GMC 2003 C4C042, Owner'S Manual

Page: 356 / 386

7-10
52,500 Miles (84 000 km)
j Gasoline Engine Only: Check Oil Life System.
If engine oil and filter are changed, reset system.
See “Engine Oil” in the Index. (3)(9)
j Check fluid levels (or every 3 months, whichever
occurs first). (1)(6)
j Chassis lubrication service (or every 6 months,
whichever occurs first). (12)
j Wheels and tires service. (15)
j Parking brake service (or every 6 months, whichever
occurs first). (8)
j L18/LB7 Engines Only: Clutch pedal free
travel service. (10)
60,000 Miles (96 000 km)
j Gasoline Engine Only: Check Oil Life System.
If engine oil and filter are changed, reset system.
See “Engine Oil” in the Index. (3)(9)
j DURAMAXt Diesel Only: Change engine oil and filter
(or every 12 months, whichever occurs first). (2)(3)
j Gasoline Engine Only (Vehicles with GVW greater
than 16,000 lbs.): Spark plug service. (3)(28)
j Check fluid levels (or every 3 months, whichever
occurs first). (1)(6)
j DURAMAXt Diesel Only: Replace fuel filter.
j Chassis lubrication service (or every 6 months,
whichever occurs first). (12)
j Replace fuel filter(s) (or every 12 months, whichever
occurs first). (3)
j Inspect door hinge pins and bushings and replace
as necessary.
j Steering system service. (13)
j Front and rear suspension service. (14)
j Spring
-
to
-
axle U
-
bolts and shackle bolts
service. (16)
j Exhaust system service (or every 6 months,
whichever occurs first). (3)(4)(17)
j Wheels and tires service. (15)
j Hydraulic brake service (or every 6 months,
whichever occurs first). (7)(46)
j Parking brake service (or every 6 months, whichever
occurs first). (8)
j C600, C700 and C800 Gasoline Engines Only:
Engine drive belts service (or every 12 months,
whichever occurs first). (18)
j Thermostatically controlled engine cooling
fan service. (4)(20)
j Shields and underhood insulation service. (4)(5)(21)
j Air compressor dry element pleated paper air strainer
service (or every 2 months or every 800 hours,
whichever occurs first).
j L18/LB7 Engines Only: Clutch pedal free
travel service. (10)