2003 GMC SONOMA light

Seat
Head Restraints............................................ 1-7
Seatback Latches............................................. 1-8
Seats
Heated Seats............................................... 1-5
Jump Seat..................................................1-10
Manual........................................................ 1-3
Manual Lumbar............................................. 1-4
Memory .....................................................2-54
Power Lumbar .............................................. 1-5
Power Seats
................................................. 1-4
Rear Seat Operation
...................................... 1-9
Reclining Seatbacks
...................................... 1-6
Seatback Latches
.......................................... 1-8
Securing a Child Restraint
Center Seat Position
....................................1-49
Designed for the LATCH System
...................1-46
Rear Outside Seat Position
...........................1-46
Right Front Seat Position
..............................1-49
Security Light
.................................................3-33
Selecting the Right Schedule, Maintenance
.......... 6-5
Service
........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle
.............................................. 5-4
Doing Your Own Work
................................... 5-3
Engine Soon Light
.......................................3-29
Four-Wheel-Drive Warning Light
.....................3-34
Publications Ordering Information
..................... 7-9Service Bulletins.............................................7-10
Service Engine Soon Light in the United States
or Check Engine Light in Canada..................3-29
Service Manuals............................................... 7-9
Servicing Your Air Bag-Equipped
Vehicle.......................................................1-63
Setting Preset PTYs........................................3-61
Setting Preset Stations............3-38, 3-41, 3-48, 3-58
Setting the Time
Radios with Radio Data
Systems (RDS)........................................3-37
Radios without Radio Data
Systems (RDS)........................................3-36
Setting the Tone
(Bass/Treble)......................3-38, 3-41, 3-49, 3-58
Sheet Metal Damage.......................................5-85
Shift Speeds..................................................2-29
Shifting Into Park (P).......................................2-33
Shifting Out of Park (P)...................................2-35
Short Trip/City Definition.................................... 6-5
Short Trip/City Intervals..................................... 6-5
Short Trip/City Scheduled Maintenance................ 6-7
Skidding........................................................4-12
Sliding Rear Windows.....................................2-16
Some Other Rainy Weather Tips.......................4-30
Spare Tire Check............................................6-27
Special Fabric Cleaning Problems.....................5-80
Specifications, Capacities.................................5-94
Speedometer..................................................3-23
13
2003 - Sonoma OM

Top Strap Anchor Location...............................1-43
Torque Lock...................................................2-35
Total Weight on Your Vehicle’s Tires..................4-55
Towing
Recreational Vehicle.....................................4-42
Towing a Trailer..........................................4-51
Your Vehicle...............................................4-42
Trailer
Recommendations.......................................4-50
Trailer Brakes.................................................4-57
Transfer Case................................................5-48
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection.......................6-32
Transmission
Fluid, Automatic...........................................5-20
Fluid, Manual..............................................5-23
Up-Shift Light..............................................3-27
Transmission Operation, Automatic....................2-25
Transmission Operation, Manual........................2-28
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-7
Traveling to Remote Areas...............................4-15
Trip Odometer................................................3-23
Truck-Camper Loading Information....................4-48
Turn and Lane-Change Signals.......................... 3-5
Turn Signal/Multifunction Lever........................... 3-5
Turn Signals When Towing a Trailer..................4-58
Two-Piece Composite Headlamp System............5-51
Two-Tiered Loading.........................................4-48U
Underbody Flushing Service.............................6-30
Understanding Radio Reception........................3-67
Uniform Tire Quality Grading
............................5-63
United States
................................................... 7-4
Up-Shift Light
.........................................2-29, 3-27
Used Replacement Wheels
..............................5-66
Using Cleaner on Fabric
..................................5-80
Using RDS
....................................3-42, 3-50, 3-59
Using Song List Mode
.....................................3-65
Using the Recovery Hooks
...............................4-41
V
Vehicle
Control
........................................................ 4-5
Damage Warnings
........................................... iv
Loading
......................................................4-46
Parking Your
...............................................2-36
Symbols
......................................................... iv
Vehicle Identification
Number (VIN)
.............................................5-87
Service Parts Identification Label
...................5-88
Vehicle Personalization
Memory Seat
..............................................2-54
Vehicle Storage
..............................................5-42
Ventilation Adjustment
......................................3-19
15
2003 - Sonoma OM

Vinyl.............................................................5-80
Visors...........................................................2-16
Voltmeter Gage..............................................3-26
W
Warning Lights, Gages and Indicators................3-20
Warnings
Hazard Warning Flashers............................... 3-3
Other Warning Devices.................................. 3-4
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-82
Weatherstrip Lubrication...................................6-27
Weight of the Trailer........................................4-53
Weight of the Trailer Tongue.............................4-55
What Kind of Engine Oil to Use........................5-14
What to Add ..................................................5-40
What to Do with Used Oil ................................5-17
What to Use ..........................5-26, 5-38, 5-47, 5-49
Wheels
Alignment and Tire Balance..........................5-64
Replacement...............................................5-65
When to Add Engine Oil..................................5-13
When to Change Engine Oil.............................5-16
When to Check......................................5-23, 5-59
When to Check and Change............................5-20
When to Check and Change Lubricant.......5-47, 5-49When to Check and What to Use.....................5-24
When to Check Power Steering Fluid................5-37
When to Inspect the Engine Air Cleaner/Filter.....5-19
When You Are Ready to Leave
After Parking on a Hill..................................4-60
Where to Put the Restraint.......................1-39, 1-40
Why Safety Belts Work....................................1-12
Window Lockout.............................................2-15
Windows.......................................................2-14
Manual......................................................2-15
Power ........................................................2-15
Sliding Rear................................................2-16
Swing-Out Windows.....................................2-16
Windshield and Wiper Blades...........................5-84
Windshield Washer........................................... 3-7
Fluid..........................................................5-38
Windshield Washer Fluid Level Check................6-26
Windshield Wiper
Blade Replacement......................................5-56
Fuses........................................................5-88
Windshield Wipers............................................ 3-7
Winter Driving................................................4-36
Wiper Blade Check.........................................6-27
Wood Panels.................................................5-81
Y
Your Vehicle and the Environment....................... 6-2
16
2003 - Sonoma OM