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Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
SERVICE AND MAINTENANCE 359
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine
Oil 0 277.
Once a Month
.
Check the tire inflation pressures.
See Tire Pressure 0 322.
.
Inspect the tires for wear. See Tire
Inspection 0 329.
.
Check the windshield washer fluid
level. See Washer Fluid 0 289.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km (600 mi). If driven
under the best conditions, the engine
oil life system may not indicate the
need for vehicle ser vice for up to a
year. The engine oil and filter must be
changed at least once a year and the
oil life system must be reset. Your
trained dealer technician can perform
this work. If the engine oil life system
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 0 280.
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 0 281.
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 service 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 0 329.
.
Check engine oil level and oil
life percentage. If needed,
change engine oil and filter,
and reset oil life system. See
Engine Oil 0 277 and
Engine Oil Life System 0 280.
.
If equipped with the engine air
filter life system, check the air
filter life percentage. If necessar y,
replace the engine air filter and
reset the engine air filter life
system. See Engine Air Filter Life
System 0 281. If the vehicle is not
equipped with the engine air filter
life system, inspect the engine air
cleaner filter. See Engine Air
Cleaner/Filter 0 282.
.
Check engine coolant level. See
Cooling System 0 284.
.
Check windshield washer fluid
level. See Washer Fluid 0 289.
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