Perhaps someone can answer my question: Does the the AC run all the time the TL is running?

I have searched the manual and think that Acura has got the system set so that it's always running, mostly for dehumidification. FWIW, I generally have the HVAC system set on "AUTO" so might expect that it would always attempt to keep the set temperature level and (perhaps) humidity level in the interior.

Symptoms: 1) at a stoplight, I can feel the cycling of the compressor; and 2) gas mileage jumps up when I shut off the entire HVAC system.

If anyone has knowledge and/or ideas about this, I'd like to hear them.

TIA - JG

 

there should be a switch on the dash to turn the compressor off. there is on my 09.

 

^

 

I've notice this also, thought I was going crazy but I'm constantly turning the AC off.

 

^^ Mine does that too. I think the default is to have it on...I always make sure I press the on/off button to make it sure I deactivate the AC.

 

If the HVAC is set to "AUTO", the answer is Yes.

In "Auto", the A/C is constantly running. The computer controls the "air mix door" that functions to regulate the amount of ice-cold (A/C) air and hot (engine) air being let through and mix together, according to the preset temp as selected by the occupancies.

The only way to turn off the A/C is to press the A/C button, until "A/C off" is shown on the HVAC display.

 

Yeah, it's a Honda thing.

 

Y'know, I used to be a trained investigator, but somehow the clearly-marked "A/C" button on the lower right of my center stack completely escaped my notice. I just now walked out to the driveway, got in and looked. Jeez, what a dummy I am. Thank you again to all who straightened me out about this!

FWIW, for years I have used the expression: "Lights on...nobody home." Now it applies to me.

 

So u will lose mpg if u don't turn the ac button off

 

Yep, the 3.7 gets thirsty and your MPG start to suffer.