Do you shut the A/C when powering down the car?

I've only been driving a Prius for a week, and no, I haven't found it necessary to shut off the A/C when shutting off the car. I do shut it off with my other cars.

 

<div class='quotetop'>QUOTE(Marvinh @ Jul 19 2007, 06:26 PM) [snapback]481942[/snapback]</div>

My 04 with almost 60,000 miles has been driven with Auto/AC on for most of those miles. No Problems.

"With the Prius and the electric operated A/C is it still necessary? " No

"Does starting the Prius with the A/C on put any stress on the ICE or electric components of the A/C?" No

 

There is no reason to shut off the A/C, unless you don't want it on the next time you drive. Like most modern control systems, the Prius takes care of the details for you.

Tom

 

One good reason to turn off the air before the car is to prevent mould in the ducts. Circulating some warmer air through the system to clear any condensation can alleviate some pretty nasty smells. It helps to run the air occasionally in the winter, too, to keep the seals lubricated.

 

<div class='quotetop'>QUOTE(hyo silver @ Jul 20 2007, 02:16 PM) [snapback]482349[/snapback]</div>

The recent cars I have owned run the AC automatically in the winter when the defroster is on. I think the Prius also does this. So I would not think it is nescessary to take special effort to turn it on yourself in the winter.

 

I've always turned off most everything before turning off the car.
That way, when I start it next time, I won't be hit by a blast of air, music, headlights, wipers, etc., and I can turn things on as I'm ready for them.

Dang, I feel old. I was thinking about where I got this habit, and it harkens back, yet again, to my years in the frozen tundra, where you reduced the load on your car as much as possible when starting it, because the extreme cold shortens battery life. Also, that first blast of air out of the heater will be FRIGID!
Also, if there is nothing else running, you can actually hear if the car started (not an issue with the Prius, of course), and if it is running correctly (ditto), or if it sounds like it's chugging off-balance (not unusual in the frozen north, with ICEs) and will have to be turned off, and then started again.

I rather like starting my Prius up, hearing that friendly READY beep, and then the quiet. I turn on and then adjust the heat/AC as needed. Then I'll get the music going.

 

Technologically, most times, my car is smarter than I am. If it needed to be turned off, I think the car's computer would do it prior to turning itself off...

So, I'd say you can if you want, but me personally, I don't bother. And here in sunny FL, the sooner I get the AC going, the happier I'm going to be....

Sure, if your battery is weak, turn EVERYTHING off (including lights, overhead light from the door, etc) to minimize load. If you want to 'reset' it between uses, well, you can do that to...

I'm just too lazy.

pat