Cadillac 2005 STS, Owner'S Manual

Page: 400 / 438

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)
25,000
(41 500)
50,000
(83 000)
75,000
(125 000)
100,000
(166 000)
125,000
(207 500)
150,000
(240 000)
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. An Emission
Control Service.
• • • • • •
For all-wheel-drive vehicles used for
trailer towing: Change transfer case fluid.
• • •
Throttle body service. An Emission
Control Service. See footnotes † and (l).
• • • • • •
Change automatic transmission fluid and
filter (severe service). See footnote (h).
• • •
Replace spark plugs. An Emission
Control Service.
•
Engine cooling system service (or every
5 years, whichever occurs first). An
Emission Control Service. See
footnote (i).
•
Inspect engine accessory drive belt. An
Emission Control Service.
•
6-6