no ,it's on and off . i,ve had the car 2-weeks now and had mot heard it running...i,ve had 4 cadi,s in the past and i know i should have head it by now..so i looked under the hood and it was unhooked so i hooked it back up and it ran 4 a while. b4 it stoped..the tires on it r fairly new so mabe it was unhooked 4 that.....but i just tested it by cutting the switch on and sitting on the trunk and it came on..i guest that means it is allrihgt.....:thumbsup: