The family posted this information on Reddit:
INFO FROM THE FAMILY:
MONDAY MORNING UPDATE: They have now been pinged in Idaho. I have shared with the Idaho subreddit.
***UPDATE! First of all, I can’t thank you enough for the shares and messages...I have been sifting through them while Greg is in Austin with the police. We have been able to verify a few things. They were seen together Thursday night and we have managed to get a GPS on the KIA that is now in Colorado. Both phones seem to be there but both are turned off. License Plate VFS7528 White Kia Carnival. I have added a picture of what that looks like to this post. I have also been in contact with her ex-boyfriend’s father and he is being helpful and we are working together to keep each other in the loop. Please continue to pray for the safe return. Thank you all so much again.