Q: Air conditioning is pretty much useless

asked by on

The AC in my 2012 GMC Acadia works intermittently and the AC light will light up on the dashboard right before it fizzles out. I am pretty sick of having this reoccurring problem at 59,000 miles. Is there a part that would fail and make it turn on the AC light then stop working right after?

The A/C indicator light blinking is an indication that the system is low on refrigerant or a defective pressure sensor or wiring issue. The way you described your problem is that it is an intermittent one. The fact that your system works fine at times tells me that most likely your system is not low on refrigerant but instead a sensor or your wiring is the issue. The system has a pressure sensor mounted to the A/C compressor which senses the pressure in the system and if defective could cause the erratic signal causing low pressure indication when the system is not low on refrigerant. I recommend you contact YourMechanic to have a thorough A/C diagnostic test and computer scan for A/C codes. The technician will confirm A/C pressures are normal and electrical wiring is not damaged to the A/C pressure switch. They will then scan the computer and check for A/C codes and diagnose as needed to give you a repair solution to fix your problem.

Was this answer helpful?
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. Air conditioning is pretty much useless

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: A/C light turns on

Hello there, thanks for writing in about your 2016 GMC Canyon. When the Air Conditioning Light is on like this, it is indicating that there is some fault in the system. When this occurs, it could be anything from a...

Q: Brake malfunction dynamic drive on 2005 BMW 745Li

Hello. It sounds like your 2005 BMW 745Li may have a problem with your electric/charging system or that the battery is faulty. If the electric/charging system is charging too low, it will cause the electronics to go “haywire” because the...

Q: 2003 gmc sierra stalling

Hi there. Once running, the engine requires a constant flow of gasoline and good spark to keep that fuel igniting. If gasoline is not readily available, or if there is not enough spark, the engine will quit. More modern vehicles...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...