GMC 2004 Sonoma Owner's Manual page 347

Section 6
Maintenance Schedule ......................................6-2
Introduction ...................................................6-2
Maintenance Requirements ..............................6-2
Your Vehicle and the Environment ....................6-2
How This Section is Organized .........................6-3
Part A: Scheduled Maintenance Services ...........6-4
Using Your Maintenance Schedule ....................6-4
Selecting the Right Schedule ...........................6-5
Short Trip/City Scheduled Maintenance ..............6-6
Long Trip/Highway Scheduled Maintenance ......6-17
Part B: Owner Checks and Services ................6-25
At Each Fuel Fill ..........................................6-25
At Least Once a Month .................................6-25
At Least Twice a Year ...................................6-26
At Least Four Times a Year ...........................6-27
Maintenance Schedule
At Least Once a Year ...................................6-27
Part C: Periodic Maintenance Inspections .........6-30
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection ............................6-30
Exhaust System Inspection ............................6-30
Fuel System Inspection ..................................6-30
Engine Cooling System Inspection ...................6-30
Throttle System Inspection .............................6-31
Transfer Case and Front Axle (Four-Wheel
Drive) Inspection .......................................6-31
Brake System Inspection ................................6-31
Part D: Recommended Fluids and Lubricants ....6-32
Normal Maintenance Replacement Parts ..........6-34
Engine Drive Belt Routing ..............................6-35
Part E: Maintenance Record ...........................6-36
6-1