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10-6 Service and Maintenance
.
CTS-V only: Rear axle fluid
change (severe service only) 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 Rear
Axle on page 9‑30.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
.
Automatic transmission fluid
change (normal service).
See Automatic Transmission
Fluid on page 9‑13.
.
All-wheel-drive vehicles only:
Transfer case fluid change
(normal service). 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.
.
Spark plug replacement.
An Emission Control Service.
.
CTS-V only: Supercharger drive
belt inspection for fraying,
excessive cracks, or obvious
damage and replacement,
if needed.
First Engine Oil Change After
Every 240 000 km/150,000 Miles
.
Engine cooling system drain,
flush, and refill, cooling system
and cap pressure check, and
cleaning of outside of radiator
and air conditioning condenser
(or every 5 years, whichever
occurs first). See Cooling
System
on page 9‑18
. An
Emission Control Service.
.
6.2L supercharged V8 engine
only: Intercooler system drain,
flush, and refill, cooling system
and cap pressure check, and
cleaning of outside of radiator
and air conditioning condenser
(or every 5 years, whichever
occurs first). See Cooling
System
on page 9‑18
.
An Emission Control Service.
.
Engine accessory drive belt
inspection for fraying, excessive
cracks, or obvious damage
and replacement, if needed.
An Emission Control Service.