Chevrolet 2006 Silverado 1500 Pickup Owner's Manual page 544

Service and Miles (Kilometers)
Except Allison Transmission
automatic transmission fluid and filter
(severe service). See footnote (h).
Except Allison Transmission
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.
5-speed manual transmission only:
Change manual transmission fluid.
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).
6-8
Additional Required Services (cont'd)
25,000
(41 500)
®
: Change
®
: Change
50,000 75,000
(83 000) (125 000)
100,000 125,000
(166 000) (207 500)
150,000
(240 000)