buttons

What is this Button For ENG/MET . its to the left side and its elongated in shape with this writing on the bottom and at the top it says TRIP OD so I figure that's just to set the trip indicator to zero again but the bottom puzzles me and there is no written indications in between the trip...

I have a 2010 Lacrosse that I just love. I have the HK stereo and it is awesome! In the last couple of weeks, the Tone button stopped working. Next, the temperature control button on the driver's side stopped working. After that, the button that allows you to change where the airflow goes...

When I start up the car, the last radio station plays, but the radio button does not always highlight. It happens randomly. The radio module and radio control assembly have been replaced. The radio has been reprogrammed with SPS. HMI module has also been reprogrammed. I drove 15 miles from...