Buick 1998 Century Owner's Manual page 348

Buick dealers have the facilities, trained technicians and
up-to-date information to promptly address any
concerns you may have. However, if a concern has not
been resolved to your complete satisfaction, take the
following steps:
STEP ONE
--
Discuss your concern with a member
of dealership management. Normally, concerns can
be quickly resolved at that level. If the matter has
already been reviewed with the sales, service or parts
manager, contact the owner of the dealership or the
general manager.
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