VDC light won't go off. This is the first time this has happened. It is really cold out. Would that have an effect.

See if the following information helpful:
1. Keep an eye on the dashboard for the indicators marked "SLIP" and "VDC Off" which will tell you the status of the computerized handling system if handling isn't normal. "SLIP" will blink when VDC is operating. "VDC OFF" means the system is off. Turn the VDC system back on if the Nissan's handling is poor by pressing the "VDC Off" button until the light goes out.

2. Adjust your driving if "SLIP" comes on. "SLIP" means the road conditions may be slippery. The VDC aids in steering and stopping, but be careful, even if VDC is engaged.

3. Remove any aftermarket suspension parts like enhanced shock absorbers if the "VDC Off" light comes on and handling is bad. The VDC system is geared for stock equipment and tires only. Use winter tires or snow chains on snow-covered roads. VDC won't substitute for the correct winter equipment.

4. Don't drive on very inclined corners with high banks and leave the VDC switch on if the handling is poor with VDC on. The system can't operate properly in that environment. Disengage VDC, or avoid those kinds of roads.

how cold is really cold.
50f
-20F? what?

double post?

it often happens in the winter, naturally, the cold weather will have some effect on all the car's system, especially the battery and cooling system.
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Easy to get a MST-3

Could be corroded battery terminals/ cables..actually happens all the time.Dumb question but...Is it a new battery?, Is it the proper amount of cold cranking amps? also , i have found that for some reason with cars there is a domino effect when it comes to parts breaking down, with that being saidwww.automd.com has a trouble shooting program to help with starting issues (for future reference of course)...too many reasons for no starts but here is the dumbest....sometimes batteries actually go dead on the shelf before U buy them,especially @ walmart..so make sure you have the store test it first I f you can't. Hopefully It starts now ,if not please let us know a little more about this.Good Luck

The next time it won't start check the fuel pressure, bet there is none.

i'me asumeing the batt is ok....turn on lights, do they dim when you try to start engine? if not .bad selonoid on new starter..was it rebuilt? it happens. Billy Starr

One reason GM vehicles dont start, especially when the weather changes isdue tofaulty antitheft systems. Next time this happens, look for a light on the dash that says secury or antitheft. Picture might look like a car with a padlock thru the window, If you see any of these lights, that will explain why it doesnt start. This link explains. http://vatspasslockpasskeysecurityhelp.yolasite.com/

if it turns over there are a cocuple of things to check. crankshaft sensor and the coil pack maybe the computer.id start with the crankshaft sensor