When to Inspect the Engine AirCleaner/Filter
Inspect the air cleaner/filter at the Maintenance II intervals and replace at the first oil change after each 50,000 mile (83 000 km) interval.
If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.
See also:
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick hand ...
Navigation/Radio System
For vehicles with a navigation radio system, see the
separate Navigation System manual. ...
Reporting Safety Defects toGeneral Motors
In addition to notifying NHTSA (or Transport
Canada) in a situation like this, we certainly hope
you will notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Cente ...