Cadillac CTS-V 2009, Owner'S Manual

Page: 448 / 490

(n) If the vehicle has the 3.6L V6 (Code V) engine,
replace the engine air cleaner filter every 40,000 miles
(64 000 km).
(o) Drain, flush, and refill clutch hydraulic system at a
regular maintenance service every two years. This
service can be complex; you should have your
dealer/retailer perform this service. Change fluid every
25,000 miles (40 000 km) if the vehicle is used for
high performance operation.
(p) Drain, flush, and refill intercooler system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-32.
(q) Check vent hose at transfer case for kinks and
proper installation. Check to be sure vent hose
is unobstructed, clear, and free of debris. During any
maintenance, if a power washer is used to clean
mud and dirt from the underbody, care should be taken
to not directly spray the transfer case output seals.
High pressure water can overcome the seals and
contaminate the transfer case fluid. Contaminated fluid
will decrease the life of the transfer case and should
be replaced.
(r) Change transfer case fluid if the vehicle is mainly
driven under one or more of these conditions:
− In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
− In hilly or mountainous terrain.
− When doing frequent trailer towing.
− Uses such as high performance operation or taxi,
police, or delivery service.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specified to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
in Recommended Fluids and Lubricants on page 6-14.
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