won’t start in any other position–
that’s a safety feature. To restart when you’re already
moving, use NEUTRAL (N) only.
Notice:Do not try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
1. With your foot off the accelerator pedal, turn the
ignition key to START. When the engine starts,
let go of the key. The idle speed will go down as
your engine gets warm.Notice:Holding your key in START for longer than
15 seconds at a time will cause your battery to
be drained much sooner. And the excessive heat
can damage your starter motor. Wait about
15 seconds between each try to help avoid draining
your battery or damaging your starter.
2. If it doesn’t start within 10 seconds, push the
accelerator pedal all the way to the floor, while you
hold the ignition key in START. When the engine
starts, let go of the key and let up on the accelerator
pedal. Wait about 15 seconds between each try.
When starting your engine in very cold weather (below
0°F or 18°C), do this:
1. With your foot off the accelerator pedal, turn the
ignition key to START and hold it there up to
15 seconds. When the engine starts, let go of
the key.
2. If your engine still won’t start (or starts but then
stops), it could be flooded with too much gasoline.
Try pushing your accelerator pedal all the way to the
floor and holding it there as you hold the key in
START for about three seconds. When the engine
starts, let go of the key and accelerator. If the
vehicle starts briefly but then stops again, do the
same thing, but this time keep the pedal down
for five or six seconds. This clears the extra
gasoline from the engine.
2-18

Sunroof
If your vehicle has a
sunroof, the switch is
located between the sun
visors.
The sunroof switch will only work when the ignition is on
or when the ignition is off and retained accessory
power is active. See “Retained Accessory Power” under
Ignition Positions on page 2-17for more information.To operate the sunroof using the power switch do the
following:
1. When vent opening the sunroof press and hold the
side of the switch with the roof symbol on it until the
roof is vented.
2. Press and hold the side of the switch with the roof
symbol on it again to fully open the roof. The roof
will stop when it is fully opened.
Releasing the switch at any time will stop the roof
at that position.
3. To close the sunroof press the side of the switch
opposite of the roof symbol and hold it until the
glass panel is seated.
2-42

Manually Closing the Sunroof
If you are unable to operate the sunroof using the
switch, check the fusible link under the dashboard.
Your vehicle, when new, came with a tool for manually
operating the sunroof. See your dealer if you cannot
locate this tool in your vehicle.
To manually close the sunroof do the following:
1. Use a flat bladed tool to remove the cover.2. Insert the key and turn to the right.
2-43

Locking Rear Axle............................................ 4-8
Lockout Protection..........................................2-10
Locks
Door........................................................... 2-7
Leaving Your Vehicle....................................2-10
Lockout Protection.......................................2-10
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-8
Rear Door Security Locks.............................2-10
Long Trip/Highway Definition.............................. 6-6
Long Trip/Highway Intervals............................... 6-6
Long Trip/Highway Scheduled Maintenance........6-17
Loss of Control...............................................4-13
Low Fuel Warning Light...................................3-35
Luggage Carrier..............................................2-40
Lumbar
Power Controls............................................. 1-4
M
Maintenance Schedule
At Each Fuel Fill.........................................6-25
At Least Four Times a Year..........................6-27
At Least Once a Month................................6-25
At Least Once a Year..................................6-27
At Least Twice a Year..................................6-26
Brake System Inspection..............................6-31
Engine Cooling System Inspection.................6-30
Exhaust System Inspection...........................6-30Maintenance Schedule (cont.)
Fuel System Inspection................................6-30
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Long Trip/Highway Scheduled Maintenance.....6-17
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-34
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-25
Part C - Periodic Maintenance Inspections......6-30
Part D - Recommended Fluids and
Lubricants...............................................6-32
Part E - Maintenance Record........................6-36
Selecting the Right Schedule.......................... 6-5
Short Trip/City Scheduled Maintenance............. 6-6
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-30
Throttle System Inspection............................6-31
Transfer Case and Front Axle (Four-Wheel
Drive) Inspection......................................6-31
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-63
Making Turns.................................................4-61
Malfunction Indicator Light................................3-29
Manual Seats................................................... 1-2
Manual Windows............................................2-12
Manually Closing the Sunroof...........................2-43
Matching Transmitter(s) to Your Vehicle............... 2-5
9

Steering in Emergencies..................................4-10
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..............................6-30
Steering Tips................................................... 4-9
Storage
Garment Hooks...........................................2-40
Storage Areas
Front Storage Area......................................2-40
Glove Box..................................................2-33
Luggage Carrier..........................................2-40
Overhead Console.......................................2-33
Storing a Flat or Spare Tire and Tools...............5-83
Stuck in Sand, Mud, Ice or Snow......................4-42
Sun Visors.....................................................2-14
Sunglasses Storage Compartment.....................2-37
Sunroof.........................................................2-42
T
Tachometer....................................................3-24
Tailgate.........................................................2-11
Tailgate Lubrication Service..............................6-27
Taillamps.......................................................5-53
Temperature and Compass Display....................2-36
Testing the Alarm............................................2-15
Theft-Deterrent, Radio.....................................3-73Theft-Deterrent Systems...................................2-14
Content Theft-Deterrent................................2-14
Passlock
®...................................................2-16
Throttle System Inspection...............................6-31
Tilt Wheel........................................................ 3-5
Time Delay....................................................2-31
Tire Inflation Check.........................................6-25
Tire Sidewall Labeling......................................5-58
Tire Size.......................................................5-63
Tire Terminology and Definitions........................5-64
Tires.............................................................5-57
Buying New Tires........................................5-70
Chains.......................................................5-74
Changing a Flat Tire....................................5-75
Compact Spare Tire.....................................5-85
If a Tire Goes Flat.......................................5-74
Inflation - Tire Pressure................................5-67
Inspection and Rotation................................5-68
Uniform Tire Quality Grading.........................5-71
Wheel Alignment and Tire Balance.................5-72
Wheel Replacement.....................................5-72
When It Is Time for New Tires......................5-69
To Use the Engine Coolant Heater....................2-19
Top Strap......................................................1-37
Top Strap Anchor Location...............................1-38
Torque Lock...................................................2-28
14