Buick 2011 Enclave - Manual (Page 417)

Black plate (5,1) Buick Enclave Owner Manual - 2011
Service and Maintenance 11-5
. All‐wheel drive only: Transfer
case fluid change (severe
service) for vehicles mainly
driven when frequently towing a
trailer, or used for taxi, police,
or delivery 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.
. Evaporative control system
inspection. Check all fuel and
vapor lines and hoses for proper
hook‐up, routing, and condition.
Check that the purge valve,
if the vehicle has one, works
properly. Replace as needed.
An Emission Control Service.
The U.S. Environmental
Protection Agency or the
California Air Resources Board
has determined that the failure
to perform this maintenance item
will not nullify the emission
warranty or limit recall liability
prior to the completion of
the vehicle's useful life.
We, however, urge that all
recommended maintenance
services be performed at the
indicated intervals and the
maintenance be recorded.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
. Automatic transmission fluid
change (normal service).
See Automatic Transmission
Fluid on page 10‑12.
. Spark plug replacement and
spark plug wires inspection.
An Emission Control Service.
. All‐wheel drive 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.
First Engine Oil Change After
Every 240 000 km/150,000 Miles
. Engine cooling system drain,
flush, and refill (or every
five years, whichever occurs
first). See Cooling System on
page 10‑14. 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.