Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-9418855) - 2016 -
crc - 12/15/15
Service and Maintenance 319
.
Engine air cleaner filter
replacement or every 20 000 km/
12,500 Miles. If driving in dusty
conditions, inspect the filter at
each oil change or more often as
needed. See Engine Air Cleaner/
Filter 0 255.
Every 40 000 km/25,000 Miles
.
Passenger compartment air filter
replacement (or every
24 months, whichever occurs
first). More frequent passenger
compartment air filter
replacement may be needed if
driving in areas with heavy
traffic, poor air quality, high dust
levels, or environmental
allergens. Passenger
compartment air filter
replacement may also be
needed if there is reduced
airflow, window fogging,
or odors. Your GM dealer can
help determine when to replace
the filter.
Every 72 000 km/45,000 Miles
.
Replace brake fluid (or every
three years, whichever occurs
first).
.
Rear axle fluid (If equipped with
limited slip).
Every 80 000 km/50,000 Miles
.
Evaporative control system
inspection. Check all fuel and
vapor lines and hoses for proper
hook-up, routing, and condition.
Every 96 000 km/60,000 Miles
.
Spark plug replacement and
spark plug wire inspection.
(LGW 3.0L Twin Turbo Engine)
An Emission Control Service.
Every 160 000 km/100,000 Miles
.
Spark plug replacement and
spark plug wire inspection. (LGX
3.6L Engine) An Emission
Control Service.
Every 240 000 km/150,000 Miles
.
Engine cooling system drain and
refill (or every five years,
whichever occurs first). See
Cooling System 0 257. An
Emission Control Service.
.
Engine drive belts inspection for
fraying, excessive cracks,
or obvious damage (or every
10 years, whichever occurs
first). Replace, if needed.
Severe Conditions Requiring
More Frequent Maintenance*
.
Public service, military,
or commercial use vehicles to
include the following:
‐ Ambulances, police cars and
emergency rescue vehicles.
‐ Civilian vehicles such as light
duty pick-up trucks, SUVs and
passenger cars that are used
in military applications.
‐ Recovery vehicles such as
tow trucks and flatbed single
vehicle carriers or any vehicle
that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles
such as courier delivery
vehicles, private security patrol
vehicles or any vehicles that
operate on a 24 hour basis.
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