One problem related to cruise control has been reported for the 1999 Buick Century. The most recently reported issues are listed below.
When driving on highway with cruise control engaged and when attempting to disengage cruise control, it would not disengage, causing unwanted accleration, vehicle continued to gain speed. In order to stop vehicle, consumer had to remove key from the ignition and place vehicle in neutral. Consumer has contacted dealer. Dealer has ordered parts from the manufacturer. Please provide any further details.