A/C compressor is off, how you reset it from the inside?

Tiny
TODD GRADY
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • 4.8L
  • V8
  • 2WD
  • AUTOMATIC
  • 175,940 MILES
A/C won't come on, says on the dash ac off low coolant. Can it be reset from the inside of the car?
Tuesday, June 15th, 2021 AT 5:46 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Can you get a picture of the warning message that you are seeing?

I am not familiar with one that says the A/C is off due to low coolant. However, these messages cannot be reset. The issue needs to be corrected and the sensor will turn the light off.

However, if the AC is shut off due to the low coolant then we need to check the coolant level and make sure it is full.

If it is full then you may have a sensor issue where it thinks the coolant is low when it is not.

Here are some guides that will help with this:

https://www.2carpros.com/articles/radiator-pressure-test

https://www.2carpros.com/articles/car-is-leaking-coolant

Please let us know if you can get some pictures of this and we can go from there. Thanks
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Wednesday, June 16th, 2021 AT 6:45 PM

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