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Old 08-13-2014, 06:49 AM
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2014 New Jeep Questions - fogging, tailgate locking

Hi,

Some newbie questions...

1. In my previous cars when the air cond is on, even with recirculate on too I never got any window fogging as the air cond dried the air. With my 2014 Laredo even with recirc off and air cond on I get the windscreen fogging up and have to turn on the front defrost. That does work but wonder why the air cond by itself is not enough ? Is this normal with Jeeps ? Why ?

2. Today my wife picked me up (drove up engine running) and I went to put my bag in the back and it was locked and wouldnt unlock. Went into teh car and locked and unlocked the central locking with the buttons by the driver and the tailgate was still locked ? Engine was always on and the car is setup to auto lock doors when you drive off. Is this normal and if so how do you unlock the tailgate ?

thanks,
Seedar.
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Old 08-13-2014, 06:54 AM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

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Originally Posted by seedar View Post
Hi,

Some newbie questions...


2. Today my wife picked me up (drove up engine running) and I went to put my bag in the back and it was locked and wouldnt unlock. Went into teh car and locked and unlocked the central locking with the buttons by the driver and the tailgate was still locked ? Engine was always on and the car is setup to auto lock doors when you drive off. Is this normal and if so how do you unlock the tailgate ?

thanks,
Seedar.
Will not open until placed in "P" Park from my experience.

Regards

Adrian
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  #3  
Old 08-13-2014, 06:55 AM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

Thanks, I guess that makes sense for safety reasons.
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Old 08-13-2014, 04:06 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

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Originally Posted by adriwood View Post
Will not open until placed in "P" Park from my experience.
Sorry to hijack the thread, but that sounds like our Holden Barina (Chevrolet in the US) - you can have the engine running but can't release the hatch/boot until it's in Park.
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Old 08-13-2014, 07:21 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

Had the same problem the other day, I stopped, but not in park, the missus got out of the front to open the rear door and help one of the kids out, and she couldn't open it. Took a few dirty looks at me before I realised it was my fault

On the aircon fogging, where I live I always need to turn on the front defrost in any car if it has been raining. Otherwise, I don't have a problem in the Jeep or any other car.
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Old 08-13-2014, 07:40 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

The car has to be in either park or neutral for the tailgate to work.
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Old 08-13-2014, 07:41 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

Thanks for all the replies on the tailgate.

On the other question - when the A/C is on does the compressor always run and the dried, cooled air is heated if necessary to the required temp (like I am used to in previous vehicles). OR in the GC does the compressor only run if the air temp is above what is required and so no drying of the air occurs unless its hot ?
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Old 08-13-2014, 07:45 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

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Originally Posted by seedar View Post
Hi,

Some newbie questions...

1. In my previous cars when the air cond is on, even with recirculate on too I never got any window fogging as the air cond dried the air. With my 2014 Laredo even with recirc off and air cond on I get the windscreen fogging up and have to turn on the front defrost. That does work but wonder why the air cond by itself is not enough ? Is this normal with Jeeps ? Why ?
Can you describe the exact conditions when you experience window fogging? Like...

Does this happen when you first turn the AC on?

What temp do you have the AC set at and what's the outdoor temp at?
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Old 08-13-2014, 07:51 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

Sure, should have included that.

Inside temp set to 21C, Outside temp could be 8C, A/C switch ON (not auto) and recirc off. All will be good and then windscreen will start fogging up, not after any setting change, just after a while driving, switch to front defrost and it clears fairly quickly, go back to previous setting and after a while it fogs up again....
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Old 08-13-2014, 08:02 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

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Originally Posted by seedar View Post
Sure, should have included that.

Inside temp set to 21C, Outside temp could be 8C, A/C switch ON (not auto) and recirc off. All will be good and then windscreen will start fogging up, not after any setting change, just after a while driving, switch to front defrost and it clears fairly quickly, go back to previous setting and after a while it fogs up again....

21C = 69.8F
8C = 46.4F

I'm curious as to why you're running your AC with an outdoor air temp that low? That would definitely fog up the windshield, usually on the outside.

You'd be better off running it at whatever temp setting is comfortable to you and on Auto, not manual AC.
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Old 08-13-2014, 08:11 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

But then it would still fog up.

I am used to running the a/c most of the time, I then never get fogging even on recirculate as the air is always dried and have always had reliable air cond operation as its used regularly which keeps seals and everything in good order. You get problems if A/C is left unused for months at a time - I know this is at the other extreme, but its worked well for me in the past vehicles. When the A/C is on and its cold outside the only impact of the a/c being on is that it dries the air inside - so no fogging.

Maybe I just have to change to my habits as all I can think of here is that the Jeep system doesnt actually run the compressor unless the air needs cooling. Does Eco Mode possibly enter the equation at all ?
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Old 08-13-2014, 08:41 PM
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Re: 2014 New Jeep Questions - fogging, tailgate locking

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Originally Posted by seedar View Post
But then it would still fog up.

I am used to running the a/c most of the time, I then never get fogging even on recirculate as the air is always dried and have always had reliable air cond operation as its used regularly which keeps seals and everything in good order. You get problems if A/C is left unused for months at a time - I know this is at the other extreme, but its worked well for me in the past vehicles. When the A/C is on and its cold outside the only impact of the a/c being on is that it dries the air inside - so no fogging.

Maybe I just have to change to my habits as all I can think of here is that the Jeep system doesnt actually run the compressor unless the air needs cooling. Does Eco Mode possibly enter the equation at all ?
I live in Wisconsin where winters are long. My cars go for months without running the AC... never had a problem yet because of it. On today's HVAC systems this shouldn't be a problem.

However, the AC compressor runs when you use the windshield defroster to ensure it blows dry air on the glass to prevent fogging.

Running the AC at the outside air temp you stated is a guarantee that your windshield will fog up. It's also not good for the system... you could potentially cause more problems than you're trying to avoid.

Even the act of you breathing normally puts enough moisture into the air to fog glass under the conditions you state.

The outside dewpoint level relative to the dewpoint inside your vehicle can also cause the windshield to fog on either side of the glass.

Eco mode should have no effect here.

Running your HVAC on auto will go a long way towards eliminating the annoyance of fogged glass.
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