Defroster Not Doing Its Job in Your Vehicle?

Defrosters don’t get a lot of consideration, until they aren’t working well.

The big surprise about defrosters is the system that drives it… the air conditioner.

It is your air conditioner that helps to get the moisture out of the air (and off the windshield). When you turn the defrost on, it’s your air conditioner that kicks in to help get all that moisture out. So, if your air conditioning is not functioning properly, you’re not going to have a good defrost during those dark, cold, early mornings. 

Do I really need to fix my AC in December? 

If you’re noticing that you’ve got a wimpy defrost, yes, please consider it. 

Let’s talk for a second about the rear defrosters

It’s really important that your rear defrosters are working properly… and we are happy to test whether or not they are.

A bigger issue… maple donut smell in your cabin

It may sound nice at first, but if your car’s cabin emits a sweet, maple-donut scent on its own, with no pastry bag or pink box in sight, it could be that your heater core is going bad.

A heater core is for the heating system. When it’s leaking it can potentially leak into the inside of the car. And you don’t want to be in a contained space when there is an antifreeze leak… it’s a poison.

Main takeaways in this post are: 

The defroster removes moisture with the help of your car’s air conditioner

Get your rear defroster checked next time you’re here

Maple-donut smell in the cabin of your car? Bring it in to us at Tom’s.

More posts about heating and cooling systems are here.

Schedule your next service with Tom’s Automotive Service today.

Our Reviews

Tom's Automotive Service
Reviewed from Google

4.7 out of 5 stars

Joan McCoy
Joan McCoy

5 out of 5 stars

posted 1 month ago

Great service. Everyone is so professional - I know exactly what they are going to do and how much it costs. It is so helpful that they call and remind me when my car needs service, and then they send me a thank you note after the service. They also offer a shuttle that will take you home.

Jeff Dixon
Jeff Dixon

5 out of 5 stars

posted 3 months ago

I have been going to Tom’s for a while now to have my 2006 Scion worked on. They do quality work and at a good price. Very professional and honest, great staff to work with. I am saddened that I am moving down to Arizona at the end of the month and will no longer be able to have my car serviced at Tom’s. I hope I can find a new one like them down there. Thanks for all your services over the years. Jeff