See also:

Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. Engine ...

Windshield Wiper Blade Replacement
Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance. It is a good idea to clean or replace the wiper blade assembly on a regular basis or when worn. For pr ...

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 ...