Where is the security sensor located at in 1997 Buick Riviera The security light usually blinked on and off when getting in the car now it will blink and then stay on and the car will not start until?

Answer 1

Usually in the ign lock cylinder if you have the VATs type key with the resistor in the key. The wires attached to the key lock cylinder often break. If you have the "pass key" type without the little resistor chip then it is different. But it also usually involves removing the key lock cylinder.