Cadillac CTS 2013 Owner's Manual page 385

Underbody flushing service.
Tyre sealant and compressor kit
(if equipped with tyre sealant
and compressor kit), check
sealant expiration date.
Additional Maintenance Every
30 000 km or 2 Years
In addition to the items listed under
Inspection every 15 000 km or
1 year the following items should
be carried out every 30 000 km or
2 years (whichever occurs first):
Passenger compartment air filter
replace (if applicable).
CTS-V Clutch Fluid
Contamination Check
if required.
Engine Air Filter Replacement.
CTS-V only: 6-speed manual
gearbox fluid change (severe
operation).
CTS-V only: Rear axle fluid
change (severe service) for
vehicles mainly driven in hilly or
mountainous terrain, when
frequently towing a trailer, used
for high speed or competitive
driving, or used for taxi, police,
or delivery service. See your
authorised repairer.
All-wheel-drive vehicles only:
Transfer case fluid change
(severe service) for vehicles
mainly driven in heavy city traffic
in hot weather, in hilly or
mountainous terrain, when
frequently towing a trailer,
or used for taxi, police,
or delivery service. During any
replace
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.
Service and Maintenance
Contaminated fluid will decrease
the life of the transfer case and
should be replaced.
Automatic transmission fluid
change (severe service) for
vehicles mainly driven in heavy
city traffic in hot weather, in hilly
or mountainous terrain, when
frequently towing a trailer,
or used for taxi, police,
or delivery service.
Replace Every 2 Years
Replace brake fluid every 2 years.
Note: All vehicles with rear-wheel
drive change driveline axle oil
every 30 000 km, if vehicle is used
for towing purposes.
Additional Maintenance Every
60 000 km or 4 Years
CTS-V only: 6-speed manual
gearbox fluid change (normal
operation).
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