Problems with anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The key and ignition lock cylinder should be replaced to correct this condition.
Car Problem Reports
Cadillac Seville SLS Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key
Cadillac Seville SLS Problem
Average Mileage: 132,906 mi (71,000 mi - 190,000 mi)
Visitor, 1997 Cadillac Seville SLS, 71,000 mi
also have a starting problem after anti theft system