Chevrolet 2009 Kodiak Owner's Manual page 326

48,000 Miles (75 000 km)
❑ Lubricate U-joints (or every 6 months, whichever
occurs first).
50,000 Miles (80 000 km)
❑ Inspect air compressor discharge port (or every
6 months or every 1,800 hours, whichever occurs
first.)
52,500 Miles (84 000 km)
❑ Gasoline Engine Only: Check engine oil life system.
If engine oil and filter are changed, reset system. See
"Engine Oil (Gasoline Engine)" in the Index. (2) (8)
❑ Check fluid levels (or every 3 months, whichever
occurs first). (1) (5)
❑ Chassis lubrication service (or every 6 months,
whichever occurs first). (11)
❑ Wheels and tires service. (14)
❑ DURAMAX
®
Diesel Engine Only: Adjust valve lash (or
every 2,625 hours of engine operation, whichever
occurs first). (18)
❑ Hydraulic brake service (or every 6 months, whichever
occurs first). (6) (36)
❑ Parking brake service (or every 6 months, whichever
occurs first). (21)
❑ Air brake service (or every 6 months, whichever
occurs first). (32)
6-12
❑ Air brake automatic slack adjuster service (or every
500 hours, whichever occurs first). (33)
❑ 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). (34)
60,000 Miles (96 000 km)
❑ Gasoline Engine Only: Check engine oil life system.
If engine oil and filter are changed, reset system. See
"Engine Oil (Gasoline Engine)" in the Index. (2) (8)
❑ DURAMAX/Isuzu Diesel Without Engine Oil Life
System Only: Change engine oil and filter (or every
12 months, or every 750 hours of engine operation,
whichever occurs first). (2) (39)
❑ DURAMAX/Isuzu Diesel With Engine Oil Life System
Only: Check oil life system. If engine oil and filter are
changed, reset system. See "Engine Oil (DURAMAX/
Isuzu Diesel)" in the Index. (2) (9)
❑ Gasoline Engine Only (Vehicles with GVW greater
than 16,000 lbs): Spark plug service. (2) (25)
❑ Check fluid levels (or every 3 months, whichever
occurs first). (1) (5)