When to Inspect the Engine Air Cleaner/Filter

Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Maintenance Schedule  for more information. If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.

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    Customer Assistance Offices
    Buick encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Buick, the letter should be addressed to: United States — Customer Assist ...

    Headlamps
    The exterior lamps knob is located on your instrument panel to the left of the steering wheel. (Off): Turn the knob to this symbol and release it to turn off the Daytime Running Lamps (DRL ...

    Windows
    On vehicles with power windows, the switches are on the driver door armrest. Each passenger door has a switch that controls only that window. Press the switch to lower the window. Pull the swit ...