One problem related to ignition has been reported for the 1999 Buick Lesabre. The most recently reported issues are listed below.
The contact owns a 1999 Buick Lesabre. The contact stated that while having maintenance performed for an oil leak, the technician noticed that the ignition switch cable was fractured causing the security system and electrical system to malfunction. The technician stated that the ignition switch needed to be replaced. The vehicle was repaired. However, the contact mentioned that after the repairs the vehicle failed to start until after several attempts and in several occasions it stalled while driving. The vehicle was taken back to dealer. The technician stated that the electronic part in the ignition was not communicating with the key. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 140,000.