GMC 2007 Sierra - Page 628

Additional Required Services (cont’d)
Service and Miles (Kilometers)
25,000
(40 000)
50,000
(80 000)
75,000
(120 000)
100,000
(160 000)
125,000
(200 000)
150,000
(240 000)
Four-wheel drive only: Change transfer
case fluid (extreme duty service). See
footnotes (g) (l) and (m).
• •••••
Four-wheel drive only: Change transfer
case fluid (normal service). See
footnotes (g) and (m).
•••
Inspect evaporative control system.
An Emission Control Service. See
footnotes † and (k).
•••
Replace spark plugs and inspect spark
plug wires. An Emission Control
Service.
•
Engine cooling system service (or every
five years, whichever occurs first).
An Emission Control Service. See
footnote (i).
•
Inspect engine accessory drive belt.
An Emission Control Service. See
footnote (q).
•
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