Acura tl A/C stops working from time to time

built into the motor is a resistor pack and this i suspect is your problem

you need to just replace the unit, Acura is having a problem with someof these radios units goign bad, sorry to hear that

try checking the fuse if that is not the problem then replace the blower motor resistor located on the heater box neer the blower motor on the passanger side under the dash

This is a problem you will to take to a shop, If you are mechanically inclined I can help you, but if not I would not mess with it, it could be the button or it could be the controller and could even just be a fuse, check the fuse and if you don't find the fuse blown then let me know if you have a volt meter and what to test this yourself. You are going to be working around the air bag too and if you probe the wrong wire while testing you could break your arm or leg by deploying the air bag by accident. Or your neck.

your probaly are starting to run lo on a/c fluid. u cant fill it upp your self go tho a mecanic and the can open it upp and refill itt four you

replace the climat control.(over the radio on the dash).

the heater core could be clogged you might again check your coolant level just to be sure its full

it's a wire from under the dash it usually burns out after awhile,i had the same problem email me at [email protected] for more info on the wire i forgot the name for it.

To change cabin air filter on Acura TL firs time you need to open the glove box and then remove the arm that holds the glovebox. Press the 2 sides of the glovebox to take this out like in picture bellow.
Acura TL 2004-2010 cabin air filter location
After do this you can see and locate the cabin air filter housing cover.
Acura TL 2004-2010 cabin air filter housing cover
Push the 2 tabs from the filter frame to unhooking from the housing cover. Take the frame out and replace the old cabin air filter with the new one with the air flow indicating arrow pointing down.

Acura TL 2004-2010 reinstal the air cabin filter

check the fuse and the relays for the fan motors.if thats ok check to see if it is vacuum operated controls and that none of the pipes are off or split.