what is the problem when 2007 cadillac escalade wont shut off. on 2007 Cadillac Escalade

the problem occurs after i put it in park and take key out , the truck wont shut off then the check engine light comes on!!!

by in Fall River, MA on November 09, 2012
3 answers
ANSWER by on November 09, 2012
scan codes and post so we can adv
ANSWER by on November 10, 2012
what codes?
ANSWER by on June 10, 2013
Just had the same problem with my 2007 Escalade EXT. I was told that my ignition modules are bad. Having both replaced now and due to this replacement you must have new keys programed. It's running me around $800 through a personal mechanic.