Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Do Wipers Work Better With the Defroster On?

Do Wipers Work Better With the Defroster On?

Wipers Work Better With Defroster

It seems that sometimes when you’re driving in cool, wet weather, it’s hard to keep your windshield from fogging up. The wiper blades wipe the windshield but they leave streaks. The outside of the windshield is clean but the inside is all fogged up. What is the best way to keep your windshield clear in cool, wet weather?

Keeping your windshield clean and clear depends on a few systems working together:

  • Windshield wipers
  • Heating and air conditioning system
  • Windshield defogger (defroster)

How systems work together to keep a clear windshield

While it may seem obvious that the windshield wipers, the heater, and the windshield defogger need to operate, air conditioning is also an important factor. Air conditioning does more than provide a cooling effect inside your vehicle. It also removes moisture from the interior, whether the air temperature inside is warm or cool. The drier air helps prevent the inside of your windows from fogging up in any sort of weather conditions. Air conditioning works especially well in combination with the defogger to not only dry the fog from the inside of the windows but to remove it from the cabin altogether.

The windshield defogger blows air directly on the windshield from the dash when the heater controls are set to the defogger setting. The air movement "dries" the moisture from the windshield, and clears the windshield for improved visibility.

The heat from the defroster also melts ice and snow on the windshield to allow the wiper blades to clear the windshield well. Some vehicles are also equipped with a couple defroster lines where the windshield wipers park to assist in melting ice and snow from the windshield in that area. That way the wipers don’t get stuck to the glass and can continue to clear the windshield properly. In that way, the wipers work better with the defroster activated.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...

Related questions

Q: How do I use the rear window defogger and side view mirror defoggers?

Your car is equipped with a rear window defogger, and it may be equipped with side view mirror defoggers (optional equipment). They’re both operated in the same way: Press the rear defogger button to turn both systems on. They...

Q: I was driving to work in a lot of rain and my windshield wipers just stopped in the middle of my windshield. Any ideas what it ma

The windshield wiper system uses a small electric motor to move the wiper arms that you see on the windshield. That electric motor is controlled through a switch, relay, fuse, and wiring. One, or more, of those electrical components has...

Q: Window tint bubbling in rear window will I mess up defrost or antenna remove ingredients it

No, the defrosting mechanism is built into the window and should not be destroyed by removing the tint. As with anything, however, just use caution when taking the tint off.