AC light flashing

SAMM68

MEMBER
2011 BUICK ENCLAVE
6 CYL
AWD
AUTOMATIC
65,000 MILES

A/c light blinks 3 times. Outside temp currently 88 degrees. Tried putting it in Auto climate control and also front vent manual, none of the configs work but worked just fine in the fall prior to winter. The only thing that has happened under the hood of the car since then was an oil change at Valvoline and I added coolant because it was oddly low just prior to winter.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,448 POSTS

Hello,

The air conditioner light is flashing becasue there is a problem with the system. It is most likely the freon level is low. Here is a guide that will help you find out if this is the problem.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

If this checks out then you probably have a blend door actuator that has gone out.

Here is a guide to fix that as well.

https://www.2carpros.com/articles/replace-blend-door-motor

There is a scan tool that will need to be used to get the specific code from the system to be sure.

https://www.amazon.com/gp/product/B00V2SF6N0/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B00V2SF6N0&linkId=a5632d5bcc780fef1b6fc88ee6657753

Here it is for 120.00 bucks

Please let us know what happens.

Best, Ken

AC light flashing

1 Reply

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