Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 -

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 02-07-2011, 12:21 PM
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Dec 2010
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1357
Marky is on a distinguished road
Recirculate Mystery Logic

What's the logic around the Recirculate button? I've read the manuals, but I've yet to really grok the whole thing. Or maybe I have, but the logic is just odd...

For example, you're in full auto and you push recirc. it blinks at you and doesn't change modes. So you hit the button to redirect the heat out the dashboard vents and then hit the recirc button again. Now it works. But it also turns on the A/C for unknown reasons. So you turn off the A/C and then hit the Auto button. Now you're in full auto with recirc. How come I couldn't do that from the beginning with one button push?

It's a drag because I'm regularly in long tunnels (heading out of Manhattan) and switching to recirc requires quite a few clicks on the hvac control panel. And at this point I still have to look at the panel to get the combo right. I guess eventually I'll be able to do it via muscle memory, but right now the switch over really takes my attention away from the road. And at the entrance to a tunnel with all the merging you really need to pay attention.

Can anybody explain the recirc button's logic to me?
__________________

__________________
Reply With Quote
  #2  
Old 02-07-2011, 12:42 PM
blackpepper's Avatar
Senior Member
My Jeep: 2009 6.1L WK
 
Join Date: May 2009
Location: SF Bay Area
Posts: 6,435
Thanks: 67
Thanked 38 Times in 27 Posts
Rep Power: 13396
blackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond repute
Re: Recirculate Mystery Logic

First of all, I have the same "issue" with the WK

I think that when auto is initially turned on, it is on defrost mode to clear the windows and then after some time you can turn it to recirc mode if you wish. Recirc mode doesn't work when the defroster is on, so that's why (I think) auto mode locks you out of that option until a certain amount of time has passed.
__________________

__________________
Ryan
2009 SRT8 - loaded, corsa exhaust, afe stage ii intake, diablo intune w/ Johan toona, vreds 275/315, r1 drilled/slotted rotors, stoptech pads, lockpick adapter, billet tech catch can, 180 tstat, eibach springs, bwoody links, stage 6 qa1 shocks, tail light tint, front window tint, stillen hl brows, lloyd mats, powder-coated alcoas, red srt lettering, trim color-matched...

2007 Jeep 5.7 Limited - 120,681 miles, one owner. SOLD
Reply With Quote
  #3  
Old 02-07-2011, 01:07 PM
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Dec 2010
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1357
Marky is on a distinguished road
Re: Recirculate Mystery Logic

Thanks, I think you're on to something....

From the manual:

Quote:
• Most of the time, when in Automatic operation, you can temporarily put the system into Recirculation mode by pressing the Recirculation button. However, under certain conditions in automatic the system is blowing air out of the defrost vents. When these conditions are present, and the Recirculation button is pressed, the indicator will flash and remain off. This tells you that you are unable to go into Recirculation mode at this time. If you would like to go to Recirculation mode, you must first move your mode knob to Panel, Panel/Floor, or Floor, then press the Recirculation button. This feature will reduce the possibility of window fogging.
And this:
Quote:
Recirculation
This button can be used to block out smoke, odors, dust, high humidity, or if rapid cooling is desired. The Recirculation mode should only be used temporarily. The button includes an LED that illuminates, which indicates that the Recirculation mode is active. You may use this feature separately.
NOTE: Extended use of recirculation may cause the windows to fog. If the interior of the windows begins to fog, press the Recirculation button to return to outside air. Some temperature/humidity conditions will cause captured interior air to condense on windows and hamper visibility. For this reason, the system will not allow Recirculation mode to be selected while in the defrost or defrost/floor modes. Attempting to use Recirculation while in these modes will cause the LED in the button to blink and then turn off.
My next question is, why can I never get to Recirc when in Auto mode? Am I such a heavy breather that my windows are always being defrosted!! I don't hear any Defroster action. And I think I can only get it to switch to Recirc in Panel mode -- not Foot mode. But I'll double check that next time I'm in the car. And why does hitting Recirc turn on the A/C?
__________________
Reply With Quote
  #4  
Old 02-07-2011, 01:18 PM
blackpepper's Avatar
Senior Member
My Jeep: 2009 6.1L WK
 
Join Date: May 2009
Location: SF Bay Area
Posts: 6,435
Thanks: 67
Thanked 38 Times in 27 Posts
Rep Power: 13396
blackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond repute
Re: Recirculate Mystery Logic

Good info

I think you just need to be patient.. it works for me after some point in time, I'm just not sure when that time is

The recirc probably turns on the A/C due to the rapid cooling people desire, or the A/C does a better job at filtering out particles such as smoke, odors, dust, high humidity.
__________________
Ryan
2009 SRT8 - loaded, corsa exhaust, afe stage ii intake, diablo intune w/ Johan toona, vreds 275/315, r1 drilled/slotted rotors, stoptech pads, lockpick adapter, billet tech catch can, 180 tstat, eibach springs, bwoody links, stage 6 qa1 shocks, tail light tint, front window tint, stillen hl brows, lloyd mats, powder-coated alcoas, red srt lettering, trim color-matched...

2007 Jeep 5.7 Limited - 120,681 miles, one owner. SOLD
Reply With Quote
  #5  
Old 02-07-2011, 01:28 PM
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Sep 2010
Location: Ottawa, Ontario
Posts: 962
Thanks: 32
Thanked 9 Times in 8 Posts
Rep Power: 2874
Cherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond reputeCherodude has a reputation beyond repute
Re: Recirculate Mystery Logic

The outside air temperature likely has some effect on where Auto mode directs its air flow. In winter, it may often be directing a small amount of the airflow to defrost, just to keep windows from fogging -- hence the problem getting Recirc to take hold while in Auto. It may direct the airflow differently when it is warm outside.
__________________
Reply With Quote
  #6  
Old 02-07-2011, 01:28 PM
VermontHobbit's Avatar
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: Oct 2010
Location: Colchester, VT
Posts: 69
Thanks: 3
Thanked 1 Time in 1 Post
Rep Power: 1431
VermontHobbit is on a distinguished road
Re: Recirculate Mystery Logic

This seems to be a bit of a sad case of the engineers at Chrysler deciding what is good for you... rather than making the system obey your commands. Don't feel bad, the Airbus you flew on last has the same subtleties in its flight control software
__________________

'14 Overland Hemi - Granite Crystal Metallic/Indigo Blue+Brown OR-II ATG Chrome [Ordered]
'11 Overland Hemi - Dark Charcoal Pearl/New Saddle OR-II AAC
'02 Overland 4.7L/HO - Onyx Green Pearl Coat [Past]
'97 Porsche 911 C2 - Speed Yellow
'00 Limited V8 - Taupe Frost Metallic [Past]
'95 Limited V8 - Moss Green Pearl Coat [Past]
Reply With Quote
  #7  
Old 02-07-2011, 01:32 PM
blackpepper's Avatar
Senior Member
My Jeep: 2009 6.1L WK
 
Join Date: May 2009
Location: SF Bay Area
Posts: 6,435
Thanks: 67
Thanked 38 Times in 27 Posts
Rep Power: 13396
blackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond repute
Re: Recirculate Mystery Logic

Auto mode is by definition, auto mode.. if you want the system to obey, turn off auto mode set it to your liking!
__________________
Ryan
2009 SRT8 - loaded, corsa exhaust, afe stage ii intake, diablo intune w/ Johan toona, vreds 275/315, r1 drilled/slotted rotors, stoptech pads, lockpick adapter, billet tech catch can, 180 tstat, eibach springs, bwoody links, stage 6 qa1 shocks, tail light tint, front window tint, stillen hl brows, lloyd mats, powder-coated alcoas, red srt lettering, trim color-matched...

2007 Jeep 5.7 Limited - 120,681 miles, one owner. SOLD
Reply With Quote
  #8  
Old 02-07-2011, 01:53 PM
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Dec 2010
Location: Columbia, MO
Posts: 265
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1557
mrpositraction is on a distinguished road
Send a message via AIM to mrpositraction
Re: Recirculate Mystery Logic

Quote:
Originally Posted by blackpepper View Post
Auto mode is by definition, auto mode.. if you want the system to obey, turn off auto mode set it to your liking!
LOL!!!! What? That would be rediculous
__________________
2011 Jeep Grand Cherokee Overland, 5.7L Hemi, 730N, Offroad Package II
Quote:
Originally Posted by jpsmith View Post
No need for decaf. The is the internet. When people challenge you, you have to fly way the hell off the handle. If you don't, you're doing the internet wrong.
Reply With Quote
  #9  
Old 02-07-2011, 01:54 PM
blackpepper's Avatar
Senior Member
My Jeep: 2009 6.1L WK
 
Join Date: May 2009
Location: SF Bay Area
Posts: 6,435
Thanks: 67
Thanked 38 Times in 27 Posts
Rep Power: 13396
blackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond reputeblackpepper has a reputation beyond repute
Re: Recirculate Mystery Logic

Just sayin'....
__________________
Ryan
2009 SRT8 - loaded, corsa exhaust, afe stage ii intake, diablo intune w/ Johan toona, vreds 275/315, r1 drilled/slotted rotors, stoptech pads, lockpick adapter, billet tech catch can, 180 tstat, eibach springs, bwoody links, stage 6 qa1 shocks, tail light tint, front window tint, stillen hl brows, lloyd mats, powder-coated alcoas, red srt lettering, trim color-matched...

2007 Jeep 5.7 Limited - 120,681 miles, one owner. SOLD
Reply With Quote
  #10  
Old 02-07-2011, 03:13 PM
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Dec 2010
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1357
Marky is on a distinguished road
Re: Recirculate Mystery Logic

Hmm...in my old vehicle the Auto mode was smarter. One button click on Recirc did what it is advertised to do. And in an emergency odor situation (all too common here in the big city -- but probably not unfamiliar to people in pig farming communities) where seconds count - that one button cabin sealing is awesome.

The point about the A/C turning on is that it happens when you are NOT in Auto mode.

The engineers could have done better on this one. Certainly not major, but one of these days when I'm texting on my phone as I approach a tunnel and reach for the control panel to do the complicated finger dance to get into recirc I'm going to crash. And when I do, my lawyers will be on Chrysler so quickly...
__________________
Reply With Quote
  #11  
Old 02-07-2011, 03:27 PM
Senior Member
 
Join Date: Sep 2010
Location: brOOklyn
Posts: 1,236
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 2671
JoeSchmoe007 has a reputation beyond reputeJoeSchmoe007 has a reputation beyond repute
Re: Recirculate Mystery Logic

See my post #24 below
__________________
Reply With Quote
  #12  
Old 02-07-2011, 03:43 PM
Member
 
Join Date: Dec 2010
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1374
GC2011 is on a distinguished road
Re: Recirculate Mystery Logic

Exactly, I always keep mine in manual mode. I never use auto mode because the fan is always screaming to make it to the set temperature. I do without all the noise and wait a few minutes longer.
__________________

__________________
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mystery flat tire violant00 Troubleshooting/Problems 20 01-10-2011 12:36 PM
Mystery codes!!!! Badwolf77 Troubleshooting/Problems 5 06-24-2010 01:59 AM
mystery leak??? Dylans3960ccs Troubleshooting/Problems 12 09-21-2009 04:18 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 04:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community