- 2018 CX-5 Sport
I have a temp gauge...no lights. I'd imagine one of the apps I have measures coolant temp.
I'm still waiting for ScanTool to release the Mazda-specific PIDs for the 2019 model year ($9.99 to buy that software). They say that there's a delay on Mazda's side this year in getting them the data. I can't imagine what the problem might be...the major changes due to cylinder deactivation should have flushed through the 2018 software.
It's weird that the instructions cite a specific temp for tranny fluid with no suggestions on how to determine it.
Since there is no worry about the trans being over filled and you didn't do a transmission fluid replacement, you can just drive the car until the needle is at normal operating temperature and then check to see if the level falls somewhere between the marks. If it looks low then use a reader and get the trans to the exact temperature and check it. Mine has a temperature gauge too, I prefer it over a dummy light.