Hi all. New to the forum. First post. I'm wondering if anyone has any clue as to the recent barage of intermittent and seemingly random warning messages I'm getting on my 102,000 mile Northstar Eldo? A couple of days ago the "A/C refrigerant very low" message came on, and then went away. however, then the "no charge battery " message started coming on and off w/an occasional "Air Bag"light(?)on the same next drive. Since the date of purchase (10 moago) the red oil can symbol would blink on after an hour of driving but only at idle. If I rest my foot on the gas pedal, say at a red light in neutral, the light goes out.
Outside of the above reported instrumentation issues, thecar performs flawlessly, and is clean. I have heard of another same model year owner reporting similar experiences, and since it is an occasional driver, I've put off service suspecting bad instrumentation as reported elsewhere. Anybody with a little insight before I call Mr. Goodwrench?

Check for codes. Oil light have oil pressure checked with mechanical gauge, over 7psi@idle may just need oil switch.

my 96 eldorado does similair things. When i start it sometimes the battery light comes on and the info says battery no charge. then if it is hot enough when i am sitting idle the oil light flickers and if i let it flicker long enough it says stop vehicle now but runs flawless. When i bought it the airbag light came and went, come to find out the airbag was caused from a faulty car starter. werd