Buick 2010 Lacrosse Owner's Manual page 297

It is not necessary to check
the transmission fluid level.
A transmission fluid leak is the
only reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer/retailer service department
and have it repaired as soon as
possible.
There is a special procedure
for checking and changing the
transmission fluid. Because this
procedure is difficult, you should
have this done at your dealer/
retailer service department. Contact
your dealer/retailer for additional
information or the procedure can be
found in the service manual. To
purchase a service manual, see
Change the fluid and filter at the
intervals listed in
sure to use the fluid listed in
The engine air cleaner/filter is
located in the engine compartment
on the driver's side of the vehicle.
See
on location.
Inspect the air cleaner/filter at the
.
Maintenance
it at the first oil change after each
80 000 km (50,000 mile) interval.
, and be
See
If you are driving in dusty/dirty
.
conditions, inspect the filter at each
engine oil change.
for more information
intervals and replace
for more information.