Three problems related to horn assembly have been reported for the 1998 Buick Riviera. The most recently reported issues are listed below.
Consumer states horn is inoperable at times, on one occasion he had to hit the horn pad six times before the horn would sound, dealer has repaired/replaced parts on four separate occasions. Fuel gauge sending unit failed. Emergency brake needed adjusted, the pedal was not returning all the way up when it was released.
When trying to blow horn it blows intermittently. Horn has been fixed twice, but problem still exists. Contacted dealer. Dealer found loose horn connections. Whining noise present when turning steering wheel.
Intermittently horn became inoperable, obstructing the driver's safety. Dealer could not find cause of the problem.