2003 GMC SONOMA check engine light

Rear Axle......................................................5-47
Locking........................................................ 4-7
Rear Door Security Locks................................2-11
Rear Seat Operation......................................... 1-9
Rear Seat Outside Passenger Positions.............1-26
Rear Seat Passengers, Safety Belts..........1-25, 1-26
Rearview Mirror, Automatic Dimming..................2-39
Rearview Mirrors.............................................2-39
Reclining Seatbacks.......................................... 1-6
Recreational Vehicle Towing.............................4-42
Regular Cab and Extended Cab Models.............1-60
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-71
Removing the Spare Tire and Tools...................5-68
Removing Wheel Covers..................................5-70
Replacement Bulbs.........................................5-55
Replacing Brake System Parts..........................5-42
Replacing Restraint System Parts
After a Crash..............................................1-64
Reporting Safety Defects
Canadian Government................................... 7-9
General Motors............................................. 7-9
United States Government
.............................. 7-8
Restraint System Check
...................................6-26
Checking Your Restraint Systems
...................1-64
Replacing Restraint System Parts
After a Crash
..........................................1-64Restraint Systems
Checking....................................................1-64
Replacing Parts...........................................1-64
Retained Accessory Power (RAP)......................2-22
Right Front Passenger Position, Safety Belts......1-23
Roadside
Assistance Program....................................... 7-5
Rocking Your Vehicle To Get It Out...................4-40
Running Your Engine While You Are Parked.......2-38
S
Safety Belt
Reminder Light............................................3-23
Safety Belts
Care of ......................................................5-82
Center Passenger Position............................1-23
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-15
Questions and Answers About
Safety Belts.............................................1-15
Rear Seat Passengers.........................1-25, 1-26
Right Front Passenger Position......................1-23
Safety Belt Extender....................................1-29
Safety Belt Use During Pregnancy.................1-22
Safety Belts Are for Everyone.......................1-10
Safety Chains.................................................4-56
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-16
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2003 - Sonoma OM

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
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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
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2003 - Sonoma OM