my car is a 2013 gmc terrain, have had 2 large pack rats get into the car , coming in from the engine and into the glove box and in the back of glove box and down into the vent into the car, ate wires

Put rat traps with peanut butter on the bate holder and rat poison with peanut butter mixed in. If you have cats, place it so they will not get the poison. Then again, if you have cats and let the rats roam around your Jimmy, they're worthless anyway. It may be a bit of a bother, but calling a taxies or Uber to get to work is a bother also. There are rat bate boxes that traps the rats inside and does not hurt them if you are a rat lover.