Q: Defrost button wont come on. Control power button doesnt work.

asked by on

Defrost button doesn't light up or work. The power control button doesn't work either,won't turn functions off. The air conditioning buttons work,the mix for defrost and floor work. The air recirculation button works. It won't switch over to just defrost,and the power control button not working

My car has 108000 miles.
My car has an automatic transmission.

It seems like the defrost of the vehicle has an issue. There are several possibilities that could cause this. The control unit for the climate control system could be malfunctioning. The fuse for the rear defrost could be blown due to some unknown reason. The windshield itself could be damaged and lost connection somehow. I would recommend having a qualified professional who is proficcient in electrical diagnosis inspect your vehicle with a wiring diagram. This will help to determine where the fault in the defrost system is located. Once the issue is found, I would recommend having the issue resolved as soon as possible to prevent any safety issues that could result from lack of clear vision through the rear window.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Defrost button wont come on. Control power button doesnt work.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Does the Defroster Help the Wiper Blades Work Better?

The short answer is no. Wiper blades squeegee water from the exterior of your windshield and the defrosters remove moisture from the interior of the vehicle, which includes the inside of your windshield. Sometimes it may appear the defrosters are...

Q: Idles very rough when heater/defroster is on

Hello, thank you for writing in. The vehicle is put under extra load when the climate control is turned on. The engine is impacted different ways by the different systems. Typically when the defroster is turned on, it uses the...

Q: Lock / unlock buttons not working on key fob.

The key fob may have some broken buttons or the battery could be dying out causing the buttons to not function. If the key fob has been dropped, a contact point inside the electronics on the key fob could have...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.