Additional Required Services - GMC 2008 Envoy Denali 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 and Miles (Kilometers)
Inspect fuel system for damage
or leaks.
Inspect exhaust system for loose or
damaged components.
Replace engine air cleaner filter. See
Engine Air Cleaner/Filter on page 5-21.
Change automatic transmission fluid
and filter (severe service).
See footnotes (g) and (h).
Change automatic transmission
fluid and filter (normal service).
See footnote (g).
Automatic transfer case only: Change
transfer case fluid. See footnote (g).
Replace spark plugs. An Emission
Control Service.
V8 engine only: Inspect spark plug
wires. An Emission Control Service.
6-6
Additional Required Services
25,000 50,000
(40 000) (80 000)
75,000 100,000
(120 000) (160 000)
125,000 150,000
(200 000) (240 000)