Additional Required Services - GMC 2004 Sierra 1500 Pickup Owner's Manual

Additional Required Services

The following services should be performed at the first maintenance service (I or II) after the indicated miles
(kilometers) shown for each item.
Service
Allison transmission only: Replace
external control-main filter. See
footnote (l).
Inspect fuel system for damage
or leaks.
Inspect exhaust system for loose or
damaged components.
Vehicles without a filter restriction
indicator: Replace engine air
cleaner filter. See Engine Air
Cleaner/Filter on page 5-23 .
An Emission Control Service.
6-speed manual transmission
only: Change clutch fluid. See
footnote (n).
6-6
Additional Required Services
25,000 50,000
(41 500) (83 000)
75,000 100,000
(125 000) (166 000)
125,000 150,000
(207 500) (240 000)