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Service and Miles (Kilometers)
All-wheel-drive vehicles: Change
transfer case fluid (normal service).
See footnote (q).
CTS-V Only: Change hydraulic clutch
fluid. See footnote (o).
CTS-V Only: Change rear axle fluid
(severe service only). See footnote (o).
CTS-V Only: Change brake fluid
(severe service only). See footnote (o).
Replace spark plugs. An Emission
Control Service.
Engine cooling system service (or
every five years, whichever occurs first).
An Emission Control Service.
See footnote (i).
6.2L Supercharged V8 Engine:
Intercooler system service (or every
five years, whichever occurs first).
See footnote (p).
Inspect engine accessory drive belt.
An Emission Control Service.
See footnote (m).
Additional Required Services (cont'd)
25,000
(40 000)
(80 000)
•
•
50,000
75,000
(120 000)
(160 000)
•
•
•
•
•
100,000
125,000
(200 000)
•
•
•
•
•
•
•
150,000
(240 000)
•
•
•
•
•
•
6-7
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