Noob with a heat issue

[19POSxxx]

Driving into work today with the wifey’s 19’ Equinox (82k). Heat just stopped working. Blower works, no overheating or seemingly obvious drive-abilty issues. It’s an LS with the single climate control system. Where’s a good place to start looking? Thanks in advance for any advice.

 

[Big Papi]

Check the coolant / antifreeze level for starters.

 

[19POSxxx]

Check the coolant / antifreeze level for starters.

Yeah, I’m going to do that when I get home. Quick question, can I use the dexcool 50/50 orange with this?

 

[ravenblack67]

Yeah, I’m going to do that when I get home. Quick question, can I use the dexcool 50/50 orange with this?

Yes. DEXCOOL 50/50.

 

[ricklack]

Does the temp gauge show normal temp, or a bit low? If low, could be the thermostat is stuck open. Does the upper radiator hose get hot?

 

[19POSxxx]

Overflow tank was dang near bone dry. It wasn’t that low about a month and a half ago when I last checked it. I noticed that the temp was running a bit higher than normal. I asked her if she had any warning indicators go off in the car indicating overheat conditions. She said that she hadn’t heard any. Refilled, and will continue to monitor the situation. Notice no coolant smell, smoke nor fogging of the windows.