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Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 4/10/19
SERVICE AND MAINTENANCE 319
is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since
the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System 0 248.
Engine Air Filter Change
When the REPLACE AT NEXT OIL
CHANGE message displays, the engine
air filter should be replaced at the
next engine oil change. When the
REPLACE ENGINE AIR FILTER SOON
message displays, the engine air filter
should be replaced at the earliest
convenience. Reset the engine air
filter life system after the engine air
filter is replaced. See Engine Air Filter
Life System 0 249.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance ever y seven years. This
service requires replacement of the
desiccant to help the longevity and
efficient operation of the air
conditioning system. This ser vice can
be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation 0 284.
.
Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil 0 246
and
Engine Oil Life System 0 248.
.
If equipped with the engine air
filter life system, check the air
filter life percentage. If necessary,
replace the engine air filter and
reset the engine air filter life
system. See Engine Air Filter Life
System 0 249. If the vehicle is not
equipped with the engine air filter
life system, inspect the engine air
cleaner filter. See Engine Air
Cleaner/Filter 0 250.
.
Check engine coolant level. See
Cooling System 0 251.
.
Check windshield washer fluid
level. See Washer Fluid 0 255.
.
Check tire inflation pressures. See
Tire Pressure 0 277.
.
Inspect tire wear. See Tire
Inspection 0 284.
.
Visually check for fluid leaks.
.
Inspect brake system. See Exterior
Care 0 308.
.
Visually inspect steering,
suspension, and chassis
components for damage, including
cracks or tears in the rubber boots,
loose or missing parts, or signs of
wear at least once a year. See
Exterior Care 0 308.
.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
.
Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or universal
joint looseness, cracked or missing
boots, loose or missing boot
clamps, center bearing excessive
looseness, loose or missing
fasteners, and axle seal leaks.
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