Heat keeps getting redirected to floor vents with dash vents selected

Admittedly it doesn't get anywhere near as consistently cold here but I have never had mine kick back into auto or direct to the floor vents when heating. Also I would never heat the car to such a hig temperature, 71 F at the most.

 

once you use auto, it seems you have to turn the fan off to clear auto from memory. then you can turn the fan back on and use it manually. pretty sure the gen II was the same way. as far as seat warmers, mine heat up in 30 to 60 seconds.

 

Yea, the seat warmers come right up in mine, too.

 

Seat warmers are fast in mine and have never had a problem with the HVAC having a mind of it's own (except when I want it to in auto).

 

I guess my PiP is still too new - where would I find the engine temp readout? Also, please explain what you all are doing when you block the lower grille, what material and how fixed in place. Thanks.

 

For engine temp, you need a Scan Gauge II or an OBDII reader and an app for a phone/tablet to read the output.

Grill blocking is covered extensively in the forum.

 

Engine coolant temp read in Torque on my smart phone using a plug in device that plugs into service plug under dash. Grill block, I use inch and a half pipe insolation stuff into lower grill.

 

i use 1/2" foam copper pipe insulation. $2. for four 3' pieces at hd or lowes. cut to length, open precut lengthwise slit and hold upto the grille. mark the spots where the grille has vertical stabilizers and slice about halfway thru the foam in those spots so it will slip in deeply enough to be snug. the trouble spot for me is the front license plate holder. i just stuff a short piece on either side.

 

bisco, Lourun - thanks for taking the time to provide a few details, it's always helpful for the newbie. It appears that a lot of forum members are men of few words.

 

no prolemo. sometimes, we just get tired of ansering the same ol' questions. i like the simple ones tho, that's about all i can handle! besides, who can refuse bilbo bagginses?

 

I still have a pack of the copper pipe insulation in the garage for the TDIs. If it ever gets really cold around here for a while, I'll have to break them out.

 

My suggestion to search regarding the grill blocking was because there's a number of methods and parts utilized by various members of the forum so you can pick what suits you. Sorry if it seemed terse or lacking helpfulness.

And your welcome for the info regarding the Scan Gauge II and/or OBDII reader.....Jeez

 

Try this.
Who will be grill blocking soon? | Page 3 | PriusChat

 

The climate control system in the PiP does this kind of bizarre thing constantly. You've only stumbled on one case. Wait until it starts switching your vents from recirculate to outside air every time you press the AUTO button, or better yet, doing the same thing when pressing the OFF button. My favorite annoyance is when you press the filter button and after it runs for its programmed period of time it helpfully switches your vents to outside air so you can recharge your interior with all the stuff you just filtered out.

 

Sounds like you guys need the system checked out. There are plenty of examples on here, including mine, where the AUTO acts exactly like it should.

 

I assume the "filter" button is in the Advanced only...?

 

It's in every Prius from 2010 on.

 

to the right of the air direction button. i tried it once, it's just like auto, fan goes to high, sounds like a jet engine, never used it again.

 

It's quite effective. I use it to stop dust getting in when cars pass on dirt roads and I use it when travelling long freeway tunnels. As well as filtering it completely stops outside air from entering. The three minutes is usually enough. A few time while travelling the wife has reacted to outside allergens and filtering has helped clear those. I agree about the noise which is why I don't use Auto.