I have a 2019 chevy equinox 1.5 with 160 kms ,The problem i am having is in the winter time i start the car and let it run 20 min and still not heat in car,the temp gage is up to normal.I will only get heat when i drive it about 5 to 10 min.I checked the coolant level and its fine.never overheats and runs great other than this issue.any help to point me in the right direction would be great