Thank you, will give that a try....
Well actually the Ca is for Canada, but good guess though!! I'm near Toronto, and I think I'll wait a little while yet for the temps to rise a little bit (It's been -10 Deg C. here the past week).
Thanks for the advice. I'll give that a try. I'll have a good look at those sensors and give them a good clean out. I think you may be on to something there.
One thing new I noticed is that when the I start the car up, the lights go through the self-check (down, then back up). If I let the car idle for a couple minutes, the lights seem to gradually go higher in small increments every 10 seconds or so up to a certain point. When I start driving, they start dropping. So I think your theory of the car settling while driving and the sensors giving a weird reading has merit.
Will let you all know what I find.