181 North Railways Street, Okotoks

Car Care Tips

In a Fog (Fogged Windows in Cold Weather)

Tuesday 21st of March 2023

It's bad enough in cold weather when ice and snow block your visibility.  Add to that fog on the inside of your windows and you could be driving blind.  So here are a few tips on how to keep your windows from fogging up when there's a chill in the air.

You probably know fog is really condensation, when moist, warm air meets a cold surface and turns to liquid.  If your windshield fogs up, you probably turn on your windshield defroster. Most defrosters blow heated air on the windshield glass to warm it up so it won't condense the moisture.  Many also turn on the air conditioning to reduce the moisture. 

That same strategy can work on the rest of the windows.  First, turn up your heater's temperature setting.  The hotter the air, the more moisture it will hold.  Also, turn off the "recirculating" setting since you want all outside air to come in. Then switch on the air conditioning.  It will remove the moisture from the outside  air that it's blowing inside the cabin.  Try cracking a couple of windows to make it easier for the air to flow. This should do the trick pretty quickly. 

There's one other thing to try.  Many vehicles have electric heater elements embedded in the rear window glass (the rear window defroster) and in the outside rearview mirror glass. Make sure to turn those on, too; sometimes they're on the same switch.

For all of these things to work, of course, your vehicle's components have to be maintained so they'll do the things they're designed to do.  And you didn't think it was important to have your air conditioning working in the cold weather months! 

One final tip.  Keep the insides of your windows CLEAN.  Oil and dirt on the glass give the water molecules something to latch on to.  That ought to clear up this problem.

Give us a call, or visit us at our Lube Town website.

For service on demand, simply drive right up to any of our service bays.

No appointment is ever needed

  • Lube Town Macleod - 4007 Macleod Tr SW Calgary, Alberta 403-457-3500
  • Lube Town Parkdale - 10 Parkdale Cres NW Calgary, Alberta 403-283-3393
  • Lube Town Okotoks - 181 North Railway St Okotoks, Alberta 403-995-9565

181 North Railways Street, Okotoks