Chevrolet Kodiak 2008 Owner's Manual page 338

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)
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)
Air brake system valve service (or every 3 months, or
every 900 hours, whichever occurs first). (37)
Rear axle air shift motor service. (10)
Air intake system service (or every 24 months,
whichever occurs first). (3) (4) (23)
Evaporative Control System service, if equipped, (or
every 24 months, whichever occurs first). (2) (24) †
6-14
72,000 Miles (115 000 km)
Lubricate U-joints (or every 6 months, whichever
occurs first).
75,000 Miles (120 000 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)
Chassis lubrication service (or every 6 months,
whichever occurs first). (11)
Check fluid levels (or every 3 months, whichever
occurs first). (1) (5)
Gasoline Engine: Inspect engine air cleaner filter.
If necessary, replace the filter. If vehicle is driven
in dusty/dirty conditions, inspect filter at every engine
oil change. See Engine Air Cleaner/Filter on
page 5-39 for more information.