A few weeks ago, my thermostat in the radiator was replaced. Ever since, my dash now says "low coolant" even though the coolant level is fine. I can't really find anything on other forums, so here I am...
Any suggestions on what it could be, or needs to be done? It's a 2012 GMC 2500 Denali, diesel.
I'm not super car savy, so if you can "dumb it down", help a girl out, I'd appreciate it! lol
Thanks!
Also, posting this in multiple forums... hope that's not taboo...