Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-16504481) - 2023 - CRC - 9/26/22
50 Vehicle Care
When to Change Engine Air Filter
When the Driver Information Center (DIC)
displays a message to replace the engine air
filter at the next oil change, follow this
timing.
When the DIC displays a message to replace
the engine air filter soon, replace the engine
air filter at the earliest convenience.
The system must be reset after the engine
air filter is changed.
If the DIC displays a message to check the
engine air filter system, see your dealer.
How to Reset Engine Air Filter Life
System
To reset:
1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See
Driver Information Center (DIC) 0 8.
3. Press
T on the steering wheel, or press
the trip odometer reset stem if the
vehicle does not have the DIC controls,
to move to the Reset/Disable display
area. Select Reset, then press the
thumbwheel or press the reset stem for
several seconds.
4. Press the thumbwheel or the reset stem
to confirm the reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is on the
passenger side of the engine compartment.
See Engine Compartment Overview 0 46.
When to Inspect the Engine Air Cleaner/Filter
If the vehicle is not equipped with the
engine air filter life system, see
Maintenance Schedule 0 61 for intervals on
inspecting and replacing the engine air
cleaner/filter.
How to Inspect/Replace the Engine Air
Cleaner/Filter
Do not start the engine or have the engine
running with the engine air filter housing
open. Before removing the engine air filter,
make sure that the engine air filter housing
and nearby components are free of dirt and
debris. Remove the engine air filter. Lightly
tap and shake the engine air filter (away
from the vehicle) to release dust and dirt.
Inspect the engine air filter for damage, and
replace if damaged. Do not clean the engine
air filter or components with water or
compressed air. When changing the air filter,
remove the dust valve from the front intake
air duct and clean out any debris if
necessary.
Caution
Water sprayed into or on the air intake
box in the engine compartment may
damage the air filter or electrical
components. Do not spray water into or
on the air intake box.
1. Screws (6)
2. Housing Cover
3. Electrical Connector
4. Clamps
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