Chevrolet kodiak 2004 Owner's Manual page 322

60,000 Miles (96 000 km)
Gasoline Engine Only: Check Oil Life System.
If engine oil and filter are changed, reset system. See
"Engine Oil (Gasoline Engine)" in the Index. (3) (9)
DURAMAX™ Diesel Only: Change engine oil
and filter (or every 12 months, whichever occurs
first). (2) (3)
Gasoline Engine Only (Vehicles with GVW greater
than 16,000 lbs.): Spark plug service. (3) (28)
Check fluid levels (or every 3 months, whichever
occurs first). (1) (6)
Gasoline Engine: Replace engine air cleaner filter.
Diesel Engine: Inspect engine air cleaner filter
change indicator. If necessary, replace the filter. If
vehicle is driven in dusty/dirty conditions, inspect filter
change indicator at every engine oil change. See
Engine Air Cleaner/Filter on page 5-30 for more
information. † (3)
DURAMAX™ Diesel Only: Replace fuel filter.
Chassis lubrication service (or every 6 months,
whichever occurs first). (12)
Replace fuel filter(s) (or every 12 months, whichever
occurs first). (3)
Inspect door hinge pins and bushings and replace as
necessary.
6-12
Steering system service. (13)
Front and rear suspension service. (14)
Spring-to-axle U-bolts and shackle bolts service. (16)
Exhaust system service (or every 6 months,
whichever occurs first). (3) (4) (17)
Wheels and tires service. (15)
Hydraulic brake service (or every 6 months,
whichever occurs first). (7) (46)
Parking brake service (or every 6 months, whichever
occurs first). (8)
Air brake service (or every 6 months, whichever
occurs first). (39)
Air brake automatic slack adjuster service (or every
500 hours, whichever occurs first). (40)
Check air brake relay valve operation and check for
leaks (or every month, or every 300 hours, whichever
occurs first).
Clean air brake application valve (or every 3 months,
or every 300 hours, whichever occurs first). Lubricate
linkage.
Air brake chamber service (or every 2 months,
whichever occurs first).(41)
Trailer brake hand control valve service (or every
3 months, or every 900 hours, whichever occurs
first). (42)