Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 385
To inspect or replace the air
cleaner/filter:
2.0L L4 Engine Shown, 2.7L
L4 Engine Similar
1. Remove the five screws on
top of the air cleaner/filter
cover.
2. Lift the air/cleaner/filter
cover away from the air
cleaner/filter housing.
3. Pull out the air
cleaner/filter.
{
Warning
If part replacement is
necessary, the part must be
replaced with one of the
same part number or with an
equivalent part. Use of a
replacement part without
the same fit, form, and
function may result in
personal injury or damage to
the vehicle.
4. Inspect or replace the air
cleaner/filter.
5. Reverse Steps 1–3 to
reinstall the air
cleaner/filter cover.
6. If equipped, reset the
engine air filter life system
after replacing the engine
air filter. See Engine Air
Filter Life System 0 383.
3.6L V6 Engine
1. Air Duct Clamps
2. Electrical Connectors
3. Screws
1. Disconnect the harness
connectors from the air
cleaner/filter cover
electrical connectors (2).
2. Loosen the screws on the
air duct clamps (1) holding
the air outlet ducts in
place. Do not remove
clamps. Move the ducts
aside.