GMC 2005 Sierra 1500 Pickup, Owner'S Manual, Page: 535 / 574

Additional Required Services (cont’d)
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)
Allison Transmission
®
only: Change
automatic transmission fluid and filter
(severe service). See footnote (m).
• • • • • •
Allison Transmission
®
only: Change
automatic transmission fluid and filter
(normal service).
• • •
Except Allison Transmission
®
: Change
automatic transmission fluid and filter
(severe service). See footnote (h).
• • •
Except Allison Transmission
®
: Change
automatic transmission fluid and filter
(normal service).
•
Four-wheel drive with automatic
transfer case only: Change transfer
case fluid. See footnote (g).
• • •
Inspect evaporative control system.
An Emission Control Service. See
footnotes † and (k).
• • •
Replace spark plugs and inspect spark
plug wires. An Emission Control
Service.
•
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