VDC + Brake + Slip lights ONLY when it's cold.
 

Checked the brake fluid and it's fine. What would cause these lights to come on? Hard to test now, but basically when I was in the mountains or it snows in Denver, the lights turn on. Occasionally the brake like doesn't come on and it's only the VDC + Slip. Anywho... any advice? Going to be hard to check this summer but figure if there's any simple answers to keep in mind that'd be great. Thanks!

Does it have anything to do with moisture, or freezing temps?

If you find the light comes on under freezing, i would suspect water has gotten somewhere where it shouldn't and when it freezes, causes issues.

My suspect would be the ABS sensors and wiring. That's where I would check.


Unsure if this would be of any use to you

http://www.nicoclub.com/FSM/G35/Seda..._Sedan/brc.pdf

You know, it very well could be a moisture issue. It might have done it when it was raining (cold rain, in the 30's and transitioning to snow).

I'll look through the factory manual and maybe take a quick visual peak at the ABS pump/sensors/wiring. Thanks for the direction on that!