u/Active_Cabinet4921

On my way home from work my blazer wasn’t connected to any internet it was in offline mode. Sometime on my drive home the gps glitched out now it says i about 9 miles from for original position and the blind zone steering assist system is not working what so ever. I have let the car sit and cool down i have reset it, i have even updated the system to the new V661.10 and still nothing. can anyone help?