Skip the auto shop - Our mechanics make house calls

Q: A/C light turns on

asked by on

My air conditioning light randomly turns on by itself after I start up my engine, let it warm up and before turning on the fan. I just bought my Canyon last November. I’ve heard that this is way its’ suppose to be. Do you know if this is correct? Thanks.

A: Hello there, thanks for writing in about yo...

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 low voltage to an AC blend door. Since your car is still fairly new, you can bring your car into the dealer to see if there is any repair that is covered by warranty. If you would rather have an independent mechanic take a look, a certified technician from YourMechanic can determine what codes the AC system has and diagnose the fault from there.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Fuses keep blowing out

I think you may be correct. There are hundreds of wires behind your dash that could potentially intersect and cause problems. Most likely, two different circuits that run different amounts of amperage have intersected, and are now causing circuitry issues....

Q: on/off humming sound over 60mph

Since the car is new and under warranty, the Honda dealer should be able to help you out with this. If it's a noise that's more obvious over rough or course pavement, and less so on smooth pavement, it can...

Q: ABS and Brake lights come on while I'm driving

This could be an issue in the ABS control unit. Faults need to read out in order to determine if the problem lies in the ABS unit or if it is a sensor or valve issue. You may need to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...