Go to the Ink Manager and check it there.
The ink manager is showing just the CMYK, but in the swatches pallet it's still a LAB color
It's because you have a placed file somewhere that has a spot color named PANTONE 370 U. You can choose whether the color will get converted to process or remain spot, but you can't change its name or color definition, unless you delete the links first.
In CS6+ the Pantone spot libraries use the more accurate Lab definitions
Even when I try to import a new color from the Pantone library, the colors are coming in as lab.
That's expected behavior, starting with CS6 the Pantone Solid Ink libraries have Lab definitions. If you want CMYK simulations of Pantone's solid inks you can either do a color managed conversion to CMYK via Ink Manager or by editing the swatch. If there's a placed object using the color you will have to use Ink Manager. The conversion numbers you get will depend on your doc's CMYK profile.
The other option is to use a PANTONE + Bridge library. Those colors are not spot colors and are defined as process CMYK.
Thanks Rob, I appreciate you taking the time to offer some resolutions.
My corporate color is not printing the way it used to. I can’t believe I’ve had CC 2015 for as long as I have and have never noticed this!
I will try some of these to see what the results are.
You can install the legacy CMYK defined Pantone libraries, but you will need an installation of CS5 or earlier in order to get the old libraries:
If you use the Pantone system for picking CMYK colors, Pantone added the Bridge libraries to clarify the difference between spot color and process color usage. However, the new Bridge CMYK values don't match the legacy values.
My corporate color is not printing the way it used to
What is its Pantone number?