GMC C series 2002 Owner's Manual page 295

72,000 Miles (120 000 km)
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Check Oil Life Monitor. If engine oil and filter
are changed, reset monitor. See "Engine Oil" in
the Index. (3)(9)
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Check fluid levels (or every 3 months, whichever
occurs first). (1)(2)(6)
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Chassis lubrication service (or every 6 months,
whichever occurs first). (12)
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Inspect door hinge pins and bushings and replace
as necessary. Lubricate door hinge pins and rollers
with engine oil.
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Wheel bearing (grease type) service (or every
24 months, whichever occurs first, and whenever
hubs are removed). (23)
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Wheels and tires service. (15)(46)
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Hydraulic brake service (or every 6 months,
whichever occurs first). (7)
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Hydraulic brake caliper service (or every 6 months,
whichever occurs first). (22)
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Hydraulic parking brake service (or every 6 months,
whichever occurs first). (8)
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Engine drive belts service (or every 12 months,
whichever occurs first). (18)
7-14
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Clutch pedal free travel service. (10)
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Thermostatically controlled engine cooling
fan service. (4)(20)
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Shields and underhood insulation service. (4)(5)(21)
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Air intake system service (or every 24 months,
whichever occurs first). (4)(5)(24)
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Fuel tank, fuel cap and fuel lines service (or every
72 months, whichever occurs first). (3)(30)
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EGR system inspection (or every 72 months,
whichever occurs first). (3)(31)
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Evaporative Control System Service (if equipped) (or
every 24 months, whichever occurs first). (3)(26)
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Rear axle air shift motor service. (11)
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Check air brake relay valve operation and check
for leaks (or every month, or every 300 hours,
whichever occurs first).
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Clean air brake application valve (or every 3 months,
or every 300 hours, whichever occurs first);
lubricate linkage.
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Air brake chamber service (or every 2 months,
whichever occurs first). (41)
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Trailer brake hand control valve service (or every
3 months, or 900 hours, whichever occurs first). (42)
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