Chevrolet Silverado 2003, Owner'S Manual

Page: 510 / 556

45,000 Miles (75 000 km)
❑
Inspect engine air cleaner filter or change indicator (if
equipped). If necessary, replace the filter. If vehicle is
driven in dusty/dirty conditions, inspect filter or
change indicator (if equipped) at every engine oil
change. See
Engine Air Cleaner/Filter on page 5-21
for more information. An Emission Control Service.
(See footnote †.)
❑
Check rear/front axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑
Rotate tires. See Tire Inspection and Rotation on
page 5-71 for proper rotation pattern and additional
information.
(See fo.)
50,000 Miles (83 000 km)
❑
Change automatic transmission fluid and filter if the
vehicle’s GVWR is over 8600 lbs, if the vehicle has
an Allison transmission or if the vehicle is mainly
driven under one or more of these conditions:
− In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
− In hilly or mountainous terrain.
− When doing frequent trailer towing.
− Uses such as found in taxi, police or delivery
service.
Except Allison Transmission
®
: If you do not use your
vehicle under any of these conditions, change the fluid
and filter at 100,000 miles (166 000 km).
❑
Automatic Transfer Case Only: Change transfer case
fluid.
52,500 Miles (87 500 km)
❑
Check rear/front axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑
Rotate tires. See Tire Inspection and Rotation on
page 5-71 for proper rotation pattern and additional
information.
(See fo.)
60,000 Miles (100 000 km)
❑
Check rear/front axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑
Rotate tires. See
Tire Inspection and Rotation on
page 5-71 for proper rotation pattern and additional
information.
(See fo.)
❑
Replace fuel filter.
An Emission Control Service. (See
footnote †.)
6-8