Why Air condition won't blow cold air on 2010 chevy malibu hybrid. on 2010 Chevrolet Malibu

Took it to a mechanic and he checked the pressure and said it was too high and suggested I take it to dealership. What could possible be the problem and what estimated cost would I be looking at? Thank you.

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1 answer
could be a cooling fan issue, poss under warranty at dealer