On my tachometer there's a green light that looks like a gauge of some kind. This light has popped up once or twice, but I have NO idea what it indicates. What the heck is it????



(Okay, I guess I COULD walk out to the parking structure in the cold and get my owner's manual, but you folks have way more information anyway.)

 

My guess is that it's the cruise control "ON" indicator. Do you have MFSW? If so, check light function with On/Off switches. If not, um....you got a problem with something that isn't there

 

Rye-
That's EXACTLY what it is. I must've knocked the cruise button on the steering wheel. Thanks!!

 

Really? I thought that was the "honest instrumentation" warning lamp. When on, it means that the dials and readouts can be trusted.