Three problems related to ignition module have been reported for the 1999 Buick Regal. The most recently reported issues are listed below.
Car just randomly quits. I pull over and it restarts . Also it is at different times. Doesn't let the key out of the ignition.
1999 Buick Regal abs light and check engine light come on when you press on brake and intermittently all dash warning lights will come on. The brake module, connector, heat/air control display would become bright and then go dark. The dealer replaced the control head. The ignition switch was replaced.
(12-06-05) 1999 Buick Regal check engine and anti lock light came on. Consumer had to replace brake module. ** answer required*** the heating and air condition display would light up and then become dark. The mechanic replaced the control head. The consumer experience starting problems which resulted in a new ignition switch being installed.