Cadillac 2007 XLR Owner's Manual page 468

Additional Required Services (cont'd)
25,000 50,000 75,000 100,000 125,000 150,000
Service and Miles (Kilometers)
(40 000) (80 000) (120 000) (160 000) (200 000) (240 000)
Replace spark plugs. An Emission
Control Service.
Engine cooling system service
(or every five years, whichever occurs
first). An Emission Control Service. See
footnote (g).
4.4L Supercharged Engine: Intercooler
system service (or every five years,
whichever occurs first).
See footnote (k).
Inspect engine accessory drive belt.
An Emission Control Service. See
footnote (j).
468