Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.
See also:
Customer Assistance Offices (U.S. and Canada)
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
Buick Customer ...
Sun Visors
Pull the visor toward you, or move to the side to help
reduce glare.
On vehicles with a lighted vanity mirror, lift the attached
cover to use. ...
Engine Coolant (4.6L Engine)
The cooling system in the vehicle is filled with
DEX-COOL® engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first ...
