Engine Air Cleaner/Filter - GMC 2003 Sierra 1500 Pickup Owner's Manual

Engine Air Cleaner/Filter
The air cleanedfilter assevbly has an indicator, if
equipped, that lets you know when the engine air
cleaner/filter is dirty and needs to be serviced. The air
cleanedfilter indicator is located on the air cleaner cover.
See Engine Compartment Overview on page 5-12 for
more information on location.
See Part B: Owner Checks and Services on page 6- 1 I
to determine when to check the indicator.
The service window A with
the percentage scale
shows the amount
of engine air cleaner/filter
life used. When both
service window A and
service window B
turn orange, replace the
engine air cleaner/filter.
The air cleanedfilter assembly is located on the front
corner of the engine compartment on the passenger's
side of the vehicle. See Engine Compartment Overview
on page 5-12 for more information on location.
After changing the air filter, press the top button on the
indicator to reset it.
5-23